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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:37:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:37:10 +0000 |
| commit | c9addba5cc770d2d231b34f6739f32c6be8690f1 (patch) | |
| tree | c643da154a95a1d163137135050bb47858a1654e /gl/m4 | |
| parent | Initial commit. (diff) | |
| download | man-db-c9addba5cc770d2d231b34f6739f32c6be8690f1.tar.xz man-db-c9addba5cc770d2d231b34f6739f32c6be8690f1.zip | |
Adding upstream version 2.12.0.upstream/2.12.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gl/m4')
238 files changed, 39297 insertions, 0 deletions
diff --git a/gl/m4/00gnulib.m4 b/gl/m4/00gnulib.m4 new file mode 100644 index 0000000..7fe03e0 --- /dev/null +++ b/gl/m4/00gnulib.m4 @@ -0,0 +1,85 @@ +# 00gnulib.m4 serial 8 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl This file must be named something that sorts before all other +dnl gnulib-provided .m4 files. It is needed until the clang fix has +dnl been included in Autoconf. + +# The following definitions arrange to use a compiler option +# -Werror=implicit-function-declaration in AC_CHECK_DECL, when the +# compiler is clang. Without it, clang implicitly declares "known" +# library functions in C mode, but not in C++ mode, which would cause +# Gnulib to omit a declaration and thus later produce an error in C++ +# mode. As of clang 9.0, these "known" functions are identified through +# LIBBUILTIN invocations in the LLVM source file +# llvm/tools/clang/include/clang/Basic/Builtins.def. +# It's not possible to AC_REQUIRE the extra tests from AC_CHECK_DECL, +# because AC_CHECK_DECL, like other Autoconf built-ins, is not supposed +# to AC_REQUIRE anything: some configure.ac files have their first +# AC_CHECK_DECL executed conditionally. Therefore append the extra tests +# to AC_PROG_CC. +AC_DEFUN([gl_COMPILER_CLANG], +[ +dnl AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([whether the compiler is clang], + [gl_cv_compiler_clang], + [dnl Use _AC_COMPILE_IFELSE instead of AC_EGREP_CPP, to avoid error + dnl "circular dependency of AC_LANG_COMPILER(C)" if AC_PROG_CC has + dnl not yet been invoked. + _AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #ifdef __clang__ + barfbarf + #endif + ]],[[]]) + ], + [gl_cv_compiler_clang=no], + [gl_cv_compiler_clang=yes]) + ]) +]) +AC_DEFUN([gl_COMPILER_PREPARE_CHECK_DECL], +[ +dnl AC_REQUIRE([AC_PROG_CC]) +dnl AC_REQUIRE([gl_COMPILER_CLANG]) + AC_CACHE_CHECK([for compiler option needed when checking for declarations], + [gl_cv_compiler_check_decl_option], + [if test $gl_cv_compiler_clang = yes; then + dnl Test whether the compiler supports the option + dnl '-Werror=implicit-function-declaration'. + save_ac_compile="$ac_compile" + ac_compile="$ac_compile -Werror=implicit-function-declaration" + dnl Use _AC_COMPILE_IFELSE instead of AC_COMPILE_IFELSE, to avoid a + dnl warning "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS". + _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[]])], + [gl_cv_compiler_check_decl_option='-Werror=implicit-function-declaration'], + [gl_cv_compiler_check_decl_option=none]) + ac_compile="$save_ac_compile" + else + gl_cv_compiler_check_decl_option=none + fi + ]) + if test "x$gl_cv_compiler_check_decl_option" != xnone; then + ac_compile_for_check_decl="$ac_compile $gl_cv_compiler_check_decl_option" + else + ac_compile_for_check_decl="$ac_compile" + fi +]) +dnl Redefine _AC_CHECK_DECL_BODY so that it references ac_compile_for_check_decl +dnl instead of ac_compile. If, for whatever reason, the override of AC_PROG_CC +dnl in zzgnulib.m4 is inactive, use the original ac_compile. +m4_define([_AC_CHECK_DECL_BODY], +[ ac_save_ac_compile="$ac_compile" + if test -n "$ac_compile_for_check_decl"; then + ac_compile="$ac_compile_for_check_decl" + fi] +m4_defn([_AC_CHECK_DECL_BODY])[ ac_compile="$ac_save_ac_compile" +]) + +# gl_00GNULIB +# ----------- +# Witness macro that this file has been included. Needed to force +# Automake to include this file prior to all other gnulib .m4 files. +AC_DEFUN([gl_00GNULIB]) diff --git a/gl/m4/__inline.m4 b/gl/m4/__inline.m4 new file mode 100644 index 0000000..acf8668 --- /dev/null +++ b/gl/m4/__inline.m4 @@ -0,0 +1,22 @@ +# Test for __inline keyword +dnl Copyright 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl___INLINE], +[ + AC_CACHE_CHECK([whether the compiler supports the __inline keyword], + [gl_cv_c___inline], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[typedef int foo_t; + static __inline foo_t foo (void) { return 0; }]], + [[return foo ();]])], + [gl_cv_c___inline=yes], + [gl_cv_c___inline=no])]) + if test $gl_cv_c___inline = yes; then + AC_DEFINE([HAVE___INLINE], [1], + [Define to 1 if the compiler supports the keyword '__inline'.]) + fi +]) diff --git a/gl/m4/absolute-header.m4 b/gl/m4/absolute-header.m4 new file mode 100644 index 0000000..e794764 --- /dev/null +++ b/gl/m4/absolute-header.m4 @@ -0,0 +1,100 @@ +# absolute-header.m4 serial 17 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Derek Price. + +# gl_ABSOLUTE_HEADER(HEADER1 HEADER2 ...) +# --------------------------------------- +# Find the absolute name of a header file, testing first if the header exists. +# If the header were sys/inttypes.h, this macro would define +# ABSOLUTE_SYS_INTTYPES_H to the '""' quoted absolute name of sys/inttypes.h +# in config.h +# (e.g. '#define ABSOLUTE_SYS_INTTYPES_H "///usr/include/sys/inttypes.h"'). +# The three "///" are to pacify Sun C 5.8, which otherwise would say +# "warning: #include of /usr/include/... may be non-portable". +# Use '""', not '<>', so that the /// cannot be confused with a C99 comment. +# Note: This macro assumes that the header file is not empty after +# preprocessing, i.e. it does not only define preprocessor macros but also +# provides some type/enum definitions or function/variable declarations. +AC_DEFUN([gl_ABSOLUTE_HEADER], +[AC_REQUIRE([AC_CANONICAL_HOST]) +AC_LANG_PREPROC_REQUIRE()dnl +m4_foreach_w([gl_HEADER_NAME], [$1], + [AS_VAR_PUSHDEF([gl_absolute_header], + [gl_cv_absolute_]m4_defn([gl_HEADER_NAME]))dnl + AC_CACHE_CHECK([absolute name of <]m4_defn([gl_HEADER_NAME])[>], + [gl_absolute_header], + [AS_VAR_PUSHDEF([ac_header_exists], + [ac_cv_header_]m4_defn([gl_HEADER_NAME]))dnl + AC_CHECK_HEADERS_ONCE(m4_defn([gl_HEADER_NAME]))dnl + if test AS_VAR_GET([ac_header_exists]) = yes; then + gl_ABSOLUTE_HEADER_ONE(m4_defn([gl_HEADER_NAME])) + fi + AS_VAR_POPDEF([ac_header_exists])dnl + ])dnl + AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_defn([gl_HEADER_NAME])), + ["AS_VAR_GET([gl_absolute_header])"], + [Define this to an absolute name of <]m4_defn([gl_HEADER_NAME])[>.]) + AS_VAR_POPDEF([gl_absolute_header])dnl +])dnl +])# gl_ABSOLUTE_HEADER + +# gl_ABSOLUTE_HEADER_ONE(HEADER) +# ------------------------------ +# Like gl_ABSOLUTE_HEADER, except that: +# - it assumes that the header exists, +# - it uses the current CPPFLAGS, +# - it does not cache the result, +# - it is silent. +AC_DEFUN([gl_ABSOLUTE_HEADER_ONE], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote([$1])[[>]])]) + dnl AIX "xlc -E" and "cc -E" omit #line directives for header files + dnl that contain only a #include of other header files and no + dnl non-comment tokens of their own. This leads to a failure to + dnl detect the absolute name of <dirent.h>, <signal.h>, <poll.h> + dnl and others. The workaround is to force preservation of comments + dnl through option -C. This ensures all necessary #line directives + dnl are present. GCC supports option -C as well. + case "$host_os" in + aix*) gl_absname_cpp="$ac_cpp -C" ;; + *) gl_absname_cpp="$ac_cpp" ;; + esac +changequote(,) + case "$host_os" in + mingw*) + dnl For the sake of native Windows compilers (excluding gcc), + dnl treat backslash as a directory separator, like /. + dnl Actually, these compilers use a double-backslash as + dnl directory separator, inside the + dnl # line "filename" + dnl directives. + gl_dirsep_regex='[/\\]' + ;; + *) + gl_dirsep_regex='\/' + ;; + esac + dnl A sed expression that turns a string into a basic regular + dnl expression, for use within "/.../". + gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g' + gl_header_literal_regex=`echo '$1' \ + | sed -e "$gl_make_literal_regex_sed"` + gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{ + s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/ + s|^/[^/]|//&| + p + q + }' +changequote([,]) + dnl eval is necessary to expand gl_absname_cpp. + dnl Ultrix and Pyramid sh refuse to redirect output of eval, + dnl so use subshell. + AS_VAR_SET([gl_cv_absolute_]AS_TR_SH([[$1]]), +[`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | + sed -n "$gl_absolute_header_sed"`]) +]) diff --git a/gl/m4/alloca.m4 b/gl/m4/alloca.m4 new file mode 100644 index 0000000..c685fac --- /dev/null +++ b/gl/m4/alloca.m4 @@ -0,0 +1,106 @@ +# alloca.m4 serial 21 +dnl Copyright (C) 2002-2004, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_ALLOCA], +[ + AC_REQUIRE([AC_FUNC_ALLOCA]) + if test $ac_cv_func_alloca_works = no; then + gl_PREREQ_ALLOCA + fi + + # Define an additional variable used in the Makefile substitution. + if test $ac_cv_working_alloca_h = yes; then + AC_CACHE_CHECK([for alloca as a compiler built-in], [gl_cv_rpl_alloca], [ + AC_EGREP_CPP([Need own alloca], [ +#if defined __GNUC__ || defined _AIX || defined _MSC_VER + Need own alloca +#endif + ], [gl_cv_rpl_alloca=yes], [gl_cv_rpl_alloca=no]) + ]) + if test $gl_cv_rpl_alloca = yes; then + dnl OK, alloca can be implemented through a compiler built-in. + AC_DEFINE([HAVE_ALLOCA], [1], + [Define to 1 if you have 'alloca' after including <alloca.h>, + a header that may be supplied by this distribution.]) + GL_GENERATE_ALLOCA_H=true + else + dnl alloca exists as a library function, i.e. it is slow and probably + dnl a memory leak. Don't define HAVE_ALLOCA in this case. + GL_GENERATE_ALLOCA_H=false + fi + else + GL_GENERATE_ALLOCA_H=true + fi + + if test $ac_cv_working_alloca_h = yes; then + HAVE_ALLOCA_H=1 + else + HAVE_ALLOCA_H=0 + fi + AC_SUBST([HAVE_ALLOCA_H]) +]) + +# Prerequisites of lib/alloca.c. +# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA. +AC_DEFUN([gl_PREREQ_ALLOCA], [:]) + +m4_version_prereq([2.70], [], [ + +# This works around a bug in autoconf <= 2.68 and has simplifications +# from 2.70. See: +# https://lists.gnu.org/r/bug-gnulib/2011-06/msg00277.html +# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=6cd9f12520b0d6f76d3230d7565feba1ecf29497 +# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=15edf7fd8094fd14a89d9891dd72a9624762597a + +# _AC_LIBOBJ_ALLOCA +# ----------------- +# Set up the LIBOBJ replacement of 'alloca'. Well, not exactly +# AC_LIBOBJ since we actually set the output variable 'ALLOCA'. +# Nevertheless, for Automake, AC_LIBSOURCES it. +m4_define([_AC_LIBOBJ_ALLOCA], +[# The SVR3 libPW and SVR4 libucb both contain incompatible functions +# that cause trouble. Some versions do not even contain alloca or +# contain a buggy version. If you still want to use their alloca, +# use ar to extract alloca.o from them instead of compiling alloca.c. +AC_LIBSOURCES(alloca.c) +AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])dnl +AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using 'alloca.c'.]) + +AC_CACHE_CHECK([stack direction for C alloca], + [ac_cv_c_stack_direction], +[AC_RUN_IFELSE([AC_LANG_SOURCE( +[AC_INCLUDES_DEFAULT +int +find_stack_direction (int *addr, int depth) +{ + int dir, dummy = 0; + if (! addr) + addr = &dummy; + *addr = addr < &dummy ? 1 : addr == &dummy ? 0 : -1; + dir = depth ? find_stack_direction (addr, depth - 1) : 0; + return dir + dummy; +} + +int +main (int argc, char **argv) +{ + return find_stack_direction (0, argc + !argv + 20) < 0; +}])], + [ac_cv_c_stack_direction=1], + [ac_cv_c_stack_direction=-1], + [ac_cv_c_stack_direction=0])]) +AH_VERBATIM([STACK_DIRECTION], +[/* If using the C implementation of alloca, define if you know the + direction of stack growth for your system; otherwise it will be + automatically deduced at runtime. + STACK_DIRECTION > 0 => grows toward higher addresses + STACK_DIRECTION < 0 => grows toward lower addresses + STACK_DIRECTION = 0 => direction of growth unknown */ +#undef STACK_DIRECTION])dnl +AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction) +])# _AC_LIBOBJ_ALLOCA +]) diff --git a/gl/m4/argp.m4 b/gl/m4/argp.m4 new file mode 100644 index 0000000..1f8578b --- /dev/null +++ b/gl/m4/argp.m4 @@ -0,0 +1,70 @@ +# argp.m4 serial 16 +dnl Copyright (C) 2003-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_ARGP], +[ + AC_REQUIRE([AC_C_INLINE]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS([program_invocation_name], + [], + [AC_DEFINE([GNULIB_PROGRAM_INVOCATION_NAME], [1], + [Define to 1 to add extern declaration of program_invocation_name to argp.h])], + [[#include <errno.h>]]) + AC_CHECK_DECLS([program_invocation_short_name], + [], + [AC_DEFINE([GNULIB_PROGRAM_INVOCATION_SHORT_NAME], [1], + [Define to 1 to add extern declaration of program_invocation_short_name to argp.h])], + [[#include <errno.h>]]) + + # Check if program_invocation_name and program_invocation_short_name + # are defined elsewhere. It is improbable that only one of them will + # be defined and other not, I prefer to stay on the safe side and to + # test each one separately. + AC_MSG_CHECKING([whether program_invocation_name is defined]) + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern char *program_invocation_name;]], + [[program_invocation_name = "test";]])], + [AC_DEFINE([HAVE_PROGRAM_INVOCATION_NAME], [1], + [Define if program_invocation_name is defined]) + AC_MSG_RESULT([yes]) + ], + [AC_MSG_RESULT([no])]) + + AC_MSG_CHECKING([whether program_invocation_short_name is defined]) + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern char *program_invocation_short_name;]], + [[program_invocation_short_name = "test";]])], + [AC_DEFINE([HAVE_PROGRAM_INVOCATION_SHORT_NAME], [1], + [Define if program_invocation_short_name is defined]) + AC_MSG_RESULT([yes]) + ], + [AC_MSG_RESULT([no])]) + + AC_CHECK_DECLS_ONCE([clearerr_unlocked]) + AC_CHECK_DECLS_ONCE([feof_unlocked]) + AC_CHECK_DECLS_ONCE([ferror_unlocked]) + AC_CHECK_DECLS_ONCE([fflush_unlocked]) + AC_CHECK_DECLS_ONCE([fgets_unlocked]) + AC_CHECK_DECLS_ONCE([fputc_unlocked]) + AC_CHECK_DECLS_ONCE([fputs_unlocked]) + AC_CHECK_DECLS_ONCE([fread_unlocked]) + AC_CHECK_DECLS_ONCE([fwrite_unlocked]) + AC_CHECK_DECLS_ONCE([getc_unlocked]) + AC_CHECK_DECLS_ONCE([getchar_unlocked]) + AC_CHECK_DECLS_ONCE([putc_unlocked]) + AC_CHECK_DECLS_ONCE([putchar_unlocked]) + AC_CHECK_FUNCS_ONCE([flockfile funlockfile]) + AC_CHECK_HEADERS_ONCE([features.h linewrap.h]) + AC_REQUIRE([AC_FUNC_STRERROR_R]) +]) + +dnl argp-parse.c depends on GNU getopt internals, therefore use GNU getopt +dnl always. +AC_DEFUN([gl_REPLACE_GETOPT_ALWAYS], []) diff --git a/gl/m4/asm-underscore.m4 b/gl/m4/asm-underscore.m4 new file mode 100644 index 0000000..65ae55a --- /dev/null +++ b/gl/m4/asm-underscore.m4 @@ -0,0 +1,83 @@ +# asm-underscore.m4 serial 5 +dnl Copyright (C) 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. Based on as-underscore.m4 in GNU clisp. + +# gl_ASM_SYMBOL_PREFIX +# Tests for the prefix of C symbols at the assembly language level and the +# linker level. This prefix is either an underscore or empty. Defines the +# C macro USER_LABEL_PREFIX to this prefix, and sets ASM_SYMBOL_PREFIX to +# a stringified variant of this prefix. + +AC_DEFUN([gl_ASM_SYMBOL_PREFIX], +[ + AC_REQUIRE([AC_PROG_EGREP]) + dnl We don't use GCC's __USER_LABEL_PREFIX__ here, because + dnl 1. It works only for GCC. + dnl 2. It is incorrectly defined on some platforms, in some GCC versions. + AC_REQUIRE([gl_C_ASM]) + AC_CACHE_CHECK( + [whether C symbols are prefixed with underscore at the linker level], + [gl_cv_prog_as_underscore], + [cat > conftest.c <<EOF +#ifdef __cplusplus +extern "C" int foo (void); +#endif +int foo(void) { return 0; } +EOF + # Look for the assembly language name in the .s file. + AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1 + if LC_ALL=C $EGREP '(^|[[^a-zA-Z0-9_]])_foo([[^a-zA-Z0-9_]]|$)' conftest.$gl_asmext >/dev/null; then + gl_cv_prog_as_underscore=yes + else + gl_cv_prog_as_underscore=no + fi + rm -f conftest* + ]) + if test $gl_cv_prog_as_underscore = yes; then + USER_LABEL_PREFIX=_ + else + USER_LABEL_PREFIX= + fi + AC_DEFINE_UNQUOTED([USER_LABEL_PREFIX], [$USER_LABEL_PREFIX], + [Define to the prefix of C symbols at the assembler and linker level, + either an underscore or empty.]) + ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"' + AC_SUBST([ASM_SYMBOL_PREFIX]) +]) + +# gl_C_ASM +# Determines how to produce an assembly language file from C source code. +# Sets the variables: +# gl_asmext - the extension of assembly language output, +# gl_c_asm_opt - the C compiler option that produces assembly language output. + +AC_DEFUN([gl_C_ASM], +[ + AC_EGREP_CPP([MicrosoftCompiler], + [ +#ifdef _MSC_VER +MicrosoftCompiler +#endif + ], + [dnl Microsoft's 'cl' and 'clang-cl' produce an .asm file, whereas 'clang' + dnl produces a .s file. Need to distinguish 'clang' and 'clang-cl'. + rm -f conftest* + echo 'int dummy;' > conftest.c + AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c) >/dev/null 2>&1 + if test -f conftest.o; then + gl_asmext='s' + gl_c_asm_opt='-S' + else + gl_asmext='asm' + gl_c_asm_opt='-c -Fa' + fi + rm -f conftest* + ], + [gl_asmext='s' + gl_c_asm_opt='-S' + ]) +]) diff --git a/gl/m4/assert_h.m4 b/gl/m4/assert_h.m4 new file mode 100644 index 0000000..d255855 --- /dev/null +++ b/gl/m4/assert_h.m4 @@ -0,0 +1,73 @@ +# assert-h.m4 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_DEFUN([gl_ASSERT_H], +[ + AC_CACHE_CHECK([for static_assert], [gl_cv_static_assert], + [gl_save_CFLAGS=$CFLAGS + for gl_working in "yes, a keyword" "yes, an <assert.h> macro"; do + AS_CASE([$gl_working], + [*assert.h*], [CFLAGS="$gl_save_CFLAGS -DINCLUDE_ASSERT_H"]) + + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#if defined __clang__ && __STDC_VERSION__ < 202311 + #pragma clang diagnostic error "-Wc2x-extensions" + #pragma clang diagnostic error "-Wc++1z-extensions" + #endif + #ifdef INCLUDE_ASSERT_H + #include <assert.h> + #endif + static_assert (2 + 2 == 4, "arithmetic does not work"); + static_assert (2 + 2 == 4); + ]], + [[ + static_assert (sizeof (char) == 1, "sizeof does not work"); + static_assert (sizeof (char) == 1); + ]])], + [gl_cv_static_assert=$gl_working], + [gl_cv_static_assert=no]) + CFLAGS=$gl_save_CFLAGS + test "$gl_cv_static_assert" != no && break + done]) + + GL_GENERATE_ASSERT_H=false + AS_CASE([$gl_cv_static_assert], + [yes*keyword*], + [AC_DEFINE([HAVE_C_STATIC_ASSERT], [1], + [Define to 1 if the static_assert keyword works.])], + [no], + [GL_GENERATE_ASSERT_H=true + gl_NEXT_HEADERS([assert.h])]) + + dnl The "zz" puts this toward config.h's end, to avoid potential + dnl collisions with other definitions. + dnl #undef assert so that programs are not tempted to use it without + dnl specifically including assert.h. + dnl #undef __ASSERT_H__ so that on IRIX, when programs later include + dnl <assert.h>, this include actually defines assert. + dnl Break the #undef_s apart with a comment so that 'configure' does + dnl not comment them out. + AH_VERBATIM([zzstatic_assert], +[#if (!defined HAVE_C_STATIC_ASSERT && !defined assert \ + && (!defined __cplusplus \ + || (__cpp_static_assert < 201411 \ + && __GNUG__ < 6 && __clang_major__ < 6))) + #include <assert.h> + #undef/**/assert + #ifdef __sgi + #undef/**/__ASSERT_H__ + #endif + /* Solaris 11.4 <assert.h> defines static_assert as a macro with 2 arguments. + We need it also to be invocable with a single argument. */ + #if defined __sun && (__STDC_VERSION__ - 0 >= 201112L) && !defined __cplusplus + #undef/**/static_assert + #define static_assert _Static_assert + #endif +#endif]) +]) diff --git a/gl/m4/btowc.m4 b/gl/m4/btowc.m4 new file mode 100644 index 0000000..1cd100a --- /dev/null +++ b/gl/m4/btowc.m4 @@ -0,0 +1,160 @@ +# btowc.m4 serial 13 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_BTOWC], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + + dnl Check whether <wchar.h> is usable at all, first. Otherwise the test + dnl program below may lead to an endless loop. See + dnl <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. + AC_REQUIRE([gl_WCHAR_H_INLINE_OK]) + + AC_CHECK_FUNCS_ONCE([btowc]) + if test $ac_cv_func_btowc = no; then + HAVE_BTOWC=0 + else + + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl Cygwin 1.7.2 btowc('\0') is WEOF, not 0. + AC_CACHE_CHECK([whether btowc(0) is correct], + [gl_cv_func_btowc_nul], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <wchar.h> +int main () +{ + if (btowc ('\0') != 0) + return 1; + return 0; +}]])], + [gl_cv_func_btowc_nul=yes], + [gl_cv_func_btowc_nul=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess no on Cygwin. + cygwin*) gl_cv_func_btowc_nul="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_btowc_nul="guessing yes" ;; + # Guess yes otherwise. + *) gl_cv_func_btowc_nul="guessing yes" ;; + esac +changequote([,])dnl + ]) + ]) + + dnl IRIX 6.5 btowc(EOF) is 0xFF, not WEOF. + AC_CACHE_CHECK([whether btowc(EOF) is correct], + [gl_cv_func_btowc_eof], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on IRIX. + irix*) gl_cv_func_btowc_eof="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_btowc_eof="guessing yes" ;; + # Guess yes otherwise. + *) gl_cv_func_btowc_eof="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdio.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + if (btowc (EOF) != WEOF) + return 1; + } + return 0; +}]])], + [gl_cv_func_btowc_eof=yes], + [gl_cv_func_btowc_eof=no], + [:]) + fi + ]) + + dnl On mingw, in the C locale, btowc is inconsistent with mbrtowc: + dnl mbrtowc avoids calling MultiByteToWideChar when MB_CUR_MAX is 1 and + dnl ___lc_codepage_func() is 0, but btowc is lacking this special case. + AC_CHECK_FUNCS_ONCE([mbrtowc]) + AC_CACHE_CHECK([whether btowc is consistent with mbrtowc in the C locale], + [gl_cv_func_btowc_consistent], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +int main () +{ +#if HAVE_MBRTOWC + wint_t wc1 = btowc (0x80); + wchar_t wc2 = (wchar_t) 0xbadface; + char buf[1] = { 0x80 }; + mbstate_t state; + memset (&state, 0, sizeof (mbstate_t)); + if (mbrtowc (&wc2, buf, 1, &state) != 1 || wc1 != wc2) + return 1; +#endif + return 0; +}]])], + [gl_cv_func_btowc_consistent=yes], + [gl_cv_func_btowc_consistent=no], + [case "$host_os" in + # Guess no on mingw. + mingw*) AC_EGREP_CPP([Problem], [ +#ifdef __MINGW32__ + Problem +#endif + ], + [gl_cv_func_btowc_consistent="guessing no"], + [gl_cv_func_btowc_consistent="guessing yes"]) + ;; + # Guess yes otherwise. + *) gl_cv_func_btowc_consistent="guessing yes" ;; + esac + ]) + ]) + + case "$gl_cv_func_btowc_nul" in + *yes) ;; + *) REPLACE_BTOWC=1 ;; + esac + case "$gl_cv_func_btowc_eof" in + *yes) ;; + *) REPLACE_BTOWC=1 ;; + esac + case "$gl_cv_func_btowc_consistent" in + *yes) ;; + *) REPLACE_BTOWC=1 ;; + esac + if test $REPLACE_BTOWC = 0; then + gl_MBRTOWC_C_LOCALE + case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in + *yes) ;; + *) REPLACE_BTOWC=1 ;; + esac + fi + fi +]) + +# Prerequisites of lib/btowc.c. +AC_DEFUN([gl_PREREQ_BTOWC], [ + : + AC_CHECK_FUNCS_ONCE([mbrtowc]) +]) diff --git a/gl/m4/builtin-expect.m4 b/gl/m4/builtin-expect.m4 new file mode 100644 index 0000000..531ed48 --- /dev/null +++ b/gl/m4/builtin-expect.m4 @@ -0,0 +1,49 @@ +dnl Check for __builtin_expect. + +dnl Copyright 2016-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN([gl___BUILTIN_EXPECT], +[ + AC_CACHE_CHECK([for __builtin_expect], + [gl_cv___builtin_expect], + [AC_LINK_IFELSE( + [AC_LANG_SOURCE([[ + int + main (int argc, char **argv) + { + argc = __builtin_expect (argc, 100); + return argv[argc != 100][0]; + }]])], + [gl_cv___builtin_expect=yes], + [AC_LINK_IFELSE( + [AC_LANG_SOURCE([[ + #include <builtins.h> + int + main (int argc, char **argv) + { + argc = __builtin_expect (argc, 100); + return argv[argc != 100][0]; + }]])], + [gl_cv___builtin_expect="in <builtins.h>"], + [gl_cv___builtin_expect=no])])]) + if test "$gl_cv___builtin_expect" = yes; then + AC_DEFINE([HAVE___BUILTIN_EXPECT], [1]) + elif test "$gl_cv___builtin_expect" = "in <builtins.h>"; then + AC_DEFINE([HAVE___BUILTIN_EXPECT], [2]) + fi + AH_VERBATIM([HAVE___BUILTIN_EXPECT], + [/* Define to 1 if the compiler supports __builtin_expect, + and to 2 if <builtins.h> does. */ +#undef HAVE___BUILTIN_EXPECT +#ifndef HAVE___BUILTIN_EXPECT +# define __builtin_expect(e, c) (e) +#elif HAVE___BUILTIN_EXPECT == 2 +# include <builtins.h> +#endif + ]) +]) diff --git a/gl/m4/c-bool.m4 b/gl/m4/c-bool.m4 new file mode 100644 index 0000000..f614371 --- /dev/null +++ b/gl/m4/c-bool.m4 @@ -0,0 +1,51 @@ +# Check for bool that conforms to C2023. + +dnl Copyright 2022-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_C_BOOL], +[ + AC_CACHE_CHECK([for bool, true, false], [gl_cv_c_bool], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([[ + #if true == false + #error "true == false" + #endif + extern bool b; + bool b = true == false;]])], + [gl_cv_c_bool=yes], + [gl_cv_c_bool=no])]) + if test "$gl_cv_c_bool" = yes; then + AC_DEFINE([HAVE_C_BOOL], [1], + [Define to 1 if bool, true and false work as per C2023.]) + fi + + AC_CHECK_HEADERS_ONCE([stdbool.h]) + + dnl The "zz" puts this toward config.h's end, to avoid potential + dnl collisions with other definitions. + dnl If 'bool', 'true' and 'false' do not work, arrange for them to work. + dnl In C, this means including <stdbool.h> if it is not already included. + dnl However, if the preprocessor mistakenly treats 'true' as 0, + dnl define it to a bool expression equal to 1; this is needed in + dnl Sun C++ 5.11 (Oracle Solaris Studio 12.2, 2010) and older. + AH_VERBATIM([zzbool], +[#ifndef HAVE_C_BOOL +# if !defined __cplusplus && !defined __bool_true_false_are_defined +# if HAVE_STDBOOL_H +# include <stdbool.h> +# else +# if defined __SUNPRO_C +# error "<stdbool.h> is not usable with this configuration. To make it usable, add -D_STDC_C99= to $CC." +# else +# error "<stdbool.h> does not exist on this platform. Use gnulib module 'stdbool-c99' instead of gnulib module 'stdbool'." +# endif +# endif +# endif +# if !true +# define true (!false) +# endif +#endif]) +]) diff --git a/gl/m4/calloc.m4 b/gl/m4/calloc.m4 new file mode 100644 index 0000000..3789cbf --- /dev/null +++ b/gl/m4/calloc.m4 @@ -0,0 +1,83 @@ +# calloc.m4 serial 30 + +# Copyright (C) 2004-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Jim Meyering. + +# Determine whether calloc (N, S) returns non-NULL when N*S is zero, +# and returns NULL when N*S overflows. +# If so, define HAVE_CALLOC. Otherwise, define calloc to rpl_calloc +# and arrange to use a calloc wrapper function that does work in that case. + +# _AC_FUNC_CALLOC_IF([IF-WORKS], [IF-NOT]) +# ------------------------------------- +# If calloc is compatible with GNU calloc, run IF-WORKS, otherwise, IF-NOT. +AC_DEFUN([_AC_FUNC_CALLOC_IF], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether calloc (0, n) and calloc (n, 0) return nonnull], + [ac_cv_func_calloc_0_nonnull], + [if test $cross_compiling != yes; then + ac_cv_func_calloc_0_nonnull=yes + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT], + [[int result = 0; + char * volatile p = calloc (0, 0); + if (!p) + result |= 1; + free (p); + return result; + ]])], + [], + [ac_cv_func_calloc_0_nonnull=no]) + else + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) ac_cv_func_calloc_0_nonnull="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) ac_cv_func_calloc_0_nonnull="guessing yes" ;; + # Guess yes on native Windows. + mingw*) ac_cv_func_calloc_0_nonnull="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_calloc_0_nonnull="$gl_cross_guess_normal" ;; + esac + fi + ]) + AS_CASE([$ac_cv_func_calloc_0_nonnull], [*yes], [$1], [$2]) +]) + + +# gl_FUNC_CALLOC_GNU +# ------------------ +# Replace calloc if it is not compatible with GNU libc. +AC_DEFUN([gl_FUNC_CALLOC_GNU], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_CALLOC_POSIX]) + REPLACE_CALLOC_FOR_CALLOC_GNU="$REPLACE_CALLOC_FOR_CALLOC_POSIX" + if test $REPLACE_CALLOC_FOR_CALLOC_GNU = 0; then + _AC_FUNC_CALLOC_IF([], [REPLACE_CALLOC_FOR_CALLOC_GNU=1]) + fi +])# gl_FUNC_CALLOC_GNU + +# gl_FUNC_CALLOC_POSIX +# -------------------- +# Test whether 'calloc' is POSIX compliant (sets errno to ENOMEM when it +# fails, and doesn't mess up with ptrdiff_t or size_t overflow), +# and replace calloc if it is not. +AC_DEFUN([gl_FUNC_CALLOC_POSIX], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_MALLOC_POSIX]) + if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then + REPLACE_CALLOC_FOR_CALLOC_POSIX=1 + fi + dnl Although in theory we should also test for size_t overflow, + dnl in practice testing for ptrdiff_t overflow suffices + dnl since PTRDIFF_MAX <= SIZE_MAX on all known Gnulib porting targets. + dnl A separate size_t test would slow down 'configure'. +]) diff --git a/gl/m4/canonicalize.m4 b/gl/m4/canonicalize.m4 new file mode 100644 index 0000000..d319645 --- /dev/null +++ b/gl/m4/canonicalize.m4 @@ -0,0 +1,185 @@ +# canonicalize.m4 serial 38 + +dnl Copyright (C) 2003-2007, 2009-2023 Free Software Foundation, Inc. + +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Provides canonicalize_file_name and canonicalize_filename_mode, but does +# not provide or fix realpath. +AC_DEFUN([gl_FUNC_CANONICALIZE_FILENAME_MODE], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + AC_CHECK_FUNCS_ONCE([canonicalize_file_name]) + gl_CHECK_FUNCS_ANDROID([faccessat], [[#include <unistd.h>]]) + AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) + AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) + if test $ac_cv_func_canonicalize_file_name = no; then + HAVE_CANONICALIZE_FILE_NAME=0 + else + case "$gl_cv_func_realpath_works" in + *yes) ;; + *) REPLACE_CANONICALIZE_FILE_NAME=1 ;; + esac + fi +]) + +# Provides canonicalize_file_name and realpath. +AC_DEFUN([gl_CANONICALIZE_LGPL], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_CANONICALIZE_LGPL_SEPARATE]) + if test $ac_cv_func_canonicalize_file_name = no; then + HAVE_CANONICALIZE_FILE_NAME=0 + if test $ac_cv_func_realpath = no; then + HAVE_REALPATH=0 + else + case "$gl_cv_func_realpath_works" in + *yes) ;; + *) REPLACE_REALPATH=1 ;; + esac + fi + else + case "$gl_cv_func_realpath_works" in + *yes) + ;; + *) + REPLACE_CANONICALIZE_FILE_NAME=1 + REPLACE_REALPATH=1 + ;; + esac + fi +]) + +# Like gl_CANONICALIZE_LGPL, except prepare for separate compilation +# (no REPLACE_CANONICALIZE_FILE_NAME, no REPLACE_REALPATH, no AC_LIBOBJ). +AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + AC_CHECK_FUNCS_ONCE([canonicalize_file_name]) + gl_CHECK_FUNCS_ANDROID([faccessat], [[#include <unistd.h>]]) + + dnl On native Windows, we use _getcwd(), regardless whether getcwd() is + dnl available through the linker option '-loldnames'. + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) ;; + *) AC_CHECK_FUNCS([getcwd]) ;; + esac + + AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) + AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) + AC_CHECK_HEADERS_ONCE([sys/param.h]) +]) + +# Check whether realpath works. Assume that if a platform has both +# realpath and canonicalize_file_name, but the former is broken, then +# so is the latter. +AC_DEFUN([gl_FUNC_REALPATH_WORKS], +[ + AC_CHECK_FUNCS_ONCE([realpath lstat]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [ + rm -rf conftest.a conftest.d + touch conftest.a + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.a conftest.l + fi + mkdir conftest.d + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + ]GL_NOCRASH[ + #include <errno.h> + #include <stdlib.h> + #include <string.h> + ]], [[ + int result = 0; + /* This test fails on Solaris 10. */ + { + char *name = realpath ("conftest.a", NULL); + if (!(name && *name == '/')) + result |= 1; + free (name); + } + /* This test fails on older versions of Cygwin. */ + { + char *name = realpath ("conftest.b/../conftest.a", NULL); + if (name != NULL) + result |= 2; + free (name); + } + /* This test fails on Cygwin 2.9. */ + #if HAVE_LSTAT + { + char *name = realpath ("conftest.l/../conftest.a", NULL); + if (name != NULL || errno != ENOTDIR) + result |= 4; + free (name); + } + #endif + /* This test fails on Mac OS X 10.13, OpenBSD 6.0. */ + { + char *name = realpath ("conftest.a/", NULL); + if (name != NULL) + result |= 8; + free (name); + } + /* This test fails on AIX 7, Solaris 10. */ + { + char *name1 = realpath (".", NULL); + char *name2 = realpath ("conftest.d//./..", NULL); + if (! name1 || ! name2 || strcmp (name1, name2)) + result |= 16; + free (name1); + free (name2); + } + #ifdef __linux__ + /* On Linux, // is the same as /. See also double-slash-root.m4. + realpath() should respect this. + This test fails on musl libc 1.2.2. */ + { + char *name = realpath ("//", NULL); + if (! name || strcmp (name, "/")) + result |= 32; + free (name); + } + #endif + return result; + ]]) + ], + [gl_cv_func_realpath_works=yes], + [case $? in + 32) gl_cv_func_realpath_works=nearly ;; + *) gl_cv_func_realpath_works=no ;; + esac + ], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_realpath_works="guessing yes" ;; + # Guess 'nearly' on musl systems. + *-musl*) gl_cv_func_realpath_works="guessing nearly" ;; + # Guess no on Cygwin. + cygwin*) gl_cv_func_realpath_works="guessing no" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_realpath_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_realpath_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.a conftest.l conftest.d + ]) + case "$gl_cv_func_realpath_works" in + *yes) + AC_DEFINE([FUNC_REALPATH_WORKS], [1], + [Define to 1 if realpath() can malloc memory, always gives an absolute path, and handles leading slashes and a trailing slash correctly.]) + ;; + *nearly) + AC_DEFINE([FUNC_REALPATH_NEARLY_WORKS], [1], + [Define to 1 if realpath() can malloc memory, always gives an absolute path, and handles a trailing slash correctly.]) + ;; + esac +]) diff --git a/gl/m4/chdir-long.m4 b/gl/m4/chdir-long.m4 new file mode 100644 index 0000000..4a92b30 --- /dev/null +++ b/gl/m4/chdir-long.m4 @@ -0,0 +1,30 @@ +#serial 17 + +# Use Gnulib's robust chdir function. +# It can handle arbitrarily long directory names, which means +# that when it is given the name of an existing directory, it +# never fails with ENAMETOOLONG. +# Arrange to compile chdir-long.c only on systems that define PATH_MAX. + +dnl Copyright (C) 2004-2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Jim Meyering. + +AC_DEFUN([gl_FUNC_CHDIR_LONG], +[ + AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) + AC_CACHE_CHECK([whether this system supports file names of any length], + [gl_cv_have_unlimited_file_name_length], + [AC_EGREP_CPP([have_arbitrary_file_name_length_limit], + gl_PATHMAX_SNIPPET[ +#ifdef PATH_MAX +have_arbitrary_file_name_length_limit +#endif], + [gl_cv_have_unlimited_file_name_length=no], + [gl_cv_have_unlimited_file_name_length=yes])]) +]) + +AC_DEFUN([gl_PREREQ_CHDIR_LONG], [:]) diff --git a/gl/m4/chown.m4 b/gl/m4/chown.m4 new file mode 100644 index 0000000..3e05f85 --- /dev/null +++ b/gl/m4/chown.m4 @@ -0,0 +1,218 @@ +# serial 35 +# Determine whether we need the chown wrapper. + +dnl Copyright (C) 1997-2001, 2003-2005, 2007, 2009-2023 Free Software +dnl Foundation, Inc. + +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# chown should accept arguments of -1 for uid and gid, and it should +# dereference symlinks. If it doesn't, arrange to use the replacement +# function. + +# From Jim Meyering. + +# This is taken from the following Autoconf patch: +# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9 +AC_DEFUN([AC_FUNC_CHOWN], +[ + AC_REQUIRE([AC_TYPE_UID_T])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles + AC_CHECK_HEADERS([unistd.h]) + AC_CACHE_CHECK([for working chown], + [ac_cv_func_chown_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT + [#include <fcntl.h> + ]GL_MDA_DEFINES], + [[ + char *f = "conftest.chown"; + struct stat before, after; + + if (creat (f, 0600) < 0) + return 1; + if (stat (f, &before) < 0) + return 1; + if (chown (f, (uid_t) -1, (gid_t) -1) == -1) + return 1; + if (stat (f, &after) < 0) + return 1; + return ! (before.st_uid == after.st_uid && before.st_gid == after.st_gid); + ]]) + ], + [ac_cv_func_chown_works=yes], + [ac_cv_func_chown_works=no], + [case "$host_os" in # (( + # Guess yes on Linux systems. + linux-* | linux) ac_cv_func_chown_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) ac_cv_func_chown_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) ac_cv_func_chown_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_chown_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.chown + ]) + case "$ac_cv_func_chown_works" in + *yes) + AC_DEFINE([HAVE_CHOWN], [1], + [Define to 1 if your system has a working `chown' function.]) + ;; + esac +])# AC_FUNC_CHOWN + +AC_DEFUN_ONCE([gl_FUNC_CHOWN], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_TYPE_UID_T]) + AC_REQUIRE([AC_FUNC_CHOWN]) + AC_REQUIRE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_FUNCS_ONCE([chown fchown]) + + dnl mingw lacks chown altogether. + if test $ac_cv_func_chown = no; then + HAVE_CHOWN=0 + else + dnl Some old systems treated chown like lchown. + case "$gl_cv_func_chown_follows_symlink" in + *yes) ;; + *) REPLACE_CHOWN=1 ;; + esac + + dnl Some old systems tried to use uid/gid -1 literally. + case "$ac_cv_func_chown_works" in + *no) + AC_DEFINE([CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE], [1], + [Define if chown is not POSIX compliant regarding IDs of -1.]) + REPLACE_CHOWN=1 + ;; + esac + + dnl Solaris 9 ignores trailing slash. + dnl FreeBSD 7.2 mishandles trailing slash on symlinks. + dnl Likewise for AIX 7.1. + AC_CACHE_CHECK([whether chown honors trailing slash], + [gl_cv_func_chown_slash_works], + [touch conftest.file && rm -f conftest.link + AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +]GL_MDA_DEFINES], + [[if (symlink ("conftest.file", "conftest.link")) return 1; + if (chown ("conftest.link/", getuid (), getgid ()) == 0) return 2; + ]])], + [gl_cv_func_chown_slash_works=yes], + [gl_cv_func_chown_slash_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_chown_slash_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_chown_slash_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_chown_slash_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.link conftest.file]) + case "$gl_cv_func_chown_slash_works" in + *yes) ;; + *) + AC_DEFINE([CHOWN_TRAILING_SLASH_BUG], [1], + [Define to 1 if chown mishandles trailing slash.]) + REPLACE_CHOWN=1 + ;; + esac + + dnl OpenBSD fails to update ctime if ownership does not change. + AC_CACHE_CHECK([whether chown always updates ctime], + [gl_cv_func_chown_ctime_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <fcntl.h> +#include <sys/stat.h> +]GL_MDA_DEFINES], + [[struct stat st1, st2; + if (close (creat ("conftest.file", 0600))) return 1; + if (stat ("conftest.file", &st1)) return 2; + sleep (1); + if (chown ("conftest.file", st1.st_uid, st1.st_gid)) return 3; + if (stat ("conftest.file", &st2)) return 4; + if (st2.st_ctime <= st1.st_ctime) return 5; + ]])], + [gl_cv_func_chown_ctime_works=yes], + [gl_cv_func_chown_ctime_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_chown_ctime_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_chown_ctime_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_chown_ctime_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.file]) + case "$gl_cv_func_chown_ctime_works" in + *yes) ;; + *) + AC_DEFINE([CHOWN_CHANGE_TIME_BUG], [1], [Define to 1 if chown fails + to change ctime when at least one argument was not -1.]) + REPLACE_CHOWN=1 + ;; + esac + fi +]) + +# Determine whether chown follows symlinks (it should). +AC_DEFUN_ONCE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK], +[ + AC_CACHE_CHECK( + [whether chown dereferences symlinks], + [gl_cv_func_chown_follows_symlink], + [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +]GL_MDA_DEFINES[ + int + main () + { + int result = 0; + char const *dangling_symlink = "conftest.dangle"; + + unlink (dangling_symlink); + if (symlink ("conftest.no-such", dangling_symlink)) + abort (); + + /* Exit successfully on a conforming system, + i.e., where chown must fail with ENOENT. */ + if (chown (dangling_symlink, getuid (), getgid ()) == 0) + result |= 1; + if (errno != ENOENT) + result |= 2; + return result; + } + ]])], + [gl_cv_func_chown_follows_symlink=yes], + [gl_cv_func_chown_follows_symlink=no], + [gl_cv_func_chown_follows_symlink="guessing yes"] + ) + ] + ) + + case "$gl_cv_func_chown_follows_symlink" in + *yes) ;; + *) + AC_DEFINE([CHOWN_MODIFIES_SYMLINK], [1], + [Define if chown modifies symlinks.]) + ;; + esac +]) diff --git a/gl/m4/clock_time.m4 b/gl/m4/clock_time.m4 new file mode 100644 index 0000000..d624a73 --- /dev/null +++ b/gl/m4/clock_time.m4 @@ -0,0 +1,35 @@ +# clock_time.m4 serial 12 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Check for clock_getres, clock_gettime and clock_settime, +# and set CLOCK_TIME_LIB. +# For a program named, say foo, you should add a line like the following +# in the corresponding Makefile.am file: +# foo_LDADD = $(LDADD) $(CLOCK_TIME_LIB) + +AC_DEFUN([gl_CLOCK_TIME], +[ + dnl Persuade glibc and Solaris <time.h> to declare these functions. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function. + # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. + + # Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all* + # programs in the package would end up linked with that potentially-shared + # library, inducing unnecessary run-time overhead. + CLOCK_TIME_LIB= + AC_SUBST([CLOCK_TIME_LIB]) + gl_saved_libs=$LIBS + AC_SEARCH_LIBS([clock_gettime], [rt posix4], + [test "$ac_cv_search_clock_gettime" = "none required" || + CLOCK_TIME_LIB=$ac_cv_search_clock_gettime]) + AC_CHECK_FUNCS([clock_getres clock_gettime clock_settime]) + LIBS=$gl_saved_libs + # For backward compatibility. + LIB_CLOCK_GETTIME="$CLOCK_TIME_LIB" + AC_SUBST([LIB_CLOCK_GETTIME]) +]) diff --git a/gl/m4/close.m4 b/gl/m4/close.m4 new file mode 100644 index 0000000..0feabd6 --- /dev/null +++ b/gl/m4/close.m4 @@ -0,0 +1,35 @@ +# close.m4 serial 10 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_FUNC_CLOSE], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + m4_ifdef([gl_MSVC_INVAL], [ + AC_REQUIRE([gl_MSVC_INVAL]) + if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then + REPLACE_CLOSE=1 + fi + ]) + m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [ + gl_PREREQ_SYS_H_WINSOCK2 + if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then + dnl Even if the 'socket' module is not used here, another part of the + dnl application may use it and pass file descriptors that refer to + dnl sockets to the close() function. So enable the support for sockets. + REPLACE_CLOSE=1 + fi + ]) + dnl Replace close() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + if test $REPLACE_CLOSE = 0; then + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_CLOSE=1 + fi + fi + ]) +]) diff --git a/gl/m4/closedir.m4 b/gl/m4/closedir.m4 new file mode 100644 index 0000000..7e702de --- /dev/null +++ b/gl/m4/closedir.m4 @@ -0,0 +1,34 @@ +# closedir.m4 serial 7 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_CLOSEDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_FUNCS([closedir]) + if test $ac_cv_func_closedir = no; then + HAVE_CLOSEDIR=0 + else + dnl Replace closedir() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_CLOSEDIR=1 + fi + dnl Replace closedir() for supporting the gnulib-defined dirfd() function. + case $host_os in + os2*) REPLACE_CLOSEDIR=1 ;; + esac + dnl Replace closedir() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_CLOSEDIR=1 + fi + ]) + fi +]) diff --git a/gl/m4/codeset.m4 b/gl/m4/codeset.m4 new file mode 100644 index 0000000..5804f47 --- /dev/null +++ b/gl/m4/codeset.m4 @@ -0,0 +1,24 @@ +# codeset.m4 serial 5 (gettext-0.18.2) +dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016, 2019-2023 Free Software +dnl Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([AM_LANGINFO_CODESET], +[ + AC_CACHE_CHECK([for nl_langinfo and CODESET], [am_cv_langinfo_codeset], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <langinfo.h>]], + [[char* cs = nl_langinfo(CODESET); return !cs;]])], + [am_cv_langinfo_codeset=yes], + [am_cv_langinfo_codeset=no]) + ]) + if test $am_cv_langinfo_codeset = yes; then + AC_DEFINE([HAVE_LANGINFO_CODESET], [1], + [Define if you have <langinfo.h> and nl_langinfo(CODESET).]) + fi +]) diff --git a/gl/m4/ctype_h.m4 b/gl/m4/ctype_h.m4 new file mode 100644 index 0000000..219f2ed --- /dev/null +++ b/gl/m4/ctype_h.m4 @@ -0,0 +1,47 @@ +# ctype_h.m4 serial 9 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_CTYPE_H], +[ + AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) + + dnl <ctype.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_NEXT_HEADERS([ctype.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <ctype.h> + ]], [isblank]) +]) + +# gl_CTYPE_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_CTYPE_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_CTYPE_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_CTYPE_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_CTYPE_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISBLANK]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_CTYPE_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) +]) + +AC_DEFUN([gl_CTYPE_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ISBLANK=1; AC_SUBST([HAVE_ISBLANK]) +]) diff --git a/gl/m4/d-ino.m4 b/gl/m4/d-ino.m4 new file mode 100644 index 0000000..58f3311 --- /dev/null +++ b/gl/m4/d-ino.m4 @@ -0,0 +1,62 @@ +# serial 21 + +dnl From Jim Meyering. +dnl +dnl Check whether struct dirent has a member named d_ino. +dnl + +# Copyright (C) 1997, 1999-2001, 2003-2004, 2006-2007, 2009-2023 Free Software +# Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO], + [AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([for d_ino member in directory struct], + [gl_cv_struct_dirent_d_ino], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + #include <sys/stat.h> + #include <dirent.h> + ]], + [[DIR *dp = opendir ("."); + struct dirent *e; + struct stat st; + if (! dp) + return 1; + e = readdir (dp); + if (! e) + { closedir (dp); return 2; } + if (lstat (e->d_name, &st) != 0) + { closedir (dp); return 3; } + if (e->d_ino != st.st_ino) + { closedir (dp); return 4; } + closedir (dp); + return 0; + ]])], + [gl_cv_struct_dirent_d_ino=yes], + [gl_cv_struct_dirent_d_ino=no], + [case "$host_os" in + # Guess yes on glibc systems with Linux kernel. + linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;; + # Guess yes on musl systems with Linux kernel. + linux*-musl*) gl_cv_struct_dirent_d_ino="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_struct_dirent_d_ino="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_struct_dirent_d_ino="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_struct_dirent_d_ino="$gl_cross_guess_normal" ;; + esac + ])]) + case "$gl_cv_struct_dirent_d_ino" in + *yes) + AC_DEFINE([D_INO_IN_DIRENT], [1], + [Define if struct dirent has a member d_ino that actually works.]) + ;; + esac + ] +) diff --git a/gl/m4/d-type.m4 b/gl/m4/d-type.m4 new file mode 100644 index 0000000..3f63bbe --- /dev/null +++ b/gl/m4/d-type.m4 @@ -0,0 +1,32 @@ +# serial 12 + +dnl From Jim Meyering. +dnl +dnl Check whether struct dirent has a member named d_type. +dnl + +# Copyright (C) 1997, 1999-2004, 2006, 2009-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE], + [AC_CACHE_CHECK([for d_type member in directory struct], + [gl_cv_struct_dirent_d_type], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <dirent.h> + ]], + [[struct dirent dp; dp.d_type = 0;]])], + [gl_cv_struct_dirent_d_type=yes], + [gl_cv_struct_dirent_d_type=no]) + ] + ) + if test $gl_cv_struct_dirent_d_type = yes; then + AC_DEFINE([HAVE_STRUCT_DIRENT_D_TYPE], [1], + [Define if there is a member named d_type in the struct describing + directory headers.]) + fi + ] +) diff --git a/gl/m4/dirent_h.m4 b/gl/m4/dirent_h.m4 new file mode 100644 index 0000000..b6c189c --- /dev/null +++ b/gl/m4/dirent_h.m4 @@ -0,0 +1,98 @@ +# dirent_h.m4 serial 20 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Bruno Haible. + +AC_DEFUN_ONCE([gl_DIRENT_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + + dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([dirent.h]) + if test $ac_cv_header_dirent_h = yes; then + HAVE_DIRENT_H=1 + else + HAVE_DIRENT_H=0 + fi + AC_SUBST([HAVE_DIRENT_H]) + + gl_DIRENT_DIR + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <dirent.h> + ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir]) +]) + +dnl Determine whether <dirent.h> needs to override the DIR type. +AC_DEFUN_ONCE([gl_DIRENT_DIR], +[ + dnl Set DIR_HAS_FD_MEMBER if dirfd() works, i.e. not always returns -1, + dnl or has the __KLIBC__ workaround as in lib/dirfd.c. + dnl We could use the findings from gl_FUNC_DIRFD and gl_PREREQ_DIRFD, but + dnl it's simpler since we know the affected platforms. + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) DIR_HAS_FD_MEMBER=0 ;; + *) DIR_HAS_FD_MEMBER=1 ;; + esac + AC_SUBST([DIR_HAS_FD_MEMBER]) +]) + +# gl_DIRENT_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_DIRENT_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_DIRENT_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_DIRENT_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_DIRENT_H_MODULE_INDICATOR_DEFAULTS], [ + gl_UNISTD_H_REQUIRE_DEFAULTS dnl for REPLACE_FCHDIR + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OPENDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REWINDDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CLOSEDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DIRFD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDOPENDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SCANDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ALPHASORT]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_DIRENT_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) +]) + +AC_DEFUN([gl_DIRENT_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_OPENDIR=1; AC_SUBST([HAVE_OPENDIR]) + HAVE_READDIR=1; AC_SUBST([HAVE_READDIR]) + HAVE_REWINDDIR=1; AC_SUBST([HAVE_REWINDDIR]) + HAVE_CLOSEDIR=1; AC_SUBST([HAVE_CLOSEDIR]) + HAVE_DECL_DIRFD=1; AC_SUBST([HAVE_DECL_DIRFD]) + HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR]) + HAVE_FDOPENDIR=1; AC_SUBST([HAVE_FDOPENDIR]) + HAVE_SCANDIR=1; AC_SUBST([HAVE_SCANDIR]) + HAVE_ALPHASORT=1; AC_SUBST([HAVE_ALPHASORT]) + REPLACE_OPENDIR=0; AC_SUBST([REPLACE_OPENDIR]) + REPLACE_READDIR=0; AC_SUBST([REPLACE_READDIR]) + REPLACE_REWINDDIR=0; AC_SUBST([REPLACE_REWINDDIR]) + REPLACE_CLOSEDIR=0; AC_SUBST([REPLACE_CLOSEDIR]) + REPLACE_DIRFD=0; AC_SUBST([REPLACE_DIRFD]) + REPLACE_FDOPENDIR=0; AC_SUBST([REPLACE_FDOPENDIR]) +]) diff --git a/gl/m4/dirfd.m4 b/gl/m4/dirfd.m4 new file mode 100644 index 0000000..7968b12 --- /dev/null +++ b/gl/m4/dirfd.m4 @@ -0,0 +1,91 @@ +# serial 28 -*- Autoconf -*- + +dnl Find out how to get the file descriptor associated with an open DIR*. + +# Copyright (C) 2001-2006, 2008-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering + +AC_DEFUN([gl_FUNC_DIRFD], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + dnl Persuade glibc <dirent.h> to declare dirfd(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_FUNCS([dirfd]) + AC_CHECK_DECLS([dirfd], , , + [[#include <sys/types.h> + #include <dirent.h>]]) + if test $ac_cv_have_decl_dirfd = no; then + HAVE_DECL_DIRFD=0 + fi + + AC_CACHE_CHECK([whether dirfd is a macro], + [gl_cv_func_dirfd_macro], + [AC_EGREP_CPP([dirent_header_defines_dirfd], [ +#include <sys/types.h> +#include <dirent.h> +#ifdef dirfd + dirent_header_defines_dirfd +#endif], + [gl_cv_func_dirfd_macro=yes], + [gl_cv_func_dirfd_macro=no])]) + + if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no; then + HAVE_DIRFD=0 + else + HAVE_DIRFD=1 + dnl Replace dirfd() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_DIRFD=1 + fi + dnl OS/2 kLIBC dirfd() does not work. + case "$host_os" in + os2*) REPLACE_DIRFD=1 ;; + esac + fi +]) + +dnl Prerequisites of lib/dirfd.c. +AC_DEFUN([gl_PREREQ_DIRFD], +[ + AC_CACHE_CHECK([how to get the file descriptor associated with an open DIR*], + [gl_cv_sys_dir_fd_member_name], + [ + dirfd_save_CFLAGS=$CFLAGS + for ac_expr in d_fd dd_fd; do + + CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #include <sys/types.h> + #include <dirent.h>]], + [[DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;]])], + [dir_fd_found=yes] + ) + CFLAGS=$dirfd_save_CFLAGS + test "$dir_fd_found" = yes && break + done + test "$dir_fd_found" = yes || ac_expr=no_such_member + + gl_cv_sys_dir_fd_member_name=$ac_expr + ] + ) + if test $gl_cv_sys_dir_fd_member_name != no_such_member; then + AC_DEFINE_UNQUOTED([DIR_FD_MEMBER_NAME], + [$gl_cv_sys_dir_fd_member_name], + [the name of the file descriptor member of DIR]) + fi + AH_VERBATIM([DIR_TO_FD], + [#ifdef DIR_FD_MEMBER_NAME +# define DIR_TO_FD(Dir_p) ((Dir_p)->DIR_FD_MEMBER_NAME) +#else +# define DIR_TO_FD(Dir_p) -1 +#endif +]) +]) diff --git a/gl/m4/double-slash-root.m4 b/gl/m4/double-slash-root.m4 new file mode 100644 index 0000000..1776e5e --- /dev/null +++ b/gl/m4/double-slash-root.m4 @@ -0,0 +1,38 @@ +# double-slash-root.m4 serial 4 -*- Autoconf -*- +dnl Copyright (C) 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_DOUBLE_SLASH_ROOT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether // is distinct from /], [gl_cv_double_slash_root], + [ if test x"$cross_compiling" = xyes ; then + # When cross-compiling, there is no way to tell whether // is special + # short of a list of hosts. However, the only known hosts to date + # that have a distinct // are Apollo DomainOS (too old to port to), + # Cygwin, and z/OS. If anyone knows of another system for which // has + # special semantics and is distinct from /, please report it to + # <bug-gnulib@gnu.org>. + case $host in + *-cygwin | i370-ibm-openedition) + gl_cv_double_slash_root=yes ;; + *) + # Be optimistic and assume that / and // are the same when we + # don't know. + gl_cv_double_slash_root='unknown, assuming no' ;; + esac + else + set x `ls -di / // 2>/dev/null` + if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then + gl_cv_double_slash_root=no + else + gl_cv_double_slash_root=yes + fi + fi]) + if test "$gl_cv_double_slash_root" = yes; then + AC_DEFINE([DOUBLE_SLASH_IS_DISTINCT_ROOT], [1], + [Define to 1 if // is a file system root distinct from /.]) + fi +]) diff --git a/gl/m4/dup.m4 b/gl/m4/dup.m4 new file mode 100644 index 0000000..fc41c99 --- /dev/null +++ b/gl/m4/dup.m4 @@ -0,0 +1,54 @@ +# dup.m4 serial 7 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_DUP], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + m4_ifdef([gl_MSVC_INVAL], [ + AC_REQUIRE([gl_MSVC_INVAL]) + if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then + REPLACE_DUP=1 + fi + ]) + dnl Replace dup() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_DUP=1 + fi + ]) + AC_CACHE_CHECK([whether dup works], [gl_cv_func_dup_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[#include <unistd.h> + #include <fcntl.h> + #include <errno.h> + ]GL_MDA_DEFINES], + [[/* On OS/2 kLIBC, dup does not work on a directory fd. */ + int fd = open (".", O_RDONLY); + return fd < 0 ? 1 : dup (fd) < 0 ? 2 : 0; + ]]) + ], + [gl_cv_func_dup_works=yes], + [gl_cv_func_dup_works=no], + [case "$host_os" in + # Guess no on native Windows. + mingw*) gl_cv_func_dup_works="guessing no" ;; + *) gl_cv_func_dup_works="guessing yes" ;; + esac + ]) + ]) + case "$gl_cv_func_dup_works" in + *yes) ;; + *) + REPLACE_DUP=1 + ;; + esac +]) + +# Prerequisites of lib/dup.c. +AC_DEFUN([gl_PREREQ_DUP], [:]) diff --git a/gl/m4/dup2.m4 b/gl/m4/dup2.m4 new file mode 100644 index 0000000..e1cc73e --- /dev/null +++ b/gl/m4/dup2.m4 @@ -0,0 +1,105 @@ +#serial 27 +dnl Copyright (C) 2002, 2005, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_DUP2], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether dup2 works], [gl_cv_func_dup2_works], + [AC_RUN_IFELSE([ + AC_LANG_PROGRAM( + [[#include <errno.h> + #include <fcntl.h> + #include <limits.h> + #include <sys/resource.h> + #include <unistd.h> + ]GL_MDA_DEFINES[ + #ifndef RLIM_SAVED_CUR + # define RLIM_SAVED_CUR RLIM_INFINITY + #endif + #ifndef RLIM_SAVED_MAX + # define RLIM_SAVED_MAX RLIM_INFINITY + #endif + ]], + [[int result = 0; + int bad_fd = INT_MAX; + struct rlimit rlim; + if (getrlimit (RLIMIT_NOFILE, &rlim) == 0 + && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX + && rlim.rlim_cur != RLIM_INFINITY + && rlim.rlim_cur != RLIM_SAVED_MAX + && rlim.rlim_cur != RLIM_SAVED_CUR) + bad_fd = rlim.rlim_cur; + #ifdef FD_CLOEXEC + if (fcntl (1, F_SETFD, FD_CLOEXEC) == -1) + result |= 1; + #endif + if (dup2 (1, 1) != 1) + result |= 2; + #ifdef FD_CLOEXEC + if (fcntl (1, F_GETFD) != FD_CLOEXEC) + result |= 4; + #endif + close (0); + if (dup2 (0, 0) != -1) + result |= 8; + /* Many gnulib modules require POSIX conformance of EBADF. */ + if (dup2 (2, bad_fd) == -1 && errno != EBADF) + result |= 16; + /* Flush out some cygwin core dumps. */ + if (dup2 (2, -1) != -1 || errno != EBADF) + result |= 32; + dup2 (2, 255); + dup2 (2, 256); + /* On OS/2 kLIBC, dup2() does not work on a directory fd. */ + { + int fd = open (".", O_RDONLY); + if (fd == -1) + result |= 64; + else if (dup2 (fd, fd + 1) == -1) + result |= 128; + close (fd); + } + return result;]]) + ], + [gl_cv_func_dup2_works=yes], [gl_cv_func_dup2_works=no], + [case "$host_os" in + mingw*) # on this platform, dup2 always returns 0 for success + gl_cv_func_dup2_works="guessing no" ;; + cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0 + gl_cv_func_dup2_works="guessing no" ;; + aix* | freebsd*) + # on AIX 7.1 and FreeBSD 6.1, dup2 (1,toobig) gives EMFILE, + # not EBADF. + gl_cv_func_dup2_works="guessing no" ;; + haiku*) # on Haiku alpha 2, dup2(1, 1) resets FD_CLOEXEC. + gl_cv_func_dup2_works="guessing no" ;; + *-android*) # implemented using dup3(), which fails if oldfd == newfd + gl_cv_func_dup2_works="guessing no" ;; + os2*) # on OS/2 kLIBC, dup2() does not work on a directory fd. + gl_cv_func_dup2_works="guessing no" ;; + *) gl_cv_func_dup2_works="guessing yes" ;; + esac]) + ]) + case "$gl_cv_func_dup2_works" in + *yes) ;; + *) + REPLACE_DUP2=1 + AC_CHECK_FUNCS([setdtablesize]) + ;; + esac + dnl Replace dup2() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_DUP2=1 + fi + ]) +]) + +# Prerequisites of lib/dup2.c. +AC_DEFUN([gl_PREREQ_DUP2], []) diff --git a/gl/m4/eealloc.m4 b/gl/m4/eealloc.m4 new file mode 100644 index 0000000..cb3e08f --- /dev/null +++ b/gl/m4/eealloc.m4 @@ -0,0 +1,31 @@ +# eealloc.m4 serial 3 +dnl Copyright (C) 2003, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_EEALLOC], +[ + AC_REQUIRE([gl_EEMALLOC]) + AC_REQUIRE([gl_EEREALLOC]) +]) + +AC_DEFUN([gl_EEMALLOC], +[ + _AC_FUNC_MALLOC_IF( + [gl_cv_func_malloc_0_nonnull=1], + [gl_cv_func_malloc_0_nonnull=0]) + AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$gl_cv_func_malloc_0_nonnull], + [If malloc(0) is != NULL, define this to 1. Otherwise define this + to 0.]) +]) + +AC_DEFUN([gl_EEREALLOC], +[ + _AC_FUNC_REALLOC_IF( + [gl_cv_func_realloc_0_nonnull=1], + [gl_cv_func_realloc_0_nonnull=0]) + AC_DEFINE_UNQUOTED([REALLOC_0_IS_NONNULL], [$gl_cv_func_realloc_0_nonnull], + [If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this + to 0.]) +]) diff --git a/gl/m4/environ.m4 b/gl/m4/environ.m4 new file mode 100644 index 0000000..741dfc5 --- /dev/null +++ b/gl/m4/environ.m4 @@ -0,0 +1,46 @@ +# environ.m4 serial 8 +dnl Copyright (C) 2001-2004, 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_ENVIRON], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + dnl Persuade glibc <unistd.h> to declare environ. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_HEADERS_ONCE([unistd.h]) + gt_CHECK_VAR_DECL( + [#if HAVE_UNISTD_H + #include <unistd.h> + #endif + /* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>. */ + #include <stdlib.h> + ], + [environ]) + if test $gt_cv_var_environ_declaration != yes; then + HAVE_DECL_ENVIRON=0 + fi +]) + +# Check if a variable is properly declared. +# gt_CHECK_VAR_DECL(includes,variable) +AC_DEFUN([gt_CHECK_VAR_DECL], +[ + define([gt_cv_var], [gt_cv_var_]$2[_declaration]) + AC_CACHE_CHECK([if $2 is properly declared], [gt_cv_var], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[$1 + typedef struct { int foo; } foo_t; + extern foo_t $2;]], + [[$2.foo = 1;]])], + [gt_cv_var=no], + [gt_cv_var=yes])]) + if test $gt_cv_var = yes; then + AC_DEFINE([HAVE_]m4_translit($2, [a-z], [A-Z])[_DECL], 1, + [Define if you have the declaration of $2.]) + fi + undefine([gt_cv_var]) +]) diff --git a/gl/m4/errno_h.m4 b/gl/m4/errno_h.m4 new file mode 100644 index 0000000..4c70d22 --- /dev/null +++ b/gl/m4/errno_h.m4 @@ -0,0 +1,131 @@ +# errno_h.m4 serial 14 +dnl Copyright (C) 2004, 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.61]) + +AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ + AC_EGREP_CPP([booboo],[ +#include <errno.h> +#if !defined ETXTBSY +booboo +#endif +#if !defined ENOMSG +booboo +#endif +#if !defined EIDRM +booboo +#endif +#if !defined ENOLINK +booboo +#endif +#if !defined EPROTO +booboo +#endif +#if !defined EMULTIHOP +booboo +#endif +#if !defined EBADMSG +booboo +#endif +#if !defined EOVERFLOW +booboo +#endif +#if !defined ENOTSUP +booboo +#endif +#if !defined ENETRESET +booboo +#endif +#if !defined ECONNABORTED +booboo +#endif +#if !defined ESTALE +booboo +#endif +#if !defined EDQUOT +booboo +#endif +#if !defined ECANCELED +booboo +#endif +#if !defined EOWNERDEAD +booboo +#endif +#if !defined ENOTRECOVERABLE +booboo +#endif +#if !defined EILSEQ +booboo +#endif + ], + [gl_cv_header_errno_h_complete=no], + [gl_cv_header_errno_h_complete=yes]) + ]) + if test $gl_cv_header_errno_h_complete = yes; then + GL_GENERATE_ERRNO_H=false + else + gl_NEXT_HEADERS([errno.h]) + GL_GENERATE_ERRNO_H=true + fi + gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) + gl_REPLACE_ERRNO_VALUE([ENOLINK]) + gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) +]) + +# Assuming $1 = EOVERFLOW. +# The EOVERFLOW errno value ought to be defined in <errno.h>, according to +# POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and +# some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. +# Check for the value of EOVERFLOW. +# Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. +AC_DEFUN([gl_REPLACE_ERRNO_VALUE], +[ + if $GL_GENERATE_ERRNO_H; then + AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ + AC_EGREP_CPP([yes],[ +#include <errno.h> +#ifdef ]$1[ +yes +#endif + ], + [gl_cv_header_errno_h_]$1[=yes], + [gl_cv_header_errno_h_]$1[=no]) + if test $gl_cv_header_errno_h_]$1[ = no; then + AC_EGREP_CPP([yes],[ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +#ifdef ]$1[ +yes +#endif + ], [gl_cv_header_errno_h_]$1[=hidden]) + if test $gl_cv_header_errno_h_]$1[ = hidden; then + dnl The macro exists but is hidden. + dnl Define it to the same value. + AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +/* The following two lines are a workaround against an autoconf-2.52 bug. */ +#include <stdio.h> +#include <stdlib.h> +]) + fi + fi + ]) + case $gl_cv_header_errno_h_]$1[ in + yes | no) + ]$1[_HIDDEN=0; ]$1[_VALUE= + ;; + *) + ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" + ;; + esac + AC_SUBST($1[_HIDDEN]) + AC_SUBST($1[_VALUE]) + fi +]) diff --git a/gl/m4/error.m4 b/gl/m4/error.m4 new file mode 100644 index 0000000..93a7558 --- /dev/null +++ b/gl/m4/error.m4 @@ -0,0 +1,22 @@ +#serial 16 + +# Copyright (C) 1996-1998, 2001-2004, 2009-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_ERROR], +[ +]) + +# Prerequisites of lib/error.c. +AC_DEFUN([gl_PREREQ_ERROR], +[ + dnl Use system extensions on Android, so that AC_FUNC_STRERROR_R + dnl discovers the GNU API for strerror_r on Android API level 23 and later. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([AC_FUNC_STRERROR_R]) + : +]) diff --git a/gl/m4/error_h.m4 b/gl/m4/error_h.m4 new file mode 100644 index 0000000..e8a58f6 --- /dev/null +++ b/gl/m4/error_h.m4 @@ -0,0 +1,124 @@ +# error_h.m4 serial 4 +dnl Copyright (C) 1996-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Provide a working "error.h". + +AC_DEFUN_ONCE([gl_ERROR_H], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + gl_CHECK_NEXT_HEADERS([error.h]) + if test $ac_cv_header_error_h = yes; then + HAVE_ERROR_H=1 + else + HAVE_ERROR_H=0 + fi + AC_SUBST([HAVE_ERROR_H]) + + REPLACE_ERROR=0 + + gl_CHECK_FUNCS_ANDROID([error], [[#include <error.h>]]) + if test $ac_cv_func_error = yes; then + HAVE_ERROR=1 + else + HAVE_ERROR=0 + case "$gl_cv_onwards_func_error" in + future*) REPLACE_ERROR=1 ;; + esac + fi + + dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer + dnl maintained in Autoconf and because it invokes AC_LIBOBJ. + dnl We need to notice a missing declaration, like gl_CHECK_FUNCS_ANDROID does. + AC_CHECK_DECL([error_at_line], , , [[#include <error.h>]]) + if test $ac_cv_have_decl_error_at_line = yes; then + AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <error.h>]], + [[error_at_line (0, 0, "", 0, "an error occurred");]])], + [ac_cv_lib_error_at_line=yes], + [ac_cv_lib_error_at_line=no])]) + else + ac_cv_lib_error_at_line=no + fi + if test $ac_cv_lib_error_at_line = yes; then + HAVE_ERROR_AT_LINE=1 + else + HAVE_ERROR_AT_LINE=0 + fi + REPLACE_ERROR_AT_LINE=0 + + if test $ac_cv_func_error = yes && test $ac_cv_lib_error_at_line = yes; then + dnl On Android 11, when error_print_progname is set, the output of the + dnl error() function contains an extra space. + AC_CACHE_CHECK([for working error function], + [gl_cv_func_working_error], + [if test $cross_compiling != yes; then + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ + #include <error.h> + static void print_no_progname (void) {} + ]], [[ + error_print_progname = print_no_progname; + error (0, 0, "foo"); + ]]) + ], + [rm -f conftest.out + if test -s conftest$ac_exeext \ + && ./conftest$ac_exeext 2> conftest.out; then + if grep ' ' conftest.out >/dev/null; then + gl_cv_func_working_error=no + else + gl_cv_func_working_error=yes + fi + else + gl_cv_func_working_error=no + fi + rm -f conftest.out + ], + [gl_cv_func_working_error=no]) + else + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #include <error.h> + ]], [[ + error (0, 0, "foo"); + ]]) + ], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_working_error="guessing yes" ;; + # Guess no on Android. + linux*-android*) gl_cv_func_working_error="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_working_error="$gl_cross_guess_normal" ;; + esac + ], + [gl_cv_func_working_error=no]) + fi + ]) + case "$gl_cv_func_working_error" in + *no) + REPLACE_ERROR=1 + REPLACE_ERROR_AT_LINE=1 + ;; + esac + fi + + if test $HAVE_ERROR = 0 || test $REPLACE_ERROR = 1 \ + || test $HAVE_ERROR_AT_LINE = 0 || test $REPLACE_ERROR_AT_LINE = 1; then + COMPILE_ERROR_C=1 + else + COMPILE_ERROR_C=0 + fi + + AC_SUBST([HAVE_ERROR]) + AC_SUBST([HAVE_ERROR_AT_LINE]) + AC_SUBST([REPLACE_ERROR]) + AC_SUBST([REPLACE_ERROR_AT_LINE]) +]) diff --git a/gl/m4/exponentd.m4 b/gl/m4/exponentd.m4 new file mode 100644 index 0000000..163114b --- /dev/null +++ b/gl/m4/exponentd.m4 @@ -0,0 +1,116 @@ +# exponentd.m4 serial 4 +dnl Copyright (C) 2007-2008, 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +AC_DEFUN_ONCE([gl_DOUBLE_EXPONENT_LOCATION], +[ + AC_CACHE_CHECK([where to find the exponent in a 'double'], + [gl_cv_cc_double_expbit0], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <float.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#define NWORDS \ + ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) +typedef union { double value; unsigned int word[NWORDS]; } memory_double; +static unsigned int ored_words[NWORDS]; +static unsigned int anded_words[NWORDS]; +static void add_to_ored_words (double x) +{ + memory_double m; + size_t i; + /* Clear it first, in case sizeof (double) < sizeof (memory_double). */ + memset (&m, 0, sizeof (memory_double)); + m.value = x; + for (i = 0; i < NWORDS; i++) + { + ored_words[i] |= m.word[i]; + anded_words[i] &= m.word[i]; + } +} +int main () +{ + size_t j; + FILE *fp = fopen ("conftest.out", "w"); + if (fp == NULL) + return 1; + for (j = 0; j < NWORDS; j++) + anded_words[j] = ~ (unsigned int) 0; + add_to_ored_words (0.25); + add_to_ored_words (0.5); + add_to_ored_words (1.0); + add_to_ored_words (2.0); + add_to_ored_words (4.0); + /* Remove bits that are common (e.g. if representation of the first mantissa + bit is explicit). */ + for (j = 0; j < NWORDS; j++) + ored_words[j] &= ~anded_words[j]; + /* Now find the nonzero word. */ + for (j = 0; j < NWORDS; j++) + if (ored_words[j] != 0) + break; + if (j < NWORDS) + { + size_t i; + for (i = j + 1; i < NWORDS; i++) + if (ored_words[i] != 0) + { + fprintf (fp, "unknown"); + return (fclose (fp) != 0); + } + for (i = 0; ; i++) + if ((ored_words[j] >> i) & 1) + { + fprintf (fp, "word %d bit %d", (int) j, (int) i); + return (fclose (fp) != 0); + } + } + fprintf (fp, "unknown"); + return (fclose (fp) != 0); +} + ]])], + [gl_cv_cc_double_expbit0=`cat conftest.out`], + [gl_cv_cc_double_expbit0="unknown"], + [ + dnl On ARM, there are two 'double' floating-point formats, used by + dnl different sets of instructions: The older FPA instructions assume + dnl that they are stored in big-endian word order, while the words + dnl (like integer types) are stored in little-endian byte order. + dnl The newer VFP instructions assume little-endian order + dnl consistently. + AC_EGREP_CPP([mixed_endianness], [ +#if defined arm || defined __arm || defined __arm__ + mixed_endianness +#endif + ], + [gl_cv_cc_double_expbit0="unknown"], + [ + pushdef([AC_MSG_CHECKING],[:])dnl + pushdef([AC_MSG_RESULT],[:])dnl + pushdef([AC_MSG_RESULT_UNQUOTED],[:])dnl + AC_C_BIGENDIAN( + [gl_cv_cc_double_expbit0="word 0 bit 20"], + [gl_cv_cc_double_expbit0="word 1 bit 20"], + [gl_cv_cc_double_expbit0="unknown"]) + popdef([AC_MSG_RESULT_UNQUOTED])dnl + popdef([AC_MSG_RESULT])dnl + popdef([AC_MSG_CHECKING])dnl + ]) + ]) + rm -f conftest.out + ]) + case "$gl_cv_cc_double_expbit0" in + word*bit*) + word=`echo "$gl_cv_cc_double_expbit0" | sed -e 's/word //' -e 's/ bit.*//'` + bit=`echo "$gl_cv_cc_double_expbit0" | sed -e 's/word.*bit //'` + AC_DEFINE_UNQUOTED([DBL_EXPBIT0_WORD], [$word], + [Define as the word index where to find the exponent of 'double'.]) + AC_DEFINE_UNQUOTED([DBL_EXPBIT0_BIT], [$bit], + [Define as the bit index in the word where to find bit 0 of the exponent of 'double'.]) + ;; + esac +]) diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4 new file mode 100644 index 0000000..5336b8d --- /dev/null +++ b/gl/m4/extensions.m4 @@ -0,0 +1,232 @@ +# serial 23 -*- Autoconf -*- +# Enable extensions on systems that normally disable them. + +# Copyright (C) 2003, 2006-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl Define to empty for the benefit of Autoconf 2.69 and earlier, so that +dnl AC_USE_SYSTEM_EXTENSIONS (below) can be used unchanged from Autoconf 2.70+. +m4_ifndef([AC_CHECK_INCLUDES_DEFAULT], + [AC_DEFUN([AC_CHECK_INCLUDES_DEFAULT], [])]) + +# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from git +# Autoconf. Perhaps we can remove this once we can assume Autoconf +# is recent-enough everywhere, but since Autoconf mutates rapidly +# enough in this area it's likely we'll need to redefine +# AC_USE_SYSTEM_EXTENSIONS for quite some time. + +# If autoconf reports a warning +# warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS +# or warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS +# the fix is +# 1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked +# but always AC_REQUIREd, +# 2) to ensure that for each occurrence of +# AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) +# or +# AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) +# the corresponding gnulib module description has 'extensions' among +# its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS +# invocation occurs in gl_EARLY, not in gl_INIT. + +m4_version_prereq([2.72], [], [ + +# AC_USE_SYSTEM_EXTENSIONS +# ------------------------ +# Enable extensions on systems that normally disable them, +# typically due to standards-conformance issues. +# We unconditionally define as many of the known feature-enabling +# as possible, reserving conditional behavior for macros that are +# known to cause problems on some platforms (such as __EXTENSIONS__). +AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS], +[AC_BEFORE([$0], [AC_PREPROC_IFELSE])dnl +AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_LINK_IFELSE])dnl +AC_BEFORE([$0], [AC_RUN_IFELSE])dnl +AC_BEFORE([$0], [AC_CHECK_INCLUDES_DEFAULT])dnl +dnl #undef in AH_VERBATIM gets replaced with #define by AC_DEFINE. +dnl Use a different key than __EXTENSIONS__, as that name broke existing +dnl configure.ac when using autoheader 2.62. +dnl The macros below are in alphabetical order ignoring leading _ or __ +dnl prefixes. +AH_VERBATIM([USE_SYSTEM_EXTENSIONS], +[/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable general extensions on macOS. */ +#ifndef _DARWIN_C_SOURCE +# undef _DARWIN_C_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable X/Open compliant socket functions that do not require linking + with -lxnet on HP-UX 11.11. */ +#ifndef _HPUX_ALT_XOPEN_SOCKET_API +# undef _HPUX_ALT_XOPEN_SOCKET_API +#endif +/* Identify the host operating system as Minix. + This macro does not affect the system headers' behavior. + A future release of Autoconf may stop defining this macro. */ +#ifndef _MINIX +# undef _MINIX +#endif +/* Enable general extensions on NetBSD. + Enable NetBSD compatibility extensions on Minix. */ +#ifndef _NETBSD_SOURCE +# undef _NETBSD_SOURCE +#endif +/* Enable OpenBSD compatibility extensions on NetBSD. + Oddly enough, this does nothing on OpenBSD. */ +#ifndef _OPENBSD_SOURCE +# undef _OPENBSD_SOURCE +#endif +/* Define to 1 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_SOURCE +# undef _POSIX_SOURCE +#endif +/* Define to 2 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_1_SOURCE +# undef _POSIX_1_SOURCE +#endif +/* Enable POSIX-compatible threading on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions specified by ISO/IEC TS 18661-5:2014. */ +#ifndef __STDC_WANT_IEC_60559_ATTRIBS_EXT__ +# undef __STDC_WANT_IEC_60559_ATTRIBS_EXT__ +#endif +/* Enable extensions specified by ISO/IEC TS 18661-1:2014. */ +#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ +# undef __STDC_WANT_IEC_60559_BFP_EXT__ +#endif +/* Enable extensions specified by ISO/IEC TS 18661-2:2015. */ +#ifndef __STDC_WANT_IEC_60559_DFP_EXT__ +# undef __STDC_WANT_IEC_60559_DFP_EXT__ +#endif +/* Enable extensions specified by C23 Annex F. */ +#ifndef __STDC_WANT_IEC_60559_EXT__ +# undef __STDC_WANT_IEC_60559_EXT__ +#endif +/* Enable extensions specified by ISO/IEC TS 18661-4:2015. */ +#ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__ +# undef __STDC_WANT_IEC_60559_FUNCS_EXT__ +#endif +/* Enable extensions specified by C23 Annex H and ISO/IEC TS 18661-3:2015. */ +#ifndef __STDC_WANT_IEC_60559_TYPES_EXT__ +# undef __STDC_WANT_IEC_60559_TYPES_EXT__ +#endif +/* Enable extensions specified by ISO/IEC TR 24731-2:2010. */ +#ifndef __STDC_WANT_LIB_EXT2__ +# undef __STDC_WANT_LIB_EXT2__ +#endif +/* Enable extensions specified by ISO/IEC 24747:2009. */ +#ifndef __STDC_WANT_MATH_SPEC_FUNCS__ +# undef __STDC_WANT_MATH_SPEC_FUNCS__ +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable X/Open extensions. Define to 500 only if necessary + to make mbstate_t available. */ +#ifndef _XOPEN_SOURCE +# undef _XOPEN_SOURCE +#endif +])dnl + + AC_REQUIRE([AC_CHECK_INCLUDES_DEFAULT])dnl + _AC_CHECK_HEADER_ONCE([wchar.h]) + _AC_CHECK_HEADER_ONCE([minix/config.h]) + +dnl Defining __EXTENSIONS__ may break the system headers on some systems. +dnl (FIXME: Which ones?) + AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], + [ac_cv_safe_to_define___extensions__], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +# define __EXTENSIONS__ 1 + ]AC_INCLUDES_DEFAULT])], + [ac_cv_safe_to_define___extensions__=yes], + [ac_cv_safe_to_define___extensions__=no])]) + +dnl HP-UX 11.11 defines mbstate_t only if _XOPEN_SOURCE is defined to +dnl 500, regardless of whether compiling with -Ae or -D_HPUX_SOURCE=1. +dnl But defining _XOPEN_SOURCE may turn *off* extensions on platforms +dnl not covered by turn-on-extensions macros (notably Dragonfly, Free, +dnl and OpenBSD, which don't have any equivalent of _NETBSD_SOURCE) so +dnl it should only be defined when necessary. + AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined], + [ac_cv_should_define__xopen_source], + [ac_cv_should_define__xopen_source=no + AS_IF([test $ac_cv_header_wchar_h = yes], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #include <wchar.h> + mbstate_t x;]])], + [], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #define _XOPEN_SOURCE 500 + #include <wchar.h> + mbstate_t x;]])], + [ac_cv_should_define__xopen_source=yes])])])]) + + AC_DEFINE([_ALL_SOURCE]) + AC_DEFINE([_DARWIN_C_SOURCE]) + AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API]) + AC_DEFINE([_NETBSD_SOURCE]) + AC_DEFINE([_OPENBSD_SOURCE]) + AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__]) + AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__]) + AC_DEFINE([__STDC_WANT_LIB_EXT2__]) + AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__]) + AC_DEFINE([_TANDEM_SOURCE]) + AS_IF([test $ac_cv_header_minix_config_h = yes], + [MINIX=yes + AC_DEFINE([_MINIX]) + AC_DEFINE([_POSIX_SOURCE]) + AC_DEFINE([_POSIX_1_SOURCE], [2])], + [MINIX=]) + AS_IF([test $ac_cv_safe_to_define___extensions__ = yes], + [AC_DEFINE([__EXTENSIONS__])]) + AS_IF([test $ac_cv_should_define__xopen_source = yes], + [AC_DEFINE([_XOPEN_SOURCE], [500])]) +])# AC_USE_SYSTEM_EXTENSIONS +]) + +# gl_USE_SYSTEM_EXTENSIONS +# ------------------------ +# Enable extensions on systems that normally disable them, +# typically due to standards-conformance issues. +AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS], +[ + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl On OpenBSD 6.8 with GCC, the include files contain a couple of + dnl definitions that are only activated with an explicit -D_ISOC11_SOURCE. + dnl That's because this version of GCC (4.2.1) supports the option + dnl '-std=gnu99' but not the option '-std=gnu11'. + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + openbsd*) + AC_DEFINE([_ISOC11_SOURCE], [1], + [Define to enable the declarations of ISO C 11 types and functions.]) + ;; + esac +]) diff --git a/gl/m4/extern-inline.m4 b/gl/m4/extern-inline.m4 new file mode 100644 index 0000000..f9894d7 --- /dev/null +++ b/gl/m4/extern-inline.m4 @@ -0,0 +1,132 @@ +dnl 'extern inline' a la ISO C99. + +dnl Copyright 2012-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_EXTERN_INLINE], +[ + AC_CACHE_CHECK([whether ctype.h defines __header_inline], + [gl_cv_have___header_inline], + [AC_PREPROC_IFELSE( + [AC_LANG_SOURCE([[#include <ctype.h> + #ifndef __header_inline + #error "<ctype.h> does not define __header_inline" + #endif + ]])], + [gl_cv_have___header_inline=yes], + [gl_cv_have___header_inline=no])]) + if test "$gl_cv_have___header_inline" = yes; then + AC_DEFINE([HAVE___HEADER_INLINE], [1], + [Define to 1 if ctype.h defines __header_inline.]) + fi + + AH_VERBATIM([HAVE___HEADER_INLINE_1], +[/* Please see the Gnulib manual for how to use these macros. + + Suppress extern inline with HP-UX cc, as it appears to be broken; see + <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>. + + Suppress extern inline with Sun C in standards-conformance mode, as it + mishandles inline functions that call each other. E.g., for 'inline void f + (void) { } inline void g (void) { f (); }', c99 incorrectly complains + 'reference to static identifier "f" in extern inline function'. + This bug was observed with Oracle Developer Studio 12.6 + (Sun C 5.15 SunOS_sparc 2017/05/30). + + Suppress extern inline (with or without __attribute__ ((__gnu_inline__))) + on configurations that mistakenly use 'static inline' to implement + functions or macros in standard C headers like <ctype.h>. For example, + if isdigit is mistakenly implemented via a static inline function, + a program containing an extern inline function that calls isdigit + may not work since the C standard prohibits extern inline functions + from calling static functions (ISO C 99 section 6.7.4.(3). + This bug is known to occur on: + + OS X 10.8 and earlier; see: + https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html + + DragonFly; see + http://muscles.dragonflybsd.org/bulk/clang-master-potential/20141111_102002/logs/ah-tty-0.3.12.log + + FreeBSD; see: + https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html + + OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and + for clang but remains for g++; see <https://trac.macports.org/ticket/41033>. + Assume DragonFly and FreeBSD will be similar. + + GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 + inline semantics, unless -fgnu89-inline is used. It defines a macro + __GNUC_STDC_INLINE__ to indicate this situation or a macro + __GNUC_GNU_INLINE__ to indicate the opposite situation. + GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline + semantics but warns, unless -fgnu89-inline is used: + warning: C99 inline functions are not supported; using GNU89 + warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute + It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. + */ +#if (((defined __APPLE__ && defined __MACH__) \ + || defined __DragonFly__ || defined __FreeBSD__) \ + && (defined HAVE___HEADER_INLINE \ + ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \ + && ! defined __clang__) \ + : ((! defined _DONT_USE_CTYPE_INLINE_ \ + && (defined __GNUC__ || defined __cplusplus)) \ + || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \ + && defined __GNUC__ && ! defined __cplusplus)))) +# define _GL_EXTERN_INLINE_STDHEADER_BUG +#endif +#if ((__GNUC__ \ + ? (defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \ + && !defined __PCC__) \ + : (199901L <= __STDC_VERSION__ \ + && !defined __HP_cc \ + && !defined __PGI \ + && !(defined __SUNPRO_C && __STDC__))) \ + && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) +# define _GL_INLINE inline +# define _GL_EXTERN_INLINE extern inline +# define _GL_EXTERN_INLINE_IN_USE +#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \ + && !defined __PCC__ \ + && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) +# if defined __GNUC_GNU_INLINE__ && __GNUC_GNU_INLINE__ + /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */ +# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) +# else +# define _GL_INLINE extern inline +# endif +# define _GL_EXTERN_INLINE extern +# define _GL_EXTERN_INLINE_IN_USE +#else +# define _GL_INLINE _GL_UNUSED static +# define _GL_EXTERN_INLINE _GL_UNUSED static +#endif + +/* In GCC 4.6 (inclusive) to 5.1 (exclusive), + suppress bogus "no previous prototype for 'FOO'" + and "no previous declaration for 'FOO'" diagnostics, + when FOO is an inline function in the header; see + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113> and + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63877>. */ +#if __GNUC__ == 4 && 6 <= __GNUC_MINOR__ +# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ +# define _GL_INLINE_HEADER_CONST_PRAGMA +# else +# define _GL_INLINE_HEADER_CONST_PRAGMA \ + _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") +# endif +# define _GL_INLINE_HEADER_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \ + _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \ + _GL_INLINE_HEADER_CONST_PRAGMA +# define _GL_INLINE_HEADER_END \ + _Pragma ("GCC diagnostic pop") +#else +# define _GL_INLINE_HEADER_BEGIN +# define _GL_INLINE_HEADER_END +#endif]) +]) diff --git a/gl/m4/fchdir.m4 b/gl/m4/fchdir.m4 new file mode 100644 index 0000000..b587e0e --- /dev/null +++ b/gl/m4/fchdir.m4 @@ -0,0 +1,68 @@ +# fchdir.m4 serial 28 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FCHDIR], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_DECLS_ONCE([fchdir]) + if test $ac_cv_have_decl_fchdir = no; then + HAVE_DECL_FCHDIR=0 + fi + + AC_REQUIRE([gl_TEST_FCHDIR]) + if test $HAVE_FCHDIR = 0; then + AC_DEFINE([REPLACE_FCHDIR], [1], + [Define to 1 if gnulib's fchdir() replacement is used.]) + dnl We must also replace anything that can manipulate a directory fd, + dnl to keep our bookkeeping up-to-date. We don't have to replace + dnl fstatat, since no platform has fstatat but lacks fchdir. + AC_CACHE_CHECK([whether open can visit directories], + [gl_cv_func_open_directory_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <fcntl.h> + ]GL_MDA_DEFINES], + [[return open(".", O_RDONLY) < 0;]])], + [gl_cv_func_open_directory_works=yes], + [gl_cv_func_open_directory_works=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_open_directory_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_open_directory_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_open_directory_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_open_directory_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_open_directory_works="$gl_cross_guess_normal" ;; + esac + ])]) + case "$gl_cv_func_open_directory_works" in + *yes) ;; + *) + AC_DEFINE([REPLACE_OPEN_DIRECTORY], [1], [Define to 1 if open() should +work around the inability to open a directory.]) + ;; + esac + fi +]) + +# Determine whether to use the overrides in lib/fchdir.c. +AC_DEFUN([gl_TEST_FCHDIR], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([fchdir]) + if test $ac_cv_func_fchdir = no; then + HAVE_FCHDIR=0 + fi +]) + +# Prerequisites of lib/fchdir.c. +AC_DEFUN([gl_PREREQ_FCHDIR], [:]) diff --git a/gl/m4/fcntl-o.m4 b/gl/m4/fcntl-o.m4 new file mode 100644 index 0000000..59d558b --- /dev/null +++ b/gl/m4/fcntl-o.m4 @@ -0,0 +1,140 @@ +# fcntl-o.m4 serial 7 +dnl Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_PREREQ([2.60]) + +# Test whether the flags O_NOATIME and O_NOFOLLOW actually work. +# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise. +# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise. +AC_DEFUN([gl_FCNTL_O_FLAGS], +[ + dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CHECK_FUNCS_ONCE([symlink]) + AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + #include <sys/stat.h> + #if HAVE_UNISTD_H + # include <unistd.h> + #else /* on Windows with MSVC */ + # include <io.h> + # include <stdlib.h> + # defined sleep(n) _sleep ((n) * 1000) + #endif + #include <fcntl.h> + ]GL_MDA_DEFINES[ + #ifndef O_NOATIME + #define O_NOATIME 0 + #endif + #ifndef O_NOFOLLOW + #define O_NOFOLLOW 0 + #endif + static int const constants[] = + { + O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND, + O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY + }; + ]], + [[ + int result = !constants; + #if HAVE_SYMLINK + { + static char const sym[] = "conftest.sym"; + if (symlink ("/dev/null", sym) != 0) + result |= 2; + else + { + int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0); + if (fd >= 0) + { + close (fd); + result |= 4; + } + } + if (unlink (sym) != 0 || symlink (".", sym) != 0) + result |= 2; + else + { + int fd = open (sym, O_RDONLY | O_NOFOLLOW); + if (fd >= 0) + { + close (fd); + result |= 4; + } + } + unlink (sym); + } + #endif + { + static char const file[] = "confdefs.h"; + int fd = open (file, O_RDONLY | O_NOATIME); + if (fd < 0) + result |= 8; + else + { + struct stat st0; + if (fstat (fd, &st0) != 0) + result |= 16; + else + { + char c; + sleep (1); + if (read (fd, &c, 1) != 1) + result |= 24; + else + { + if (close (fd) != 0) + result |= 32; + else + { + struct stat st1; + if (stat (file, &st1) != 0) + result |= 40; + else + if (st0.st_atime != st1.st_atime) + result |= 64; + } + } + } + } + } + return result;]])], + [gl_cv_header_working_fcntl_h=yes], + [case $? in #( + 4) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #( + 64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #( + 68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #( + *) gl_cv_header_working_fcntl_h='no';; + esac], + [case "$host_os" in + # Guess 'no' on native Windows. + mingw*) gl_cv_header_working_fcntl_h='no' ;; + *) gl_cv_header_working_fcntl_h=cross-compiling ;; + esac + ]) + ]) + + case $gl_cv_header_working_fcntl_h in #( + *O_NOATIME* | no | cross-compiling) ac_val=0;; #( + *) ac_val=1;; + esac + AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val], + [Define to 1 if O_NOATIME works.]) + + case $gl_cv_header_working_fcntl_h in #( + *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #( + *) ac_val=1;; + esac + AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val], + [Define to 1 if O_NOFOLLOW works.]) +]) diff --git a/gl/m4/fcntl.m4 b/gl/m4/fcntl.m4 new file mode 100644 index 0000000..524a99a --- /dev/null +++ b/gl/m4/fcntl.m4 @@ -0,0 +1,151 @@ +# fcntl.m4 serial 11 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# For now, this module ensures that fcntl() +# - supports F_DUPFD correctly +# - supports or emulates F_DUPFD_CLOEXEC +# - supports F_GETFD +# Still to be ported to mingw: +# - F_SETFD +# - F_GETFL, F_SETFL +# - F_GETOWN, F_SETOWN +# - F_GETLK, F_SETLK, F_SETLKW +AC_DEFUN([gl_FUNC_FCNTL], +[ + dnl Persuade glibc to expose F_DUPFD_CLOEXEC. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([fcntl]) + if test $ac_cv_func_fcntl = no; then + gl_REPLACE_FCNTL + else + dnl cygwin 1.5.x F_DUPFD has wrong errno, and allows negative target + dnl haiku alpha 2 F_DUPFD has wrong errno + AC_CACHE_CHECK([whether fcntl handles F_DUPFD correctly], + [gl_cv_func_fcntl_f_dupfd_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <errno.h> + #include <fcntl.h> + #include <limits.h> + #include <sys/resource.h> + #include <unistd.h> + ]GL_MDA_DEFINES[ + #ifndef RLIM_SAVED_CUR + # define RLIM_SAVED_CUR RLIM_INFINITY + #endif + #ifndef RLIM_SAVED_MAX + # define RLIM_SAVED_MAX RLIM_INFINITY + #endif + ]], + [[int result = 0; + int bad_fd = INT_MAX; + struct rlimit rlim; + if (getrlimit (RLIMIT_NOFILE, &rlim) == 0 + && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX + && rlim.rlim_cur != RLIM_INFINITY + && rlim.rlim_cur != RLIM_SAVED_MAX + && rlim.rlim_cur != RLIM_SAVED_CUR) + bad_fd = rlim.rlim_cur; + if (fcntl (0, F_DUPFD, -1) != -1) result |= 1; + if (errno != EINVAL) result |= 2; + if (fcntl (0, F_DUPFD, bad_fd) != -1) result |= 4; + if (errno != EINVAL) result |= 8; + /* On OS/2 kLIBC, F_DUPFD does not work on a directory fd */ + { + int fd; + fd = open (".", O_RDONLY); + if (fd == -1) + result |= 16; + else if (fcntl (fd, F_DUPFD, STDERR_FILENO + 1) == -1) + result |= 32; + + close (fd); + } + return result;]])], + [gl_cv_func_fcntl_f_dupfd_works=yes], + [gl_cv_func_fcntl_f_dupfd_works=no], + [case $host_os in + aix* | cygwin* | haiku*) + gl_cv_func_fcntl_f_dupfd_works="guessing no" ;; + *) gl_cv_func_fcntl_f_dupfd_works="guessing yes" ;; + esac])]) + case $gl_cv_func_fcntl_f_dupfd_works in + *yes) ;; + *) gl_REPLACE_FCNTL + AC_DEFINE([FCNTL_DUPFD_BUGGY], [1], [Define this to 1 if F_DUPFD + behavior does not match POSIX]) ;; + esac + + dnl Many systems lack F_DUPFD_CLOEXEC. + dnl NetBSD 9.0 declares F_DUPFD_CLOEXEC but it works only like F_DUPFD. + AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC], + [gl_cv_func_fcntl_f_dupfd_cloexec], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[#include <fcntl.h> + #include <unistd.h> + int main (int argc, char *argv[]) + { + if (argc == 1) + /* parent process */ + { + if (fcntl (1, F_DUPFD_CLOEXEC, 10) < 0) + return 1; + return execl ("./conftest", "./conftest", "child", NULL); + } + else + /* child process */ + return (fcntl (10, F_GETFL) < 0 ? 0 : 42); + } + ]]) + ], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#ifdef __linux__ +/* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace + it to support the semantics on older kernels that failed with EINVAL. */ +choke me +#endif + ]])], + [gl_cv_func_fcntl_f_dupfd_cloexec=yes], + [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"]) + ], + [gl_cv_func_fcntl_f_dupfd_cloexec=no], + [case "$host_os" in + # Guess no on NetBSD. + netbsd*) gl_cv_func_fcntl_f_dupfd_cloexec="guessing no" ;; + *) gl_cv_func_fcntl_f_dupfd_cloexec="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_fcntl_f_dupfd_cloexec" in + *yes) ;; + *) gl_REPLACE_FCNTL + dnl No witness macro needed for this bug. + ;; + esac + fi + dnl Replace fcntl() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + gl_REPLACE_FCNTL + fi + ]) +]) + +AC_DEFUN([gl_REPLACE_FCNTL], +[ + AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([fcntl]) + if test $ac_cv_func_fcntl = no; then + HAVE_FCNTL=0 + else + REPLACE_FCNTL=1 + fi +]) diff --git a/gl/m4/fcntl_h.m4 b/gl/m4/fcntl_h.m4 new file mode 100644 index 0000000..68f4e64 --- /dev/null +++ b/gl/m4/fcntl_h.m4 @@ -0,0 +1,70 @@ +# serial 20 +# Configure fcntl.h. +dnl Copyright (C) 2006-2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN_ONCE([gl_FCNTL_H], +[ + AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) + AC_REQUIRE([gl_FCNTL_O_FLAGS]) + gl_NEXT_HEADERS([fcntl.h]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Ensure the type mode_t gets defined. + AC_REQUIRE([AC_TYPE_MODE_T]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, if it is not common + dnl enough to be declared everywhere. + gl_WARN_ON_USE_PREPARE([[#include <fcntl.h> + ]], [fcntl openat]) +]) + +# gl_FCNTL_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_FCNTL_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_FCNTL_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_FCNTL_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_FCNTL_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CREAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCNTL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NONBLOCKING]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OPEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OPENAT]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CREAT], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_OPEN], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_FCNTL_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) +]) + +AC_DEFUN([gl_FCNTL_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL]) + HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT]) + REPLACE_CREAT=0; AC_SUBST([REPLACE_CREAT]) + REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL]) + REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN]) + REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT]) +]) diff --git a/gl/m4/fdopendir.m4 b/gl/m4/fdopendir.m4 new file mode 100644 index 0000000..dfcc46c --- /dev/null +++ b/gl/m4/fdopendir.m4 @@ -0,0 +1,67 @@ +# serial 15 +# See if we need to provide fdopendir. + +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Eric Blake. + +AC_DEFUN([gl_FUNC_FDOPENDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + dnl FreeBSD 7.3 has the function, but failed to declare it. + AC_CHECK_DECLS([fdopendir], [], [HAVE_DECL_FDOPENDIR=0], [[ +#include <dirent.h> + ]]) + AC_CHECK_FUNCS_ONCE([fdopendir]) + if test $ac_cv_func_fdopendir = no; then + HAVE_FDOPENDIR=0 + else + AC_CACHE_CHECK([whether fdopendir works], + [gl_cv_func_fdopendir_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <dirent.h> +#include <fcntl.h> +#include <unistd.h> +]GL_MDA_DEFINES[ +#if !HAVE_DECL_FDOPENDIR +extern +# ifdef __cplusplus +"C" +# endif +DIR *fdopendir (int); +#endif +]], + [[int result = 0; + int fd = open ("conftest.c", O_RDONLY); + if (fd < 0) result |= 1; + if (fdopendir (fd)) result |= 2; + if (close (fd)) result |= 4; + return result; + ]])], + [gl_cv_func_fdopendir_works=yes], + [gl_cv_func_fdopendir_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_fdopendir_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_fdopendir_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_fdopendir_works="$gl_cross_guess_normal" ;; + esac + ])]) + case "$gl_cv_func_fdopendir_works" in + *yes) ;; + *) + REPLACE_FDOPENDIR=1 + ;; + esac + fi +]) diff --git a/gl/m4/filenamecat.m4 b/gl/m4/filenamecat.m4 new file mode 100644 index 0000000..3dab236 --- /dev/null +++ b/gl/m4/filenamecat.m4 @@ -0,0 +1,16 @@ +# filenamecat.m4 serial 12 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FILE_NAME_CONCAT], +[ + AC_REQUIRE([gl_FILE_NAME_CONCAT_LGPL]) +]) + +AC_DEFUN([gl_FILE_NAME_CONCAT_LGPL], +[ + dnl Prerequisites of lib/filenamecat-lgpl.c. + gl_CHECK_FUNCS_ANDROID([mempcpy], [[#include <string.h>]]) +]) diff --git a/gl/m4/flexmember.m4 b/gl/m4/flexmember.m4 new file mode 100644 index 0000000..13f7e87 --- /dev/null +++ b/gl/m4/flexmember.m4 @@ -0,0 +1,44 @@ +# serial 5 +# Check for flexible array member support. + +# Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert. + +AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER], +[ + AC_CACHE_CHECK([for flexible array member], + ac_cv_c_flexmember, + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h> + #include <stdio.h> + #include <stddef.h> + struct m { struct m *next, **list; char name[]; }; + struct s { struct s *p; struct m *m; int n; double d[]; };]], + [[int m = getchar (); + size_t nbytes = offsetof (struct s, d) + m * sizeof (double); + nbytes += sizeof (struct s) - 1; + nbytes -= nbytes % sizeof (struct s); + struct s *p = malloc (nbytes); + p->p = p; + p->m = NULL; + p->d[0] = 0.0; + return p->d != (double *) NULL;]])], + [ac_cv_c_flexmember=yes], + [ac_cv_c_flexmember=no])]) + if test $ac_cv_c_flexmember = yes; then + AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], + [Define to nothing if C supports flexible array members, and to + 1 if it does not. That way, with a declaration like 'struct s + { int n; short d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack + can be used with pre-C99 compilers. + Use 'FLEXSIZEOF (struct s, d, N * sizeof (short))' to calculate + the size in bytes of such a struct containing an N-element array.]) + else + AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1]) + fi +]) diff --git a/gl/m4/float_h.m4 b/gl/m4/float_h.m4 new file mode 100644 index 0000000..2f0c9c4 --- /dev/null +++ b/gl/m4/float_h.m4 @@ -0,0 +1,106 @@ +# float_h.m4 serial 13 +dnl Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FLOAT_H], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + GL_GENERATE_FLOAT_H=false + REPLACE_FLOAT_LDBL=0 + case "$host_os" in + aix* | beos* | openbsd* | mirbsd* | irix*) + GL_GENERATE_FLOAT_H=true + ;; + freebsd* | dragonfly*) + case "$host_cpu" in +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + GL_GENERATE_FLOAT_H=true + ;; + x86_64 ) + # On x86_64 systems, the C compiler may still be generating + # 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __x86_64__ || defined __amd64__ + int ok; + #else + error fail + #endif + ]])], + [], + [GL_GENERATE_FLOAT_H=true]) + ;; + esac + ;; + linux*) + case "$host_cpu" in + powerpc*) + GL_GENERATE_FLOAT_H=true + ;; + esac + ;; + esac + case "$host_os" in + aix* | freebsd* | dragonfly* | linux*) + if $GL_GENERATE_FLOAT_H; then + REPLACE_FLOAT_LDBL=1 + fi + ;; + esac + + dnl Test against glibc-2.7 Linux/SPARC64 bug. + REPLACE_ITOLD=0 + AC_CACHE_CHECK([whether conversion from 'int' to 'long double' works], + [gl_cv_func_itold_works], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +int i = -1; +volatile long double ld; +int main () +{ + ld += i * 1.0L; + if (ld > 0) + return 1; + return 0; +}]])], + [gl_cv_func_itold_works=yes], + [gl_cv_func_itold_works=no], + [case "$host" in + sparc*-*-linux*) + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_func_itold_works="guessing no"], + [gl_cv_func_itold_works="guessing yes"]) + ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_itold_works="guessing yes" ;; + *) gl_cv_func_itold_works="guessing yes" ;; + esac + ]) + ]) + case "$gl_cv_func_itold_works" in + *no) + REPLACE_ITOLD=1 + dnl We add the workaround to <float.h> but also to <math.h>, + dnl to increase the chances that the fix function gets pulled in. + GL_GENERATE_FLOAT_H=true + ;; + esac + + if $GL_GENERATE_FLOAT_H; then + gl_NEXT_HEADERS([float.h]) + fi + AC_SUBST([REPLACE_ITOLD]) +]) diff --git a/gl/m4/flock.m4 b/gl/m4/flock.m4 new file mode 100644 index 0000000..e547876 --- /dev/null +++ b/gl/m4/flock.m4 @@ -0,0 +1,24 @@ +# flock.m4 serial 4 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FLOCK], +[ + AC_REQUIRE([gl_SYS_FILE_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([flock]) + if test $ac_cv_func_flock = no; then + HAVE_FLOCK=0 + fi +]) + +dnl Prerequisites of lib/flock.c. +AC_DEFUN([gl_PREREQ_FLOCK], +[ + AC_CHECK_FUNCS_ONCE([fcntl]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + + dnl Do we have a POSIX fcntl lock implementation? + AC_CHECK_MEMBERS([struct flock.l_type],[],[],[[#include <fcntl.h>]]) +]) diff --git a/gl/m4/fnmatch.m4 b/gl/m4/fnmatch.m4 new file mode 100644 index 0000000..eba70de --- /dev/null +++ b/gl/m4/fnmatch.m4 @@ -0,0 +1,180 @@ +# Check for fnmatch - serial 17 -*- coding: utf-8 -*- + +# Copyright (C) 2000-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Autoconf defines AC_FUNC_FNMATCH, but that is obsolescent. +# New applications should use the macros below instead. + +# Request a POSIX compliant fnmatch function. +AC_DEFUN([gl_FUNC_FNMATCH_POSIX], +[ + m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX]) + + AC_REQUIRE([gl_FNMATCH_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_fnmatch_required_lowercase=` + echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]' + ` + AC_CHECK_FUNCS_ONCE([fnmatch]) + if test $ac_cv_func_fnmatch = no; then + HAVE_FNMATCH=0 + else + gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}" + AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch], + [$gl_fnmatch_cache_var], + [dnl Some versions of Solaris, SCO, and the GNU C Library + dnl have a broken or incompatible fnmatch. + dnl So we run a test program. If we are cross-compiling, take no chance. + dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this + dnl test. + if test $gl_fnmatch_required = GNU; then + gl_fnmatch_gnu_start= + gl_fnmatch_gnu_end= + else + gl_fnmatch_gnu_start='#if 0' + gl_fnmatch_gnu_end='#endif' + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <fnmatch.h> + #include <locale.h> + #include <stddef.h> + static int + y (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == 0; + } + static int + n (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == FNM_NOMATCH; + } + ]], + [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]"; + char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]"; + static char const A_1[] = { 'A' - 1, 0 }; + static char const A01[] = { 'A' + 1, 0 }; + static char const a_1[] = { 'a' - 1, 0 }; + static char const a01[] = { 'a' + 1, 0 }; + static char const bs_1[] = { '\\\\' - 1, 0 }; + static char const bs01[] = { '\\\\' + 1, 0 }; + int result = 0; + /* ==== Start of tests in the "C" locale ==== */ + /* These are sanity checks. They all succeed on current platforms. */ + if (!n ("a*", "", 0)) + return 1; + if (!y ("a*", "abc", 0)) + return 1; + if (!n ("d*/*1", "d/s/1", FNM_PATHNAME)) + return 1; + if (!y ("a\\\\bc", "abc", 0)) + return 1; + if (!n ("a\\\\bc", "abc", FNM_NOESCAPE)) + return 1; + if (!y ("*x", ".x", 0)) + return 1; + if (!n ("*x", ".x", FNM_PERIOD)) + return 1; + /* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=361> + exists in glibc 2.3.3, fixed in glibc 2.5. */ + if (!y (Apat, "\\\\", 0)) + result |= 2; + if (!y (Apat, "A", 0)) + result |= 2; + if (!y (apat, "\\\\", 0)) + result |= 2; + if (!y (apat, "a", 0)) + result |= 2; + if (!(n (Apat, A_1, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(n (apat, a_1, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(y (Apat, A01, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(y (apat, a01, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(y (Apat, bs_1, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(y (apat, bs_1, 0) == ('a' < '\\\\'))) + result |= 2; + if (!(n (Apat, bs01, 0) == ('A' < '\\\\'))) + result |= 2; + if (!(n (apat, bs01, 0) == ('a' < '\\\\'))) + result |= 2; + /* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=12378> + exists in glibc 2.12, fixed in glibc 2.13. */ + if (!y ("[/b", "[/b", 0)) /*"]]"*/ + result |= 4; + /* This test fails on FreeBSD 13.2, NetBSD 9.3, Cygwin 3.4.6. */ + if (!y ("[[:alnum:]]", "a", 0)) + result |= 8; + $gl_fnmatch_gnu_start /* ==== Start of GNU extensions tests ==== */ + /* Sanity checks, mainly to check the presence of the FNM_* macros. */ + if (!y ("xxXX", "xXxX", FNM_CASEFOLD)) + result |= 64; + if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)) + result |= 64; + if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME)) + result |= 64; + if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + $gl_fnmatch_gnu_end /* ==== End of GNU extensions tests ==== */ + /* ==== End of tests in the "C" locale ==== */ + /* ==== Start of tests that require a specific locale ==== */ + /* This test fails on Solaris 11.4. */ + if (setlocale (LC_ALL, "en_US.UTF-8") != NULL) + { + if (!n ("[!a-z]", "", 0)) + result |= 16; + } + /* This test fails on NetBSD 9.3, Android 13. */ + if (setlocale (LC_ALL, "C.UTF-8") != NULL) + { + if (!y ("x?y", "x\\303\\274y", 0)) + result |= 32; + } + /* ==== End of tests that require a specific locale ==== */ + return result; + ]])], + [eval "$gl_fnmatch_cache_var=yes"], + [eval "$gl_fnmatch_cache_var=no"], + [case "$host_os" in + # Guess yes on musl systems. + *-musl* | midipix*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;; + # Guess no otherwise, even on glibc systems. + *) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;; + esac + ]) + ]) + eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\"" + case "$gl_fnmatch_result" in + *yes) ;; + *) REPLACE_FNMATCH=1 ;; + esac + fi + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then + gl_REPLACE_FNMATCH_H + fi +]) + +# Request a POSIX compliant fnmatch function with GNU extensions. +AC_DEFUN([gl_FUNC_FNMATCH_GNU], +[ + m4_divert_text([INIT_PREPARE], [gl_fnmatch_required=GNU]) + + AC_REQUIRE([gl_FUNC_FNMATCH_POSIX]) +]) + +AC_DEFUN([gl_PREREQ_FNMATCH], +[ + dnl Prerequisites of lib/fnmatch.c. + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + AC_CHECK_FUNCS_ONCE([mbsrtowcs]) +]) diff --git a/gl/m4/fnmatch_h.m4 b/gl/m4/fnmatch_h.m4 new file mode 100644 index 0000000..40a62b6 --- /dev/null +++ b/gl/m4/fnmatch_h.m4 @@ -0,0 +1,87 @@ +# fnmatch_h.m4 serial 8 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN_ONCE([gl_FNMATCH_H], +[ + AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) + m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])]) + AC_CHECK_HEADERS_ONCE([fnmatch.h]) + gl_CHECK_NEXT_HEADERS([fnmatch.h]) + + dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc. + dnl This is only needed if gl_fnmatch_required = GNU. It would be possible + dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting + dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + if test $ac_cv_header_fnmatch_h = yes; then + HAVE_FNMATCH_H=1 + else + HAVE_FNMATCH_H=0 + fi + AC_SUBST([HAVE_FNMATCH_H]) + + m4_ifdef([gl_POSIXCHECK], + [GL_GENERATE_FNMATCH_H=true], + [GL_GENERATE_FNMATCH_H=false + if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then + dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE. + GL_GENERATE_FNMATCH_H=true + else + if test $ac_cv_header_fnmatch_h != yes; then + dnl Provide a substitute <fnmatch.h> file. + GL_GENERATE_FNMATCH_H=true + fi + fi + ]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <fnmatch.h> + ]], + [fnmatch]) +]) + +dnl Unconditionally enables the replacement of <fnmatch.h>. +AC_DEFUN([gl_REPLACE_FNMATCH_H], +[ + gl_FNMATCH_H_REQUIRE_DEFAULTS + GL_GENERATE_FNMATCH_H=true +]) + +# gl_FNMATCH_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_FNMATCH_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_FNMATCH_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_FNMATCH_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FNMATCH]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) +]) + +AC_DEFUN([gl_FNMATCH_H_DEFAULTS], +[ + dnl Assume POSIX behavior unless another module says otherwise. + HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH]) + REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH]) +]) diff --git a/gl/m4/free.m4 b/gl/m4/free.m4 new file mode 100644 index 0000000..0389dea --- /dev/null +++ b/gl/m4/free.m4 @@ -0,0 +1,52 @@ +# free.m4 serial 6 +# Copyright (C) 2003-2005, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert and Bruno Haible. + +AC_DEFUN([gl_FUNC_FREE], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + + dnl In the next release of POSIX, free must preserve errno. + dnl https://www.austingroupbugs.net/view.php?id=385 + dnl https://sourceware.org/bugzilla/show_bug.cgi?id=17924 + dnl So far, we know of three platforms that do this: + dnl * glibc >= 2.33, thanks to the fix for this bug: + dnl <https://sourceware.org/bugzilla/show_bug.cgi?id=17924> + dnl * OpenBSD >= 4.5, thanks to this commit: + dnl <https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/malloc.c.diff?r1=1.100&r2=1.101&f=h> + dnl * Solaris, because its malloc() implementation is based on brk(), + dnl not mmap(); hence its free() implementation makes no system calls. + dnl For other platforms, you can only be sure if they state it in their + dnl documentation, or by code inspection of the free() implementation in libc. + AC_CACHE_CHECK([whether free is known to preserve errno], + [gl_cv_func_free_preserves_errno], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h> + ]], + [[#if 2 < __GLIBC__ + (33 <= __GLIBC_MINOR__) + #elif defined __OpenBSD__ + #elif defined __sun + #else + #error "'free' is not known to preserve errno" + #endif + ]])], + [gl_cv_func_free_preserves_errno=yes], + [gl_cv_func_free_preserves_errno=no]) + ]) + + case $gl_cv_func_free_preserves_errno in + *yes) + AC_DEFINE([HAVE_FREE_POSIX], [1], + [Define if the 'free' function is guaranteed to preserve errno.]) + ;; + *) REPLACE_FREE=1 ;; + esac +]) + +# Prerequisites of lib/free.c. +AC_DEFUN([gl_PREREQ_FREE], [:]) diff --git a/gl/m4/fstat.m4 b/gl/m4/fstat.m4 new file mode 100644 index 0000000..7cb2edb --- /dev/null +++ b/gl/m4/fstat.m4 @@ -0,0 +1,40 @@ +# fstat.m4 serial 8 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FSTAT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + + case "$host_os" in + mingw* | solaris*) + dnl On MinGW, the original stat() returns st_atime, st_mtime, + dnl st_ctime values that are affected by the time zone. + dnl Solaris stat can return a negative tv_nsec. + REPLACE_FSTAT=1 + ;; + esac + + dnl Replace fstat() for supporting the gnulib-defined open() on directories. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + case "$gl_cv_func_open_directory_works" in + *yes) ;; + *) + REPLACE_FSTAT=1 + ;; + esac + fi + ]) +]) + +# Prerequisites of lib/fstat.c and lib/stat-w32.c. +AC_DEFUN([gl_PREREQ_FSTAT], [ + AC_REQUIRE([gl_SYS_STAT_H]) + AC_REQUIRE([gl_PREREQ_STAT_W32]) + : +]) diff --git a/gl/m4/fstatat.m4 b/gl/m4/fstatat.m4 new file mode 100644 index 0000000..0830769 --- /dev/null +++ b/gl/m4/fstatat.m4 @@ -0,0 +1,65 @@ +# fstatat.m4 serial 4 +dnl Copyright (C) 2004-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Jim Meyering. + +# If we have the fstatat function, and it has the bug (in AIX 7.1) +# that it does not fill in st_size correctly, use the replacement function. +AC_DEFUN([gl_FUNC_FSTATAT], +[ + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([fstatat]) + + if test $ac_cv_func_fstatat = no; then + HAVE_FSTATAT=0 + else + dnl Test for an AIX 7.1 bug; see + dnl <https://lists.gnu.org/r/bug-tar/2011-09/msg00015.html>. + AC_CACHE_CHECK([whether fstatat (..., 0) works], + [gl_cv_func_fstatat_zero_flag], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[ + #include <fcntl.h> + #include <sys/stat.h> + int + main (void) + { + struct stat a; + return fstatat (AT_FDCWD, ".", &a, 0) != 0; + } + ]])], + [gl_cv_func_fstatat_zero_flag=yes], + [gl_cv_func_fstatat_zero_flag=no], + [case "$host_os" in + aix*) gl_cv_func_fstatat_zero_flag="guessing no";; + *) gl_cv_func_fstatat_zero_flag="guessing yes";; + esac + ]) + ]) + + case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in + *yes+*yes) ;; + *) REPLACE_FSTATAT=1 ;; + esac + + case $host_os in + solaris*) + REPLACE_FSTATAT=1 ;; + esac + + case $REPLACE_FSTATAT,$gl_cv_func_fstatat_zero_flag in + 1,*yes) + AC_DEFINE([HAVE_WORKING_FSTATAT_ZERO_FLAG], [1], + [Define to 1 if fstatat (..., 0) works. + For example, it does not work in AIX 7.1.]) + ;; + esac + fi +]) diff --git a/gl/m4/getcwd-abort-bug.m4 b/gl/m4/getcwd-abort-bug.m4 new file mode 100644 index 0000000..cd1240c --- /dev/null +++ b/gl/m4/getcwd-abort-bug.m4 @@ -0,0 +1,158 @@ +# serial 16 +# Determine whether getcwd aborts when the length of the working directory +# name is unusually large. Any length between 4k and 16k trigger the bug +# when using glibc-2.4.90-9 or older. + +# Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# From Jim Meyering + +# gl_FUNC_GETCWD_ABORT_BUG([ACTION-IF-BUGGY[, ACTION-IF-WORKS]]) +AC_DEFUN([gl_FUNC_GETCWD_ABORT_BUG], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_DECLS_ONCE([getcwd]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) + + gl_CHECK_FUNC_GETPAGESIZE + if test $gl_cv_func_getpagesize = yes; then + AC_DEFINE_UNQUOTED([HAVE_GETPAGESIZE], [1], + [Define to 1 if the system has the 'getpagesize' function.]) + fi + + AC_CACHE_CHECK([whether getcwd succeeds when 4k < cwd_length < 16k], + [gl_cv_func_getcwd_succeeds_beyond_4k], + [# Remove any remnants of a previous test. + rm -rf confdir-14B--- + # Arrange for deletion of the temporary directory this test creates. + ac_clean_files="$ac_clean_files confdir-14B---" + dnl Please keep this in sync with tests/test-getcwd.c. + AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[ +#include <errno.h> +#include <stdlib.h> +#if HAVE_UNISTD_H +# include <unistd.h> +#else /* on Windows with MSVC */ +# include <direct.h> +#endif +#include <string.h> +#include <sys/stat.h> + +]gl_PATHMAX_SNIPPET[ +]GL_MDA_DEFINES[ + +#ifndef S_IRWXU +# define S_IRWXU 0700 +#endif + +/* FIXME: skip the run-test altogether on systems without getpagesize. */ +#if ! HAVE_GETPAGESIZE +# define getpagesize() 0 +#endif + +/* This size is chosen to be larger than PATH_MAX (4k), yet smaller than + the 16kB pagesize on ia64 linux. Those conditions make the code below + trigger a bug in glibc's getcwd implementation before 2.4.90-10. */ +#define TARGET_LEN (5 * 1024) + +int +main () +{ + char *cwd; + size_t initial_cwd_len; + int fail = 0; + + /* The bug is triggered when PATH_MAX < getpagesize (), so skip + this relatively expensive and invasive test if that's not true. */ +#ifdef PATH_MAX + int bug_possible = PATH_MAX < getpagesize (); +#else + int bug_possible = 0; +#endif + if (! bug_possible) + return 0; + + cwd = getcwd (NULL, 0); + if (cwd == NULL) + return 2; + + initial_cwd_len = strlen (cwd); + free (cwd); + + if (1) + { + static char const dir_name[] = "confdir-14B---"; + size_t desired_depth = ((TARGET_LEN - 1 - initial_cwd_len) + / sizeof dir_name); + size_t d; + for (d = 0; d < desired_depth; d++) + { + if (mkdir (dir_name, S_IRWXU) < 0 || chdir (dir_name) < 0) + { + if (! (errno == ERANGE || errno == ENAMETOOLONG + || errno == ENOENT)) + fail = 3; /* Unable to construct deep hierarchy. */ + break; + } + } + + /* If libc has the bug in question, this invocation of getcwd + results in a failed assertion. */ + cwd = getcwd (NULL, 0); + if (cwd == NULL) + fail = 4; /* getcwd didn't assert, but it failed for a long name + where the answer could have been learned. */ + free (cwd); + + /* Call rmdir first, in case the above chdir failed. */ + rmdir (dir_name); + while (0 < d--) + { + if (chdir ("..") < 0) + { + fail = 5; + break; + } + rmdir (dir_name); + } + } + + return fail; +} + ]])], + [gl_cv_func_getcwd_succeeds_beyond_4k=yes], + [dnl An abort will provoke an exit code of something like 134 (128 + 6). + dnl An exit code of 4 can also occur (for example in + dnl musl libc 1.2.2/powerpc64le, NetBSD 9.0, OpenBSD 6.7: + dnl getcwd (NULL, 0) fails rather than returning a string longer than + dnl PATH_MAX. This may be POSIX compliant (in some interpretations of + dnl POSIX). But gnulib's getcwd module wants to provide a non-NULL + dnl value in this case. + ret=$? + if test $ret -ge 128 || test $ret = 4; then + gl_cv_func_getcwd_succeeds_beyond_4k=no + else + gl_cv_func_getcwd_succeeds_beyond_4k=yes + fi + ], + [case "$host_os" in + # Guess no otherwise, even on glibc systems and musl systems. + *) gl_cv_func_getcwd_succeeds_beyond_4k="guessing no" + esac + ]) + ]) + case "$gl_cv_func_getcwd_succeeds_beyond_4k" in + *no) + $1 + ;; + *) + $2 + ;; + esac +]) diff --git a/gl/m4/getcwd-path-max.m4 b/gl/m4/getcwd-path-max.m4 new file mode 100644 index 0000000..516c078 --- /dev/null +++ b/gl/m4/getcwd-path-max.m4 @@ -0,0 +1,236 @@ +# serial 25 +# Check for several getcwd bugs with long file names. +# If so, arrange to compile the wrapper function. + +# This is necessary for at least GNU libc on linux-2.4.19 and 2.4.20. +# I've heard that this is due to a Linux kernel bug, and that it has +# been fixed between 2.4.21-pre3 and 2.4.21-pre4. + +# Copyright (C) 2003-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# From Jim Meyering + +AC_DEFUN([gl_FUNC_GETCWD_PATH_MAX], +[ + AC_CHECK_DECLS_ONCE([getcwd]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) + AC_CACHE_CHECK([whether getcwd handles long file names properly], + [gl_cv_func_getcwd_path_max], + [# Arrange for deletion of the temporary directory this test creates. + ac_clean_files="$ac_clean_files confdir3" + dnl Please keep this in sync with tests/test-getcwd.c. + AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[ +#include <errno.h> +#include <stdlib.h> +#if HAVE_UNISTD_H +# include <unistd.h> +#else +# include <direct.h> +#endif +#include <string.h> +#include <limits.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <fcntl.h> + +]gl_PATHMAX_SNIPPET[ + +#ifndef AT_FDCWD +# define AT_FDCWD 0 +#endif +#ifdef ENAMETOOLONG +# define is_ENAMETOOLONG(x) ((x) == ENAMETOOLONG) +#else +# define is_ENAMETOOLONG(x) 0 +#endif + +/* Use the getcwd function, not any macro. */ +#undef getcwd + +]GL_MDA_DEFINES[ + +#ifndef S_IRWXU +# define S_IRWXU 0700 +#endif + +/* The length of this name must be 8. */ +#define DIR_NAME "confdir3" +#define DIR_NAME_LEN 8 +#define DIR_NAME_SIZE (DIR_NAME_LEN + 1) + +/* The length of "../". */ +#define DOTDOTSLASH_LEN 3 + +/* Leftover bytes in the buffer, to work around library or OS bugs. */ +#define BUF_SLOP 20 + +int +main () +{ +#ifndef PATH_MAX + /* The Hurd doesn't define this, so getcwd can't exhibit the bug -- + at least not on a local file system. And if we were to start worrying + about remote file systems, we'd have to enable the wrapper function + all of the time, just to be safe. That's not worth the cost. */ + exit (0); +#elif ((INT_MAX / (DIR_NAME_SIZE / DOTDOTSLASH_LEN + 1) \ + - DIR_NAME_SIZE - BUF_SLOP) \ + <= PATH_MAX) + /* FIXME: Assuming there's a system for which this is true, + this should be done in a compile test. */ + exit (0); +#else + char buf[PATH_MAX * (DIR_NAME_SIZE / DOTDOTSLASH_LEN + 1) + + DIR_NAME_SIZE + BUF_SLOP]; + char *cwd = getcwd (buf, PATH_MAX); + size_t initial_cwd_len; + size_t cwd_len; + int fail = 0; + size_t n_chdirs = 0; + + if (cwd == NULL) + exit (10); + + cwd_len = initial_cwd_len = strlen (cwd); + + while (1) + { + size_t dotdot_max = PATH_MAX * (DIR_NAME_SIZE / DOTDOTSLASH_LEN); + char *c = NULL; + + cwd_len += DIR_NAME_SIZE; + /* If mkdir or chdir fails, it could be that this system cannot create + any file with an absolute name longer than PATH_MAX, such as cygwin. + If so, leave fail as 0, because the current working directory can't + be too long for getcwd if it can't even be created. On Linux with + the 9p file system, mkdir fails with error EINVAL when cwd_len gets + too long; ignore this failure because the getcwd() system call + produces good results whereas the gnulib substitute calls getdents64 + which fails with error EPROTO. + For other errors, be pessimistic and consider that as a failure, + too. */ + if (mkdir (DIR_NAME, S_IRWXU) < 0 || chdir (DIR_NAME) < 0) + { + if (! (errno == ERANGE || is_ENAMETOOLONG (errno))) + #ifdef __linux__ + if (! (errno == EINVAL)) + #endif + fail = 20; + break; + } + + if (PATH_MAX <= cwd_len && cwd_len < PATH_MAX + DIR_NAME_SIZE) + { + struct stat sb; + + c = getcwd (buf, PATH_MAX); + if (!c && errno == ENOENT) + { + fail = 11; + break; + } + if (c) + { + fail = 31; + break; + } + if (! (errno == ERANGE || is_ENAMETOOLONG (errno))) + { + fail = 21; + break; + } + + /* Our replacement needs to be able to stat() long ../../paths, + so generate a path larger than PATH_MAX to check, + avoiding the replacement if we can't stat(). */ + c = getcwd (buf, cwd_len + 1); + if (c && !AT_FDCWD && stat (c, &sb) != 0 && is_ENAMETOOLONG (errno)) + { + fail = 32; + break; + } + } + + if (dotdot_max <= cwd_len - initial_cwd_len) + { + if (dotdot_max + DIR_NAME_SIZE < cwd_len - initial_cwd_len) + break; + c = getcwd (buf, cwd_len + 1); + if (!c) + { + if (! (errno == ERANGE || errno == ENOENT + || is_ENAMETOOLONG (errno))) + { + fail = 22; + break; + } + if (AT_FDCWD || errno == ERANGE || errno == ENOENT) + { + fail = 12; + break; + } + } + } + + if (c && strlen (c) != cwd_len) + { + fail = 23; + break; + } + ++n_chdirs; + } + + /* Leaving behind such a deep directory is not polite. + So clean up here, right away, even though the driving + shell script would also clean up. */ + { + size_t i; + + /* Try rmdir first, in case the chdir failed. */ + rmdir (DIR_NAME); + for (i = 0; i <= n_chdirs; i++) + { + if (chdir ("..") < 0) + break; + if (rmdir (DIR_NAME) != 0) + break; + } + } + + exit (fail); +#endif +} + ]])], + [gl_cv_func_getcwd_path_max=yes], + [case $? in + 10|11|12) gl_cv_func_getcwd_path_max='no, but it is partly working';; + 31) gl_cv_func_getcwd_path_max='no, it has the AIX bug';; + 32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';; + *) gl_cv_func_getcwd_path_max=no;; + esac], + [# Cross-compilation guesses: + case "$host_os" in + aix*) # On AIX, it has the AIX bug. + gl_cv_func_getcwd_path_max='guessing no, it has the AIX bug' ;; + gnu*) # On Hurd, it is 'yes'. + gl_cv_func_getcwd_path_max='guessing yes' ;; + linux* | kfreebsd*) + # On older Linux+glibc it's 'no, but it is partly working', + # on newer Linux+glibc it's 'yes'. + # On Linux+musl libc, it's 'no, but it is partly working'. + # On kFreeBSD+glibc, it's 'no, but it is partly working'. + gl_cv_func_getcwd_path_max='guessing no, but it is partly working' ;; + *) # If we don't know, obey --enable-cross-guesses. + gl_cv_func_getcwd_path_max="$gl_cross_guess_normal" ;; + esac + ]) + ]) +]) diff --git a/gl/m4/getcwd.m4 b/gl/m4/getcwd.m4 new file mode 100644 index 0000000..e95db05 --- /dev/null +++ b/gl/m4/getcwd.m4 @@ -0,0 +1,168 @@ +# getcwd.m4 - check for working getcwd that is compatible with glibc + +# Copyright (C) 2001, 2003-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert. +# serial 20 + +AC_DEFUN([gl_FUNC_GETCWD_NULL], + [ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result], + [gl_cv_func_getcwd_null], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +# include <stdlib.h> +# if HAVE_UNISTD_H +# include <unistd.h> +# else /* on Windows with MSVC */ +# include <direct.h> +# endif + ]GL_MDA_DEFINES[ +# ifndef getcwd + char *getcwd (); +# endif +]], [[ +#if defined _WIN32 && ! defined __CYGWIN__ +/* mingw cwd does not start with '/', but _getcwd does allocate. + However, mingw fails to honor non-zero size. */ +#else + if (chdir ("/") != 0) + return 1; + else + { + char *f = getcwd (NULL, 0); + if (! f) + return 2; + if (f[0] != '/') + { free (f); return 3; } + if (f[1] != '\0') + { free (f); return 4; } + free (f); + return 0; + } +#endif + ]])], + [gl_cv_func_getcwd_null=yes], + [gl_cv_func_getcwd_null=no], + [[case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_getcwd_null="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_getcwd_null="guessing yes";; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_getcwd_null="guessing yes";; + # Guess yes on Cygwin. + cygwin*) gl_cv_func_getcwd_null="guessing yes";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_getcwd_null="$gl_cross_guess_normal";; + esac + ]])]) +]) + +AC_DEFUN([gl_FUNC_GETCWD_SIGNATURE], +[ + AC_CACHE_CHECK([for getcwd with POSIX signature], + [gl_cv_func_getcwd_posix_signature], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> + ]GL_MDA_DEFINES], + [[extern + #ifdef __cplusplus + "C" + #endif + char *getcwd (char *, size_t); + ]]) + ], + [gl_cv_func_getcwd_posix_signature=yes], + [gl_cv_func_getcwd_posix_signature=no]) + ]) +]) + +dnl Guarantee that getcwd will malloc with a NULL first argument. Assumes +dnl that either the system getcwd is robust, or that calling code is okay +dnl with spurious failures when run from a directory with an absolute name +dnl larger than 4k bytes. +dnl +dnl Assumes that getcwd exists; if you are worried about obsolete +dnl platforms that lacked getcwd(), then you need to use the GPL module. +AC_DEFUN([gl_FUNC_GETCWD_LGPL], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_GETCWD_NULL]) + AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE]) + + case $gl_cv_func_getcwd_null,$gl_cv_func_getcwd_posix_signature in + *yes,yes) ;; + *) + dnl Minimal replacement lib/getcwd-lgpl.c. + REPLACE_GETCWD=1 + ;; + esac +]) + +dnl Check for all known getcwd bugs; useful for a program likely to be +dnl executed from an arbitrary location. +AC_DEFUN([gl_FUNC_GETCWD], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_GETCWD_NULL]) + AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + gl_abort_bug=no + case "$host_os" in + mingw*) + gl_cv_func_getcwd_path_max=yes + ;; + *) + gl_FUNC_GETCWD_PATH_MAX + case "$gl_cv_func_getcwd_null" in + *yes) + gl_FUNC_GETCWD_ABORT_BUG([gl_abort_bug=yes]) + ;; + esac + ;; + esac + dnl Define HAVE_MINIMALLY_WORKING_GETCWD and HAVE_PARTLY_WORKING_GETCWD + dnl if appropriate. + case "$gl_cv_func_getcwd_path_max" in + *"no" | *"no, it has the AIX bug") ;; + *) + AC_DEFINE([HAVE_MINIMALLY_WORKING_GETCWD], [1], + [Define to 1 if getcwd minimally works, that is, its result can be + trusted when it succeeds.]) + ;; + esac + case "$gl_cv_func_getcwd_path_max" in + *"no, but it is partly working") + AC_DEFINE([HAVE_PARTLY_WORKING_GETCWD], [1], + [Define to 1 if getcwd works, except it sometimes fails when it + shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT.]) + ;; + *"yes, but with shorter paths") + AC_DEFINE([HAVE_GETCWD_SHORTER], [1], + [Define to 1 if getcwd works, but with shorter paths + than is generally tested with the replacement.]) + ;; + esac + + if { case "$gl_cv_func_getcwd_null" in *yes) false;; *) true;; esac; } \ + || test $gl_cv_func_getcwd_posix_signature != yes \ + || { case "$gl_cv_func_getcwd_path_max" in *yes*) false;; *) true;; esac; } \ + || test $gl_abort_bug = yes; then + REPLACE_GETCWD=1 + fi +]) + +# Prerequisites of lib/getcwd.c, when full replacement is in effect. +AC_DEFUN([gl_PREREQ_GETCWD], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO]) + : +]) diff --git a/gl/m4/getdelim.m4 b/gl/m4/getdelim.m4 new file mode 100644 index 0000000..60555b9 --- /dev/null +++ b/gl/m4/getdelim.m4 @@ -0,0 +1,114 @@ +# getdelim.m4 serial 19 + +dnl Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc. +dnl +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.59]) + +AC_DEFUN([gl_FUNC_GETDELIM], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + dnl Persuade glibc <stdio.h> to declare getdelim(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([getdelim]) + + gl_CHECK_FUNCS_ANDROID([getdelim], [[#include <stdio.h>]]) + if test $ac_cv_func_getdelim = yes; then + HAVE_GETDELIM=1 + dnl Found it in some library. Verify that it works. + AC_CACHE_CHECK([for working getdelim function], + [gl_cv_func_working_getdelim], + [case "$host_os" in + darwin*) + dnl On macOS 10.13, valgrind detected an out-of-bounds read during + dnl the GNU sed test suite: + dnl Invalid read of size 16 + dnl at 0x100EE6A05: _platform_memchr$VARIANT$Base (in /usr/lib/system/libsystem_platform.dylib) + dnl by 0x100B7B0BD: getdelim (in /usr/lib/system/libsystem_c.dylib) + dnl by 0x10000B0BE: ck_getdelim (utils.c:254) + gl_cv_func_working_getdelim=no ;; + *) + echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + int main () + { + FILE *in = fopen ("./conftest.data", "r"); + if (!in) + return 1; + { + /* Test result for a NULL buffer and a zero size. + Based on a test program from Karl Heuer. */ + char *line = NULL; + size_t siz = 0; + int len = getdelim (&line, &siz, '\n', in); + if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) + { free (line); fclose (in); return 2; } + free (line); + } + { + /* Test result for a NULL buffer and a non-zero size. + This crashes on FreeBSD 8.0. */ + char *line = NULL; + size_t siz = (size_t)(~0) / 4; + if (getdelim (&line, &siz, '\n', in) == -1) + { fclose (in); return 3; } + free (line); + } + fclose (in); + return 0; + } + ]])], + [gl_cv_func_working_getdelim=yes], + [gl_cv_func_working_getdelim=no], + [dnl We're cross compiling. + dnl Guess it works on glibc2 systems and musl systems. + AC_EGREP_CPP([Lucky GNU user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) && !defined __UCLIBC__ + Lucky GNU user + #endif +#endif + ], + [gl_cv_func_working_getdelim="guessing yes"], + [case "$host_os" in + *-musl* | midipix*) gl_cv_func_working_getdelim="guessing yes" ;; + *) gl_cv_func_working_getdelim="$gl_cross_guess_normal" ;; + esac + ]) + ]) + ;; + esac + ]) + case "$gl_cv_func_working_getdelim" in + *yes) ;; + *) REPLACE_GETDELIM=1 ;; + esac + else + HAVE_GETDELIM=0 + case "$gl_cv_onwards_func_getdelim" in + future*) REPLACE_GETDELIM=1 ;; + esac + fi + + if test $ac_cv_have_decl_getdelim = no; then + HAVE_DECL_GETDELIM=0 + fi +]) + +# Prerequisites of lib/getdelim.c. +AC_DEFUN([gl_PREREQ_GETDELIM], +[ + AC_CHECK_FUNCS([flockfile funlockfile]) + AC_CHECK_DECLS([getc_unlocked]) +]) diff --git a/gl/m4/getdtablesize.m4 b/gl/m4/getdtablesize.m4 new file mode 100644 index 0000000..8bcda90 --- /dev/null +++ b/gl/m4/getdtablesize.m4 @@ -0,0 +1,63 @@ +# getdtablesize.m4 serial 8 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_GETDTABLESIZE], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([getdtablesize]) + AC_CHECK_DECLS_ONCE([getdtablesize]) + if test $ac_cv_func_getdtablesize = yes && + test $ac_cv_have_decl_getdtablesize = yes; then + AC_CACHE_CHECK([whether getdtablesize works], + [gl_cv_func_getdtablesize_works], + [dnl There are two concepts: the "maximum possible file descriptor value + 1" + dnl and the "maximum number of open file descriptors in a process". + dnl Per SUSv2 and POSIX, getdtablesize() should return the first one. + dnl On most platforms, the first and the second concept are the same. + dnl On OpenVMS, however, they are different and getdtablesize() returns + dnl the second one; thus the test below fails. But we don't care + dnl because there's no good way to write a replacement getdtablesize(). + case "$host_os" in + vms*) gl_cv_func_getdtablesize_works="no (limitation)" ;; + *) + dnl Cygwin 1.7.25 automatically increases the RLIMIT_NOFILE soft + dnl limit up to an unchangeable hard limit; all other platforms + dnl correctly require setrlimit before getdtablesize() can report + dnl a larger value. + AC_RUN_IFELSE([ + AC_LANG_PROGRAM( + [[#include <unistd.h>] + GL_MDA_DEFINES + ], + [[int size = getdtablesize(); + if (dup2 (0, getdtablesize()) != -1) + return 1; + if (size != getdtablesize()) + return 2; + ]])], + [gl_cv_func_getdtablesize_works=yes], + [gl_cv_func_getdtablesize_works=no], + [case "$host_os" in + cygwin*) # on cygwin 1.5.25, getdtablesize() automatically grows + gl_cv_func_getdtablesize_works="guessing no" ;; + *) gl_cv_func_getdtablesize_works="guessing yes" ;; + esac + ]) + ;; + esac + ]) + case "$gl_cv_func_getdtablesize_works" in + *yes | "no (limitation)") ;; + *) REPLACE_GETDTABLESIZE=1 ;; + esac + else + HAVE_GETDTABLESIZE=0 + fi +]) + +# Prerequisites of lib/getdtablesize.c. +AC_DEFUN([gl_PREREQ_GETDTABLESIZE], [:]) diff --git a/gl/m4/getline.m4 b/gl/m4/getline.m4 new file mode 100644 index 0000000..83e7e93 --- /dev/null +++ b/gl/m4/getline.m4 @@ -0,0 +1,111 @@ +# getline.m4 serial 33 + +dnl Copyright (C) 1998-2003, 2005-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.59]) + +dnl See if there's a working, system-supplied version of the getline function. +dnl We can't just do AC_REPLACE_FUNCS([getline]) because some systems +dnl have a function by that name in -linet that doesn't have anything +dnl to do with the function we need. +AC_DEFUN([gl_FUNC_GETLINE], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl Persuade glibc <stdio.h> to declare getline(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([getline]) + + gl_CHECK_FUNCS_ANDROID([getline], [[#include <stdio.h>]]) + if test $ac_cv_func_getline = yes; then + dnl Found it in some library. Verify that it works. + AC_CACHE_CHECK([for working getline function], + [am_cv_func_working_getline], + [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + int main () + { + FILE *in = fopen ("./conftest.data", "r"); + if (!in) + return 1; + { + /* Test result for a NULL buffer and a zero size. + Based on a test program from Karl Heuer. */ + char *line = NULL; + size_t siz = 0; + int len = getline (&line, &siz, in); + if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) + { free (line); fclose (in); return 2; } + free (line); + } + { + /* Test result for a NULL buffer and a non-zero size. + This crashes on FreeBSD 8.0. */ + char *line = NULL; + size_t siz = (size_t)(~0) / 4; + if (getline (&line, &siz, in) == -1) + { fclose (in); return 3; } + free (line); + } + fclose (in); + return 0; + } + ]])], + [am_cv_func_working_getline=yes], + [am_cv_func_working_getline=no], + [dnl We're cross compiling. + dnl Guess it works on glibc2 systems and musl systems. + AC_EGREP_CPP([Lucky GNU user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) && !defined __UCLIBC__ + Lucky GNU user + #endif +#endif + ], + [am_cv_func_working_getline="guessing yes"], + [case "$host_os" in + *-musl* | midipix*) am_cv_func_working_getline="guessing yes" ;; + *) am_cv_func_working_getline="$gl_cross_guess_normal" ;; + esac + ]) + ]) + ]) + else + am_cv_func_working_getline=no + case "$gl_cv_onwards_func_getline" in + future*) REPLACE_GETLINE=1 ;; + esac + fi + + if test $ac_cv_have_decl_getline = no; then + HAVE_DECL_GETLINE=0 + fi + + case "$am_cv_func_working_getline" in + *yes) ;; + *) + dnl Set REPLACE_GETLINE always: Even if we have not found the broken + dnl getline function among $LIBS, it may exist in libinet and the + dnl executable may be linked with -linet. + REPLACE_GETLINE=1 + ;; + esac +]) + +# Prerequisites of lib/getline.c. +AC_DEFUN([gl_PREREQ_GETLINE], +[ + : +]) diff --git a/gl/m4/getlogin.m4 b/gl/m4/getlogin.m4 new file mode 100644 index 0000000..0686b5f --- /dev/null +++ b/gl/m4/getlogin.m4 @@ -0,0 +1,35 @@ +# getlogin.m4 serial 6 +dnl Copyright (C) 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_GETLOGIN], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([getlogin]) + if test $ac_cv_have_decl_getlogin = no; then + HAVE_DECL_GETLOGIN=0 + fi + AC_CHECK_FUNCS_ONCE([getlogin]) + if test $ac_cv_func_getlogin = no; then + HAVE_GETLOGIN=0 + fi +]) + +dnl Determines the library needed by the implementation of the +dnl getlogin and getlogin_r functions. +AC_DEFUN([gl_LIB_GETLOGIN], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case $host_os in + mingw*) + GETLOGIN_LIB='-ladvapi32' ;; + *) + GETLOGIN_LIB= ;; + esac + AC_SUBST([GETLOGIN_LIB]) + dnl For backward compatibility. + LIB_GETLOGIN="$GETLOGIN_LIB" + AC_SUBST([LIB_GETLOGIN]) +]) diff --git a/gl/m4/getlogin_r.m4 b/gl/m4/getlogin_r.m4 new file mode 100644 index 0000000..4383ea6 --- /dev/null +++ b/gl/m4/getlogin_r.m4 @@ -0,0 +1,95 @@ +#serial 15 + +# Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Derek Price +dnl +dnl Provide getlogin_r when the system lacks it. +dnl + +AC_DEFUN([gl_FUNC_GETLOGIN_R], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + dnl Persuade glibc <unistd.h> to declare getlogin_r(). + dnl Persuade Solaris <unistd.h> to provide the POSIX compliant declaration of + dnl getlogin_r(). + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([getlogin_r]) + if test $ac_cv_have_decl_getlogin_r = no; then + HAVE_DECL_GETLOGIN_R=0 + fi + + gl_CHECK_FUNCS_ANDROID([getlogin_r], [[#include <unistd.h>]]) + if test $ac_cv_func_getlogin_r = no; then + HAVE_GETLOGIN_R=0 + case "$gl_cv_onwards_func_getlogin_r" in + future*) REPLACE_GETLOGIN_R=1 ;; + esac + else + HAVE_GETLOGIN_R=1 + dnl On Mac OS X 10.13 and OSF/1 5.1, getlogin_r returns a truncated result + dnl if the buffer is not large enough. + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether getlogin_r works with small buffers], + [gl_cv_func_getlogin_r_works], + [ + dnl Initial guess, used when cross-compiling. +changequote(,)dnl + case "$host_os" in + # Guess no on Mac OS X, OSF/1. + darwin* | osf*) gl_cv_func_getlogin_r_works="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_getlogin_r_works="guessing yes" ;; + esac +changequote([,])dnl + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stddef.h> +#include <string.h> +#include <unistd.h> +#if !HAVE_DECL_GETLOGIN_R +extern +# ifdef __cplusplus +"C" +# endif +int getlogin_r (char *, size_t); +#endif +int +main (void) +{ + int result = 0; + char buf[100]; + + if (getlogin_r (buf, 0) == 0) + result |= 1; + if (getlogin_r (buf, 1) == 0) + result |= 2; + if (getlogin_r (buf, 100) == 0) + { + size_t n = strlen (buf); + if (getlogin_r (buf, n) == 0) + result |= 4; + } + return result; +}]])], + [gl_cv_func_getlogin_r_works=yes], + [gl_cv_func_getlogin_r_works=no], + [:]) + ]) + case "$gl_cv_func_getlogin_r_works" in + *yes) ;; + *) REPLACE_GETLOGIN_R=1 ;; + esac + fi +]) + +AC_DEFUN([gl_PREREQ_GETLOGIN_R], +[ + AC_CHECK_DECLS_ONCE([getlogin]) +]) diff --git a/gl/m4/getopt.m4 b/gl/m4/getopt.m4 new file mode 100644 index 0000000..7981a09 --- /dev/null +++ b/gl/m4/getopt.m4 @@ -0,0 +1,381 @@ +# getopt.m4 serial 48 +dnl Copyright (C) 2002-2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Request a POSIX compliant getopt function. +AC_DEFUN([gl_FUNC_GETOPT_POSIX], +[ + m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX]) + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_GETOPT_CHECK_HEADERS]) + dnl Other modules can request the gnulib implementation of the getopt + dnl functions unconditionally, by defining gl_REPLACE_GETOPT_ALWAYS. + dnl argp.m4 does this. + m4_ifdef([gl_REPLACE_GETOPT_ALWAYS], [ + REPLACE_GETOPT=1 + ], [ + REPLACE_GETOPT=0 + if test -n "$gl_replace_getopt"; then + REPLACE_GETOPT=1 + fi + ]) + GL_GENERATE_GETOPT_H=false + GL_GENERATE_GETOPT_CDEFS_H=false + if test $REPLACE_GETOPT = 1; then + dnl Arrange for getopt.h to be created. + gl_GETOPT_SUBSTITUTE_HEADER + fi +]) + +# Request a POSIX compliant getopt function with GNU extensions (such as +# options with optional arguments) and the functions getopt_long, +# getopt_long_only. +AC_DEFUN([gl_FUNC_GETOPT_GNU], +[ + dnl Set the variable gl_getopt_required, so that all invocations of + dnl gl_GETOPT_CHECK_HEADERS in the scope of the current configure file + dnl will check for getopt with GNU extensions. + dnl This means that if one gnulib-tool invocation requests getopt-posix + dnl and another gnulib-tool invocation requests getopt-gnu, it is as if + dnl both had requested getopt-gnu. + m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU]) + + dnl No need to invoke gl_FUNC_GETOPT_POSIX here; this is automatically + dnl done through the module dependency getopt-gnu -> getopt-posix. +]) + +# Determine whether to replace the entire getopt facility. +AC_DEFUN([gl_GETOPT_CHECK_HEADERS], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([AC_PROG_AWK]) dnl for awk that supports ENVIRON + + dnl Persuade Solaris <unistd.h> to declare optarg, optind, opterr, optopt. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + gl_CHECK_NEXT_HEADERS([getopt.h]) + if test $ac_cv_header_getopt_h = yes; then + HAVE_GETOPT_H=1 + else + HAVE_GETOPT_H=0 + fi + AC_SUBST([HAVE_GETOPT_H]) + + gl_replace_getopt= + + dnl Test whether <getopt.h> is available. + if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then + AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes]) + fi + + dnl Test whether the function getopt_long is available. + if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then + AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes]) + fi + + dnl POSIX 2008 does not specify leading '+' behavior, but see + dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on + dnl the next version of POSIX. For now, we only guarantee leading '+' + dnl behavior with getopt-gnu. + if test -z "$gl_replace_getopt"; then + AC_CACHE_CHECK([whether getopt is POSIX compatible], + [gl_cv_func_getopt_posix], + [ + dnl Merging these three different test programs into a single one + dnl would require a reset mechanism. On BSD systems, it can be done + dnl through 'optreset'; on some others (glibc), it can be done by + dnl setting 'optind' to 0; on others again (HP-UX, IRIX, OSF/1, + dnl Solaris 9, musl libc), there is no such mechanism. + if test $cross_compiling = no; then + dnl Sanity check. Succeeds everywhere (except on MSVC, + dnl which lacks <unistd.h> and getopt() entirely). + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +int +main () +{ + static char program[] = "program"; + static char a[] = "-a"; + static char foo[] = "foo"; + static char bar[] = "bar"; + char *argv[] = { program, a, foo, bar, NULL }; + int c; + + c = getopt (4, argv, "ab"); + if (!(c == 'a')) + return 1; + c = getopt (4, argv, "ab"); + if (!(c == -1)) + return 2; + if (!(optind == 2)) + return 3; + return 0; +} +]])], + [gl_cv_func_getopt_posix=maybe], + [gl_cv_func_getopt_posix=no]) + if test $gl_cv_func_getopt_posix = maybe; then + dnl Sanity check with '+'. Succeeds everywhere (except on MSVC, + dnl which lacks <unistd.h> and getopt() entirely). + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +int +main () +{ + static char program[] = "program"; + static char donald[] = "donald"; + static char p[] = "-p"; + static char billy[] = "billy"; + static char duck[] = "duck"; + static char a[] = "-a"; + static char bar[] = "bar"; + char *argv[] = { program, donald, p, billy, duck, a, bar, NULL }; + int c; + + c = getopt (7, argv, "+abp:q:"); + if (!(c == -1)) + return 4; + if (!(strcmp (argv[0], "program") == 0)) + return 5; + if (!(strcmp (argv[1], "donald") == 0)) + return 6; + if (!(strcmp (argv[2], "-p") == 0)) + return 7; + if (!(strcmp (argv[3], "billy") == 0)) + return 8; + if (!(strcmp (argv[4], "duck") == 0)) + return 9; + if (!(strcmp (argv[5], "-a") == 0)) + return 10; + if (!(strcmp (argv[6], "bar") == 0)) + return 11; + if (!(optind == 1)) + return 12; + return 0; +} +]])], + [gl_cv_func_getopt_posix=maybe], + [gl_cv_func_getopt_posix=no]) + fi + if test $gl_cv_func_getopt_posix = maybe; then + dnl Detect Mac OS X 10.5, AIX 7.1, mingw bug. + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +int +main () +{ + static char program[] = "program"; + static char ab[] = "-ab"; + char *argv[3] = { program, ab, NULL }; + if (getopt (2, argv, "ab:") != 'a') + return 13; + if (getopt (2, argv, "ab:") != '?') + return 14; + if (optopt != 'b') + return 15; + if (optind != 2) + return 16; + return 0; +} +]])], + [gl_cv_func_getopt_posix=yes], + [gl_cv_func_getopt_posix=no]) + fi + else + case "$host_os" in + darwin* | aix* | mingw*) gl_cv_func_getopt_posix="guessing no";; + *) gl_cv_func_getopt_posix="guessing yes";; + esac + fi + ]) + case "$gl_cv_func_getopt_posix" in + *no) gl_replace_getopt=yes ;; + esac + fi + + if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then + AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_getopt_gnu], + [# Even with POSIXLY_CORRECT, the GNU extension of leading '-' in the + # optstring is necessary for programs like m4 that have POSIX-mandated + # semantics for supporting options interspersed with files. + # Also, since getopt_long is a GNU extension, we require optind=0. + # Bash ties 'set -o posix' to a non-exported POSIXLY_CORRECT; + # so take care to revert to the correct (non-)export state. +dnl GNU Coding Standards currently allow awk but not env; besides, env +dnl is ambiguous with environment values that contain newlines. + gl_awk_probe='BEGIN { if ("POSIXLY_CORRECT" in ENVIRON) print "x" }' + case ${POSIXLY_CORRECT+x}`$AWK "$gl_awk_probe" </dev/null` in + xx) gl_had_POSIXLY_CORRECT=exported ;; + x) gl_had_POSIXLY_CORRECT=yes ;; + *) gl_had_POSIXLY_CORRECT= ;; + esac + POSIXLY_CORRECT=1 + export POSIXLY_CORRECT + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[#include <getopt.h> + #include <stddef.h> + #include <string.h> + ]GL_NOCRASH[ + ]], [[ + int result = 0; + + nocrash_init(); + + /* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw, + and fails on Mac OS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5, + OSF/1 5.1, Solaris 10. */ + { + static char conftest[] = "conftest"; + static char plus[] = "-+"; + char *argv[3] = { conftest, plus, NULL }; + opterr = 0; + if (getopt (2, argv, "+a") != '?') + result |= 1; + } + /* This code succeeds on glibc 2.8, mingw, + and fails on Mac OS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11, + IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x. */ + { + static char program[] = "program"; + static char p[] = "-p"; + static char foo[] = "foo"; + static char bar[] = "bar"; + char *argv[] = { program, p, foo, bar, NULL }; + + optind = 1; + if (getopt (4, argv, "p::") != 'p') + result |= 2; + else if (optarg != NULL) + result |= 4; + else if (getopt (4, argv, "p::") != -1) + result |= 6; + else if (optind != 2) + result |= 8; + } + /* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0. */ + { + static char program[] = "program"; + static char foo[] = "foo"; + static char p[] = "-p"; + char *argv[] = { program, foo, p, NULL }; + optind = 0; + if (getopt (3, argv, "-p") != 1) + result |= 16; + else if (getopt (3, argv, "-p") != 'p') + result |= 16; + } + /* This code fails on glibc 2.11. */ + { + static char program[] = "program"; + static char b[] = "-b"; + static char a[] = "-a"; + char *argv[] = { program, b, a, NULL }; + optind = opterr = 0; + if (getopt (3, argv, "+:a:b") != 'b') + result |= 32; + else if (getopt (3, argv, "+:a:b") != ':') + result |= 32; + } + /* This code dumps core on glibc 2.14. */ + { + static char program[] = "program"; + static char w[] = "-W"; + static char dummy[] = "dummy"; + char *argv[] = { program, w, dummy, NULL }; + optind = opterr = 1; + if (getopt (3, argv, "W;") != 'W') + result |= 64; + } + return result; + ]])], + [gl_cv_func_getopt_gnu=yes], + [gl_cv_func_getopt_gnu=no], + [dnl Cross compiling. + dnl Assume the worst, even on glibc platforms. + dnl But obey --enable-cross-guesses. + gl_cv_func_getopt_gnu="$gl_cross_guess_normal" + ]) + case $gl_had_POSIXLY_CORRECT in + exported) ;; + yes) AS_UNSET([POSIXLY_CORRECT]); POSIXLY_CORRECT=1 ;; + *) AS_UNSET([POSIXLY_CORRECT]) ;; + esac + ]) + if test "$gl_cv_func_getopt_gnu" != yes; then + gl_replace_getopt=yes + else + AC_CACHE_CHECK([for working GNU getopt_long function], + [gl_cv_func_getopt_long_gnu], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <getopt.h> + #include <stddef.h> + #include <string.h> + ]], + [[static const struct option long_options[] = + { + { "xtremely-",no_argument, NULL, 1003 }, + { "xtra", no_argument, NULL, 1001 }, + { "xtreme", no_argument, NULL, 1002 }, + { "xtremely", no_argument, NULL, 1003 }, + { NULL, 0, NULL, 0 } + }; + /* This code fails on OpenBSD 5.0. */ + { + static char program[] = "program"; + static char xtremel[] = "--xtremel"; + char *argv[] = { program, xtremel, NULL }; + int option_index; + optind = 1; opterr = 0; + if (getopt_long (2, argv, "", long_options, &option_index) != 1003) + return 1; + } + return 0; + ]])], + [gl_cv_func_getopt_long_gnu=yes], + [gl_cv_func_getopt_long_gnu=no], + [dnl Cross compiling. Guess no on OpenBSD, yes otherwise. + case "$host_os" in + openbsd*) gl_cv_func_getopt_long_gnu="guessing no";; + *) gl_cv_func_getopt_long_gnu="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_getopt_long_gnu" in + *yes) ;; + *) gl_replace_getopt=yes ;; + esac + fi + fi +]) + +AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER], +[ + AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) + if test $ac_cv_header_sys_cdefs_h = yes; then + HAVE_SYS_CDEFS_H=1 + else + HAVE_SYS_CDEFS_H=0 + fi + AC_SUBST([HAVE_SYS_CDEFS_H]) + + AC_DEFINE([__GETOPT_PREFIX], [[rpl_]], + [Define to rpl_ if the getopt replacement functions and variables + should be used.]) + GL_GENERATE_GETOPT_H=true + GL_GENERATE_GETOPT_CDEFS_H=true +]) diff --git a/gl/m4/getpagesize.m4 b/gl/m4/getpagesize.m4 new file mode 100644 index 0000000..79925a7 --- /dev/null +++ b/gl/m4/getpagesize.m4 @@ -0,0 +1,49 @@ +# getpagesize.m4 serial 10 +dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_GETPAGESIZE], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CHECK_FUNC_GETPAGESIZE + if test $gl_cv_func_getpagesize = no; then + HAVE_GETPAGESIZE=0 + AC_CHECK_HEADERS([OS.h]) + if test $ac_cv_header_OS_h = yes; then + HAVE_OS_H=1 + fi + AC_CHECK_HEADERS([sys/param.h]) + if test $ac_cv_header_sys_param_h = yes; then + HAVE_SYS_PARAM_H=1 + fi + fi + case "$host_os" in + mingw*) + REPLACE_GETPAGESIZE=1 + ;; + esac + dnl Also check whether it's declared. + dnl mingw has getpagesize() in libgcc.a but doesn't declare it. + AC_CHECK_DECL([getpagesize], , [HAVE_DECL_GETPAGESIZE=0]) +]) + +dnl Tests whether the function getpagesize() exists. +dnl Sets gl_cv_func_getpagesize. +AC_DEFUN([gl_CHECK_FUNC_GETPAGESIZE], +[ + dnl We can't use AC_CHECK_FUNC here, because getpagesize() is defined as a + dnl static inline function when compiling for Android 4.4 or older. + AC_CACHE_CHECK([for getpagesize], [gl_cv_func_getpagesize], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h>]], + [[return getpagesize();]]) + ], + [gl_cv_func_getpagesize=yes], + [gl_cv_func_getpagesize=no]) + ]) +]) diff --git a/gl/m4/getprogname.m4 b/gl/m4/getprogname.m4 new file mode 100644 index 0000000..2b741f5 --- /dev/null +++ b/gl/m4/getprogname.m4 @@ -0,0 +1,60 @@ +# getprogname.m4 - check for getprogname or replacements for it + +# Copyright (C) 2016-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 8 + +AC_DEFUN([gl_FUNC_GETPROGNAME], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + gl_CHECK_FUNCS_ANDROID([getprogname], [[#include <stdlib.h>]]) + if test $ac_cv_func_getprogname = no; then + HAVE_GETPROGNAME=0 + case "$gl_cv_onwards_func_getprogname" in + future*) REPLACE_GETPROGNAME=1 ;; + esac + fi + AC_CHECK_DECLS([program_invocation_name], + [], + [HAVE_DECL_PROGRAM_INVOCATION_NAME=0], + [[#include <errno.h>]]) +]) + +AC_DEFUN([gl_PREREQ_GETPROGNAME], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([getexecname]) + ac_found=0 + AC_CHECK_DECLS([program_invocation_name], [ac_found=1], [], + [#include <errno.h>]) + AC_CHECK_DECLS([program_invocation_short_name], [ac_found=1], [], + [#include <errno.h>]) + AC_CHECK_DECLS([__argv], [ac_found=1], [], [#include <stdlib.h>]) + + # Incur the cost of this test only if none of the above worked. + if test $ac_found = 0; then + # On OpenBSD 5.1, using the global __progname variable appears to be + # the only way to implement getprogname. + AC_CACHE_CHECK([whether __progname is defined in default libraries], + [gl_cv_var___progname], + [ + gl_cv_var___progname= + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern char *__progname;]], + [[return *__progname;]] + )], + [gl_cv_var___progname=yes] + ) + ] + ) + if test "$gl_cv_var___progname" = yes; then + AC_DEFINE([HAVE_VAR___PROGNAME], 1, + [Define if you have a global __progname variable]) + fi + fi +]) diff --git a/gl/m4/getrandom.m4 b/gl/m4/getrandom.m4 new file mode 100644 index 0000000..7b7f9ce --- /dev/null +++ b/gl/m4/getrandom.m4 @@ -0,0 +1,80 @@ +# getrandom.m4 serial 11 +dnl Copyright 2020-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN([gl_FUNC_GETRANDOM], +[ + AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS]) + gl_CHECK_FUNCS_ANDROID([getrandom], + [[/* Additional includes are needed before <sys/random.h> on uClibc + and Mac OS X. */ + #include <sys/types.h> + #include <stdlib.h> + #include <sys/random.h> + ]]) + if test "$ac_cv_func_getrandom" != yes; then + HAVE_GETRANDOM=0 + case "$gl_cv_onwards_func_getrandom" in + future*) REPLACE_GETRANDOM=1 ;; + esac + else + dnl On Solaris 11.4 the return type is 'int', not 'ssize_t'. + AC_CACHE_CHECK([whether getrandom is compatible with its GNU+BSD signature], + [gl_cv_func_getrandom_ok], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[/* Additional includes are needed before <sys/random.h> on uClibc + and Mac OS X. */ + #include <sys/types.h> + #include <stdlib.h> + #include <sys/random.h> + ssize_t getrandom (void *, size_t, unsigned int); + ]], + [[]]) + ], + [gl_cv_func_getrandom_ok=yes], + [gl_cv_func_getrandom_ok=no]) + ]) + if test $gl_cv_func_getrandom_ok = no; then + REPLACE_GETRANDOM=1 + fi + fi + + case "$host_os" in + mingw*) + AC_CHECK_HEADERS([bcrypt.h], [], [], + [[#include <windows.h> + ]]) + AC_CACHE_CHECK([whether the bcrypt library is guaranteed to be present], + [gl_cv_lib_assume_bcrypt], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <windows.h>]], + [[#if !(_WIN32_WINNT >= _WIN32_WINNT_WIN7) + cannot assume it + #endif + ]]) + ], + [gl_cv_lib_assume_bcrypt=yes], + [gl_cv_lib_assume_bcrypt=no]) + ]) + if test $gl_cv_lib_assume_bcrypt = yes; then + AC_DEFINE([HAVE_LIB_BCRYPT], [1], + [Define to 1 if the bcrypt library is guaranteed to be present.]) + GETRANDOM_LIB='-lbcrypt' + else + GETRANDOM_LIB='-ladvapi32' + fi + ;; + *) + GETRANDOM_LIB= ;; + esac + AC_SUBST([GETRANDOM_LIB]) + dnl For backward compatibility. + LIB_GETRANDOM="$GETRANDOM_LIB" + AC_SUBST([LIB_GETRANDOM]) +]) diff --git a/gl/m4/gettext.m4 b/gl/m4/gettext.m4 new file mode 100644 index 0000000..8d1f066 --- /dev/null +++ b/gl/m4/gettext.m4 @@ -0,0 +1,401 @@ +# gettext.m4 serial 66 (gettext-0.18.2) +dnl Copyright (C) 1995-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. +dnl Bruno Haible <haible@clisp.cons.org>, 2000-2006, 2008-2010. + +dnl Macro to add for using GNU gettext. + +dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). +dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The +dnl default (if it is not specified or empty) is 'no-libtool'. +dnl INTLSYMBOL should be 'external' for packages with no intl directory, +dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory. +dnl If INTLSYMBOL is 'use-libtool', then a libtool library +dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, +dnl depending on --{enable,disable}-{shared,static} and on the presence of +dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library +dnl $(top_builddir)/intl/libintl.a will be created. +dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext +dnl implementations (in libc or libintl) without the ngettext() function +dnl will be ignored. If NEEDSYMBOL is specified and is +dnl 'need-formatstring-macros', then GNU gettext implementations that don't +dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored. +dnl INTLDIR is used to find the intl libraries. If empty, +dnl the value '$(top_builddir)/intl/' is used. +dnl +dnl The result of the configuration is one of three cases: +dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled +dnl and used. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 2) GNU gettext has been found in the system's C library. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 3) No internationalization, always use English msgid. +dnl Catalog format: none +dnl Catalog extension: none +dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. +dnl The use of .gmo is historical (it was needed to avoid overwriting the +dnl GNU format catalogs when building on a platform with an X/Open gettext), +dnl but we keep it in order not to force irrelevant filename changes on the +dnl maintainers. +dnl +AC_DEFUN([AM_GNU_GETTEXT], +[ + dnl Argument checking. + ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], , + [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT +])])])])]) + ifelse(ifelse([$1], [], [old])[]ifelse([$1], [no-libtool], [old]), [old], + [AC_DIAGNOSE([obsolete], [Use of AM_GNU_GETTEXT without [external] argument is deprecated.])]) + ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], , + [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT +])])])]) + define([gt_included_intl], + ifelse([$1], [external], + ifdef([AM_GNU_GETTEXT_][INTL_SUBDIR], [yes], [no]), + [yes])) + define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], [])) + gt_NEEDS_INIT + AM_GNU_GETTEXT_NEED([$2]) + + AC_REQUIRE([AM_PO_SUBDIRS])dnl + ifelse(gt_included_intl, yes, [ + AC_REQUIRE([AM_INTL_SUBDIR])dnl + ]) + + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Sometimes libintl requires libiconv, so first search for libiconv. + dnl Ideally we would do this search only after the + dnl if test "$USE_NLS" = "yes"; then + dnl if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then + dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT + dnl the configure script would need to contain the same shell code + dnl again, outside any 'if'. There are two solutions: + dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. + dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. + dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not + dnl documented, we avoid it. + ifelse(gt_included_intl, yes, , [ + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + ]) + + dnl Sometimes, on Mac OS X, libintl requires linking with CoreFoundation. + gt_INTL_MACOSX + + dnl Set USE_NLS. + AC_REQUIRE([AM_NLS]) + + ifelse(gt_included_intl, yes, [ + BUILD_INCLUDED_LIBINTL=no + USE_INCLUDED_LIBINTL=no + ]) + LIBINTL= + LTLIBINTL= + POSUB= + + dnl Add a version number to the cache macros. + case " $gt_needs " in + *" need-formatstring-macros "*) gt_api_version=3 ;; + *" need-ngettext "*) gt_api_version=2 ;; + *) gt_api_version=1 ;; + esac + gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc" + gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl" + + dnl If we use NLS figure out what method + if test "$USE_NLS" = "yes"; then + gt_use_preinstalled_gnugettext=no + ifelse(gt_included_intl, yes, [ + AC_MSG_CHECKING([whether included gettext is requested]) + AC_ARG_WITH([included-gettext], + [ --with-included-gettext use the GNU gettext library included here], + nls_cv_force_use_gnu_gettext=$withval, + nls_cv_force_use_gnu_gettext=no) + AC_MSG_RESULT([$nls_cv_force_use_gnu_gettext]) + + nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" + if test "$nls_cv_force_use_gnu_gettext" != "yes"; then + ]) + dnl User does not insist on using GNU NLS library. Figure out what + dnl to use. If GNU gettext is available we use this. Else we have + dnl to fall back to GNU NLS library. + + if test $gt_api_version -ge 3; then + gt_revision_test_code=' +#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +' + else + gt_revision_test_code= + fi + if test $gt_api_version -ge 2; then + gt_expression_test_code=' + * ngettext ("", "", 0)' + else + gt_expression_test_code= + fi + + AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <libintl.h> +$gt_revision_test_code +extern int _nl_msg_cat_cntr; +extern int *_nl_domain_bindings; + ]], + [[ +bindtextdomain ("", ""); +return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_domain_bindings + ]])], + [eval "$gt_func_gnugettext_libc=yes"], + [eval "$gt_func_gnugettext_libc=no"])]) + + if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then + dnl Sometimes libintl requires libiconv, so first search for libiconv. + ifelse(gt_included_intl, yes, , [ + AM_ICONV_LINK + ]) + dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL + dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) + dnl because that would add "-liconv" to LIBINTL and LTLIBINTL + dnl even if libiconv doesn't exist. + AC_LIB_LINKFLAGS_BODY([intl]) + AC_CACHE_CHECK([for GNU gettext in libintl], + [$gt_func_gnugettext_libintl], + [gt_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS $INCINTL" + gt_save_LIBS="$LIBS" + LIBS="$LIBS $LIBINTL" + dnl Now see whether libintl exists and does not depend on libiconv. + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <libintl.h> +$gt_revision_test_code +extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias (const char *); + ]], + [[ +bindtextdomain ("", ""); +return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("") + ]])], + [eval "$gt_func_gnugettext_libintl=yes"], + [eval "$gt_func_gnugettext_libintl=no"]) + dnl Now see whether libintl exists and depends on libiconv. + if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then + LIBS="$LIBS $LIBICONV" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <libintl.h> +$gt_revision_test_code +extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias (const char *); + ]], + [[ +bindtextdomain ("", ""); +return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_alias ("") + ]])], + [LIBINTL="$LIBINTL $LIBICONV" + LTLIBINTL="$LTLIBINTL $LTLIBICONV" + eval "$gt_func_gnugettext_libintl=yes" + ]) + fi + CPPFLAGS="$gt_save_CPPFLAGS" + LIBS="$gt_save_LIBS"]) + fi + + dnl If an already present or preinstalled GNU gettext() is found, + dnl use it. But if this macro is used in GNU gettext, and GNU + dnl gettext is already preinstalled in libintl, we update this + dnl libintl. (Cf. the install rule in intl/Makefile.in.) + if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \ + || { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \ + && test "$PACKAGE" != gettext-runtime \ + && test "$PACKAGE" != gettext-tools; }; then + gt_use_preinstalled_gnugettext=yes + else + dnl Reset the values set by searching for libintl. + LIBINTL= + LTLIBINTL= + INCINTL= + fi + + ifelse(gt_included_intl, yes, [ + if test "$gt_use_preinstalled_gnugettext" != "yes"; then + dnl GNU gettext is not found in the C library. + dnl Fall back on included GNU gettext library. + nls_cv_use_gnu_gettext=yes + fi + fi + + if test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions used to generate GNU NLS library. + BUILD_INCLUDED_LIBINTL=yes + USE_INCLUDED_LIBINTL=yes + LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV $LIBTHREAD" + LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV $LTLIBTHREAD" + LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` + fi + + CATOBJEXT= + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions to use GNU gettext tools. + CATOBJEXT=.gmo + fi + ]) + + if test -n "$INTL_MACOSX_LIBS"; then + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Some extra flags are needed during linking. + LIBINTL="$LIBINTL $INTL_MACOSX_LIBS" + LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS" + fi + fi + + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + AC_DEFINE([ENABLE_NLS], [1], + [Define to 1 if translation of program messages to the user's native language + is requested.]) + else + USE_NLS=no + fi + fi + + AC_MSG_CHECKING([whether to use NLS]) + AC_MSG_RESULT([$USE_NLS]) + if test "$USE_NLS" = "yes"; then + AC_MSG_CHECKING([where the gettext function comes from]) + if test "$gt_use_preinstalled_gnugettext" = "yes"; then + if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then + gt_source="external libintl" + else + gt_source="libc" + fi + else + gt_source="included intl directory" + fi + AC_MSG_RESULT([$gt_source]) + fi + + if test "$USE_NLS" = "yes"; then + + if test "$gt_use_preinstalled_gnugettext" = "yes"; then + if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then + AC_MSG_CHECKING([how to link with libintl]) + AC_MSG_RESULT([$LIBINTL]) + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) + fi + + dnl For backward compatibility. Some packages may be using this. + AC_DEFINE([HAVE_GETTEXT], [1], + [Define if the GNU gettext() function is already present or preinstalled.]) + AC_DEFINE([HAVE_DCGETTEXT], [1], + [Define if the GNU dcgettext() function is already present or preinstalled.]) + fi + + dnl We need to process the po/ directory. + POSUB=po + fi + + ifelse(gt_included_intl, yes, [ + dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL + dnl to 'yes' because some of the testsuite requires it. + if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then + BUILD_INCLUDED_LIBINTL=yes + fi + + dnl Make all variables we use known to autoconf. + AC_SUBST([BUILD_INCLUDED_LIBINTL]) + AC_SUBST([USE_INCLUDED_LIBINTL]) + AC_SUBST([CATOBJEXT]) + + dnl For backward compatibility. Some configure.ins may be using this. + nls_cv_header_intl= + nls_cv_header_libgt= + + dnl For backward compatibility. Some Makefiles may be using this. + DATADIRNAME=share + AC_SUBST([DATADIRNAME]) + + dnl For backward compatibility. Some Makefiles may be using this. + INSTOBJEXT=.mo + AC_SUBST([INSTOBJEXT]) + + dnl For backward compatibility. Some Makefiles may be using this. + GENCAT=gencat + AC_SUBST([GENCAT]) + + dnl For backward compatibility. Some Makefiles may be using this. + INTLOBJS= + if test "$USE_INCLUDED_LIBINTL" = yes; then + INTLOBJS="\$(GETTOBJS)" + fi + AC_SUBST([INTLOBJS]) + + dnl Enable libtool support if the surrounding package wishes it. + INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix + AC_SUBST([INTL_LIBTOOL_SUFFIX_PREFIX]) + ]) + + dnl For backward compatibility. Some Makefiles may be using this. + INTLLIBS="$LIBINTL" + AC_SUBST([INTLLIBS]) + + dnl Make all documented variables known to autoconf. + AC_SUBST([LIBINTL]) + AC_SUBST([LTLIBINTL]) + AC_SUBST([POSUB]) +]) + + +dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized. +m4_define([gt_NEEDS_INIT], +[ + m4_divert_text([DEFAULTS], [gt_needs=]) + m4_define([gt_NEEDS_INIT], []) +]) + + +dnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL]) +AC_DEFUN([AM_GNU_GETTEXT_NEED], +[ + m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"]) +]) + + +dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) +AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) diff --git a/gl/m4/gettime.m4 b/gl/m4/gettime.m4 new file mode 100644 index 0000000..ec1f97e --- /dev/null +++ b/gl/m4/gettime.m4 @@ -0,0 +1,68 @@ +# gettime.m4 serial 14 +dnl Copyright (C) 2002, 2004-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_GETTIME], +[ + dnl Prerequisites of lib/gettime.c. + AC_REQUIRE([gl_CLOCK_TIME]) + AC_REQUIRE([gl_TIMESPEC]) + + AC_REQUIRE([gl_CHECK_FUNC_TIMESPEC_GET]) + if test $gl_cv_func_timespec_get = yes; then + AC_DEFINE([HAVE_TIMESPEC_GET], [1], + [Define if you have the timespec_get function.]) + fi +]) + +dnl Tests whether the function timespec_get exists. +dnl Sets gl_cv_func_timespec_get and gl_cv_onwards_func_timespec_get. +AC_DEFUN([gl_CHECK_FUNC_TIMESPEC_GET], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + + dnl Persuade OpenBSD <time.h> to declare timespec_get(). + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + dnl We can't use AC_CHECK_FUNC here, because timespec_get() is defined as a + dnl static inline function in <time.h> on MSVC 14. + dnl But at the same time, we need to notice a missing declaration, like + dnl gl_CHECK_FUNCS_ANDROID does. + AC_CHECK_DECL([timespec_get], , , [[#include <time.h>]]) + AC_CACHE_CHECK([for timespec_get], [gl_cv_onwards_func_timespec_get], + [if test $ac_cv_have_decl_timespec_get = yes; then + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + struct timespec ts; + ]], + [[return timespec_get (&ts, 0);]]) + ], + [gl_cv_onwards_func_timespec_get=yes], + [gl_cv_onwards_func_timespec_get=no]) + else + gl_cv_onwards_func_timespec_get=no + fi + case "$host_os" in + linux*-android*) + if test $gl_cv_onwards_func_timespec_get = no; then + gl_cv_onwards_func_timespec_get='future OS version' + fi + ;; + esac + ]) + case "$gl_cv_onwards_func_timespec_get" in + future*) gl_cv_func_timespec_get=no ;; + *) gl_cv_func_timespec_get=$gl_cv_onwards_func_timespec_get ;; + esac +]) + +AC_DEFUN([gl_GETTIME_RES], +[ + dnl Prerequisites of lib/gettime-res.c. + AC_REQUIRE([gl_CLOCK_TIME]) + AC_REQUIRE([gl_TIMESPEC]) + AC_CHECK_FUNCS_ONCE([timespec_getres]) +]) diff --git a/gl/m4/gettimeofday.m4 b/gl/m4/gettimeofday.m4 new file mode 100644 index 0000000..5051d61 --- /dev/null +++ b/gl/m4/gettimeofday.m4 @@ -0,0 +1,69 @@ +# serial 29 + +# Copyright (C) 2001-2003, 2005, 2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering. + +AC_DEFUN([gl_FUNC_GETTIMEOFDAY], +[ + AC_REQUIRE([gl_SYS_TIME_H_DEFAULTS]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_SYS_TIME_H]) + AC_CHECK_FUNCS_ONCE([gettimeofday]) + + gl_gettimeofday_timezone=void + if test $ac_cv_func_gettimeofday != yes; then + HAVE_GETTIMEOFDAY=0 + else + AC_CACHE_CHECK([for gettimeofday with POSIX signature], + [gl_cv_func_gettimeofday_posix_signature], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/time.h> + struct timeval c; + int gettimeofday (struct timeval *restrict, void *restrict); + ]], + [[/* glibc uses struct timezone * rather than the POSIX void * + if _GNU_SOURCE is defined. However, since the only portable + use of gettimeofday uses NULL as the second parameter, and + since the glibc definition is actually more typesafe, it is + not worth wrapping this to get a compliant signature. */ + int (*f) (struct timeval *restrict, void *restrict) + = gettimeofday; + int x = f (&c, 0); + return !(x | c.tv_sec | c.tv_usec); + ]])], + [gl_cv_func_gettimeofday_posix_signature=yes], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/time.h> +int gettimeofday (struct timeval *restrict, struct timezone *restrict); + ]])], + [gl_cv_func_gettimeofday_posix_signature=almost], + [gl_cv_func_gettimeofday_posix_signature=no])])]) + if test $gl_cv_func_gettimeofday_posix_signature = almost; then + gl_gettimeofday_timezone='struct timezone' + elif test $gl_cv_func_gettimeofday_posix_signature != yes; then + REPLACE_GETTIMEOFDAY=1 + fi + dnl If we override 'struct timeval', we also have to override gettimeofday. + if test $REPLACE_STRUCT_TIMEVAL = 1; then + REPLACE_GETTIMEOFDAY=1 + fi + dnl On mingw, the original gettimeofday has only a precision of 15.6 + dnl milliseconds. So override it. + case "$host_os" in + mingw*) REPLACE_GETTIMEOFDAY=1 ;; + esac + fi + AC_DEFINE_UNQUOTED([GETTIMEOFDAY_TIMEZONE], [$gl_gettimeofday_timezone], + [Define this to 'void' or 'struct timezone' to match the system's + declaration of the second argument to gettimeofday.]) +]) + +# Prerequisites of lib/gettimeofday.c. +AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [:]) diff --git a/gl/m4/glibc2.m4 b/gl/m4/glibc2.m4 new file mode 100644 index 0000000..0e50682 --- /dev/null +++ b/gl/m4/glibc2.m4 @@ -0,0 +1,31 @@ +# glibc2.m4 serial 3 +dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2013 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Test for the GNU C Library, version 2.0 or newer. +# From Bruno Haible. + +AC_DEFUN([gt_GLIBC2], + [ + AC_CACHE_CHECK([whether we are using the GNU C Library 2 or newer], + [ac_cv_gnu_library_2], + [AC_EGREP_CPP([Lucky GNU user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) && !defined __UCLIBC__ + Lucky GNU user + #endif +#endif + ], + [ac_cv_gnu_library_2=yes], + [ac_cv_gnu_library_2=no]) + ] + ) + AC_SUBST([GLIBC2]) + GLIBC2="$ac_cv_gnu_library_2" + ] +) diff --git a/gl/m4/glob.m4 b/gl/m4/glob.m4 new file mode 100644 index 0000000..62be6a3 --- /dev/null +++ b/gl/m4/glob.m4 @@ -0,0 +1,134 @@ +# glob.m4 serial 30 +dnl Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# The glob module assumes you want GNU glob, with glob_pattern_p etc, +# rather than vanilla POSIX glob. This means your code should +# always include <glob.h> for the glob prototypes. + +AC_DEFUN([gl_GLOB], +[ + AC_REQUIRE([gl_GLOB_H]) + + AC_CHECK_FUNCS_ONCE([glob_pattern_p]) + gl_CHECK_FUNCS_ANDROID([glob], [[#include <glob.h>]]) + if test $ac_cv_func_glob = no; then + HAVE_GLOB=0 + case "$gl_cv_onwards_func_glob" in + future*) REPLACE_GLOB=1 ;; + esac + else + + AC_CACHE_CHECK([for GNU glob interface version 1 or 2], + [gl_cv_gnu_glob_interface_version_1_2], +[ AC_COMPILE_IFELSE([AC_LANG_SOURCE( +[[#include <gnu-versions.h> +char a[_GNU_GLOB_INTERFACE_VERSION == 1 || _GNU_GLOB_INTERFACE_VERSION == 2 ? 1 : -1];]])], + [gl_cv_gnu_glob_interface_version_1_2=yes], + [gl_cv_gnu_glob_interface_version_1_2=no])]) + if test "$gl_cv_gnu_glob_interface_version_1_2" = "no"; then + REPLACE_GLOB=1 + fi + + if test $REPLACE_GLOB = 0; then + AC_CACHE_CHECK([whether glob lists broken symlinks], + [gl_cv_glob_lists_symlinks], + [if test $cross_compiling != yes; then + if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then + gl_cv_glob_lists_symlinks=maybe + else + # If we can't make a symlink, then we cannot test this issue. Be + # pessimistic about this. + gl_cv_glob_lists_symlinks=no + fi + if test $gl_cv_glob_lists_symlinks = maybe; then + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + #include <glob.h>]], + [[glob_t found; + if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) + return 1; + globfree (&found); + ]])], + [gl_cv_glob_lists_symlinks=yes], + [gl_cv_glob_lists_symlinks=no], + [dnl We don't get here. + : + ]) + fi + rm -f conf$$-globtest + else + gl_cv_glob_lists_symlinks="$gl_cross_guess_normal" + fi + ]) + case "$gl_cv_glob_lists_symlinks" in + *yes) ;; + *) REPLACE_GLOB=1 ;; + esac + fi + + if test $REPLACE_GLOB = 0; then + AC_CACHE_CHECK([whether glob NOTDIR*/ omits symlink to nondir], + [gl_cv_glob_omit_nondir_symlinks], + [if test $cross_compiling != yes; then + if ln -s conf$$-file conf$$-globtest 2>/dev/null && touch conf$$-file + then + gl_cv_glob_omit_nondir_symlinks=maybe + else + # If we can't make a symlink, then we cannot test this issue. Be + # pessimistic about this. + gl_cv_glob_omit_nondir_symlinks=no + fi + if test $gl_cv_glob_omit_nondir_symlinks = maybe; then + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + #include <glob.h>]], + [[glob_t found; + if (glob ("conf*-globtest/", 0, NULL, &found) != GLOB_NOMATCH) + return 1; + globfree (&found); + ]])], + [gl_cv_glob_omit_nondir_symlinks=yes], + [gl_cv_glob_omit_nondir_symlinks=no], + [dnl We don't get here. + : + ]) + fi + rm -f conf$$-file conf$$-globtest + else + gl_cv_glob_omit_nondir_symlinks="$gl_cross_guess_normal" + fi + ]) + case "$gl_cv_glob_omit_nondir_symlinks" in + *yes) ;; + *) REPLACE_GLOB=1 ;; + esac + fi + + fi + + if test $ac_cv_func_glob_pattern_p = no; then + HAVE_GLOB_PATTERN_P=0 + else + if test $REPLACE_GLOB = 1; then + REPLACE_GLOB_PATTERN_P=1 + fi + fi + + if test $HAVE_GLOB = 0 || test $REPLACE_GLOB = 1; then + gl_REPLACE_GLOB_H + fi +]) + +# Prerequisites of lib/glob.c and lib/globfree.c. +AC_DEFUN([gl_PREREQ_GLOB], +[ + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + gl_CHECK_FUNCS_ANDROID([getlogin_r], [[#include <unistd.h>]]) + gl_CHECK_FUNCS_ANDROID([getpwnam_r], [[#include <pwd.h>]]) +]) diff --git a/gl/m4/glob_h.m4 b/gl/m4/glob_h.m4 new file mode 100644 index 0000000..3ab5031 --- /dev/null +++ b/gl/m4/glob_h.m4 @@ -0,0 +1,84 @@ +# glob_h.m4 serial 9 +dnl Copyright (C) 2018-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN_ONCE([gl_GLOB_H], +[ + AC_REQUIRE([gl_GLOB_H_DEFAULTS]) + m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_CHECK_HEADERS_ONCE([glob.h]) + gl_CHECK_NEXT_HEADERS([glob.h]) + + if test $ac_cv_header_glob_h = yes; then + HAVE_GLOB_H=1 + else + HAVE_GLOB_H=0 + fi + AC_SUBST([HAVE_GLOB_H]) + + m4_ifdef([gl_POSIXCHECK], + [GL_GENERATE_GLOB_H=true], + [GL_GENERATE_GLOB_H=false + if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then + dnl Override <glob.h> always, to support the C++ GNULIB_NAMESPACE. + GL_GENERATE_GLOB_H=true + else + if test $ac_cv_header_glob_h != yes; then + dnl Provide a substitute <glob.h> file. + GL_GENERATE_GLOB_H=true + fi + fi + ]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <glob.h> + ]], + [glob globfree glob_pattern_p]) +]) + +dnl Unconditionally enables the replacement of <glob.h>. +AC_DEFUN([gl_REPLACE_GLOB_H], +[ + gl_GLOB_H_REQUIRE_DEFAULTS + GL_GENERATE_GLOB_H=true +]) + +# gl_GLOB_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_GLOB_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_GLOB_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_GLOB_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_GLOB_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GLOB]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_GLOB_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_GLOB_H_DEFAULTS]) +]) + +AC_DEFUN([gl_GLOB_H_DEFAULTS], +[ + dnl Assume POSIX and GNU behavior unless another module says otherwise. + HAVE_GLOB=1; AC_SUBST([HAVE_GLOB]) + HAVE_GLOB_PATTERN_P=1; AC_SUBST([HAVE_GLOB_PATTERN_P]) + REPLACE_GLOB=0; AC_SUBST([REPLACE_GLOB]) + REPLACE_GLOB_PATTERN_P=0; AC_SUBST([REPLACE_GLOB_PATTERN_P]) +]) diff --git a/gl/m4/gnulib-common.m4 b/gl/m4/gnulib-common.m4 new file mode 100644 index 0000000..2426eb6 --- /dev/null +++ b/gl/m4/gnulib-common.m4 @@ -0,0 +1,1434 @@ +# gnulib-common.m4 serial 87 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.62]) + +# gl_COMMON +# is expanded unconditionally through gnulib-tool magic. +AC_DEFUN([gl_COMMON], [ + dnl Use AC_REQUIRE here, so that the code is expanded once only. + AC_REQUIRE([gl_00GNULIB]) + AC_REQUIRE([gl_COMMON_BODY]) + AC_REQUIRE([gl_ZZGNULIB]) +]) +AC_DEFUN([gl_COMMON_BODY], [ + AH_VERBATIM([0witness], +[/* Witness that <config.h> has been included. */ +#define _GL_CONFIG_H_INCLUDED 1 +]) + AH_VERBATIM([_GL_GNUC_PREREQ], +[/* True if the compiler says it groks GNU C version MAJOR.MINOR. */ +#if defined __GNUC__ && defined __GNUC_MINOR__ +# define _GL_GNUC_PREREQ(major, minor) \ + ((major) < __GNUC__ + ((minor) <= __GNUC_MINOR__)) +#else +# define _GL_GNUC_PREREQ(major, minor) 0 +#endif +]) + AH_VERBATIM([_Noreturn], +[/* The _Noreturn keyword of C11. */ +#ifndef _Noreturn +# if (defined __cplusplus \ + && ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \ + || (defined _MSC_VER && 1900 <= _MSC_VER)) \ + && 0) + /* [[noreturn]] is not practically usable, because with it the syntax + extern _Noreturn void func (...); + would not be valid; such a declaration would only be valid with 'extern' + and '_Noreturn' swapped, or without the 'extern' keyword. However, some + AIX system header files and several gnulib header files use precisely + this syntax with 'extern'. */ +# define _Noreturn [[noreturn]] +# elif (defined __clang__ && __clang_major__ < 16 \ + && defined _GL_WORK_AROUND_LLVM_BUG_59792) + /* Compile with -D_GL_WORK_AROUND_LLVM_BUG_59792 to work around + that rare LLVM bug, though you may get many false-alarm warnings. */ +# define _Noreturn +# elif ((!defined __cplusplus || defined __clang__) \ + && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ + || (!defined __STRICT_ANSI__ \ + && (_GL_GNUC_PREREQ (4, 7) \ + || (defined __apple_build_version__ \ + ? 6000000 <= __apple_build_version__ \ + : 3 < __clang_major__ + (5 <= __clang_minor__)))))) + /* _Noreturn works as-is. */ +# elif _GL_GNUC_PREREQ (2, 8) || defined __clang__ || 0x5110 <= __SUNPRO_C +# define _Noreturn __attribute__ ((__noreturn__)) +# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) +# define _Noreturn __declspec (noreturn) +# else +# define _Noreturn +# endif +#endif +]) + AH_VERBATIM([isoc99_inline], +[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports + the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of + earlier versions), but does not display it by setting __GNUC_STDC_INLINE__. + __APPLE__ && __MACH__ test for Mac OS X. + __APPLE_CC__ tests for the Apple compiler and its version. + __STDC_VERSION__ tests for the C99 mode. */ +#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__ +# define __GNUC_STDC_INLINE__ 1 +#endif]) + AH_VERBATIM([attribute], +[/* Attributes. */ +#if (defined __has_attribute \ + && (!defined __clang_minor__ \ + || (defined __apple_build_version__ \ + ? 6000000 <= __apple_build_version__ \ + : 5 <= __clang_major__))) +# define _GL_HAS_ATTRIBUTE(attr) __has_attribute (__##attr##__) +#else +# define _GL_HAS_ATTRIBUTE(attr) _GL_ATTR_##attr +# define _GL_ATTR_alloc_size _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_always_inline _GL_GNUC_PREREQ (3, 2) +# define _GL_ATTR_artificial _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_cold _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_const _GL_GNUC_PREREQ (2, 95) +# define _GL_ATTR_deprecated _GL_GNUC_PREREQ (3, 1) +# define _GL_ATTR_diagnose_if 0 +# define _GL_ATTR_error _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_externally_visible _GL_GNUC_PREREQ (4, 1) +# define _GL_ATTR_fallthrough _GL_GNUC_PREREQ (7, 0) +# define _GL_ATTR_format _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_leaf _GL_GNUC_PREREQ (4, 6) +# define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0) +# ifdef _ICC +# define _GL_ATTR_may_alias 0 +# else +# define _GL_ATTR_may_alias _GL_GNUC_PREREQ (3, 3) +# endif +# define _GL_ATTR_noinline _GL_GNUC_PREREQ (3, 1) +# define _GL_ATTR_nonnull _GL_GNUC_PREREQ (3, 3) +# define _GL_ATTR_nonstring _GL_GNUC_PREREQ (8, 0) +# define _GL_ATTR_nothrow _GL_GNUC_PREREQ (3, 3) +# define _GL_ATTR_packed _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_pure _GL_GNUC_PREREQ (2, 96) +# define _GL_ATTR_returns_nonnull _GL_GNUC_PREREQ (4, 9) +# define _GL_ATTR_sentinel _GL_GNUC_PREREQ (4, 0) +# define _GL_ATTR_unused _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4) +#endif + +/* Disable GCC -Wpedantic if using __has_c_attribute and this is not C23+. */ +#if (defined __has_c_attribute && _GL_GNUC_PREREQ (4, 6) \ + && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) <= 201710) +# pragma GCC diagnostic ignored "-Wpedantic" +#endif + +/* Define if, in a function declaration, the attributes in bracket syntax + [[...]] must come before the attributes in __attribute__((...)) syntax. + If this is defined, it is best to avoid the bracket syntax, so that the + various _GL_ATTRIBUTE_* can be cumulated on the same declaration in any + order. */ +#ifdef __cplusplus +# if defined __clang__ +# define _GL_BRACKET_BEFORE_ATTRIBUTE 1 +# endif +#else +# if defined __GNUC__ && !defined __clang__ +# define _GL_BRACKET_BEFORE_ATTRIBUTE 1 +# endif +#endif +]dnl There is no _GL_ATTRIBUTE_ALIGNED; use stdalign's alignas instead. +[ +/* _GL_ATTRIBUTE_ALLOC_SIZE ((N)) declares that the Nth argument of the function + is the size of the returned memory block. + _GL_ATTRIBUTE_ALLOC_SIZE ((M, N)) declares that the Mth argument multiplied + by the Nth argument of the function is the size of the returned memory block. + */ +/* Applies to: function, pointer to function, function types. */ +#ifndef _GL_ATTRIBUTE_ALLOC_SIZE +# if _GL_HAS_ATTRIBUTE (alloc_size) +# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args)) +# else +# define _GL_ATTRIBUTE_ALLOC_SIZE(args) +# endif +#endif + +/* _GL_ATTRIBUTE_ALWAYS_INLINE tells that the compiler should always inline the + function and report an error if it cannot do so. */ +/* Applies to: function. */ +#ifndef _GL_ATTRIBUTE_ALWAYS_INLINE +# if _GL_HAS_ATTRIBUTE (always_inline) +# define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__)) +# else +# define _GL_ATTRIBUTE_ALWAYS_INLINE +# endif +#endif + +/* _GL_ATTRIBUTE_ARTIFICIAL declares that the function is not important to show + in stack traces when debugging. The compiler should omit the function from + stack traces. */ +/* Applies to: function. */ +#ifndef _GL_ATTRIBUTE_ARTIFICIAL +# if _GL_HAS_ATTRIBUTE (artificial) +# define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__)) +# else +# define _GL_ATTRIBUTE_ARTIFICIAL +# endif +#endif + +/* _GL_ATTRIBUTE_COLD declares that the function is rarely executed. */ +/* Applies to: functions. */ +/* Avoid __attribute__ ((cold)) on MinGW; see thread starting at + <https://lists.gnu.org/r/emacs-devel/2019-04/msg01152.html>. + Also, Oracle Studio 12.6 requires 'cold' not '__cold__'. */ +#ifndef _GL_ATTRIBUTE_COLD +# if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__ +# ifndef __SUNPRO_C +# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) +# else +# define _GL_ATTRIBUTE_COLD __attribute__ ((cold)) +# endif +# else +# define _GL_ATTRIBUTE_COLD +# endif +#endif + +/* _GL_ATTRIBUTE_CONST declares that it is OK for a compiler to omit duplicate + calls to the function with the same arguments. + This attribute is safe for a function that neither depends on nor affects + observable state, and always returns exactly once - e.g., does not loop + forever, and does not call longjmp. + (This attribute is stricter than _GL_ATTRIBUTE_PURE.) */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_CONST +# if _GL_HAS_ATTRIBUTE (const) +# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__)) +# else +# define _GL_ATTRIBUTE_CONST +# endif +#endif + +/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers + that can be freed by passing them as the Ith argument to the + function F. + _GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that + can be freed via 'free'; it can be used only after declaring 'free'. */ +/* Applies to: functions. Cannot be used on inline functions. */ +#ifndef _GL_ATTRIBUTE_DEALLOC +# if _GL_GNUC_PREREQ (11, 0) +# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i))) +# else +# define _GL_ATTRIBUTE_DEALLOC(f, i) +# endif +#endif +/* If gnulib's <string.h> or <wchar.h> has already defined this macro, continue + to use this earlier definition, since <stdlib.h> may not have been included + yet. */ +#ifndef _GL_ATTRIBUTE_DEALLOC_FREE +# if defined __cplusplus && defined __GNUC__ && !defined __clang__ +/* Work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108231> */ +# define _GL_ATTRIBUTE_DEALLOC_FREE \ + _GL_ATTRIBUTE_DEALLOC ((void (*) (void *)) free, 1) +# else +# define _GL_ATTRIBUTE_DEALLOC_FREE \ + _GL_ATTRIBUTE_DEALLOC (free, 1) +# endif +#endif + +/* _GL_ATTRIBUTE_DEPRECATED: Declares that an entity is deprecated. + The compiler may warn if the entity is used. */ +/* Applies to: + - function, variable, + - struct, union, struct/union member, + - enumeration, enumeration item, + - typedef, + in C++ also: namespace, class, template specialization. */ +#ifndef _GL_ATTRIBUTE_DEPRECATED +# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE +# ifdef __has_c_attribute +# if __has_c_attribute (__deprecated__) +# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]] +# endif +# endif +# endif +# if !defined _GL_ATTRIBUTE_DEPRECATED && _GL_HAS_ATTRIBUTE (deprecated) +# define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__)) +# endif +# ifndef _GL_ATTRIBUTE_DEPRECATED +# define _GL_ATTRIBUTE_DEPRECATED +# endif +#endif + +/* _GL_ATTRIBUTE_ERROR(msg) requests an error if a function is called and + the function call is not optimized away. + _GL_ATTRIBUTE_WARNING(msg) requests a warning if a function is called and + the function call is not optimized away. */ +/* Applies to: functions. */ +#if !(defined _GL_ATTRIBUTE_ERROR && defined _GL_ATTRIBUTE_WARNING) +# if _GL_HAS_ATTRIBUTE (error) +# define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__error__ (msg))) +# define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__warning__ (msg))) +# elif _GL_HAS_ATTRIBUTE (diagnose_if) +# define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__diagnose_if__ (1, msg, "error"))) +# define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__diagnose_if__ (1, msg, "warning"))) +# else +# define _GL_ATTRIBUTE_ERROR(msg) +# define _GL_ATTRIBUTE_WARNING(msg) +# endif +#endif + +/* _GL_ATTRIBUTE_EXTERNALLY_VISIBLE declares that the entity should remain + visible to debuggers etc., even with '-fwhole-program'. */ +/* Applies to: functions, variables. */ +#ifndef _GL_ATTRIBUTE_EXTERNALLY_VISIBLE +# if _GL_HAS_ATTRIBUTE (externally_visible) +# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible)) +# else +# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE +# endif +#endif + +/* _GL_ATTRIBUTE_FALLTHROUGH declares that it is not a programming mistake if + the control flow falls through to the immediately following 'case' or + 'default' label. The compiler should not warn in this case. */ +/* Applies to: Empty statement (;), inside a 'switch' statement. */ +/* Always expands to something. */ +#ifndef _GL_ATTRIBUTE_FALLTHROUGH +# ifdef __has_c_attribute +# if __has_c_attribute (__fallthrough__) +# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]] +# endif +# endif +# if !defined _GL_ATTRIBUTE_FALLTHROUGH && _GL_HAS_ATTRIBUTE (fallthrough) +# define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__)) +# endif +# ifndef _GL_ATTRIBUTE_FALLTHROUGH +# define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0) +# endif +#endif + +/* _GL_ATTRIBUTE_FORMAT ((ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK)) + declares that the STRING-INDEXth function argument is a format string of + style ARCHETYPE, which is one of: + printf, gnu_printf + scanf, gnu_scanf, + strftime, gnu_strftime, + strfmon, + or the same thing prefixed and suffixed with '__'. + If FIRST-TO-CHECK is not 0, arguments starting at FIRST-TO_CHECK + are suitable for the format string. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_FORMAT +# if _GL_HAS_ATTRIBUTE (format) +# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) +# else +# define _GL_ATTRIBUTE_FORMAT(spec) +# endif +#endif + +/* _GL_ATTRIBUTE_LEAF declares that if the function is called from some other + compilation unit, it executes code from that unit only by return or by + exception handling. This declaration lets the compiler optimize that unit + more aggressively. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_LEAF +# if _GL_HAS_ATTRIBUTE (leaf) +# define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__)) +# else +# define _GL_ATTRIBUTE_LEAF +# endif +#endif + +/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly + allocated memory. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_MALLOC +# if _GL_HAS_ATTRIBUTE (malloc) +# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) +# else +# define _GL_ATTRIBUTE_MALLOC +# endif +#endif + +/* _GL_ATTRIBUTE_MAY_ALIAS declares that pointers to the type may point to the + same storage as pointers to other types. Thus this declaration disables + strict aliasing optimization. */ +/* Applies to: types. */ +/* Oracle Studio 12.6 mishandles may_alias despite __has_attribute OK. */ +#ifndef _GL_ATTRIBUTE_MAY_ALIAS +# if _GL_HAS_ATTRIBUTE (may_alias) && !defined __SUNPRO_C +# define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__)) +# else +# define _GL_ATTRIBUTE_MAY_ALIAS +# endif +#endif + +/* _GL_ATTRIBUTE_MAYBE_UNUSED declares that it is not a programming mistake if + the entity is not used. The compiler should not warn if the entity is not + used. */ +/* Applies to: + - function, variable, + - struct, union, struct/union member, + - enumeration, enumeration item, + - typedef, + in C++ also: class. */ +/* In C++ and C23, this is spelled [[__maybe_unused__]]. + GCC's syntax is __attribute__ ((__unused__)). + clang supports both syntaxes. Except that with clang ≥ 6, < 10, in C++ mode, + __has_c_attribute (__maybe_unused__) yields true but the use of + [[__maybe_unused__]] nevertheless produces a warning. */ +#ifndef _GL_ATTRIBUTE_MAYBE_UNUSED +# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE +# if defined __clang__ && defined __cplusplus +# if !defined __apple_build_version__ && __clang_major__ >= 10 +# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]] +# endif +# elif defined __has_c_attribute +# if __has_c_attribute (__maybe_unused__) +# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]] +# endif +# endif +# endif +# ifndef _GL_ATTRIBUTE_MAYBE_UNUSED +# define _GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_UNUSED +# endif +#endif +/* Alternative spelling of this macro, for convenience and for + compatibility with glibc/include/libc-symbols.h. */ +#define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED +/* Earlier spellings of this macro. */ +#define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED + +/* _GL_ATTRIBUTE_NODISCARD declares that the caller of the function should not + discard the return value. The compiler may warn if the caller does not use + the return value, unless the caller uses something like ignore_value. */ +/* Applies to: function, enumeration, class. */ +#ifndef _GL_ATTRIBUTE_NODISCARD +# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE +# if defined __clang__ && defined __cplusplus + /* With clang up to 15.0.6 (at least), in C++ mode, [[__nodiscard__]] produces + a warning. + The 1000 below means a yet unknown threshold. When clang++ version X + starts supporting [[__nodiscard__]] without warning about it, you can + replace the 1000 with X. */ +# if __clang_major__ >= 1000 +# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]] +# endif +# elif defined __has_c_attribute +# if __has_c_attribute (__nodiscard__) +# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]] +# endif +# endif +# endif +# if !defined _GL_ATTRIBUTE_NODISCARD && _GL_HAS_ATTRIBUTE (warn_unused_result) +# define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__)) +# endif +# ifndef _GL_ATTRIBUTE_NODISCARD +# define _GL_ATTRIBUTE_NODISCARD +# endif +#endif + +/* _GL_ATTRIBUTE_NOINLINE tells that the compiler should not inline the + function. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_NOINLINE +# if _GL_HAS_ATTRIBUTE (noinline) +# define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__)) +# else +# define _GL_ATTRIBUTE_NOINLINE +# endif +#endif + +/* _GL_ATTRIBUTE_NONNULL ((N1, N2,...)) declares that the arguments N1, N2,... + must not be NULL. + _GL_ATTRIBUTE_NONNULL () declares that all pointer arguments must not be + null. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_NONNULL +# if _GL_HAS_ATTRIBUTE (nonnull) +# define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args)) +# else +# define _GL_ATTRIBUTE_NONNULL(args) +# endif +#endif + +/* _GL_ATTRIBUTE_NONSTRING declares that the contents of a character array is + not meant to be NUL-terminated. */ +/* Applies to: struct/union members and variables that are arrays of element + type '[[un]signed] char'. */ +#ifndef _GL_ATTRIBUTE_NONSTRING +# if _GL_HAS_ATTRIBUTE (nonstring) +# define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__)) +# else +# define _GL_ATTRIBUTE_NONSTRING +# endif +#endif + +/* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */ + +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +#endif + +/* _GL_ATTRIBUTE_PACKED declares: + For struct members: The member has the smallest possible alignment. + For struct, union, class: All members have the smallest possible alignment, + minimizing the memory required. */ +/* Applies to: struct members, struct, union, + in C++ also: class. */ +#ifndef _GL_ATTRIBUTE_PACKED +# if _GL_HAS_ATTRIBUTE (packed) +# define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__)) +# else +# define _GL_ATTRIBUTE_PACKED +# endif +#endif + +/* _GL_ATTRIBUTE_PURE declares that It is OK for a compiler to omit duplicate + calls to the function with the same arguments if observable state is not + changed between calls. + This attribute is safe for a function that does not affect + observable state, and always returns exactly once. + (This attribute is looser than _GL_ATTRIBUTE_CONST.) */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_PURE +# if _GL_HAS_ATTRIBUTE (pure) +# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +# else +# define _GL_ATTRIBUTE_PURE +# endif +#endif + +/* _GL_ATTRIBUTE_RETURNS_NONNULL declares that the function's return value is + a non-NULL pointer. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_RETURNS_NONNULL +# if _GL_HAS_ATTRIBUTE (returns_nonnull) +# define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__)) +# else +# define _GL_ATTRIBUTE_RETURNS_NONNULL +# endif +#endif + +/* _GL_ATTRIBUTE_SENTINEL(pos) declares that the variadic function expects a + trailing NULL argument. + _GL_ATTRIBUTE_SENTINEL () - The last argument is NULL (requires C99). + _GL_ATTRIBUTE_SENTINEL ((N)) - The (N+1)st argument from the end is NULL. */ +/* Applies to: functions. */ +#ifndef _GL_ATTRIBUTE_SENTINEL +# if _GL_HAS_ATTRIBUTE (sentinel) +# define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos)) +# else +# define _GL_ATTRIBUTE_SENTINEL(pos) +# endif +#endif + +/* A helper macro. Don't use it directly. */ +#ifndef _GL_ATTRIBUTE_UNUSED +# if _GL_HAS_ATTRIBUTE (unused) +# define _GL_ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +# else +# define _GL_ATTRIBUTE_UNUSED +# endif +#endif + +]dnl There is no _GL_ATTRIBUTE_VISIBILITY; see m4/visibility.m4 instead. +[ +/* _GL_UNUSED_LABEL; declares that it is not a programming mistake if the + immediately preceding label is not used. The compiler should not warn + if the label is not used. */ +/* Applies to: label (both in C and C++). */ +/* Note that g++ < 4.5 does not support the '__attribute__ ((__unused__)) ;' + syntax. But clang does. */ +#ifndef _GL_UNUSED_LABEL +# if !(defined __cplusplus && !_GL_GNUC_PREREQ (4, 5)) || defined __clang__ +# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_UNUSED +# else +# define _GL_UNUSED_LABEL +# endif +#endif +]) + AH_VERBATIM([c_linkage], +[/* In C++, there is the concept of "language linkage", that encompasses + name mangling and function calling conventions. + The following macros start and end a block of "C" linkage. */ +#ifdef __cplusplus +# define _GL_BEGIN_C_LINKAGE extern "C" { +# define _GL_END_C_LINKAGE } +#else +# define _GL_BEGIN_C_LINKAGE +# define _GL_END_C_LINKAGE +#endif +]) + AH_VERBATIM([async_safe], +[/* The _GL_ASYNC_SAFE marker should be attached to functions that are + signal handlers (for signals other than SIGABRT, SIGPIPE) or can be + invoked from such signal handlers. Such functions have some restrictions: + * All functions that it calls should be marked _GL_ASYNC_SAFE as well, + or should be listed as async-signal-safe in POSIX + <https://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_04> + section 2.4.3. Note that malloc(), sprintf(), and fwrite(), in + particular, are NOT async-signal-safe. + * All memory locations (variables and struct fields) that these functions + access must be marked 'volatile'. This holds for both read and write + accesses. Otherwise the compiler might optimize away stores to and + reads from such locations that occur in the program, depending on its + data flow analysis. For example, when the program contains a loop + that is intended to inspect a variable set from within a signal handler + while (!signal_occurred) + ; + the compiler is allowed to transform this into an endless loop if the + variable 'signal_occurred' is not declared 'volatile'. + Additionally, recall that: + * A signal handler should not modify errno (except if it is a handler + for a fatal signal and ends by raising the same signal again, thus + provoking the termination of the process). If it invokes a function + that may clobber errno, it needs to save and restore the value of + errno. */ +#define _GL_ASYNC_SAFE +]) + AH_VERBATIM([micro_optimizations], +[/* _GL_CMP (n1, n2) performs a three-valued comparison on n1 vs. n2, where + n1 and n2 are expressions without side effects, that evaluate to real + numbers (excluding NaN). + It returns + 1 if n1 > n2 + 0 if n1 == n2 + -1 if n1 < n2 + The naïve code (n1 > n2 ? 1 : n1 < n2 ? -1 : 0) produces a conditional + jump with nearly all GCC versions up to GCC 10. + This variant (n1 < n2 ? -1 : n1 > n2) produces a conditional with many + GCC versions up to GCC 9. + The better code (n1 > n2) - (n1 < n2) from Hacker's Delight § 2-9 + avoids conditional jumps in all GCC versions >= 3.4. */ +#define _GL_CMP(n1, n2) (((n1) > (n2)) - ((n1) < (n2))) +]) + dnl Hint which direction to take regarding cross-compilation guesses: + dnl When a user installs a program on a platform they are not intimately + dnl familiar with, --enable-cross-guesses=conservative is the appropriate + dnl choice. It implements the "If we don't know, assume the worst" principle. + dnl However, when an operating system developer (on a platform which is not + dnl yet known to gnulib) builds packages for their platform, they want to + dnl expose, not hide, possible platform bugs; in this case, + dnl --enable-cross-guesses=risky is the appropriate choice. + dnl Sets the variables + dnl gl_cross_guess_normal (to be used when 'yes' is good and 'no' is bad), + dnl gl_cross_guess_inverted (to be used when 'no' is good and 'yes' is bad). + AC_ARG_ENABLE([cross-guesses], + [AS_HELP_STRING([[--enable-cross-guesses={conservative|risky}]], + [specify policy for cross-compilation guesses])], + [if test "x$enableval" != xconservative && test "x$enableval" != xrisky; then + AC_MSG_WARN([invalid argument supplied to --enable-cross-guesses]) + enableval=conservative + fi + gl_cross_guesses="$enableval"], + [gl_cross_guesses=conservative]) + if test $gl_cross_guesses = risky; then + gl_cross_guess_normal="guessing yes" + gl_cross_guess_inverted="guessing no" + else + gl_cross_guess_normal="guessing no" + gl_cross_guess_inverted="guessing yes" + fi + dnl Preparation for running test programs: + dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not + dnl to /dev/tty, so they can be redirected to log files. Such diagnostics + dnl arise e.g., in the macros gl_PRINTF_DIRECTIVE_N, gl_SNPRINTF_DIRECTIVE_N. + LIBC_FATAL_STDERR_=1 + export LIBC_FATAL_STDERR_ +]) + +# gl_MODULE_INDICATOR_INIT_VARIABLE([variablename]) +# gl_MODULE_INDICATOR_INIT_VARIABLE([variablename], [initialvalue]) +# initializes the shell variable that indicates the presence of the given module +# as a C preprocessor expression. +AC_DEFUN([gl_MODULE_INDICATOR_INIT_VARIABLE], +[ + GL_MODULE_INDICATOR_PREFIX[]_[$1]=m4_if([$2], , [0], [$2]) + AC_SUBST(GL_MODULE_INDICATOR_PREFIX[]_[$1]) +]) + +# gl_MODULE_INDICATOR_CONDITION +# expands to a C preprocessor expression that evaluates to 1 or 0, depending +# whether a gnulib module that has been requested shall be considered present +# or not. +m4_define([gl_MODULE_INDICATOR_CONDITION], [1]) + +# gl_MODULE_INDICATOR_SET_VARIABLE([modulename]) +# sets the shell variable that indicates the presence of the given module to +# a C preprocessor expression that will evaluate to 1. +AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE], +[ + gl_MODULE_INDICATOR_SET_VARIABLE_AUX( + [GL_MODULE_INDICATOR_PREFIX[]_GNULIB_[]m4_translit([[$1]], + [abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])], + [gl_MODULE_INDICATOR_CONDITION]) +]) + +# gl_MODULE_INDICATOR_SET_VARIABLE_AUX([variable]) +# modifies the shell variable to include the gl_MODULE_INDICATOR_CONDITION. +# The shell variable's value is a C preprocessor expression that evaluates +# to 0 or 1. +AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX], +[ + m4_if(m4_defn([gl_MODULE_INDICATOR_CONDITION]), [1], + [ + dnl Simplify the expression VALUE || 1 to 1. + $1=1 + ], + [gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([$1], + [gl_MODULE_INDICATOR_CONDITION])]) +]) + +# gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([variable], [condition]) +# modifies the shell variable to include the given condition. The shell +# variable's value is a C preprocessor expression that evaluates to 0 or 1. +AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR], +[ + dnl Simplify the expression 1 || CONDITION to 1. + if test "$[]$1" != 1; then + dnl Simplify the expression 0 || CONDITION to CONDITION. + if test "$[]$1" = 0; then + $1=$2 + else + $1="($[]$1 || $2)" + fi + fi +]) + +# gl_MODULE_INDICATOR([modulename]) +# defines a C macro indicating the presence of the given module +# in a location where it can be used. +# | Value | Value | +# | in lib/ | in tests/ | +# --------------------------------------------+---------+-----------+ +# Module present among main modules: | 1 | 1 | +# --------------------------------------------+---------+-----------+ +# Module present among tests-related modules: | 0 | 1 | +# --------------------------------------------+---------+-----------+ +# Module not present at all: | 0 | 0 | +# --------------------------------------------+---------+-----------+ +AC_DEFUN([gl_MODULE_INDICATOR], +[ + AC_DEFINE_UNQUOTED([GNULIB_]m4_translit([[$1]], + [abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), + [gl_MODULE_INDICATOR_CONDITION], + [Define to a C preprocessor expression that evaluates to 1 or 0, + depending whether the gnulib module $1 shall be considered present.]) +]) + +# gl_MODULE_INDICATOR_FOR_TESTS([modulename]) +# defines a C macro indicating the presence of the given module +# in lib or tests. This is useful to determine whether the module +# should be tested. +# | Value | Value | +# | in lib/ | in tests/ | +# --------------------------------------------+---------+-----------+ +# Module present among main modules: | 1 | 1 | +# --------------------------------------------+---------+-----------+ +# Module present among tests-related modules: | 1 | 1 | +# --------------------------------------------+---------+-----------+ +# Module not present at all: | 0 | 0 | +# --------------------------------------------+---------+-----------+ +AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], +[ + AC_DEFINE([GNULIB_TEST_]m4_translit([[$1]], + [abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1], + [Define to 1 when the gnulib module $1 should be tested.]) +]) + +# gl_ASSERT_NO_GNULIB_POSIXCHECK +# asserts that there will never be a need to #define GNULIB_POSIXCHECK. +# and thereby enables an optimization of configure and config.h. +# Used by Emacs. +AC_DEFUN([gl_ASSERT_NO_GNULIB_POSIXCHECK], +[ + dnl Override gl_WARN_ON_USE_PREPARE. + dnl But hide this definition from 'aclocal'. + AC_DEFUN([gl_W][ARN_ON_USE_PREPARE], []) +]) + +# gl_ASSERT_NO_GNULIB_TESTS +# asserts that there will be no gnulib tests in the scope of the configure.ac +# and thereby enables an optimization of config.h. +# Used by Emacs. +AC_DEFUN([gl_ASSERT_NO_GNULIB_TESTS], +[ + dnl Override gl_MODULE_INDICATOR_FOR_TESTS. + AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], []) +]) + +# Test whether <features.h> exists. +# Set HAVE_FEATURES_H. +AC_DEFUN([gl_FEATURES_H], +[ + AC_CHECK_HEADERS_ONCE([features.h]) + if test $ac_cv_header_features_h = yes; then + HAVE_FEATURES_H=1 + else + HAVE_FEATURES_H=0 + fi + AC_SUBST([HAVE_FEATURES_H]) +]) + +# gl_PROG_CC_C99 +# Modifies the value of the shell variable CC in an attempt to make $CC +# understand ISO C99 source code. +AC_DEFUN([gl_PROG_CC_C99], +[ + dnl Just use AC_PROG_CC_C99. + dnl When AC_PROG_CC_C99 and AC_PROG_CC_STDC are used together, the substituted + dnl value of CC will contain the C99 enabling options twice. But this is only + dnl a cosmetic problem. + dnl With Autoconf >= 2.70, use AC_PROG_CC since it implies AC_PROG_CC_C99; + dnl this avoids a "warning: The macro `AC_PROG_CC_C99' is obsolete." + m4_version_prereq([2.70], + [AC_REQUIRE([AC_PROG_CC])], + [AC_REQUIRE([AC_PROG_CC_C99])]) +]) + +# gl_PROG_AR_RANLIB +# Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler. +# The user can set the variables AR, ARFLAGS, RANLIB if he wants to override +# the values. +AC_DEFUN([gl_PROG_AR_RANLIB], +[ + dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler + dnl as "cc", and GCC as "gcc". They have different object file formats and + dnl library formats. In particular, the GNU binutils programs ar and ranlib + dnl produce libraries that work only with gcc, not with cc. + AC_REQUIRE([AC_PROG_CC]) + dnl The '][' hides this use from 'aclocal'. + AC_BEFORE([$0], [A][M_PROG_AR]) + AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler], + [ + AC_EGREP_CPP([Amsterdam], + [ +#ifdef __ACK__ +Amsterdam +#endif + ], + [gl_cv_c_amsterdam_compiler=yes], + [gl_cv_c_amsterdam_compiler=no]) + ]) + + dnl Don't compete with AM_PROG_AR's decision about AR/ARFLAGS if we are not + dnl building with __ACK__. + if test $gl_cv_c_amsterdam_compiler = yes; then + if test -z "$AR"; then + AR='cc -c.a' + fi + if test -z "$ARFLAGS"; then + ARFLAGS='-o' + fi + else + dnl AM_PROG_AR was added in automake v1.11.2. AM_PROG_AR does not AC_SUBST + dnl ARFLAGS variable (it is filed into Makefile.in directly by automake + dnl script on-demand, if not specified by ./configure of course). + dnl Don't AC_REQUIRE the AM_PROG_AR otherwise the code for __ACK__ above + dnl will be ignored. Also, pay attention to call AM_PROG_AR in else block + dnl because AM_PROG_AR is written so it could re-set AR variable even for + dnl __ACK__. It may seem like its easier to avoid calling the macro here, + dnl but we need to AC_SUBST both AR/ARFLAGS (thus those must have some good + dnl default value and automake should usually know them). + dnl + dnl The '][' hides this use from 'aclocal'. + m4_ifdef([A][M_PROG_AR], [A][M_PROG_AR], [:]) + fi + + dnl In case the code above has not helped with setting AR/ARFLAGS, use + dnl Automake-documented default values for AR and ARFLAGS, but prefer + dnl ${host}-ar over ar (useful for cross-compiling). + AC_CHECK_TOOL([AR], [ar], [ar]) + if test -z "$ARFLAGS"; then + ARFLAGS='cr' + fi + + AC_SUBST([AR]) + AC_SUBST([ARFLAGS]) + if test -z "$RANLIB"; then + if test $gl_cv_c_amsterdam_compiler = yes; then + RANLIB=':' + else + dnl Use the ranlib program if it is available. + AC_PROG_RANLIB + fi + fi + AC_SUBST([RANLIB]) +]) + +# AC_C_RESTRICT +# This definition is copied from post-2.70 Autoconf and overrides the +# AC_C_RESTRICT macro from autoconf 2.60..2.70. +m4_version_prereq([2.70.1], [], [ +AC_DEFUN([AC_C_RESTRICT], +[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict], + [ac_cv_c_restrict=no + # Put '__restrict__' first, to avoid problems with glibc and non-GCC; see: + # https://lists.gnu.org/archive/html/bug-autoconf/2016-02/msg00006.html + # Put 'restrict' last, because C++ lacks it. + for ac_kw in __restrict__ __restrict _Restrict restrict; do + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[typedef int *int_ptr; + int foo (int_ptr $ac_kw ip) { return ip[0]; } + int bar (int [$ac_kw]); /* Catch GCC bug 14050. */ + int bar (int ip[$ac_kw]) { return ip[0]; } + ]], + [[int s[1]; + int *$ac_kw t = s; + t[0] = 0; + return foo (t) + bar (t); + ]])], + [ac_cv_c_restrict=$ac_kw]) + test "$ac_cv_c_restrict" != no && break + done + ]) + AH_VERBATIM([restrict], +[/* Define to the equivalent of the C99 'restrict' keyword, or to + nothing if this is not supported. Do not define if restrict is + supported only directly. */ +#undef restrict +/* Work around a bug in older versions of Sun C++, which did not + #define __restrict__ or support _Restrict or __restrict__ + even though the corresponding Sun C compiler ended up with + "#define restrict _Restrict" or "#define restrict __restrict__" + in the previous line. This workaround can be removed once + we assume Oracle Developer Studio 12.5 (2016) or later. */ +#if defined __SUNPRO_CC && !defined __RESTRICT && !defined __restrict__ +# define _Restrict +# define __restrict__ +#endif]) + case $ac_cv_c_restrict in + restrict) ;; + no) AC_DEFINE([restrict], []) ;; + *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; + esac +])# AC_C_RESTRICT +]) + +# gl_BIGENDIAN +# is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd. +# Note that AC_REQUIRE([AC_C_BIGENDIAN]) does not work reliably because some +# macros invoke AC_C_BIGENDIAN with arguments. +AC_DEFUN([gl_BIGENDIAN], +[ + AC_C_BIGENDIAN +]) + +# A temporary file descriptor. +# Must be less than 10, because dash 0.5.8 does not support redirections +# with multi-digit file descriptors. +m4_define([GL_TMP_FD], 9) + +# gl_SILENT(command) +# executes command, but without the normal configure output. +# This is useful when you want to invoke AC_CACHE_CHECK (or AC_CHECK_FUNC etc.) +# inside another AC_CACHE_CHECK. +AC_DEFUN([gl_SILENT], +[ + exec GL_TMP_FD>&AS_MESSAGE_FD AS_MESSAGE_FD>/dev/null + $1 + exec AS_MESSAGE_FD>&GL_TMP_FD GL_TMP_FD>&- +]) + +# gl_CACHE_VAL_SILENT(cache-id, command-to-set-it) +# is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not +# output a spurious "(cached)" mark in the midst of other configure output. +# This macro should be used instead of AC_CACHE_VAL when it is not surrounded +# by an AC_MSG_CHECKING/AC_MSG_RESULT pair. +AC_DEFUN([gl_CACHE_VAL_SILENT], +[ + gl_SILENT([ + AC_CACHE_VAL([$1], [$2]) + ]) +]) + +# gl_CONDITIONAL(conditional, condition) +# is like AM_CONDITIONAL(conditional, condition), except that it does not +# produce an error +# configure: error: conditional "..." was never defined. +# Usually this means the macro was only invoked conditionally. +# when only invoked conditionally. Instead, in that case, both the _TRUE +# and the _FALSE case are disabled. +AC_DEFUN([gl_CONDITIONAL], +[ + pushdef([AC_CONFIG_COMMANDS_PRE], [:])dnl + AM_CONDITIONAL([$1], [$2]) + popdef([AC_CONFIG_COMMANDS_PRE])dnl + if test -z "${[$1]_TRUE}" && test -z "${[$1]_FALSE}"; then + [$1]_TRUE='#' + [$1]_FALSE='#' + fi +]) + +# gl_CC_ALLOW_WARNINGS +# sets and substitutes a variable GL_CFLAG_ALLOW_WARNINGS, to a $(CC) option +# that reverts a preceding '-Werror' option, if available. +# This is expected to be '-Wno-error' on gcc, clang (except clang/MSVC), xlclang +# and empty otherwise. +AC_DEFUN([gl_CC_ALLOW_WARNINGS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for C compiler option to allow warnings], + [gl_cv_cc_wallow], + [rm -f conftest* + echo 'int dummy;' > conftest.c + AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c 2>conftest1.err]) >/dev/null + AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -Wno-error -c conftest.c 2>conftest2.err]) >/dev/null + dnl Test the number of error output lines, because AIX xlc accepts the + dnl option '-Wno-error', just to produce a warning + dnl "Option -Wno-error was incorrectly specified. The option will be ignored." + dnl afterwards. + if test $? = 0 && test `wc -l < conftest1.err` = `wc -l < conftest2.err`; then + gl_cv_cc_wallow='-Wno-error' + else + gl_cv_cc_wallow=none + fi + rm -f conftest* + ]) + case "$gl_cv_cc_wallow" in + none) GL_CFLAG_ALLOW_WARNINGS='' ;; + *) GL_CFLAG_ALLOW_WARNINGS="$gl_cv_cc_wallow" ;; + esac + AC_SUBST([GL_CFLAG_ALLOW_WARNINGS]) +]) + +# gl_CXX_ALLOW_WARNINGS +# sets and substitutes a variable GL_CXXFLAG_ALLOW_WARNINGS, to a $(CC) option +# that reverts a preceding '-Werror' option, if available. +AC_DEFUN([gl_CXX_ALLOW_WARNINGS], +[ + dnl Requires AC_PROG_CXX or gl_PROG_ANSI_CXX. + if test -n "$CXX" && test "$CXX" != no; then + AC_CACHE_CHECK([for C++ compiler option to allow warnings], + [gl_cv_cxx_wallow], + [rm -f conftest* + echo 'int dummy;' > conftest.cc + AC_TRY_COMMAND([${CXX-c++} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>conftest1.err]) >/dev/null + AC_TRY_COMMAND([${CXX-c++} $CXXFLAGS $CPPFLAGS -Wno-error -c conftest.cc 2>conftest2.err]) >/dev/null + dnl Test the number of error output lines, because AIX xlC accepts the + dnl option '-Wno-error', just to produce a warning + dnl "Option -Wno-error was incorrectly specified. The option will be ignored." + dnl afterwards. + if test $? = 0 && test `wc -l < conftest1.err` = `wc -l < conftest2.err`; then + gl_cv_cxx_wallow='-Wno-error' + else + gl_cv_cxx_wallow=none + fi + rm -f conftest* + ]) + case "$gl_cv_cxx_wallow" in + none) GL_CXXFLAG_ALLOW_WARNINGS='' ;; + *) GL_CXXFLAG_ALLOW_WARNINGS="$gl_cv_cxx_wallow" ;; + esac + else + GL_CXXFLAG_ALLOW_WARNINGS='' + fi + AC_SUBST([GL_CXXFLAG_ALLOW_WARNINGS]) +]) + +# gl_CC_GNULIB_WARNINGS +# sets and substitutes a variable GL_CFLAG_GNULIB_WARNINGS, to a $(CC) option +# set that enables or disables warnings as suitable for the Gnulib coding style. +AC_DEFUN([gl_CC_GNULIB_WARNINGS], +[ + AC_REQUIRE([gl_CC_ALLOW_WARNINGS]) + dnl Assume that the compiler supports -Wno-* options only if it also supports + dnl -Wno-error. + GL_CFLAG_GNULIB_WARNINGS='' + if test -n "$GL_CFLAG_ALLOW_WARNINGS"; then + dnl Enable these warning options: + dnl + dnl GCC clang + dnl -Wno-cast-qual >= 3 >= 3.9 + dnl -Wno-conversion >= 3 >= 3.9 + dnl -Wno-float-conversion >= 4.9 >= 3.9 + dnl -Wno-float-equal >= 3 >= 3.9 + dnl -Wimplicit-fallthrough >= 7 >= 3.9 + dnl -Wno-pedantic >= 4.8 >= 3.9 + dnl -Wno-sign-compare >= 3 >= 3.9 + dnl -Wno-sign-conversion >= 4.3 >= 3.9 + dnl -Wno-type-limits >= 4.3 >= 3.9 + dnl -Wno-undef >= 3 >= 3.9 + dnl -Wno-unsuffixed-float-constants >= 4.5 + dnl -Wno-unused-function >= 3 >= 3.9 + dnl -Wno-unused-parameter >= 3 >= 3.9 + dnl + cat > conftest.c <<\EOF + #if __GNUC__ >= 3 || (__clang_major__ + (__clang_minor__ >= 9) > 3) + -Wno-cast-qual + -Wno-conversion + -Wno-float-equal + -Wno-sign-compare + -Wno-undef + -Wno-unused-function + -Wno-unused-parameter + #endif + #if __GNUC__ + (__GNUC_MINOR__ >= 9) > 4 || (__clang_major__ + (__clang_minor__ >= 9) > 3) + -Wno-float-conversion + #endif + #if __GNUC__ >= 7 || (__clang_major__ + (__clang_minor__ >= 9) > 3) + -Wimplicit-fallthrough + #endif + #if __GNUC__ + (__GNUC_MINOR__ >= 8) > 4 || (__clang_major__ + (__clang_minor__ >= 9) > 3) + -Wno-pedantic + #endif + #if __GNUC__ + (__GNUC_MINOR__ >= 3) > 4 || (__clang_major__ + (__clang_minor__ >= 9) > 3) + -Wno-sign-conversion + -Wno-type-limits + #endif + #if __GNUC__ + (__GNUC_MINOR__ >= 5) > 4 + -Wno-unsuffixed-float-constants + #endif +EOF + gl_command="$CC $CFLAGS $CPPFLAGS -E conftest.c > conftest.out" + if AC_TRY_EVAL([gl_command]); then + gl_options=`grep -v '#' conftest.out` + for word in $gl_options; do + GL_CFLAG_GNULIB_WARNINGS="$GL_CFLAG_GNULIB_WARNINGS $word" + done + fi + rm -f conftest.c conftest.out + fi + AC_SUBST([GL_CFLAG_GNULIB_WARNINGS]) +]) + +dnl gl_CONDITIONAL_HEADER([foo.h]) +dnl takes a shell variable GL_GENERATE_FOO_H (with value true or false) as input +dnl and produces +dnl - an AC_SUBSTed variable FOO_H that is either a file name or empty, based +dnl on whether GL_GENERATE_FOO_H is true or false, +dnl - an Automake conditional GL_GENERATE_FOO_H that evaluates to the value of +dnl the shell variable GL_GENERATE_FOO_H. +AC_DEFUN([gl_CONDITIONAL_HEADER], +[ + m4_pushdef([gl_header_name], AS_TR_SH(m4_toupper($1))) + m4_pushdef([gl_generate_var], [GL_GENERATE_]AS_TR_SH(m4_toupper($1))) + m4_pushdef([gl_generate_cond], [GL_GENERATE_]AS_TR_SH(m4_toupper($1))) + case "$gl_generate_var" in + false) gl_header_name='' ;; + true) + dnl It is OK to use a .h file in lib/ from within tests/, but not vice + dnl versa. + if test -z "$gl_header_name"; then + gl_header_name="${gl_source_base_prefix}$1" + fi + ;; + *) echo "*** gl_generate_var is not set correctly" 1>&2; exit 1 ;; + esac + AC_SUBST(gl_header_name) + gl_CONDITIONAL(gl_generate_cond, [$gl_generate_var]) + m4_popdef([gl_generate_cond]) + m4_popdef([gl_generate_var]) + m4_popdef([gl_header_name]) +]) + +dnl Preparations for gl_CHECK_FUNCS_MACOS. +AC_DEFUN([gl_PREPARE_CHECK_FUNCS_MACOS], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_COMPILER_CLANG]) + AC_CACHE_CHECK([for compiler option needed when checking for future declarations], + [gl_cv_compiler_check_future_option], + [case "$host_os" in + dnl This is only needed on macOS. + darwin*) + if test $gl_cv_compiler_clang = yes; then + dnl Test whether the compiler supports the option + dnl '-Werror=unguarded-availability-new'. + save_ac_compile="$ac_compile" + ac_compile="$ac_compile -Werror=unguarded-availability-new" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[]])], + [gl_cv_compiler_check_future_option='-Werror=unguarded-availability-new'], + [gl_cv_compiler_check_future_option=none]) + ac_compile="$save_ac_compile" + else + gl_cv_compiler_check_future_option=none + fi + ;; + *) gl_cv_compiler_check_future_option=none ;; + esac + ]) +]) + +dnl Pieces of the expansion of +dnl gl_CHECK_FUNCS_ANDROID +dnl gl_CHECK_FUNCS_MACOS +dnl gl_CHECK_FUNCS_ANDROID_MACOS + +AC_DEFUN([gl_CHECK_FUNCS_DEFAULT_CASE], +[ + *) + AC_CHECK_FUNC([$1]) + [gl_cv_onwards_func_][$1]=$[ac_cv_func_][$1] + ;; +]) + +AC_DEFUN([gl_CHECK_FUNCS_CASE_FOR_ANDROID], +[ + linux*-android*) + AC_CHECK_DECL([$1], , , [$2]) + if test $[ac_cv_have_decl_][$1] = yes; then + AC_CHECK_FUNC([[$1]]) + if test $[ac_cv_func_][$1] = yes; then + [gl_cv_onwards_func_][$1]=yes + else + dnl The function is declared but does not exist. This should not + dnl happen normally. But anyway, we know that a future version + dnl of Android will have the function. + [gl_cv_onwards_func_][$1]='future OS version' + fi + else + [gl_cv_onwards_func_][$1]='future OS version' + fi + ;; +]) + +AC_DEFUN([gl_CHECK_FUNCS_CASE_FOR_MACOS], +[ + darwin*) + if test "x$gl_cv_compiler_check_future_option" != "xnone"; then + dnl Use a compile test, not a link test. + save_ac_compile="$ac_compile" + ac_compile="$ac_compile $gl_cv_compiler_check_future_option" + save_ac_compile_for_check_decl="$ac_compile_for_check_decl" + ac_compile_for_check_decl="$ac_compile_for_check_decl $gl_cv_compiler_check_future_option" + unset [ac_cv_have_decl_][$1] + AC_CHECK_DECL([$1], , , [$2]) + ac_compile="$save_ac_compile" + ac_compile_for_check_decl="$save_ac_compile_for_check_decl" + [ac_cv_func_][$1]="$[ac_cv_have_decl_][$1]" + if test $[ac_cv_func_][$1] = yes; then + [gl_cv_onwards_func_][$1]=yes + else + unset [ac_cv_have_decl_][$1] + AC_CHECK_DECL([$1], , , [$2]) + if test $[ac_cv_have_decl_][$1] = yes; then + [gl_cv_onwards_func_][$1]='future OS version' + else + [gl_cv_onwards_func_][$1]=no + fi + fi + else + AC_CHECK_FUNC([$1]) + [gl_cv_onwards_func_][$1]=$[ac_cv_func_][$1] + fi + ;; +]) + +AC_DEFUN([gl_CHECK_FUNCS_SET_RESULTS], +[ + case "$[gl_cv_onwards_func_][$1]" in + future*) [ac_cv_func_][$1]=no ;; + *) [ac_cv_func_][$1]=$[gl_cv_onwards_func_][$1] ;; + esac + if test $[ac_cv_func_][$1] = yes; then + AC_DEFINE([HAVE_]m4_translit([[$1]], + [abcdefghijklmnopqrstuvwxyz], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ]), + [1], [Define to 1 if you have the `$1' function.]) + fi +]) + +dnl gl_CHECK_FUNCS_ANDROID([func], [[#include <foo.h>]]) +dnl is like AC_CHECK_FUNCS([func]), taking into account a portability problem +dnl on Android. +dnl +dnl When code is compiled on Android, it is in the context of a certain +dnl "Android API level", which indicates the minimum version of Android on +dnl which the app can be installed. In other words, you don't compile for a +dnl specific version of Android. You compile for all versions of Android, +dnl onwards from the given API level. +dnl Thus, the question "does the OS have the function func" has three possible +dnl answers: +dnl - yes, in all versions starting from the given API level, +dnl - no, in no version, +dnl - not in the given API level, but in a later version of Android. +dnl +dnl In detail, this works as follows: +dnl If func was added to Android API level, say, 28, then the libc.so has the +dnl symbol func always, whereas the header file <foo.h> declares func +dnl conditionally: +dnl #if __ANDROID_API__ >= 28 +dnl ... func (...) __INTRODUCED_IN(28); +dnl #endif +dnl Thus, when compiling with "clang -target armv7a-unknown-linux-android28", +dnl the function func is declared and exists in libc. +dnl Whereas when compiling with "clang -target armv7a-unknown-linux-android27", +dnl the function func is not declared but exists in libc. +dnl +dnl This macro sets two variables: +dnl - gl_cv_onwards_func_<func> to yes / no / "future OS version" +dnl - ac_cv_func_<func> to yes / no / no +dnl The first variable allows to distinguish all three cases. +dnl The second variable is set, so that an invocation +dnl gl_CHECK_FUNCS_ANDROID([func], [[#include <foo.h>]]) +dnl can be used as a drop-in replacement for +dnl AC_CHECK_FUNCS([func]). +AC_DEFUN([gl_CHECK_FUNCS_ANDROID], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([for [$1]], + [[gl_cv_onwards_func_][$1]], + [gl_SILENT([ + case "$host_os" in + gl_CHECK_FUNCS_CASE_FOR_ANDROID([$1], [$2]) + gl_CHECK_FUNCS_DEFAULT_CASE([$1]) + esac + ]) + ]) + gl_CHECK_FUNCS_SET_RESULTS([$1]) +]) + +dnl gl_CHECK_FUNCS_MACOS([func], [[#include <foo.h>]]) +dnl is like AC_CHECK_FUNCS([func]), taking into account a portability problem +dnl on macOS. +dnl +dnl When code is compiled on macOS, it is in the context of a certain minimum +dnl macOS version, that can be set through the option '-mmacosx-version-min='. +dnl In other words, you don't compile for a specific version of macOS. You +dnl compile for all versions of macOS, onwards from the given version. +dnl Thus, the question "does the OS have the function func" has three possible +dnl answers: +dnl - yes, in all versions starting from the given version, +dnl - no, in no version, +dnl - not in the given version, but in a later version of macOS. +dnl +dnl In detail, this works as follows: +dnl If func was added to, say, macOS version 13, then the libc has the +dnl symbol func always, whereas the header file <foo.h> declares func +dnl conditionally with a special availability attribute: +dnl ... func (...) __attribute__((availability(macos,introduced=13.0))); +dnl Thus, when compiling with "clang mmacosx-version-min=13", there is no +dnl warning about the use of func, and the resulting binary +dnl - runs fine on macOS 13, +dnl - aborts with a dyld "Symbol not found" message on macOS 12. +dnl Whereas, when compiling with "clang mmacosx-version-min=12", there is a +dnl warning: 'func' is only available on macOS 13.0 or newer +dnl [-Wunguarded-availability-new], +dnl and the resulting binary +dnl - runs fine on macOS 13, +dnl - crashes with a SIGSEGV (signal 11) on macOS 12. +dnl +dnl This macro sets two variables: +dnl - gl_cv_onwards_func_<func> to yes / no / "future OS version" +dnl - ac_cv_func_<func> to yes / no / no +dnl The first variable allows to distinguish all three cases. +dnl The second variable is set, so that an invocation +dnl gl_CHECK_FUNCS_MACOS([func], [[#include <foo.h>]]) +dnl can be used as a drop-in replacement for +dnl AC_CHECK_FUNCS([func]). +AC_DEFUN([gl_CHECK_FUNCS_MACOS], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_PREPARE_CHECK_FUNCS_MACOS]) + AC_CACHE_CHECK([for [$1]], + [[gl_cv_onwards_func_][$1]], + [gl_SILENT([ + case "$host_os" in + gl_CHECK_FUNCS_CASE_FOR_MACOS([$1], [$2]) + gl_CHECK_FUNCS_DEFAULT_CASE([$1]) + esac + ]) + ]) + gl_CHECK_FUNCS_SET_RESULTS([$1]) +]) + +dnl gl_CHECK_FUNCS_ANDROID_MACOS([func], [[#include <foo.h>]]) +dnl is like AC_CHECK_FUNCS([func]), taking into account a portability problem +dnl on Android and on macOS. +dnl It is the combination of gl_CHECK_FUNCS_ANDROID and gl_CHECK_FUNCS_MACOS. +AC_DEFUN([gl_CHECK_FUNCS_ANDROID_MACOS], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_PREPARE_CHECK_FUNCS_MACOS]) + AC_CACHE_CHECK([for [$1]], + [[gl_cv_onwards_func_][$1]], + [gl_SILENT([ + case "$host_os" in + gl_CHECK_FUNCS_CASE_FOR_ANDROID([$1], [$2]) + gl_CHECK_FUNCS_CASE_FOR_MACOS([$1], [$2]) + gl_CHECK_FUNCS_DEFAULT_CASE([$1]) + esac + ]) + ]) + gl_CHECK_FUNCS_SET_RESULTS([$1]) +]) + +dnl Expands to some code for use in .c programs that, on native Windows, defines +dnl the Microsoft deprecated alias function names to the underscore-prefixed +dnl actual function names. With this macro, these function names are available +dnl without linking with '-loldnames' and without generating warnings. +dnl Usage: Use it after all system header files are included. +dnl #include <...> +dnl #include <...> +dnl ]GL_MDA_DEFINES[ +dnl ... +AC_DEFUN([GL_MDA_DEFINES],[ +AC_REQUIRE([_GL_MDA_DEFINES]) +[$gl_mda_defines] +]) +AC_DEFUN([_GL_MDA_DEFINES], +[gl_mda_defines=' +#if defined _WIN32 && !defined __CYGWIN__ +#define access _access +#define chdir _chdir +#define chmod _chmod +#define close _close +#define creat _creat +#define dup _dup +#define dup2 _dup2 +#define ecvt _ecvt +#define execl _execl +#define execle _execle +#define execlp _execlp +#define execv _execv +#define execve _execve +#define execvp _execvp +#define execvpe _execvpe +#define fcloseall _fcloseall +#define fcvt _fcvt +#define fdopen _fdopen +#define fileno _fileno +#define gcvt _gcvt +#define getcwd _getcwd +#define getpid _getpid +#define getw _getw +#define isatty _isatty +#define j0 _j0 +#define j1 _j1 +#define jn _jn +#define lfind _lfind +#define lsearch _lsearch +#define lseek _lseek +#define memccpy _memccpy +#define mkdir _mkdir +#define mktemp _mktemp +#define open _open +#define putenv _putenv +#define putw _putw +#define read _read +#define rmdir _rmdir +#define strdup _strdup +#define swab _swab +#define tempnam _tempnam +#define tzset _tzset +#define umask _umask +#define unlink _unlink +#define utime _utime +#define wcsdup _wcsdup +#define write _write +#define y0 _y0 +#define y1 _y1 +#define yn _yn +#endif +' +]) diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4 new file mode 100644 index 0000000..37a3a78 --- /dev/null +++ b/gl/m4/gnulib-comp.m4 @@ -0,0 +1,1968 @@ +# DO NOT EDIT! GENERATED AUTOMATICALLY! +# Copyright (C) 2002-2023 Free Software Foundation, Inc. +# +# This file is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This file is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this file. If not, see <https://www.gnu.org/licenses/>. +# +# As a special exception to the GNU General Public License, +# this file may be distributed as part of a program that +# contains a configuration script generated by Autoconf, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# +# This file represents the compiled summary of the specification in +# gnulib-cache.m4. It lists the computed macro invocations that need +# to be invoked from configure.ac. +# In projects that use version control, this file can be treated like +# other built files. + + +# This macro should be invoked from ./configure.ac, in the section +# "Checks for programs", right after AC_PROG_CC, and certainly before +# any checks for libraries, header files, types and library functions. +AC_DEFUN([gl_EARLY], +[ + m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace + m4_pattern_allow([^gl_ES$])dnl a valid locale name + m4_pattern_allow([^gl_LIBOBJS$])dnl a variable + m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable + + # Pre-early section. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_PROG_AR_RANLIB]) + + # Code from module absolute-header: + # Code from module alignasof: + # Code from module alloca: + # Code from module alloca-opt: + # Code from module argp: + # Code from module array-list: + # Code from module assert-h: + # Code from module assure: + # Code from module at-internal: + # Code from module attribute: + # Code from module basename-lgpl: + # Code from module bitrotate: + # Code from module btowc: + # Code from module builtin-expect: + # Code from module c99: + # Code from module calloc-gnu: + # Code from module calloc-posix: + # Code from module canonicalize: + # Code from module canonicalize-lgpl: + # Code from module chdir: + # Code from module chdir-long: + # Code from module chown: + # Code from module clock-time: + # Code from module cloexec: + # Code from module close: + # Code from module closedir: + # Code from module ctype: + # Code from module d-ino: + # Code from module d-type: + # Code from module dirent: + # Code from module dirfd: + # Code from module dirname: + # Code from module dirname-lgpl: + # Code from module double-slash-root: + # Code from module dup: + # Code from module dup2: + # Code from module eloop-threshold: + # Code from module environ: + # Code from module errno: + # Code from module error: + # Code from module error-h: + # Code from module exitfail: + # Code from module extensions: + # Code from module extern-inline: + # Code from module fchdir: + # Code from module fcntl: + # Code from module fcntl-h: + # Code from module fd-hook: + # Code from module fd-safer-flag: + # Code from module fdopendir: + # Code from module file-set: + # Code from module filename: + # Code from module filenamecat-lgpl: + # Code from module flexmember: + # Code from module float: + # Code from module flock: + # Code from module fnmatch: + # Code from module fnmatch-gnu: + # Code from module fnmatch-h: + # Code from module free-posix: + # Code from module fstat: + # Code from module fstatat: + # Code from module gen-header: + # Code from module getcwd: + # Code from module getcwd-lgpl: + # Code from module getdelim: + # Code from module getdtablesize: + # Code from module getline: + # Code from module getlogin_r: + # Code from module getopt-gnu: + # Code from module getopt-posix: + # Code from module getprogname: + # Code from module getrandom: + # Code from module gettext-h: + # Code from module gettime: + # Code from module gettimeofday: + # Code from module gitlog-to-changelog: + # Code from module glibc-internal/dynarray: + # Code from module glibc-internal/scratch_buffer: + # Code from module glob: + # Code from module glob-h: + # Code from module gnupload: + # Code from module hard-locale: + # Code from module hash: + # Code from module hash-map: + # Code from module hash-pjw: + # Code from module hash-pjw-bare: + # Code from module hash-set: + # Code from module hash-triple-simple: + # Code from module havelib: + # Code from module ialloc: + # Code from module idpriv-drop: + # Code from module idpriv-droptemp: + # Code from module idx: + # Code from module include_next: + # Code from module intprops: + # Code from module inttypes-incomplete: + # Code from module ioctl: + # Code from module isblank: + # Code from module langinfo: + # Code from module largefile: + AC_REQUIRE([AC_SYS_LARGEFILE]) + # Code from module lchown: + # Code from module lib-ignore: + # Code from module libc-config: + # Code from module limits-h: + # Code from module linkedhash-list: + # Code from module list: + # Code from module localcharset: + # Code from module locale: + # Code from module localeconv: + # Code from module lock: + # Code from module lstat: + # Code from module malloc-gnu: + # Code from module malloc-posix: + # Code from module malloca: + # Code from module manywarnings: + # Code from module map: + # Code from module mbrtowc: + # Code from module mbsinit: + # Code from module mbsrtowcs: + # Code from module mbtowc: + # Code from module memchr: + # Code from module memmem: + # Code from module memmem-simple: + # Code from module mempcpy: + # Code from module memrchr: + # Code from module minmax: + # Code from module mkdir: + # Code from module mkdtemp: + # Code from module mkstemp: + # Code from module msvc-inval: + # Code from module msvc-nothrow: + # Code from module multiarch: + # Code from module nanosleep: + # Code from module nl_langinfo: + # Code from module nocrash: + # Code from module nonblocking: + # Code from module open: + # Code from module openat: + # Code from module openat-die: + # Code from module openat-h: + # Code from module opendir: + # Code from module pathmax: + # Code from module pipe-posix: + # Code from module progname: + # Code from module pselect: + # Code from module pthread_sigmask: + # Code from module raise: + # Code from module rawmemchr: + # Code from module rbtree-list: + # Code from module readdir: + # Code from module readlink: + # Code from module readlinkat: + # Code from module realloc-gnu: + # Code from module realloc-posix: + # Code from module reallocarray: + # Code from module regex: + # Code from module rename: + # Code from module renameat: + # Code from module renameatu: + # Code from module rewinddir: + # Code from module rmdir: + # Code from module same-inode: + # Code from module save-cwd: + # Code from module select: + # Code from module set: + # Code from module setenv: + # Code from module setlocale-null: + # Code from module sigaction: + # Code from module signal-h: + # Code from module sigpipe: + # Code from module sigprocmask: + # Code from module size_max: + # Code from module sleep: + # Code from module snippet/_Noreturn: + # Code from module snippet/arg-nonnull: + # Code from module snippet/c++defs: + # Code from module snippet/warn-on-use: + # Code from module socketlib: + # Code from module sockets: + # Code from module socklen: + # Code from module ssize_t: + # Code from module stat: + # Code from module stat-time: + # Code from module std-gnu11: + # Code from module stdarg: + dnl Some compilers (e.g., AIX 5.3 cc) need to be in c99 mode + dnl for the builtin va_copy to work. gl_PROG_CC_C99 arranges for this. + gl_PROG_CC_C99 + # Code from module stdbool: + # Code from module stdckdint: + # Code from module stddef: + # Code from module stdint: + # Code from module stdio: + gl_STDIO_H_EARLY + # Code from module stdlib: + # Code from module stdopen: + # Code from module stpcpy: + # Code from module strcase: + # Code from module strcasestr: + # Code from module strcasestr-simple: + # Code from module strchrnul: + # Code from module strdup-posix: + # Code from module streq: + # Code from module strerror: + # Code from module strerror-override: + # Code from module string: + # Code from module strings: + # Code from module strndup: + # Code from module strnlen: + # Code from module strnlen1: + # Code from module strsep: + # Code from module sys_file: + # Code from module sys_ioctl: + # Code from module sys_random: + # Code from module sys_select: + # Code from module sys_socket: + # Code from module sys_stat: + # Code from module sys_time: + # Code from module sys_types: + # Code from module sys_uio: + # Code from module sysexits: + # Code from module tempname: + # Code from module termios: + # Code from module threadlib: + gl_THREADLIB_EARLY + # Code from module time-h: + # Code from module timespec: + # Code from module unistd: + # Code from module unistd-safer: + # Code from module unlink: + # Code from module unlinkat: + # Code from module utime: + # Code from module utime-h: + # Code from module utimens: + # Code from module vararrays: + # Code from module vasnprintf: + # Code from module vasprintf: + # Code from module verify: + # Code from module verror: + # Code from module vsnprintf: + # Code from module warnings: + # Code from module wchar: + # Code from module wcrtomb: + # Code from module wctype-h: + # Code from module windows-mutex: + # Code from module windows-once: + # Code from module windows-recmutex: + # Code from module windows-rwlock: + # Code from module wmemchr: + # Code from module wmempcpy: + # Code from module xalloc: + # Code from module xalloc-die: + # Code from module xalloc-oversized: + # Code from module xgetcwd: + # Code from module xlist: + # Code from module xmap: + # Code from module xset: + # Code from module xsize: + # Code from module xstdopen: + # Code from module xstrndup: + # Code from module xvasprintf: + # Code from module year2038-recommended: + AC_REQUIRE([AC_SYS_YEAR2038_RECOMMENDED]) +]) + +# This macro should be invoked from ./configure.ac, in the section +# "Check for header files, types and library functions". +AC_DEFUN([gl_INIT], +[ + AC_CONFIG_LIBOBJ_DIR([gl/lib]) + AM_CONDITIONAL([GL_COND_LIBTOOL], [true]) + gl_cond_libtool=true + gl_m4_base='gl/m4' + m4_pushdef([AC_LIBOBJ], m4_defn([gl_LIBOBJ])) + m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gl_REPLACE_FUNCS])) + m4_pushdef([AC_LIBSOURCES], m4_defn([gl_LIBSOURCES])) + m4_pushdef([gl_LIBSOURCES_LIST], []) + m4_pushdef([gl_LIBSOURCES_DIR], []) + m4_pushdef([GL_MACRO_PREFIX], [gl]) + m4_pushdef([GL_MODULE_INDICATOR_PREFIX], [GL]) + gl_COMMON + gl_source_base='gl/lib' + gl_source_base_prefix= + gl_ALIGNASOF +changequote(,)dnl +LTALLOCA=`echo "$ALLOCA" | sed -e 's/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'` +changequote([, ])dnl +AC_SUBST([LTALLOCA]) + gl_FUNC_ALLOCA + gl_CONDITIONAL_HEADER([alloca.h]) + AC_PROG_MKDIR_P + gl_ARGP + m4_ifdef([AM_XGETTEXT_OPTION], + [AM_][XGETTEXT_OPTION([--flag=argp_error:2:c-format]) + AM_][XGETTEXT_OPTION([--flag=argp_failure:4:c-format])]) + gl_ASSERT_H + gl_CONDITIONAL_HEADER([assert.h]) + AC_PROG_MKDIR_P + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_FUNC_BTOWC + gl_CONDITIONAL([GL_COND_OBJ_BTOWC], + [test $HAVE_BTOWC = 0 || test $REPLACE_BTOWC = 1]) + AM_COND_IF([GL_COND_OBJ_BTOWC], [ + gl_PREREQ_BTOWC + ]) + gl_WCHAR_MODULE_INDICATOR([btowc]) + gl___BUILTIN_EXPECT + gl_FUNC_CALLOC_GNU + if test $REPLACE_CALLOC_FOR_CALLOC_GNU = 1; then + AC_LIBOBJ([calloc]) + fi + gl_STDLIB_MODULE_INDICATOR([calloc-gnu]) + gl_FUNC_CALLOC_POSIX + if test $REPLACE_CALLOC_FOR_CALLOC_POSIX = 1; then + AC_LIBOBJ([calloc]) + fi + gl_STDLIB_MODULE_INDICATOR([calloc-posix]) + gl_FUNC_CANONICALIZE_FILENAME_MODE + gl_MODULE_INDICATOR([canonicalize]) + gl_MODULE_INDICATOR_FOR_TESTS([canonicalize]) + gl_STDLIB_MODULE_INDICATOR([canonicalize_file_name]) + gl_CANONICALIZE_LGPL + gl_CONDITIONAL([GL_COND_OBJ_CANONICALIZE_LGPL], + [test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1]) + gl_MODULE_INDICATOR([canonicalize-lgpl]) + gl_STDLIB_MODULE_INDICATOR([canonicalize_file_name]) + gl_STDLIB_MODULE_INDICATOR([realpath]) + gl_UNISTD_MODULE_INDICATOR([chdir]) + gl_FUNC_CHDIR_LONG + gl_CONDITIONAL([GL_COND_OBJ_CHDIR_LONG], + [test $gl_cv_have_unlimited_file_name_length = no]) + AM_COND_IF([GL_COND_OBJ_CHDIR_LONG], [ + gl_PREREQ_CHDIR_LONG + ]) + gl_FUNC_CHOWN + gl_CONDITIONAL([GL_COND_OBJ_CHOWN], + [test $HAVE_CHOWN = 0 || test $REPLACE_CHOWN = 1]) + gl_CONDITIONAL([GL_COND_OBJ_FCHOWN_STUB], + [test $REPLACE_CHOWN = 1 && test $ac_cv_func_fchown = no]) + gl_UNISTD_MODULE_INDICATOR([chown]) + gl_CLOCK_TIME + gl_MODULE_INDICATOR_FOR_TESTS([cloexec]) + gl_FUNC_CLOSE + gl_CONDITIONAL([GL_COND_OBJ_CLOSE], [test $REPLACE_CLOSE = 1]) + gl_UNISTD_MODULE_INDICATOR([close]) + gl_FUNC_CLOSEDIR + gl_CONDITIONAL([GL_COND_OBJ_CLOSEDIR], + [test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1]) + gl_DIRENT_MODULE_INDICATOR([closedir]) + gl_CTYPE_H + gl_CTYPE_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_CHECK_TYPE_STRUCT_DIRENT_D_INO + gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE + gl_DIRENT_H + gl_DIRENT_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_DIRFD + gl_CONDITIONAL([GL_COND_OBJ_DIRFD], + [test $HAVE_DIRFD = 0 || test $REPLACE_DIRFD = 1]) + AM_COND_IF([GL_COND_OBJ_DIRFD], [ + gl_PREREQ_DIRFD + ]) + gl_DIRENT_MODULE_INDICATOR([dirfd]) + gl_MODULE_INDICATOR([dirname]) + gl_DOUBLE_SLASH_ROOT + gl_FUNC_DUP + gl_CONDITIONAL([GL_COND_OBJ_DUP], [test $REPLACE_DUP = 1]) + AM_COND_IF([GL_COND_OBJ_DUP], [ + gl_PREREQ_DUP + ]) + gl_UNISTD_MODULE_INDICATOR([dup]) + gl_FUNC_DUP2 + gl_CONDITIONAL([GL_COND_OBJ_DUP2], [test $REPLACE_DUP2 = 1]) + AM_COND_IF([GL_COND_OBJ_DUP2], [ + gl_PREREQ_DUP2 + ]) + gl_UNISTD_MODULE_INDICATOR([dup2]) + gl_ENVIRON + gl_UNISTD_MODULE_INDICATOR([environ]) + gl_HEADER_ERRNO_H + gl_CONDITIONAL_HEADER([errno.h]) + AC_PROG_MKDIR_P + AC_REQUIRE([gl_ERROR_H]) + gl_ERROR + gl_CONDITIONAL([GL_COND_OBJ_ERROR], [test $COMPILE_ERROR_C = 1]) + AM_COND_IF([GL_COND_OBJ_ERROR], [ + gl_PREREQ_ERROR + ]) + m4_ifdef([AM_XGETTEXT_OPTION], + [AM_][XGETTEXT_OPTION([--flag=error:3:c-format]) + AM_][XGETTEXT_OPTION([--flag=error_at_line:5:c-format])]) + gl_ERROR_H + AC_PROG_MKDIR_P + AC_REQUIRE([gl_EXTERN_INLINE]) + gl_FUNC_FCHDIR + gl_CONDITIONAL([GL_COND_OBJ_FCHDIR], [test $HAVE_FCHDIR = 0]) + AM_COND_IF([GL_COND_OBJ_FCHDIR], [ + gl_PREREQ_FCHDIR + ]) + gl_UNISTD_MODULE_INDICATOR([fchdir]) + gl_FUNC_FCNTL + gl_CONDITIONAL([GL_COND_OBJ_FCNTL], + [test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1]) + gl_FCNTL_MODULE_INDICATOR([fcntl]) + gl_FCNTL_H + gl_FCNTL_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_MODULE_INDICATOR([fd-safer-flag]) + gl_FUNC_FDOPENDIR + gl_CONDITIONAL([GL_COND_OBJ_FDOPENDIR], + [test $HAVE_FDOPENDIR = 0 || test $REPLACE_FDOPENDIR = 1]) + gl_DIRENT_MODULE_INDICATOR([fdopendir]) + gl_MODULE_INDICATOR([fdopendir]) + gl_FILE_NAME_CONCAT_LGPL + AC_C_FLEXIBLE_ARRAY_MEMBER + gl_FLOAT_H + gl_CONDITIONAL_HEADER([float.h]) + AC_PROG_MKDIR_P + gl_CONDITIONAL([GL_COND_OBJ_FLOAT], [test $REPLACE_FLOAT_LDBL = 1]) + gl_CONDITIONAL([GL_COND_OBJ_ITOLD], [test $REPLACE_ITOLD = 1]) + gl_FUNC_FLOCK + gl_CONDITIONAL([GL_COND_OBJ_FLOCK], [test $HAVE_FLOCK = 0]) + AM_COND_IF([GL_COND_OBJ_FLOCK], [ + gl_PREREQ_FLOCK + ]) + gl_SYS_FILE_MODULE_INDICATOR([flock]) + gl_FUNC_FNMATCH_POSIX + dnl Because of gl_REPLACE_FNMATCH_H: + gl_CONDITIONAL_HEADER([fnmatch.h]) + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then + AC_LIBOBJ([fnmatch]) + gl_PREREQ_FNMATCH + fi + gl_FNMATCH_MODULE_INDICATOR([fnmatch]) + gl_FUNC_FNMATCH_GNU + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then + AC_LIBOBJ([fnmatch]) + gl_PREREQ_FNMATCH + fi + gl_MODULE_INDICATOR([fnmatch-gnu]) + gl_FNMATCH_H + gl_FNMATCH_H_REQUIRE_DEFAULTS + gl_CONDITIONAL_HEADER([fnmatch.h]) + AC_PROG_MKDIR_P + gl_FUNC_FREE + gl_CONDITIONAL([GL_COND_OBJ_FREE], [test $REPLACE_FREE = 1]) + AM_COND_IF([GL_COND_OBJ_FREE], [ + gl_PREREQ_FREE + ]) + gl_STDLIB_MODULE_INDICATOR([free-posix]) + gl_FUNC_FSTAT + gl_CONDITIONAL([GL_COND_OBJ_FSTAT], [test $REPLACE_FSTAT = 1]) + AM_COND_IF([GL_COND_OBJ_FSTAT], [ + case "$host_os" in + mingw*) + AC_LIBOBJ([stat-w32]) + ;; + esac + gl_PREREQ_FSTAT + ]) + gl_SYS_STAT_MODULE_INDICATOR([fstat]) + gl_FUNC_FSTATAT + gl_CONDITIONAL([GL_COND_OBJ_FSTATAT], + [test $HAVE_FSTATAT = 0 || test $REPLACE_FSTATAT = 1]) + gl_SYS_STAT_MODULE_INDICATOR([fstatat]) + gl_FUNC_GETCWD + gl_CONDITIONAL([GL_COND_OBJ_GETCWD], [test $REPLACE_GETCWD = 1]) + AM_COND_IF([GL_COND_OBJ_GETCWD], [ + gl_PREREQ_GETCWD + ]) + gl_MODULE_INDICATOR([getcwd]) + gl_UNISTD_MODULE_INDICATOR([getcwd]) + gl_FUNC_GETCWD_LGPL + gl_CONDITIONAL([GL_COND_OBJ_GETCWD_LGPL], [test $REPLACE_GETCWD = 1]) + gl_UNISTD_MODULE_INDICATOR([getcwd]) + gl_FUNC_GETDELIM + gl_CONDITIONAL([GL_COND_OBJ_GETDELIM], + [test $HAVE_GETDELIM = 0 || test $REPLACE_GETDELIM = 1]) + AM_COND_IF([GL_COND_OBJ_GETDELIM], [ + gl_PREREQ_GETDELIM + ]) + gl_STDIO_MODULE_INDICATOR([getdelim]) + gl_FUNC_GETDTABLESIZE + gl_CONDITIONAL([GL_COND_OBJ_GETDTABLESIZE], + [test $HAVE_GETDTABLESIZE = 0 || test $REPLACE_GETDTABLESIZE = 1]) + AM_COND_IF([GL_COND_OBJ_GETDTABLESIZE], [ + gl_PREREQ_GETDTABLESIZE + ]) + gl_UNISTD_MODULE_INDICATOR([getdtablesize]) + gl_FUNC_GETLINE + gl_CONDITIONAL([GL_COND_OBJ_GETLINE], [test $REPLACE_GETLINE = 1]) + AM_COND_IF([GL_COND_OBJ_GETLINE], [ + gl_PREREQ_GETLINE + ]) + gl_STDIO_MODULE_INDICATOR([getline]) + gl_FUNC_GETLOGIN_R + gl_CONDITIONAL([GL_COND_OBJ_GETLOGIN_R], + [test $HAVE_GETLOGIN_R = 0 || test $REPLACE_GETLOGIN_R = 1]) + AM_COND_IF([GL_COND_OBJ_GETLOGIN_R], [ + gl_PREREQ_GETLOGIN_R + ]) + gl_UNISTD_MODULE_INDICATOR([getlogin_r]) + AC_REQUIRE([gl_LIB_GETLOGIN]) + gl_FUNC_GETOPT_GNU + dnl Because of the way gl_FUNC_GETOPT_GNU is implemented (the gl_getopt_required + dnl mechanism), there is no need to do any AC_LIBOBJ or AC_SUBST here; they are + dnl done in the getopt-posix module. + gl_FUNC_GETOPT_POSIX + gl_CONDITIONAL_HEADER([getopt.h]) + gl_CONDITIONAL_HEADER([getopt-cdefs.h]) + AC_PROG_MKDIR_P + gl_CONDITIONAL([GL_COND_OBJ_GETOPT], [test $REPLACE_GETOPT = 1]) + AM_COND_IF([GL_COND_OBJ_GETOPT], [ + dnl Define the substituted variable GNULIB_UNISTD_H_GETOPT to 1. + gl_UNISTD_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_GETOPT], [1]) + ]) + gl_UNISTD_MODULE_INDICATOR([getopt-posix]) + gl_FUNC_GETPROGNAME + gl_CONDITIONAL([GL_COND_OBJ_GETPROGNAME], + [test $HAVE_GETPROGNAME = 0 || test $REPLACE_GETPROGNAME = 1]) + AM_COND_IF([GL_COND_OBJ_GETPROGNAME], [ + gl_PREREQ_GETPROGNAME + ]) + gl_STDLIB_MODULE_INDICATOR([getprogname]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_FUNC_GETRANDOM + gl_CONDITIONAL([GL_COND_OBJ_GETRANDOM], + [test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1]) + gl_SYS_RANDOM_MODULE_INDICATOR([getrandom]) + AC_SUBST([LIBINTL]) + AC_SUBST([LTLIBINTL]) + gl_GETTIME + gl_FUNC_GETTIMEOFDAY + gl_CONDITIONAL([GL_COND_OBJ_GETTIMEOFDAY], + [test $HAVE_GETTIMEOFDAY = 0 || test $REPLACE_GETTIMEOFDAY = 1]) + AM_COND_IF([GL_COND_OBJ_GETTIMEOFDAY], [ + gl_PREREQ_GETTIMEOFDAY + ]) + gl_SYS_TIME_MODULE_INDICATOR([gettimeofday]) + AC_PROG_MKDIR_P + AC_PROG_MKDIR_P + gl_GLOB + dnl Because of gl_REPLACE_GLOB_H: + gl_CONDITIONAL_HEADER([glob.h]) + gl_CONDITIONAL([GL_COND_OBJ_GLOB], + [test $HAVE_GLOB = 0 || test $REPLACE_GLOB = 1]) + AM_COND_IF([GL_COND_OBJ_GLOB], [ + gl_PREREQ_GLOB + ]) + gl_CONDITIONAL([GL_COND_OBJ_GLOB_PATTERN_P], + [test $HAVE_GLOB_PATTERN_P = 0 || test $REPLACE_GLOB_PATTERN_P = 1]) + gl_GLOB_MODULE_INDICATOR([glob]) + gl_GLOB_H + gl_GLOB_H_REQUIRE_DEFAULTS + gl_CONDITIONAL_HEADER([glob.h]) + AC_PROG_MKDIR_P + AC_REQUIRE([gl_FUNC_SETLOCALE_NULL]) + HARD_LOCALE_LIB="$SETLOCALE_NULL_LIB" + AC_SUBST([HARD_LOCALE_LIB]) + dnl For backward compatibility. + LIB_HARD_LOCALE="$HARD_LOCALE_LIB" + AC_SUBST([LIB_HARD_LOCALE]) + AC_DEFUN([gl_HAVE_MODULE_HAVELIB]) + gl_IDPRIV + gl_IDPRIV + gl_INTTYPES_INCOMPLETE + gl_INTTYPES_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_IOCTL + gl_CONDITIONAL([GL_COND_OBJ_IOCTL], + [test $HAVE_IOCTL = 0 || test $REPLACE_IOCTL = 1]) + gl_SYS_IOCTL_MODULE_INDICATOR([ioctl]) + gl_FUNC_ISBLANK + gl_CONDITIONAL([GL_COND_OBJ_ISBLANK], [test $HAVE_ISBLANK = 0]) + gl_MODULE_INDICATOR([isblank]) + gl_CTYPE_MODULE_INDICATOR([isblank]) + gl_LANGINFO_H + gl_LANGINFO_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + AC_REQUIRE([gl_LARGEFILE]) + gl_FUNC_LCHOWN + gl_CONDITIONAL([GL_COND_OBJ_LCHOWN], + [test $HAVE_LCHOWN = 0 || test $REPLACE_LCHOWN = 1]) + gl_UNISTD_MODULE_INDICATOR([lchown]) + gl_IGNORE_UNUSED_LIBRARIES + gl___INLINE + gl_LIMITS_H + gl_CONDITIONAL_HEADER([limits.h]) + AC_PROG_MKDIR_P + gl_LOCALCHARSET + dnl For backward compatibility. Some packages still use this. + LOCALCHARSET_TESTS_ENVIRONMENT= + AC_SUBST([LOCALCHARSET_TESTS_ENVIRONMENT]) + gl_LOCALE_H + gl_LOCALE_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_LOCALECONV + gl_CONDITIONAL([GL_COND_OBJ_LOCALECONV], [test $REPLACE_LOCALECONV = 1]) + AM_COND_IF([GL_COND_OBJ_LOCALECONV], [ + gl_PREREQ_LOCALECONV + ]) + gl_LOCALE_MODULE_INDICATOR([localeconv]) + gl_LOCK + gl_MODULE_INDICATOR([lock]) + gl_FUNC_LSTAT + gl_CONDITIONAL([GL_COND_OBJ_LSTAT], [test $REPLACE_LSTAT = 1]) + AM_COND_IF([GL_COND_OBJ_LSTAT], [ + gl_PREREQ_LSTAT + ]) + gl_SYS_STAT_MODULE_INDICATOR([lstat]) + gl_FUNC_MALLOC_GNU + if test $REPLACE_MALLOC_FOR_MALLOC_GNU = 1; then + AC_LIBOBJ([malloc]) + fi + gl_STDLIB_MODULE_INDICATOR([malloc-gnu]) + AC_REQUIRE([gl_FUNC_MALLOC_POSIX]) + if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then + AC_LIBOBJ([malloc]) + fi + gl_STDLIB_MODULE_INDICATOR([malloc-posix]) + gl_MALLOCA + gl_FUNC_MBRTOWC + gl_CONDITIONAL([GL_COND_OBJ_MBRTOWC], + [test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1]) + AM_COND_IF([GL_COND_OBJ_MBRTOWC], [ + if test $REPLACE_MBSTATE_T = 1; then + AC_LIBOBJ([lc-charset-dispatch]) + AC_LIBOBJ([mbtowc-lock]) + gl_PREREQ_MBTOWC_LOCK + fi + gl_PREREQ_MBRTOWC + ]) + gl_WCHAR_MODULE_INDICATOR([mbrtowc]) + gl_FUNC_MBSINIT + gl_CONDITIONAL([GL_COND_OBJ_MBSINIT], + [test $HAVE_MBSINIT = 0 || test $REPLACE_MBSINIT = 1]) + AM_COND_IF([GL_COND_OBJ_MBSINIT], [ + gl_PREREQ_MBSINIT + ]) + gl_WCHAR_MODULE_INDICATOR([mbsinit]) + gl_FUNC_MBSRTOWCS + gl_CONDITIONAL([GL_COND_OBJ_MBSRTOWCS], + [test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1]) + AM_COND_IF([GL_COND_OBJ_MBSRTOWCS], [ + AC_LIBOBJ([mbsrtowcs-state]) + gl_PREREQ_MBSRTOWCS + ]) + gl_WCHAR_MODULE_INDICATOR([mbsrtowcs]) + gl_FUNC_MBTOWC + gl_CONDITIONAL([GL_COND_OBJ_MBTOWC], + [test $HAVE_MBTOWC = 0 || test $REPLACE_MBTOWC = 1]) + AM_COND_IF([GL_COND_OBJ_MBTOWC], [ + gl_PREREQ_MBTOWC + ]) + gl_STDLIB_MODULE_INDICATOR([mbtowc]) + gl_FUNC_MEMCHR + gl_CONDITIONAL([GL_COND_OBJ_MEMCHR], [test $REPLACE_MEMCHR = 1]) + AM_COND_IF([GL_COND_OBJ_MEMCHR], [ + gl_PREREQ_MEMCHR + ]) + gl_STRING_MODULE_INDICATOR([memchr]) + gl_FUNC_MEMMEM + if test $HAVE_MEMMEM = 0 || test $REPLACE_MEMMEM = 1; then + AC_LIBOBJ([memmem]) + fi + gl_FUNC_MEMMEM_SIMPLE + if test $HAVE_MEMMEM = 0 || test $REPLACE_MEMMEM = 1; then + AC_LIBOBJ([memmem]) + fi + gl_STRING_MODULE_INDICATOR([memmem]) + gl_FUNC_MEMPCPY + gl_CONDITIONAL([GL_COND_OBJ_MEMPCPY], + [test $HAVE_MEMPCPY = 0 || test $REPLACE_MEMPCPY = 1]) + AM_COND_IF([GL_COND_OBJ_MEMPCPY], [ + gl_PREREQ_MEMPCPY + ]) + gl_STRING_MODULE_INDICATOR([mempcpy]) + gl_FUNC_MEMRCHR + gl_CONDITIONAL([GL_COND_OBJ_MEMRCHR], [test $ac_cv_func_memrchr = no]) + AM_COND_IF([GL_COND_OBJ_MEMRCHR], [ + gl_PREREQ_MEMRCHR + ]) + gl_STRING_MODULE_INDICATOR([memrchr]) + gl_MINMAX + gl_FUNC_MKDIR + gl_CONDITIONAL([GL_COND_OBJ_MKDIR], [test $REPLACE_MKDIR = 1]) + gl_SYS_STAT_MODULE_INDICATOR([mkdir]) + gl_FUNC_MKDTEMP + gl_CONDITIONAL([GL_COND_OBJ_MKDTEMP], [test $HAVE_MKDTEMP = 0]) + AM_COND_IF([GL_COND_OBJ_MKDTEMP], [ + gl_PREREQ_MKDTEMP + ]) + gl_STDLIB_MODULE_INDICATOR([mkdtemp]) + gl_FUNC_MKSTEMP + gl_CONDITIONAL([GL_COND_OBJ_MKSTEMP], + [test $HAVE_MKSTEMP = 0 || test $REPLACE_MKSTEMP = 1]) + AM_COND_IF([GL_COND_OBJ_MKSTEMP], [ + gl_PREREQ_MKSTEMP + ]) + gl_STDLIB_MODULE_INDICATOR([mkstemp]) + AC_REQUIRE([gl_MSVC_INVAL]) + gl_CONDITIONAL([GL_COND_OBJ_MSVC_INVAL], + [test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1]) + AC_REQUIRE([gl_MSVC_NOTHROW]) + gl_CONDITIONAL([GL_COND_OBJ_MSVC_NOTHROW], + [test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1]) + gl_MODULE_INDICATOR([msvc-nothrow]) + gl_MULTIARCH + gl_FUNC_NANOSLEEP + gl_CONDITIONAL([GL_COND_OBJ_NANOSLEEP], + [test $HAVE_NANOSLEEP = 0 || test $REPLACE_NANOSLEEP = 1]) + gl_TIME_MODULE_INDICATOR([nanosleep]) + gl_FUNC_NL_LANGINFO + gl_CONDITIONAL([GL_COND_OBJ_NL_LANGINFO], + [test $HAVE_NL_LANGINFO = 0 || test $REPLACE_NL_LANGINFO = 1]) + gl_CONDITIONAL([GL_COND_OBJ_NL_LANGINFO_LOCK], + [test $REPLACE_NL_LANGINFO = 1 && test $NL_LANGINFO_MTSAFE = 0]) + if test $REPLACE_NL_LANGINFO = 1 && test $NL_LANGINFO_MTSAFE = 0; then + gl_PREREQ_NL_LANGINFO_LOCK + fi + gl_LANGINFO_MODULE_INDICATOR([nl_langinfo]) + gl_NONBLOCKING_IO + gl_FCNTL_MODULE_INDICATOR([nonblocking]) + dnl Define the C macro GNULIB_NONBLOCKING to 1. + gl_MODULE_INDICATOR([nonblocking]) + dnl Define the substituted variable GNULIB_STDIO_H_NONBLOCKING to 1. + gl_STDIO_H_REQUIRE_DEFAULTS + AC_REQUIRE([gl_ASM_SYMBOL_PREFIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_NONBLOCKING], [1]) + dnl Define the substituted variable GNULIB_UNISTD_H_NONBLOCKING to 1. + gl_UNISTD_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_NONBLOCKING], [1]) + gl_FUNC_OPEN + gl_CONDITIONAL([GL_COND_OBJ_OPEN], [test $REPLACE_OPEN = 1]) + AM_COND_IF([GL_COND_OBJ_OPEN], [ + gl_PREREQ_OPEN + ]) + gl_FCNTL_MODULE_INDICATOR([open]) + gl_FUNC_OPENAT + gl_CONDITIONAL([GL_COND_OBJ_OPENAT], + [test $HAVE_OPENAT = 0 || test $REPLACE_OPENAT = 1]) + AM_COND_IF([GL_COND_OBJ_OPENAT], [ + gl_PREREQ_OPENAT + ]) + gl_MODULE_INDICATOR([openat]) dnl for lib/getcwd.c + gl_FCNTL_MODULE_INDICATOR([openat]) + gl_FUNC_OPENDIR + gl_CONDITIONAL([GL_COND_OBJ_OPENDIR], + [test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1]) + gl_DIRENT_MODULE_INDICATOR([opendir]) + gl_PATHMAX + gl_FUNC_PIPE + gl_CONDITIONAL([GL_COND_OBJ_PIPE], [test $HAVE_PIPE = 0]) + gl_UNISTD_MODULE_INDICATOR([pipe]) + AC_CHECK_DECLS([program_invocation_name], [], [], [#include <errno.h>]) + AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include <errno.h>]) + gl_FUNC_PSELECT + gl_CONDITIONAL([GL_COND_OBJ_PSELECT], + [test $HAVE_PSELECT = 0 || test $REPLACE_PSELECT = 1]) + gl_SYS_SELECT_MODULE_INDICATOR([pselect]) + gl_FUNC_PTHREAD_SIGMASK + gl_CONDITIONAL([GL_COND_OBJ_PTHREAD_SIGMASK], + [test $HAVE_PTHREAD_SIGMASK = 0 || test $REPLACE_PTHREAD_SIGMASK = 1]) + AM_COND_IF([GL_COND_OBJ_PTHREAD_SIGMASK], [ + gl_PREREQ_PTHREAD_SIGMASK + ]) + gl_SIGNAL_MODULE_INDICATOR([pthread_sigmask]) + gl_FUNC_RAISE + gl_CONDITIONAL([GL_COND_OBJ_RAISE], + [test $HAVE_RAISE = 0 || test $REPLACE_RAISE = 1]) + AM_COND_IF([GL_COND_OBJ_RAISE], [ + gl_PREREQ_RAISE + ]) + gl_SIGNAL_MODULE_INDICATOR([raise]) + gl_FUNC_RAWMEMCHR + gl_CONDITIONAL([GL_COND_OBJ_RAWMEMCHR], [test $HAVE_RAWMEMCHR = 0]) + AM_COND_IF([GL_COND_OBJ_RAWMEMCHR], [ + gl_PREREQ_RAWMEMCHR + ]) + gl_STRING_MODULE_INDICATOR([rawmemchr]) + gl_FUNC_READDIR + gl_CONDITIONAL([GL_COND_OBJ_READDIR], + [test $HAVE_READDIR = 0 || test $REPLACE_READDIR = 1]) + gl_DIRENT_MODULE_INDICATOR([readdir]) + gl_FUNC_READLINK + gl_CONDITIONAL([GL_COND_OBJ_READLINK], + [test $HAVE_READLINK = 0 || test $REPLACE_READLINK = 1]) + AM_COND_IF([GL_COND_OBJ_READLINK], [ + gl_PREREQ_READLINK + ]) + gl_UNISTD_MODULE_INDICATOR([readlink]) + gl_FUNC_READLINKAT + gl_CONDITIONAL([GL_COND_OBJ_READLINKAT], + [test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1]) + gl_UNISTD_MODULE_INDICATOR([readlinkat]) + gl_FUNC_REALLOC_GNU + if test $REPLACE_REALLOC_FOR_REALLOC_GNU = 1; then + AC_LIBOBJ([realloc]) + fi + gl_STDLIB_MODULE_INDICATOR([realloc-gnu]) + gl_FUNC_REALLOC_POSIX + if test $REPLACE_REALLOC_FOR_REALLOC_POSIX = 1; then + AC_LIBOBJ([realloc]) + fi + gl_STDLIB_MODULE_INDICATOR([realloc-posix]) + gl_FUNC_REALLOCARRAY + gl_CONDITIONAL([GL_COND_OBJ_REALLOCARRAY], + [test $HAVE_REALLOCARRAY = 0 || test $REPLACE_REALLOCARRAY = 1]) + AM_COND_IF([GL_COND_OBJ_REALLOCARRAY], [ + gl_PREREQ_REALLOCARRAY + ]) + gl_MODULE_INDICATOR([reallocarray]) + gl_STDLIB_MODULE_INDICATOR([reallocarray]) + gl_REGEX + gl_CONDITIONAL([GL_COND_OBJ_REGEX], [test $ac_use_included_regex = yes]) + AM_COND_IF([GL_COND_OBJ_REGEX], [ + gl_PREREQ_REGEX + ]) + gl_FUNC_RENAME + gl_CONDITIONAL([GL_COND_OBJ_RENAME], [test $REPLACE_RENAME = 1]) + gl_STDIO_MODULE_INDICATOR([rename]) + gl_FUNC_RENAMEAT + gl_CONDITIONAL([GL_COND_OBJ_RENAMEAT], + [test $HAVE_RENAMEAT = 0 || test $REPLACE_RENAMEAT = 1]) + if test $HAVE_RENAMEAT = 0; then + AC_LIBOBJ([at-func2]) + fi + gl_STDIO_MODULE_INDICATOR([renameat]) + gl_FUNC_RENAMEAT + if test $HAVE_RENAMEAT = 0; then + AC_LIBOBJ([at-func2]) + fi + gl_FUNC_REWINDDIR + gl_CONDITIONAL([GL_COND_OBJ_REWINDDIR], + [test $HAVE_REWINDDIR = 0 || test $REPLACE_REWINDDIR = 1]) + gl_DIRENT_MODULE_INDICATOR([rewinddir]) + gl_FUNC_RMDIR + gl_CONDITIONAL([GL_COND_OBJ_RMDIR], [test $REPLACE_RMDIR = 1]) + gl_UNISTD_MODULE_INDICATOR([rmdir]) + gl_SAVE_CWD + gl_FUNC_SELECT + gl_CONDITIONAL([GL_COND_OBJ_SELECT], [test $REPLACE_SELECT = 1]) + gl_SYS_SELECT_MODULE_INDICATOR([select]) + gl_FUNC_SETENV + gl_CONDITIONAL([GL_COND_OBJ_SETENV], + [test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1]) + gl_STDLIB_MODULE_INDICATOR([setenv]) + gl_FUNC_SETLOCALE_NULL + gl_CONDITIONAL([GL_COND_OBJ_SETLOCALE_LOCK], + [test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0]) + AM_COND_IF([GL_COND_OBJ_SETLOCALE_LOCK], [ + gl_PREREQ_SETLOCALE_LOCK + ]) + gl_LOCALE_MODULE_INDICATOR([setlocale_null]) + gl_SIGACTION + gl_CONDITIONAL([GL_COND_OBJ_SIGACTION], [test $HAVE_SIGACTION = 0]) + AM_COND_IF([GL_COND_OBJ_SIGACTION], [ + gl_PREREQ_SIGACTION + ]) + gl_SIGNAL_MODULE_INDICATOR([sigaction]) + gl_SIGNAL_H + gl_SIGNAL_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SIGNAL_SIGPIPE + dnl Define the C macro GNULIB_SIGPIPE to 1. + gl_MODULE_INDICATOR([sigpipe]) + dnl Define the substituted variable GNULIB_SIGNAL_H_SIGPIPE to 1. + gl_SIGNAL_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGNAL_H_SIGPIPE], [1]) + dnl Define the substituted variable GNULIB_STDIO_H_SIGPIPE to 1. + gl_STDIO_H_REQUIRE_DEFAULTS + AC_REQUIRE([gl_ASM_SYMBOL_PREFIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_SIGPIPE], [1]) + dnl Define the substituted variable GNULIB_UNISTD_H_SIGPIPE to 1. + gl_UNISTD_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_SIGPIPE], [1]) + gl_SIGNALBLOCKING + gl_CONDITIONAL([GL_COND_OBJ_SIGPROCMASK], [test $HAVE_POSIX_SIGNALBLOCKING = 0]) + AM_COND_IF([GL_COND_OBJ_SIGPROCMASK], [ + gl_PREREQ_SIGPROCMASK + ]) + gl_SIGNAL_MODULE_INDICATOR([sigprocmask]) + gl_SIZE_MAX + gl_FUNC_SLEEP + gl_CONDITIONAL([GL_COND_OBJ_SLEEP], + [test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1]) + gl_UNISTD_MODULE_INDICATOR([sleep]) + AC_REQUIRE([gl_SOCKETLIB]) + AC_REQUIRE([gl_SOCKETS]) + gl_TYPE_SOCKLEN_T + gt_TYPE_SSIZE_T + gl_FUNC_STAT + gl_CONDITIONAL([GL_COND_OBJ_STAT], [test $REPLACE_STAT = 1]) + AM_COND_IF([GL_COND_OBJ_STAT], [ + case "$host_os" in + mingw*) + AC_LIBOBJ([stat-w32]) + ;; + esac + gl_PREREQ_STAT + ]) + gl_SYS_STAT_MODULE_INDICATOR([stat]) + gl_STAT_TIME + gl_STAT_BIRTHTIME + gl_STDARG_H + gl_CONDITIONAL_HEADER([stdarg.h]) + AC_PROG_MKDIR_P + gl_C_BOOL + AC_CHECK_HEADERS_ONCE([stdckdint.h]) + if test $ac_cv_header_stdckdint_h = yes; then + GL_GENERATE_STDCKDINT_H=false + else + GL_GENERATE_STDCKDINT_H=true + fi + gl_CONDITIONAL_HEADER([stdckdint.h]) + AC_PROG_MKDIR_P + gl_STDDEF_H + gl_STDDEF_H_REQUIRE_DEFAULTS + gl_CONDITIONAL_HEADER([stddef.h]) + AC_PROG_MKDIR_P + gl_STDINT_H + gl_CONDITIONAL_HEADER([stdint.h]) + dnl Because of gl_REPLACE_LIMITS_H: + gl_CONDITIONAL_HEADER([limits.h]) + AC_PROG_MKDIR_P + gl_STDIO_H + gl_STDIO_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_CONDITIONAL([GL_COND_OBJ_STDIO_READ], [test $REPLACE_STDIO_READ_FUNCS = 1]) + gl_CONDITIONAL([GL_COND_OBJ_STDIO_WRITE], [test $REPLACE_STDIO_WRITE_FUNCS = 1]) + dnl No need to create extra modules for these functions. Everyone who uses + dnl <stdio.h> likely needs them. + gl_STDIO_MODULE_INDICATOR([fscanf]) + gl_MODULE_INDICATOR([fscanf]) + gl_STDIO_MODULE_INDICATOR([scanf]) + gl_MODULE_INDICATOR([scanf]) + gl_STDIO_MODULE_INDICATOR([fgetc]) + gl_STDIO_MODULE_INDICATOR([getc]) + gl_STDIO_MODULE_INDICATOR([getchar]) + gl_STDIO_MODULE_INDICATOR([fgets]) + gl_STDIO_MODULE_INDICATOR([fread]) + dnl No need to create extra modules for these functions. Everyone who uses + dnl <stdio.h> likely needs them. + gl_STDIO_MODULE_INDICATOR([fprintf]) + gl_STDIO_MODULE_INDICATOR([printf]) + gl_STDIO_MODULE_INDICATOR([vfprintf]) + gl_STDIO_MODULE_INDICATOR([vprintf]) + gl_STDIO_MODULE_INDICATOR([fputc]) + gl_STDIO_MODULE_INDICATOR([putc]) + gl_STDIO_MODULE_INDICATOR([putchar]) + gl_STDIO_MODULE_INDICATOR([fputs]) + gl_STDIO_MODULE_INDICATOR([puts]) + gl_STDIO_MODULE_INDICATOR([fwrite]) + gl_STDLIB_H + gl_STDLIB_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_STPCPY + gl_CONDITIONAL([GL_COND_OBJ_STPCPY], + [test $HAVE_STPCPY = 0 || test $REPLACE_STPCPY = 1]) + AM_COND_IF([GL_COND_OBJ_STPCPY], [ + gl_PREREQ_STPCPY + ]) + gl_STRING_MODULE_INDICATOR([stpcpy]) + gl_STRCASE + gl_CONDITIONAL([GL_COND_OBJ_STRCASECMP], [test $HAVE_STRCASECMP = 0]) + AM_COND_IF([GL_COND_OBJ_STRCASECMP], [ + gl_PREREQ_STRCASECMP + ]) + gl_CONDITIONAL([GL_COND_OBJ_STRNCASECMP], [test $HAVE_STRNCASECMP = 0]) + AM_COND_IF([GL_COND_OBJ_STRNCASECMP], [ + gl_PREREQ_STRNCASECMP + ]) + gl_FUNC_STRCASESTR + if test $HAVE_STRCASESTR = 0 || test $REPLACE_STRCASESTR = 1; then + AC_LIBOBJ([strcasestr]) + gl_PREREQ_STRCASESTR + fi + gl_FUNC_STRCASESTR_SIMPLE + if test $HAVE_STRCASESTR = 0 || test $REPLACE_STRCASESTR = 1; then + AC_LIBOBJ([strcasestr]) + gl_PREREQ_STRCASESTR + fi + gl_STRING_MODULE_INDICATOR([strcasestr]) + gl_FUNC_STRCHRNUL + gl_CONDITIONAL([GL_COND_OBJ_STRCHRNUL], + [test $HAVE_STRCHRNUL = 0 || test $REPLACE_STRCHRNUL = 1]) + AM_COND_IF([GL_COND_OBJ_STRCHRNUL], [ + gl_PREREQ_STRCHRNUL + ]) + gl_STRING_MODULE_INDICATOR([strchrnul]) + gl_FUNC_STRDUP_POSIX + gl_CONDITIONAL([GL_COND_OBJ_STRDUP], [test $REPLACE_STRDUP = 1]) + AM_COND_IF([GL_COND_OBJ_STRDUP], [ + gl_PREREQ_STRDUP + ]) + gl_STRING_MODULE_INDICATOR([strdup]) + gl_FUNC_STRERROR + gl_CONDITIONAL([GL_COND_OBJ_STRERROR], [test $REPLACE_STRERROR = 1]) + gl_MODULE_INDICATOR([strerror]) + gl_STRING_MODULE_INDICATOR([strerror]) + AC_REQUIRE([gl_HEADER_ERRNO_H]) + AC_REQUIRE([gl_FUNC_STRERROR_0]) + gl_CONDITIONAL([GL_COND_OBJ_STRERROR_OVERRIDE], + [test -n "$ERRNO_H" || test $REPLACE_STRERROR_0 = 1]) + AM_COND_IF([GL_COND_OBJ_STRERROR_OVERRIDE], [ + gl_PREREQ_SYS_H_WINSOCK2 + ]) + gl_STRING_H + gl_STRING_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_STRINGS_H + gl_STRINGS_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_STRNDUP + gl_CONDITIONAL([GL_COND_OBJ_STRNDUP], + [test $HAVE_STRNDUP = 0 || test $REPLACE_STRNDUP = 1]) + gl_STRING_MODULE_INDICATOR([strndup]) + gl_FUNC_STRNLEN + gl_CONDITIONAL([GL_COND_OBJ_STRNLEN], + [test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1]) + AM_COND_IF([GL_COND_OBJ_STRNLEN], [ + gl_PREREQ_STRNLEN + ]) + gl_STRING_MODULE_INDICATOR([strnlen]) + gl_FUNC_STRSEP + gl_CONDITIONAL([GL_COND_OBJ_STRSEP], [test $HAVE_STRSEP = 0]) + AM_COND_IF([GL_COND_OBJ_STRSEP], [ + gl_PREREQ_STRSEP + ]) + gl_STRING_MODULE_INDICATOR([strsep]) + gl_SYS_FILE_H + gl_SYS_FILE_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_IOCTL_H + gl_SYS_IOCTL_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_RANDOM_H + gl_SYS_RANDOM_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_SELECT_H + gl_SYS_SELECT_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_SOCKET_H + gl_SYS_SOCKET_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_STAT_H + gl_SYS_STAT_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_TIME_H + gl_SYS_TIME_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_TYPES_H + gl_SYS_TYPES_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYS_UIO_H + gl_SYS_UIO_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_SYSEXITS + gl_CONDITIONAL_HEADER([sysexits.h]) + AC_PROG_MKDIR_P + gl_FUNC_GEN_TEMPNAME + gl_MODULE_INDICATOR([tempname]) + gl_TERMIOS_H + gl_TERMIOS_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + AC_REQUIRE([gl_THREADLIB]) + gl_TIME_H + gl_TIME_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_TIMESPEC + gl_UNISTD_H + gl_UNISTD_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_UNISTD_SAFER + gl_FUNC_UNLINK + gl_CONDITIONAL([GL_COND_OBJ_UNLINK], [test $REPLACE_UNLINK = 1]) + gl_UNISTD_MODULE_INDICATOR([unlink]) + gl_FUNC_UNLINKAT + gl_CONDITIONAL([GL_COND_OBJ_UNLINKAT], + [test $HAVE_UNLINKAT = 0 || test $REPLACE_UNLINKAT = 1]) + gl_UNISTD_MODULE_INDICATOR([unlinkat]) + gl_FUNC_UTIME + gl_CONDITIONAL([GL_COND_OBJ_UTIME], + [test $HAVE_UTIME = 0 || test $REPLACE_UTIME = 1]) + AM_COND_IF([GL_COND_OBJ_UTIME], [ + gl_PREREQ_UTIME + ]) + gl_UTIME_MODULE_INDICATOR([utime]) + gl_UTIME_H + gl_UTIME_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_UTIMENS + AC_C_VARARRAYS + AC_REQUIRE([AC_C_RESTRICT]) + gl_FUNC_VASNPRINTF + gl_FUNC_VASPRINTF + gl_STDIO_MODULE_INDICATOR([vasprintf]) + m4_ifdef([AM_XGETTEXT_OPTION], + [AM_][XGETTEXT_OPTION([--flag=asprintf:2:c-format]) + AM_][XGETTEXT_OPTION([--flag=vasprintf:2:c-format])]) + m4_ifdef([AM_XGETTEXT_OPTION], + [AM_][XGETTEXT_OPTION([--flag=verror:3:c-format]) + AM_][XGETTEXT_OPTION([--flag=verror_at_line:5:c-format])]) + gl_FUNC_VSNPRINTF + gl_STDIO_MODULE_INDICATOR([vsnprintf]) + gl_WCHAR_H + gl_WCHAR_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + gl_FUNC_WCRTOMB + gl_CONDITIONAL([GL_COND_OBJ_WCRTOMB], + [test $HAVE_WCRTOMB = 0 || test $REPLACE_WCRTOMB = 1]) + AM_COND_IF([GL_COND_OBJ_WCRTOMB], [ + gl_PREREQ_WCRTOMB + ]) + gl_WCHAR_MODULE_INDICATOR([wcrtomb]) + gl_WCTYPE_H + gl_WCTYPE_H_REQUIRE_DEFAULTS + AC_PROG_MKDIR_P + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CONDITIONAL([GL_COND_OBJ_WINDOWS_MUTEX], + [case "$host_os" in mingw*) true;; *) false;; esac]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CONDITIONAL([GL_COND_OBJ_WINDOWS_ONCE], + [case "$host_os" in mingw*) true;; *) false;; esac]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CONDITIONAL([GL_COND_OBJ_WINDOWS_RECMUTEX], + [case "$host_os" in mingw*) true;; *) false;; esac]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CONDITIONAL([GL_COND_OBJ_WINDOWS_RWLOCK], + [case "$host_os" in mingw*) true;; *) false;; esac]) + gl_FUNC_WMEMCHR + gl_CONDITIONAL([GL_COND_OBJ_WMEMCHR], [test $HAVE_WMEMCHR = 0]) + gl_WCHAR_MODULE_INDICATOR([wmemchr]) + gl_FUNC_WMEMPCPY + gl_CONDITIONAL([GL_COND_OBJ_WMEMPCPY], + [test $HAVE_WMEMPCPY = 0 || test $REPLACE_WMEMPCPY = 1]) + gl_WCHAR_MODULE_INDICATOR([wmempcpy]) + gl_XALLOC + gl_MODULE_INDICATOR([xalloc]) + gl_MODULE_INDICATOR([xalloc-die]) + gl_XGETCWD + gl_XSIZE + gl_XSTRNDUP + gl_XVASPRINTF + m4_ifdef([AM_XGETTEXT_OPTION], + [AM_][XGETTEXT_OPTION([--flag=xasprintf:1:c-format])]) + # End of code from modules + m4_ifval(gl_LIBSOURCES_LIST, [ + m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ || + for gl_file in ]gl_LIBSOURCES_LIST[ ; do + if test ! -r ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file ; then + echo "missing file ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file" >&2 + exit 1 + fi + done])dnl + m4_if(m4_sysval, [0], [], + [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) + ]) + m4_popdef([GL_MODULE_INDICATOR_PREFIX]) + m4_popdef([GL_MACRO_PREFIX]) + m4_popdef([gl_LIBSOURCES_DIR]) + m4_popdef([gl_LIBSOURCES_LIST]) + m4_popdef([AC_LIBSOURCES]) + m4_popdef([AC_REPLACE_FUNCS]) + m4_popdef([AC_LIBOBJ]) + AC_CONFIG_COMMANDS_PRE([ + gl_libobjs= + gl_ltlibobjs= + gl_libobjdeps= + if test -n "$gl_LIBOBJS"; then + # Remove the extension. +changequote(,)dnl + sed_drop_objext='s/\.o$//;s/\.obj$//' + sed_dirname1='s,//*,/,g' + sed_dirname2='s,\(.\)/$,\1,' + sed_dirname3='s,^[^/]*$,.,' + sed_dirname4='s,\(.\)/[^/]*$,\1,' + sed_basename1='s,.*/,,' +changequote([, ])dnl + for i in `for i in $gl_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do + gl_libobjs="$gl_libobjs $i.$ac_objext" + gl_ltlibobjs="$gl_ltlibobjs $i.lo" + i_dir=`echo "$i" | sed -e "$sed_dirname1" -e "$sed_dirname2" -e "$sed_dirname3" -e "$sed_dirname4"` + i_base=`echo "$i" | sed -e "$sed_basename1"` + gl_libobjdeps="$gl_libobjdeps $i_dir/\$(DEPDIR)/$i_base.Plo" + done + fi + AC_SUBST([gl_LIBOBJS], [$gl_libobjs]) + AC_SUBST([gl_LTLIBOBJS], [$gl_ltlibobjs]) + AC_SUBST([gl_LIBOBJDEPS], [$gl_libobjdeps]) + ]) + gltests_libdeps= + gltests_ltlibdeps= + m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ])) + m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS])) + m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES])) + m4_pushdef([gltests_LIBSOURCES_LIST], []) + m4_pushdef([gltests_LIBSOURCES_DIR], []) + m4_pushdef([GL_MACRO_PREFIX], [gltests]) + m4_pushdef([GL_MODULE_INDICATOR_PREFIX], [GL]) + gl_COMMON + gl_source_base='tests' + gl_source_base_prefix= +changequote(,)dnl + gltests_WITNESS=IN_`echo "${PACKAGE-$PACKAGE_TARNAME}" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'`_GNULIB_TESTS +changequote([, ])dnl + AC_SUBST([gltests_WITNESS]) + gl_module_indicator_condition=$gltests_WITNESS + m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$gl_module_indicator_condition]) + m4_popdef([gl_MODULE_INDICATOR_CONDITION]) + m4_ifval(gltests_LIBSOURCES_LIST, [ + m4_syscmd([test ! -d ]m4_defn([gltests_LIBSOURCES_DIR])[ || + for gl_file in ]gltests_LIBSOURCES_LIST[ ; do + if test ! -r ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file ; then + echo "missing file ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file" >&2 + exit 1 + fi + done])dnl + m4_if(m4_sysval, [0], [], + [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) + ]) + m4_popdef([GL_MODULE_INDICATOR_PREFIX]) + m4_popdef([GL_MACRO_PREFIX]) + m4_popdef([gltests_LIBSOURCES_DIR]) + m4_popdef([gltests_LIBSOURCES_LIST]) + m4_popdef([AC_LIBSOURCES]) + m4_popdef([AC_REPLACE_FUNCS]) + m4_popdef([AC_LIBOBJ]) + AC_CONFIG_COMMANDS_PRE([ + gltests_libobjs= + gltests_ltlibobjs= + gltests_libobjdeps= + if test -n "$gltests_LIBOBJS"; then + # Remove the extension. +changequote(,)dnl + sed_drop_objext='s/\.o$//;s/\.obj$//' + sed_dirname1='s,//*,/,g' + sed_dirname2='s,\(.\)/$,\1,' + sed_dirname3='s,^[^/]*$,.,' + sed_dirname4='s,\(.\)/[^/]*$,\1,' + sed_basename1='s,.*/,,' +changequote([, ])dnl + for i in `for i in $gltests_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do + gltests_libobjs="$gltests_libobjs $i.$ac_objext" + gltests_ltlibobjs="$gltests_ltlibobjs $i.lo" + i_dir=`echo "$i" | sed -e "$sed_dirname1" -e "$sed_dirname2" -e "$sed_dirname3" -e "$sed_dirname4"` + i_base=`echo "$i" | sed -e "$sed_basename1"` + gltests_libobjdeps="$gltests_libobjdeps $i_dir/\$(DEPDIR)/$i_base.Plo" + done + fi + AC_SUBST([gltests_LIBOBJS], [$gltests_libobjs]) + AC_SUBST([gltests_LTLIBOBJS], [$gltests_ltlibobjs]) + AC_SUBST([gltests_LIBOBJDEPS], [$gltests_libobjdeps]) + ]) + AC_REQUIRE([gl_CC_GNULIB_WARNINGS]) +]) + +# Like AC_LIBOBJ, except that the module name goes +# into gl_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([gl_LIBOBJ], [ + AS_LITERAL_IF([$1], [gl_LIBSOURCES([$1.c])])dnl + gl_LIBOBJS="$gl_LIBOBJS $1.$ac_objext" +]) + +# Like AC_REPLACE_FUNCS, except that the module name goes +# into gl_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([gl_REPLACE_FUNCS], [ + m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl + AC_CHECK_FUNCS([$1], , [gl_LIBOBJ($ac_func)]) +]) + +# Like AC_LIBSOURCES, except the directory where the source file is +# expected is derived from the gnulib-tool parameterization, +# and alloca is special cased (for the alloca-opt module). +# We could also entirely rely on EXTRA_lib..._SOURCES. +AC_DEFUN([gl_LIBSOURCES], [ + m4_foreach([_gl_NAME], [$1], [ + m4_if(_gl_NAME, [alloca.c], [], [ + m4_define([gl_LIBSOURCES_DIR], [gl/lib]) + m4_append([gl_LIBSOURCES_LIST], _gl_NAME, [ ]) + ]) + ]) +]) + +# Like AC_LIBOBJ, except that the module name goes +# into gltests_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([gltests_LIBOBJ], [ + AS_LITERAL_IF([$1], [gltests_LIBSOURCES([$1.c])])dnl + gltests_LIBOBJS="$gltests_LIBOBJS $1.$ac_objext" +]) + +# Like AC_REPLACE_FUNCS, except that the module name goes +# into gltests_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([gltests_REPLACE_FUNCS], [ + m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl + AC_CHECK_FUNCS([$1], , [gltests_LIBOBJ($ac_func)]) +]) + +# Like AC_LIBSOURCES, except the directory where the source file is +# expected is derived from the gnulib-tool parameterization, +# and alloca is special cased (for the alloca-opt module). +# We could also entirely rely on EXTRA_lib..._SOURCES. +AC_DEFUN([gltests_LIBSOURCES], [ + m4_foreach([_gl_NAME], [$1], [ + m4_if(_gl_NAME, [alloca.c], [], [ + m4_define([gltests_LIBSOURCES_DIR], [tests]) + m4_append([gltests_LIBSOURCES_LIST], _gl_NAME, [ ]) + ]) + ]) +]) + +# This macro records the list of files which have been installed by +# gnulib-tool and may be removed by future gnulib-tool invocations. +AC_DEFUN([gl_FILE_LIST], [ + build-aux/config.rpath + build-aux/gitlog-to-changelog + build-aux/gnupload + lib/_Noreturn.h + lib/alloca.c + lib/alloca.in.h + lib/arg-nonnull.h + lib/argp-ba.c + lib/argp-eexst.c + lib/argp-fmtstream.c + lib/argp-fmtstream.h + lib/argp-fs-xinl.c + lib/argp-help.c + lib/argp-namefrob.h + lib/argp-parse.c + lib/argp-pin.c + lib/argp-pv.c + lib/argp-pvh.c + lib/argp-xinl.c + lib/argp.h + lib/asnprintf.c + lib/asprintf.c + lib/assert.in.h + lib/assure.h + lib/at-func.c + lib/at-func2.c + lib/attribute.h + lib/basename-lgpl.c + lib/basename-lgpl.h + lib/basename.c + lib/bitrotate.c + lib/bitrotate.h + lib/btowc.c + lib/c++defs.h + lib/calloc.c + lib/canonicalize-lgpl.c + lib/canonicalize.c + lib/canonicalize.h + lib/cdefs.h + lib/chdir-long.c + lib/chdir-long.h + lib/chown.c + lib/cloexec.c + lib/cloexec.h + lib/close.c + lib/closedir.c + lib/ctype.in.h + lib/dirent-private.h + lib/dirent.in.h + lib/dirfd.c + lib/dirname-lgpl.c + lib/dirname.c + lib/dirname.h + lib/dup-safer-flag.c + lib/dup-safer.c + lib/dup.c + lib/dup2.c + lib/dynarray.h + lib/eloop-threshold.h + lib/errno.in.h + lib/error.c + lib/error.in.h + lib/exitfail.c + lib/exitfail.h + lib/fchdir.c + lib/fchown-stub.c + lib/fcntl.c + lib/fcntl.in.h + lib/fd-hook.c + lib/fd-hook.h + lib/fd-safer-flag.c + lib/fd-safer.c + lib/fdopendir.c + lib/file-set.c + lib/file-set.h + lib/filename.h + lib/filenamecat-lgpl.c + lib/filenamecat.h + lib/flexmember.h + lib/float+.h + lib/float.c + lib/float.in.h + lib/flock.c + lib/fnmatch.c + lib/fnmatch.in.h + lib/fnmatch_loop.c + lib/free.c + lib/fstat.c + lib/fstatat.c + lib/getcwd-lgpl.c + lib/getcwd.c + lib/getdelim.c + lib/getdtablesize.c + lib/getline.c + lib/getlogin_r.c + lib/getopt-cdefs.in.h + lib/getopt-core.h + lib/getopt-ext.h + lib/getopt-pfx-core.h + lib/getopt-pfx-ext.h + lib/getopt.c + lib/getopt.in.h + lib/getopt1.c + lib/getopt_int.h + lib/getprogname.c + lib/getprogname.h + lib/getrandom.c + lib/gettext.h + lib/gettime.c + lib/gettimeofday.c + lib/gl_anyhash1.h + lib/gl_anyhash2.h + lib/gl_anyhash_primes.h + lib/gl_anylinked_list1.h + lib/gl_anylinked_list2.h + lib/gl_anyrbtree_list1.h + lib/gl_anyrbtree_list2.h + lib/gl_anytree_list1.h + lib/gl_anytree_list2.h + lib/gl_array_list.c + lib/gl_array_list.h + lib/gl_hash_map.c + lib/gl_hash_map.h + lib/gl_hash_set.c + lib/gl_hash_set.h + lib/gl_linkedhash_list.c + lib/gl_linkedhash_list.h + lib/gl_list.c + lib/gl_list.h + lib/gl_map.c + lib/gl_map.h + lib/gl_rbtree_list.c + lib/gl_rbtree_list.h + lib/gl_set.c + lib/gl_set.h + lib/gl_xlist.c + lib/gl_xlist.h + lib/gl_xmap.c + lib/gl_xmap.h + lib/gl_xset.c + lib/gl_xset.h + lib/glob-libc.h + lib/glob.c + lib/glob.in.h + lib/glob_internal.h + lib/glob_pattern_p.c + lib/globfree.c + lib/glthread/lock.c + lib/glthread/lock.h + lib/glthread/threadlib.c + lib/hard-locale.c + lib/hard-locale.h + lib/hash-pjw-bare.c + lib/hash-pjw-bare.h + lib/hash-pjw.c + lib/hash-pjw.h + lib/hash-triple-simple.c + lib/hash-triple.h + lib/hash.c + lib/hash.h + lib/ialloc.c + lib/ialloc.h + lib/idpriv-drop.c + lib/idpriv-droptemp.c + lib/idpriv.h + lib/idx.h + lib/intprops-internal.h + lib/intprops.h + lib/inttypes.in.h + lib/ioctl.c + lib/isblank.c + lib/itold.c + lib/langinfo.in.h + lib/lc-charset-dispatch.c + lib/lc-charset-dispatch.h + lib/lchown.c + lib/libc-config.h + lib/limits.in.h + lib/localcharset.c + lib/localcharset.h + lib/locale.in.h + lib/localeconv.c + lib/lstat.c + lib/malloc.c + lib/malloc/dynarray-skeleton.c + lib/malloc/dynarray.h + lib/malloc/dynarray_at_failure.c + lib/malloc/dynarray_emplace_enlarge.c + lib/malloc/dynarray_finalize.c + lib/malloc/dynarray_resize.c + lib/malloc/dynarray_resize_clear.c + lib/malloc/scratch_buffer.h + lib/malloc/scratch_buffer_grow.c + lib/malloc/scratch_buffer_grow_preserve.c + lib/malloc/scratch_buffer_set_array_size.c + lib/malloca.c + lib/malloca.h + lib/mbrtowc-impl-utf8.h + lib/mbrtowc-impl.h + lib/mbrtowc.c + lib/mbsinit.c + lib/mbsrtowcs-impl.h + lib/mbsrtowcs-state.c + lib/mbsrtowcs.c + lib/mbtowc-impl.h + lib/mbtowc-lock.c + lib/mbtowc-lock.h + lib/mbtowc.c + lib/memchr.c + lib/memchr.valgrind + lib/memmem.c + lib/mempcpy.c + lib/memrchr.c + lib/minmax.h + lib/mkdir.c + lib/mkdtemp.c + lib/mkstemp.c + lib/msvc-inval.c + lib/msvc-inval.h + lib/msvc-nothrow.c + lib/msvc-nothrow.h + lib/nanosleep.c + lib/nl_langinfo-lock.c + lib/nl_langinfo.c + lib/nonblocking.c + lib/nonblocking.h + lib/open.c + lib/openat-die.c + lib/openat-priv.h + lib/openat-proc.c + lib/openat.c + lib/openat.h + lib/opendir.c + lib/pathmax.h + lib/pipe-safer.c + lib/pipe.c + lib/printf-args.c + lib/printf-args.h + lib/printf-parse.c + lib/printf-parse.h + lib/progname.c + lib/progname.h + lib/pselect.c + lib/pthread_sigmask.c + lib/raise.c + lib/rawmemchr.c + lib/rawmemchr.valgrind + lib/readdir.c + lib/readlink.c + lib/readlinkat.c + lib/realloc.c + lib/reallocarray.c + lib/regcomp.c + lib/regex.c + lib/regex.h + lib/regex_internal.c + lib/regex_internal.h + lib/regexec.c + lib/rename.c + lib/renameat.c + lib/renameatu.c + lib/renameatu.h + lib/rewinddir.c + lib/rmdir.c + lib/same-inode.h + lib/save-cwd.c + lib/save-cwd.h + lib/scratch_buffer.h + lib/select.c + lib/setenv.c + lib/setlocale-lock.c + lib/setlocale_null.c + lib/setlocale_null.h + lib/sig-handler.c + lib/sig-handler.h + lib/sigaction.c + lib/signal.in.h + lib/sigprocmask.c + lib/size_max.h + lib/sleep.c + lib/sockets.c + lib/sockets.h + lib/stat-time.c + lib/stat-time.h + lib/stat-w32.c + lib/stat-w32.h + lib/stat.c + lib/stdarg.in.h + lib/stdckdint.in.h + lib/stddef.in.h + lib/stdint.in.h + lib/stdio-read.c + lib/stdio-write.c + lib/stdio.in.h + lib/stdlib.in.h + lib/stdopen.c + lib/stdopen.h + lib/stpcpy.c + lib/str-two-way.h + lib/strcasecmp.c + lib/strcasestr.c + lib/strchrnul.c + lib/strchrnul.valgrind + lib/strdup.c + lib/streq.h + lib/strerror-override.c + lib/strerror-override.h + lib/strerror.c + lib/string.in.h + lib/strings.in.h + lib/stripslash.c + lib/strncasecmp.c + lib/strndup.c + lib/strnlen.c + lib/strnlen1.c + lib/strnlen1.h + lib/strsep.c + lib/sys_file.in.h + lib/sys_ioctl.in.h + lib/sys_random.in.h + lib/sys_select.in.h + lib/sys_socket.c + lib/sys_socket.in.h + lib/sys_stat.in.h + lib/sys_time.in.h + lib/sys_types.in.h + lib/sys_uio.in.h + lib/sysexits.in.h + lib/tempname.c + lib/tempname.h + lib/termios.in.h + lib/time.in.h + lib/timespec.c + lib/timespec.h + lib/unistd--.h + lib/unistd-safer.h + lib/unistd.c + lib/unistd.in.h + lib/unlink.c + lib/unlinkat.c + lib/utime.c + lib/utime.in.h + lib/utimens.c + lib/utimens.h + lib/vasnprintf.c + lib/vasnprintf.h + lib/vasprintf.c + lib/verify.h + lib/verror.c + lib/verror.h + lib/vsnprintf.c + lib/w32sock.h + lib/warn-on-use.h + lib/wchar.in.h + lib/wcrtomb.c + lib/wctype-h.c + lib/wctype.in.h + lib/windows-initguard.h + lib/windows-mutex.c + lib/windows-mutex.h + lib/windows-once.c + lib/windows-once.h + lib/windows-recmutex.c + lib/windows-recmutex.h + lib/windows-rwlock.c + lib/windows-rwlock.h + lib/wmemchr-impl.h + lib/wmemchr.c + lib/wmempcpy.c + lib/xalloc-die.c + lib/xalloc-oversized.h + lib/xalloc.h + lib/xasprintf.c + lib/xgetcwd.c + lib/xgetcwd.h + lib/xmalloc.c + lib/xsize.c + lib/xsize.h + lib/xstdopen.c + lib/xstdopen.h + lib/xstrndup.c + lib/xstrndup.h + lib/xvasprintf.c + lib/xvasprintf.h + m4/00gnulib.m4 + m4/__inline.m4 + m4/absolute-header.m4 + m4/alloca.m4 + m4/argp.m4 + m4/asm-underscore.m4 + m4/assert_h.m4 + m4/btowc.m4 + m4/builtin-expect.m4 + m4/c-bool.m4 + m4/calloc.m4 + m4/canonicalize.m4 + m4/chdir-long.m4 + m4/chown.m4 + m4/clock_time.m4 + m4/close.m4 + m4/closedir.m4 + m4/codeset.m4 + m4/ctype_h.m4 + m4/d-ino.m4 + m4/d-type.m4 + m4/dirent_h.m4 + m4/dirfd.m4 + m4/double-slash-root.m4 + m4/dup.m4 + m4/dup2.m4 + m4/eealloc.m4 + m4/environ.m4 + m4/errno_h.m4 + m4/error.m4 + m4/error_h.m4 + m4/exponentd.m4 + m4/extensions.m4 + m4/extern-inline.m4 + m4/fchdir.m4 + m4/fcntl-o.m4 + m4/fcntl.m4 + m4/fcntl_h.m4 + m4/fdopendir.m4 + m4/filenamecat.m4 + m4/flexmember.m4 + m4/float_h.m4 + m4/flock.m4 + m4/fnmatch.m4 + m4/fnmatch_h.m4 + m4/free.m4 + m4/fstat.m4 + m4/fstatat.m4 + m4/getcwd-abort-bug.m4 + m4/getcwd-path-max.m4 + m4/getcwd.m4 + m4/getdelim.m4 + m4/getdtablesize.m4 + m4/getline.m4 + m4/getlogin.m4 + m4/getlogin_r.m4 + m4/getopt.m4 + m4/getpagesize.m4 + m4/getprogname.m4 + m4/getrandom.m4 + m4/gettime.m4 + m4/gettimeofday.m4 + m4/glob.m4 + m4/glob_h.m4 + m4/gnulib-common.m4 + m4/host-cpu-c-abi.m4 + m4/idpriv.m4 + m4/include_next.m4 + m4/intmax_t.m4 + m4/inttypes.m4 + m4/inttypes_h.m4 + m4/ioctl.m4 + m4/isblank.m4 + m4/langinfo_h.m4 + m4/largefile.m4 + m4/lchown.m4 + m4/lib-ignore.m4 + m4/lib-ld.m4 + m4/lib-link.m4 + m4/lib-prefix.m4 + m4/limits-h.m4 + m4/localcharset.m4 + m4/locale-fr.m4 + m4/locale-ja.m4 + m4/locale-zh.m4 + m4/locale_h.m4 + m4/localeconv.m4 + m4/lock.m4 + m4/lstat.m4 + m4/malloc.m4 + m4/malloca.m4 + m4/manywarnings-c++.m4 + m4/manywarnings.m4 + m4/math_h.m4 + m4/mbrtowc.m4 + m4/mbsinit.m4 + m4/mbsrtowcs.m4 + m4/mbstate_t.m4 + m4/mbtowc.m4 + m4/memchr.m4 + m4/memmem.m4 + m4/mempcpy.m4 + m4/memrchr.m4 + m4/minmax.m4 + m4/mkdir.m4 + m4/mkdtemp.m4 + m4/mkstemp.m4 + m4/mmap-anon.m4 + m4/mode_t.m4 + m4/msvc-inval.m4 + m4/msvc-nothrow.m4 + m4/multiarch.m4 + m4/musl.m4 + m4/nanosleep.m4 + m4/nl_langinfo.m4 + m4/nocrash.m4 + m4/nonblocking.m4 + m4/off_t.m4 + m4/open-cloexec.m4 + m4/open-slash.m4 + m4/open.m4 + m4/openat.m4 + m4/opendir.m4 + m4/pathmax.m4 + m4/pid_t.m4 + m4/pipe.m4 + m4/printf.m4 + m4/pselect.m4 + m4/pthread_rwlock_rdlock.m4 + m4/pthread_sigmask.m4 + m4/raise.m4 + m4/rawmemchr.m4 + m4/readdir.m4 + m4/readlink.m4 + m4/readlinkat.m4 + m4/realloc.m4 + m4/reallocarray.m4 + m4/regex.m4 + m4/rename.m4 + m4/renameat.m4 + m4/rewinddir.m4 + m4/rmdir.m4 + m4/save-cwd.m4 + m4/select.m4 + m4/setenv.m4 + m4/setlocale_null.m4 + m4/sigaction.m4 + m4/signal_h.m4 + m4/signalblocking.m4 + m4/sigpipe.m4 + m4/size_max.m4 + m4/sleep.m4 + m4/socketlib.m4 + m4/sockets.m4 + m4/socklen.m4 + m4/sockpfaf.m4 + m4/ssize_t.m4 + m4/stat-time.m4 + m4/stat.m4 + m4/std-gnu11.m4 + m4/stdalign.m4 + m4/stdarg.m4 + m4/stddef_h.m4 + m4/stdint.m4 + m4/stdint_h.m4 + m4/stdio_h.m4 + m4/stdlib_h.m4 + m4/stpcpy.m4 + m4/strcase.m4 + m4/strcasestr.m4 + m4/strchrnul.m4 + m4/strdup.m4 + m4/strerror.m4 + m4/string_h.m4 + m4/strings_h.m4 + m4/strndup.m4 + m4/strnlen.m4 + m4/strsep.m4 + m4/sys_file_h.m4 + m4/sys_ioctl_h.m4 + m4/sys_random_h.m4 + m4/sys_select_h.m4 + m4/sys_socket_h.m4 + m4/sys_stat_h.m4 + m4/sys_time_h.m4 + m4/sys_types_h.m4 + m4/sys_uio_h.m4 + m4/sysexits.m4 + m4/tempname.m4 + m4/termios_h.m4 + m4/threadlib.m4 + m4/time_h.m4 + m4/timespec.m4 + m4/unistd-safer.m4 + m4/unistd_h.m4 + m4/unlink.m4 + m4/unlinkat.m4 + m4/utime.m4 + m4/utime_h.m4 + m4/utimens.m4 + m4/utimes.m4 + m4/vararrays.m4 + m4/vasnprintf.m4 + m4/vasprintf.m4 + m4/visibility.m4 + m4/vsnprintf.m4 + m4/warn-on-use.m4 + m4/warnings.m4 + m4/wchar_h.m4 + m4/wchar_t.m4 + m4/wcrtomb.m4 + m4/wctype_h.m4 + m4/wint_t.m4 + m4/wmemchr.m4 + m4/wmempcpy.m4 + m4/xalloc.m4 + m4/xgetcwd.m4 + m4/xsize.m4 + m4/xstrndup.m4 + m4/xvasprintf.m4 + m4/zzgnulib.m4 +]) diff --git a/gl/m4/host-cpu-c-abi.m4 b/gl/m4/host-cpu-c-abi.m4 new file mode 100644 index 0000000..134f228 --- /dev/null +++ b/gl/m4/host-cpu-c-abi.m4 @@ -0,0 +1,678 @@ +# host-cpu-c-abi.m4 serial 15 +dnl Copyright (C) 2002-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible and Sam Steingold. + +dnl Sets the HOST_CPU variable to the canonical name of the CPU. +dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its +dnl C language ABI (application binary interface). +dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in +dnl config.h. +dnl +dnl This canonical name can be used to select a particular assembly language +dnl source file that will interoperate with C code on the given host. +dnl +dnl For example: +dnl * 'i386' and 'sparc' are different canonical names, because code for i386 +dnl will not run on SPARC CPUs and vice versa. They have different +dnl instruction sets. +dnl * 'sparc' and 'sparc64' are different canonical names, because code for +dnl 'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code +dnl contains 32-bit instructions, whereas 'sparc64' code contains 64-bit +dnl instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit +dnl mode, but not both. +dnl * 'mips' and 'mipsn32' are different canonical names, because they use +dnl different argument passing and return conventions for C functions, and +dnl although the instruction set of 'mips' is a large subset of the +dnl instruction set of 'mipsn32'. +dnl * 'mipsn32' and 'mips64' are different canonical names, because they use +dnl different sizes for the C types like 'int' and 'void *', and although +dnl the instruction sets of 'mipsn32' and 'mips64' are the same. +dnl * The same canonical name is used for different endiannesses. You can +dnl determine the endianness through preprocessor symbols: +dnl - 'arm': test __ARMEL__. +dnl - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL. +dnl - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN. +dnl * The same name 'i386' is used for CPUs of type i386, i486, i586 +dnl (Pentium), AMD K7, Pentium II, Pentium IV, etc., because +dnl - Instructions that do not exist on all of these CPUs (cmpxchg, +dnl MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your +dnl assembly language source files use such instructions, you will +dnl need to make the distinction. +dnl - Speed of execution of the common instruction set is reasonable across +dnl the entire family of CPUs. If you have assembly language source files +dnl that are optimized for particular CPU types (like GNU gmp has), you +dnl will need to make the distinction. +dnl See <https://en.wikipedia.org/wiki/X86_instruction_listings>. +AC_DEFUN([gl_HOST_CPU_C_ABI], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_C_ASM]) + AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi], + [case "$host_cpu" in + +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=i386 + ;; + + x86_64 ) + # On x86_64 systems, the C compiler may be generating code in one of + # these ABIs: + # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. + # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 + # with native Windows (mingw, MSVC). + # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (defined __x86_64__ || defined __amd64__ \ + || defined _M_X64 || defined _M_AMD64) + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=x86_64-x32], + [gl_cv_host_cpu_c_abi=x86_64])], + [gl_cv_host_cpu_c_abi=i386]) + ;; + +changequote(,)dnl + alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=alpha + ;; + + arm* | aarch64 ) + # Assume arm with EABI. + # On arm64 systems, the C compiler may be generating code in one of + # these ABIs: + # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. + # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __aarch64__ + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=arm64-ilp32], + [gl_cv_host_cpu_c_abi=arm64])], + [# Don't distinguish little-endian and big-endian arm, since they + # don't require different machine code for simple operations and + # since the user can distinguish them through the preprocessor + # defines __ARMEL__ vs. __ARMEB__. + # But distinguish arm which passes floating-point arguments and + # return values in integer registers (r0, r1, ...) - this is + # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which + # passes them in float registers (s0, s1, ...) and double registers + # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer + # sets the preprocessor defines __ARM_PCS (for the first case) and + # __ARM_PCS_VFP (for the second case), but older GCC does not. + echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c + # Look for a reference to the register d0 in the .s file. + AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1 + if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then + gl_cv_host_cpu_c_abi=armhf + else + gl_cv_host_cpu_c_abi=arm + fi + rm -f conftest* + ]) + ;; + + hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) + # On hppa, the C compiler may be generating 32-bit code or 64-bit + # code. In the latter case, it defines _LP64 and __LP64__. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=hppa64], + [gl_cv_host_cpu_c_abi=hppa]) + ;; + + ia64* ) + # On ia64 on HP-UX, the C compiler may be generating 64-bit code or + # 32-bit code. In the latter case, it defines _ILP32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=ia64-ilp32], + [gl_cv_host_cpu_c_abi=ia64]) + ;; + + mips* ) + # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this + # at 32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mips64], + [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but + # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32. + # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but + # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (_MIPS_SIM == _ABIN32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mipsn32], + [gl_cv_host_cpu_c_abi=mips])]) + ;; + + powerpc* ) + # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. + # No need to distinguish them here; the caller may distinguish + # them based on the OS. + # On powerpc64 systems, the C compiler may still be generating + # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may + # be generating 64-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [# On powerpc64, there are two ABIs on Linux: The AIX compatible + # one and the ELFv2 one. The latter defines _CALL_ELF=2. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _CALL_ELF && _CALL_ELF == 2 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=powerpc64-elfv2], + [gl_cv_host_cpu_c_abi=powerpc64]) + ], + [gl_cv_host_cpu_c_abi=powerpc]) + ;; + + rs6000 ) + gl_cv_host_cpu_c_abi=powerpc + ;; + + riscv32 | riscv64 ) + # There are 2 architectures (with variants): rv32* and rv64*. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if __riscv_xlen == 64 + int ok; + #else + error fail + #endif + ]])], + [cpu=riscv64], + [cpu=riscv32]) + # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. + # Size of 'long' and 'void *': + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [main_abi=lp64], + [main_abi=ilp32]) + # Float ABIs: + # __riscv_float_abi_double: + # 'float' and 'double' are passed in floating-point registers. + # __riscv_float_abi_single: + # 'float' are passed in floating-point registers. + # __riscv_float_abi_soft: + # No values are passed in floating-point registers. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_double + int ok; + #else + error fail + #endif + ]])], + [float_abi=d], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_single + int ok; + #else + error fail + #endif + ]])], + [float_abi=f], + [float_abi='']) + ]) + gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}" + ;; + + s390* ) + # On s390x, the C compiler may be generating 64-bit (= s390x) code + # or 31-bit (= s390) code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __s390x__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=s390x], + [gl_cv_host_cpu_c_abi=s390]) + ;; + + sparc | sparc64 ) + # UltraSPARCs running Linux have `uname -m` = "sparc64", but the + # C compiler still generates 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=sparc64], + [gl_cv_host_cpu_c_abi=sparc]) + ;; + + *) + gl_cv_host_cpu_c_abi="$host_cpu" + ;; + esac + ]) + + dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same. + HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'` + HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi" + AC_SUBST([HOST_CPU]) + AC_SUBST([HOST_CPU_C_ABI]) + + # This was + # AC_DEFINE_UNQUOTED([__${HOST_CPU}__]) + # AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__]) + # earlier, but KAI C++ 3.2d doesn't like this. + sed -e 's/-/_/g' >> confdefs.h <<EOF +#ifndef __${HOST_CPU}__ +#define __${HOST_CPU}__ 1 +#endif +#ifndef __${HOST_CPU_C_ABI}__ +#define __${HOST_CPU_C_ABI}__ 1 +#endif +EOF + AH_TOP([/* CPU and C ABI indicator */ +#ifndef __i386__ +#undef __i386__ +#endif +#ifndef __x86_64_x32__ +#undef __x86_64_x32__ +#endif +#ifndef __x86_64__ +#undef __x86_64__ +#endif +#ifndef __alpha__ +#undef __alpha__ +#endif +#ifndef __arm__ +#undef __arm__ +#endif +#ifndef __armhf__ +#undef __armhf__ +#endif +#ifndef __arm64_ilp32__ +#undef __arm64_ilp32__ +#endif +#ifndef __arm64__ +#undef __arm64__ +#endif +#ifndef __hppa__ +#undef __hppa__ +#endif +#ifndef __hppa64__ +#undef __hppa64__ +#endif +#ifndef __ia64_ilp32__ +#undef __ia64_ilp32__ +#endif +#ifndef __ia64__ +#undef __ia64__ +#endif +#ifndef __loongarch64__ +#undef __loongarch64__ +#endif +#ifndef __m68k__ +#undef __m68k__ +#endif +#ifndef __mips__ +#undef __mips__ +#endif +#ifndef __mipsn32__ +#undef __mipsn32__ +#endif +#ifndef __mips64__ +#undef __mips64__ +#endif +#ifndef __powerpc__ +#undef __powerpc__ +#endif +#ifndef __powerpc64__ +#undef __powerpc64__ +#endif +#ifndef __powerpc64_elfv2__ +#undef __powerpc64_elfv2__ +#endif +#ifndef __riscv32__ +#undef __riscv32__ +#endif +#ifndef __riscv64__ +#undef __riscv64__ +#endif +#ifndef __riscv32_ilp32__ +#undef __riscv32_ilp32__ +#endif +#ifndef __riscv32_ilp32f__ +#undef __riscv32_ilp32f__ +#endif +#ifndef __riscv32_ilp32d__ +#undef __riscv32_ilp32d__ +#endif +#ifndef __riscv64_ilp32__ +#undef __riscv64_ilp32__ +#endif +#ifndef __riscv64_ilp32f__ +#undef __riscv64_ilp32f__ +#endif +#ifndef __riscv64_ilp32d__ +#undef __riscv64_ilp32d__ +#endif +#ifndef __riscv64_lp64__ +#undef __riscv64_lp64__ +#endif +#ifndef __riscv64_lp64f__ +#undef __riscv64_lp64f__ +#endif +#ifndef __riscv64_lp64d__ +#undef __riscv64_lp64d__ +#endif +#ifndef __s390__ +#undef __s390__ +#endif +#ifndef __s390x__ +#undef __s390x__ +#endif +#ifndef __sh__ +#undef __sh__ +#endif +#ifndef __sparc__ +#undef __sparc__ +#endif +#ifndef __sparc64__ +#undef __sparc64__ +#endif +]) + +]) + + +dnl Sets the HOST_CPU_C_ABI_32BIT variable to 'yes' if the C language ABI +dnl (application binary interface) is a 32-bit one, to 'no' if it is a 64-bit +dnl one, or to 'unknown' if unknown. +dnl This is a simplified variant of gl_HOST_CPU_C_ABI. +AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([32-bit host C ABI], [gl_cv_host_cpu_c_abi_32bit], + [if test -n "$gl_cv_host_cpu_c_abi"; then + case "$gl_cv_host_cpu_c_abi" in + i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc) + gl_cv_host_cpu_c_abi_32bit=yes ;; + x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 ) + gl_cv_host_cpu_c_abi_32bit=no ;; + *) + gl_cv_host_cpu_c_abi_32bit=unknown ;; + esac + else + case "$host_cpu" in + + # CPUs that only support a 32-bit ABI. + arc \ + | bfin \ + | cris* \ + | csky \ + | epiphany \ + | ft32 \ + | h8300 \ + | m68k \ + | microblaze | microblazeel \ + | nds32 | nds32le | nds32be \ + | nios2 | nios2eb | nios2el \ + | or1k* \ + | or32 \ + | sh | sh[1234] | sh[1234]e[lb] \ + | tic6x \ + | xtensa* ) + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + # CPUs that only support a 64-bit ABI. +changequote(,)dnl + alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \ + | mmix ) +changequote([,])dnl + gl_cv_host_cpu_c_abi_32bit=no + ;; + +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + x86_64 ) + # On x86_64 systems, the C compiler may be generating code in one of + # these ABIs: + # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. + # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 + # with native Windows (mingw, MSVC). + # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (defined __x86_64__ || defined __amd64__ \ + || defined _M_X64 || defined _M_AMD64) \ + && !(defined __ILP32__ || defined _ILP32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + arm* | aarch64 ) + # Assume arm with EABI. + # On arm64 systems, the C compiler may be generating code in one of + # these ABIs: + # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. + # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __aarch64__ && !(defined __ILP32__ || defined _ILP32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) + # On hppa, the C compiler may be generating 32-bit code or 64-bit + # code. In the latter case, it defines _LP64 and __LP64__. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + ia64* ) + # On ia64 on HP-UX, the C compiler may be generating 64-bit code or + # 32-bit code. In the latter case, it defines _ILP32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=yes], + [gl_cv_host_cpu_c_abi_32bit=no]) + ;; + + mips* ) + # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this + # at 32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + powerpc* ) + # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. + # No need to distinguish them here; the caller may distinguish + # them based on the OS. + # On powerpc64 systems, the C compiler may still be generating + # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may + # be generating 64-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + rs6000 ) + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + riscv32 | riscv64 ) + # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. + # Size of 'long' and 'void *': + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + s390* ) + # On s390x, the C compiler may be generating 64-bit (= s390x) code + # or 31-bit (= s390) code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __s390x__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + sparc | sparc64 ) + # UltraSPARCs running Linux have `uname -m` = "sparc64", but the + # C compiler still generates 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + *) + gl_cv_host_cpu_c_abi_32bit=unknown + ;; + esac + fi + ]) + + HOST_CPU_C_ABI_32BIT="$gl_cv_host_cpu_c_abi_32bit" +]) diff --git a/gl/m4/iconv.m4 b/gl/m4/iconv.m4 new file mode 100644 index 0000000..a503646 --- /dev/null +++ b/gl/m4/iconv.m4 @@ -0,0 +1,268 @@ +# iconv.m4 serial 18 (gettext-0.18.2) +dnl Copyright (C) 2000-2002, 2007-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], +[ + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_LIB_LINKFLAGS_BODY([iconv]) +]) + +AC_DEFUN([AM_ICONV_LINK], +[ + dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and + dnl those with the standalone portable GNU libiconv installed). + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + + dnl Add $INCICONV to CPPFLAGS before performing the following checks, + dnl because if the user has installed libiconv and not disabled its use + dnl via --without-libiconv-prefix, he wants to use it. The first + dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed. + am_save_CPPFLAGS="$CPPFLAGS" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) + + AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [ + am_cv_func_iconv="no, consider installing GNU libiconv" + am_cv_lib_iconv=no + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <stdlib.h> +#include <iconv.h> + ]], + [[iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);]])], + [am_cv_func_iconv=yes]) + if test "$am_cv_func_iconv" != yes; then + am_save_LIBS="$LIBS" + LIBS="$LIBS $LIBICONV" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <stdlib.h> +#include <iconv.h> + ]], + [[iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);]])], + [am_cv_lib_iconv=yes] + [am_cv_func_iconv=yes]) + LIBS="$am_save_LIBS" + fi + ]) + if test "$am_cv_func_iconv" = yes; then + AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [ + dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11, + dnl Solaris 10. + am_save_LIBS="$LIBS" + if test $am_cv_lib_iconv = yes; then + LIBS="$LIBS $LIBICONV" + fi + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <iconv.h> +#include <string.h> +int main () +{ + int result = 0; + /* Test against AIX 5.1 bug: Failures are not distinguishable from successful + returns. */ + { + iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8"); + if (cd_utf8_to_88591 != (iconv_t)(-1)) + { + static const char input[] = "\342\202\254"; /* EURO SIGN */ + char buf[10]; + const char *inptr = input; + size_t inbytesleft = strlen (input); + char *outptr = buf; + size_t outbytesleft = sizeof (buf); + size_t res = iconv (cd_utf8_to_88591, + (char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + if (res == 0) + result |= 1; + iconv_close (cd_utf8_to_88591); + } + } + /* Test against Solaris 10 bug: Failures are not distinguishable from + successful returns. */ + { + iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646"); + if (cd_ascii_to_88591 != (iconv_t)(-1)) + { + static const char input[] = "\263"; + char buf[10]; + const char *inptr = input; + size_t inbytesleft = strlen (input); + char *outptr = buf; + size_t outbytesleft = sizeof (buf); + size_t res = iconv (cd_ascii_to_88591, + (char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + if (res == 0) + result |= 2; + iconv_close (cd_ascii_to_88591); + } + } + /* Test against AIX 6.1..7.1 bug: Buffer overrun. */ + { + iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1"); + if (cd_88591_to_utf8 != (iconv_t)(-1)) + { + static const char input[] = "\304"; + static char buf[2] = { (char)0xDE, (char)0xAD }; + const char *inptr = input; + size_t inbytesleft = 1; + char *outptr = buf; + size_t outbytesleft = 1; + size_t res = iconv (cd_88591_to_utf8, + (char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD) + result |= 4; + iconv_close (cd_88591_to_utf8); + } + } +#if 0 /* This bug could be worked around by the caller. */ + /* Test against HP-UX 11.11 bug: Positive return value instead of 0. */ + { + iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591"); + if (cd_88591_to_utf8 != (iconv_t)(-1)) + { + static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337"; + char buf[50]; + const char *inptr = input; + size_t inbytesleft = strlen (input); + char *outptr = buf; + size_t outbytesleft = sizeof (buf); + size_t res = iconv (cd_88591_to_utf8, + (char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + if ((int)res > 0) + result |= 8; + iconv_close (cd_88591_to_utf8); + } + } +#endif + /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is + provided. */ + if (/* Try standardized names. */ + iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1) + /* Try IRIX, OSF/1 names. */ + && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1) + /* Try AIX names. */ + && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1) + /* Try HP-UX names. */ + && iconv_open ("utf8", "eucJP") == (iconv_t)(-1)) + result |= 16; + return result; +}]])], + [am_cv_func_iconv_works=yes], + [am_cv_func_iconv_works=no], + [ +changequote(,)dnl + case "$host_os" in + aix* | hpux*) am_cv_func_iconv_works="guessing no" ;; + *) am_cv_func_iconv_works="guessing yes" ;; + esac +changequote([,])dnl + ]) + LIBS="$am_save_LIBS" + ]) + case "$am_cv_func_iconv_works" in + *no) am_func_iconv=no am_cv_lib_iconv=no ;; + *) am_func_iconv=yes ;; + esac + else + am_func_iconv=no am_cv_lib_iconv=no + fi + if test "$am_func_iconv" = yes; then + AC_DEFINE([HAVE_ICONV], [1], + [Define if you have the iconv() function and it works.]) + fi + if test "$am_cv_lib_iconv" = yes; then + AC_MSG_CHECKING([how to link with libiconv]) + AC_MSG_RESULT([$LIBICONV]) + else + dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV + dnl either. + CPPFLAGS="$am_save_CPPFLAGS" + LIBICONV= + LTLIBICONV= + fi + AC_SUBST([LIBICONV]) + AC_SUBST([LTLIBICONV]) +]) + +dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to +dnl avoid warnings like +dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required". +dnl This is tricky because of the way 'aclocal' is implemented: +dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN. +dnl Otherwise aclocal's initial scan pass would miss the macro definition. +dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions. +dnl Otherwise aclocal would emit many "Use of uninitialized value $1" +dnl warnings. +m4_define([gl_iconv_AC_DEFUN], + m4_version_prereq([2.64], + [[AC_DEFUN_ONCE( + [$1], [$2])]], + [m4_ifdef([gl_00GNULIB], + [[AC_DEFUN_ONCE( + [$1], [$2])]], + [[AC_DEFUN( + [$1], [$2])]])])) +gl_iconv_AC_DEFUN([AM_ICONV], +[ + AM_ICONV_LINK + if test "$am_cv_func_iconv" = yes; then + AC_MSG_CHECKING([for iconv declaration]) + AC_CACHE_VAL([am_cv_proto_iconv], [ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <stdlib.h> +#include <iconv.h> +extern +#ifdef __cplusplus +"C" +#endif +#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) +size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); +#else +size_t iconv(); +#endif + ]], + [[]])], + [am_cv_proto_iconv_arg1=""], + [am_cv_proto_iconv_arg1="const"]) + am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) + am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` + AC_MSG_RESULT([ + $am_cv_proto_iconv]) + AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1], + [Define as const if the declaration of iconv() needs const.]) + dnl Also substitute ICONV_CONST in the gnulib generated <iconv.h>. + m4_ifdef([gl_ICONV_H_DEFAULTS], + [AC_REQUIRE([gl_ICONV_H_DEFAULTS]) + if test -n "$am_cv_proto_iconv_arg1"; then + ICONV_CONST="const" + fi + ]) + fi +]) diff --git a/gl/m4/idpriv.m4 b/gl/m4/idpriv.m4 new file mode 100644 index 0000000..fc3dd17 --- /dev/null +++ b/gl/m4/idpriv.m4 @@ -0,0 +1,14 @@ +# idpriv.m4 serial 1 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_IDPRIV], +[ + dnl Persuade glibc <unistd.h> to declare {get,set}res{uid,gid}. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_FUNCS_ONCE([getuid geteuid getresuid getgid getegid getresgid]) + AC_CHECK_FUNCS_ONCE([setresuid setreuid seteuid setresgid setregid setegid]) +]) diff --git a/gl/m4/include_next.m4 b/gl/m4/include_next.m4 new file mode 100644 index 0000000..9f19215 --- /dev/null +++ b/gl/m4/include_next.m4 @@ -0,0 +1,224 @@ +# include_next.m4 serial 26 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert and Derek Price. + +dnl Sets INCLUDE_NEXT, INCLUDE_NEXT_AS_FIRST_DIRECTIVE, PRAGMA_SYSTEM_HEADER, +dnl and PRAGMA_COLUMNS. +dnl +dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to +dnl 'include' otherwise. +dnl +dnl INCLUDE_NEXT_AS_FIRST_DIRECTIVE expands to 'include_next' if the compiler +dnl supports it in the special case that it is the first include directive in +dnl the given file, or to 'include' otherwise. +dnl +dnl PRAGMA_SYSTEM_HEADER can be used in files that contain #include_next, +dnl so as to avoid GCC warnings when the gcc option -pedantic is used. +dnl '#pragma GCC system_header' has the same effect as if the file was found +dnl through the include search path specified with '-isystem' options (as +dnl opposed to the search path specified with '-I' options). Namely, gcc +dnl does not warn about some things, and on some systems (Solaris and Interix) +dnl __STDC__ evaluates to 0 instead of to 1. The latter is an undesired side +dnl effect; we are therefore careful to use 'defined __STDC__' or '1' instead +dnl of plain '__STDC__'. +dnl +dnl PRAGMA_COLUMNS can be used in files that override system header files, so +dnl as to avoid compilation errors on HP NonStop systems when the gnulib file +dnl is included by a system header file that does a "#pragma COLUMNS 80" (which +dnl has the effect of truncating the lines of that file and all files that it +dnl includes to 80 columns) and the gnulib file has lines longer than 80 +dnl columns. + +AC_DEFUN([gl_INCLUDE_NEXT], +[ + AC_LANG_PREPROC_REQUIRE() + AC_CACHE_CHECK([whether the preprocessor supports include_next], + [gl_cv_have_include_next], + [rm -rf conftestd1a conftestd1b conftestd2 + mkdir conftestd1a conftestd1b conftestd2 + dnl IBM C 9.0, 10.1 (original versions, prior to the 2009-01 updates) on + dnl AIX 6.1 support include_next when used as first preprocessor directive + dnl in a file, but not when preceded by another include directive. Check + dnl for this bug by including <stdio.h>. + dnl Additionally, with this same compiler, include_next is a no-op when + dnl used in a header file that was included by specifying its absolute + dnl file name. Despite these two bugs, include_next is used in the + dnl compiler's <math.h>. By virtue of the second bug, we need to use + dnl include_next as well in this case. + cat <<EOF > conftestd1a/conftest.h +#define DEFINED_IN_CONFTESTD1 +#include_next <conftest.h> +#ifdef DEFINED_IN_CONFTESTD2 +int foo; +#else +#error "include_next doesn't work" +#endif +EOF + cat <<EOF > conftestd1b/conftest.h +#define DEFINED_IN_CONFTESTD1 +#include <stdio.h> +#include_next <conftest.h> +#ifdef DEFINED_IN_CONFTESTD2 +int foo; +#else +#error "include_next doesn't work" +#endif +EOF + cat <<EOF > conftestd2/conftest.h +#ifndef DEFINED_IN_CONFTESTD1 +#error "include_next test doesn't work" +#endif +#define DEFINED_IN_CONFTESTD2 +EOF + gl_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1b -Iconftestd2" +dnl We intentionally avoid using AC_LANG_SOURCE here. + AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include <conftest.h>]], + [gl_cv_have_include_next=yes], + [CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1a -Iconftestd2" + AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include <conftest.h>]], + [gl_cv_have_include_next=buggy], + [gl_cv_have_include_next=no]) + ]) + CPPFLAGS="$gl_save_CPPFLAGS" + rm -rf conftestd1a conftestd1b conftestd2 + ]) + PRAGMA_SYSTEM_HEADER= + if test $gl_cv_have_include_next = yes; then + INCLUDE_NEXT=include_next + INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next + if test -n "$GCC"; then + PRAGMA_SYSTEM_HEADER='#pragma GCC system_header' + fi + else + if test $gl_cv_have_include_next = buggy; then + INCLUDE_NEXT=include + INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next + else + INCLUDE_NEXT=include + INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include + fi + fi + AC_SUBST([INCLUDE_NEXT]) + AC_SUBST([INCLUDE_NEXT_AS_FIRST_DIRECTIVE]) + AC_SUBST([PRAGMA_SYSTEM_HEADER]) + + dnl HP NonStop systems, which define __TANDEM, limit the line length + dnl after including some system header files. + AC_CACHE_CHECK([whether source code line length is unlimited], + [gl_cv_source_line_length_unlimited], + [AC_EGREP_CPP([choke me], + [ +#ifdef __TANDEM +choke me +#endif + ], + [gl_cv_source_line_length_unlimited=no], + [gl_cv_source_line_length_unlimited=yes]) + ]) + if test $gl_cv_source_line_length_unlimited = no; then + PRAGMA_COLUMNS="#pragma COLUMNS 10000" + else + PRAGMA_COLUMNS= + fi + AC_SUBST([PRAGMA_COLUMNS]) +]) + +# gl_CHECK_NEXT_HEADERS(HEADER1 HEADER2 ...) +# ------------------------------------------ +# For each arg foo.h, if #include_next works, define NEXT_FOO_H to be +# '<foo.h>'; otherwise define it to be +# '"///usr/include/foo.h"', or whatever other absolute file name is suitable. +# Also, if #include_next works as first preprocessing directive in a file, +# define NEXT_AS_FIRST_DIRECTIVE_FOO_H to be '<foo.h>'; otherwise define it to +# be +# '"///usr/include/foo.h"', or whatever other absolute file name is suitable. +# That way, a header file with the following line: +# #@INCLUDE_NEXT@ @NEXT_FOO_H@ +# or +# #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_FOO_H@ +# behaves (after sed substitution) as if it contained +# #include_next <foo.h> +# even if the compiler does not support include_next. +# The three "///" are to pacify Sun C 5.8, which otherwise would say +# "warning: #include of /usr/include/... may be non-portable". +# Use '""', not '<>', so that the /// cannot be confused with a C99 comment. +# Note: This macro assumes that the header file is not empty after +# preprocessing, i.e. it does not only define preprocessor macros but also +# provides some type/enum definitions or function/variable declarations. +# +# This macro also checks whether each header exists, by invoking +# AC_CHECK_HEADERS_ONCE or AC_CHECK_HEADERS on each argument. +AC_DEFUN([gl_CHECK_NEXT_HEADERS], +[ + gl_NEXT_HEADERS_INTERNAL([$1], [check]) +]) + +# gl_NEXT_HEADERS(HEADER1 HEADER2 ...) +# ------------------------------------ +# Like gl_CHECK_NEXT_HEADERS, except do not check whether the headers exist. +# This is suitable for headers like <stddef.h> that are standardized by C89 +# and therefore can be assumed to exist. +AC_DEFUN([gl_NEXT_HEADERS], +[ + gl_NEXT_HEADERS_INTERNAL([$1], [assume]) +]) + +# The guts of gl_CHECK_NEXT_HEADERS and gl_NEXT_HEADERS. +AC_DEFUN([gl_NEXT_HEADERS_INTERNAL], +[ + AC_REQUIRE([gl_INCLUDE_NEXT]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + m4_if([$2], [check], + [AC_CHECK_HEADERS_ONCE([$1]) + ]) + + m4_foreach_w([gl_HEADER_NAME], [$1], + [AS_VAR_PUSHDEF([gl_next_header], + [gl_cv_next_]m4_defn([gl_HEADER_NAME])) + if test $gl_cv_have_include_next = yes; then + AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>']) + else + AC_CACHE_CHECK( + [absolute name of <]m4_defn([gl_HEADER_NAME])[>], + [gl_next_header], + [m4_if([$2], [check], + [AS_VAR_PUSHDEF([gl_header_exists], + [ac_cv_header_]m4_defn([gl_HEADER_NAME])) + if test AS_VAR_GET([gl_header_exists]) = yes; then + AS_VAR_POPDEF([gl_header_exists]) + ]) + gl_ABSOLUTE_HEADER_ONE(gl_HEADER_NAME) + AS_VAR_COPY([gl_header], [gl_cv_absolute_]AS_TR_SH(gl_HEADER_NAME)) + AS_VAR_SET([gl_next_header], ['"'$gl_header'"']) + m4_if([$2], [check], + [else + AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>']) + fi + ]) + ]) + fi + AC_SUBST( + AS_TR_CPP([NEXT_]m4_defn([gl_HEADER_NAME])), + [AS_VAR_GET([gl_next_header])]) + if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then + # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next' + gl_next_as_first_directive='<'gl_HEADER_NAME'>' + else + # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include' + gl_next_as_first_directive=AS_VAR_GET([gl_next_header]) + fi + AC_SUBST( + AS_TR_CPP([NEXT_AS_FIRST_DIRECTIVE_]m4_defn([gl_HEADER_NAME])), + [$gl_next_as_first_directive]) + AS_VAR_POPDEF([gl_next_header])]) +]) + +# Autoconf 2.68 added warnings for our use of AC_COMPILE_IFELSE; +# this fallback is safe for all earlier autoconf versions. +m4_define_default([AC_LANG_DEFINES_PROVIDED]) diff --git a/gl/m4/intdiv0.m4 b/gl/m4/intdiv0.m4 new file mode 100644 index 0000000..74d0e80 --- /dev/null +++ b/gl/m4/intdiv0.m4 @@ -0,0 +1,87 @@ +# intdiv0.m4 serial 6 (gettext-0.18.2) +dnl Copyright (C) 2002, 2007-2008, 2010-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gt_INTDIV0], +[ + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl + + AC_CACHE_CHECK([whether integer division by zero raises SIGFPE], + gt_cv_int_divbyzero_sigfpe, + [ + gt_cv_int_divbyzero_sigfpe= +changequote(,)dnl + case "$host_os" in + macos* | darwin[6-9]* | darwin[1-9][0-9]*) + # On Mac OS X 10.2 or newer, just assume the same as when cross- + # compiling. If we were to perform the real test, 1 Crash Report + # dialog window would pop up. + case "$host_cpu" in + i[34567]86 | x86_64) + gt_cv_int_divbyzero_sigfpe="guessing yes" ;; + esac + ;; + esac +changequote([,])dnl + if test -z "$gt_cv_int_divbyzero_sigfpe"; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdlib.h> +#include <signal.h> + +static void +sigfpe_handler (int sig) +{ + /* Exit with code 0 if SIGFPE, with code 1 if any other signal. */ + exit (sig != SIGFPE); +} + +int x = 1; +int y = 0; +int z; +int nan; + +int main () +{ + signal (SIGFPE, sigfpe_handler); +/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP. */ +#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP) + signal (SIGTRAP, sigfpe_handler); +#endif +/* Linux/SPARC yields signal SIGILL. */ +#if defined (__sparc__) && defined (__linux__) + signal (SIGILL, sigfpe_handler); +#endif + + z = x / y; + nan = y / y; + exit (2); +} +]])], + [gt_cv_int_divbyzero_sigfpe=yes], + [gt_cv_int_divbyzero_sigfpe=no], + [ + # Guess based on the CPU. +changequote(,)dnl + case "$host_cpu" in + alpha* | i[34567]86 | x86_64 | m68k | s390*) + gt_cv_int_divbyzero_sigfpe="guessing yes";; + *) + gt_cv_int_divbyzero_sigfpe="guessing no";; + esac +changequote([,])dnl + ]) + fi + ]) + case "$gt_cv_int_divbyzero_sigfpe" in + *yes) value=1;; + *) value=0;; + esac + AC_DEFINE_UNQUOTED([INTDIV0_RAISES_SIGFPE], [$value], + [Define if integer division by zero raises signal SIGFPE.]) +]) diff --git a/gl/m4/intl.m4 b/gl/m4/intl.m4 new file mode 100644 index 0000000..67feb58 --- /dev/null +++ b/gl/m4/intl.m4 @@ -0,0 +1,272 @@ +# intl.m4 serial 25 (gettext-0.18.3) +dnl Copyright (C) 1995-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. +dnl Bruno Haible <haible@clisp.cons.org>, 2000-2009. + +AC_PREREQ([2.60]) + +dnl Checks for all prerequisites of the intl subdirectory, +dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS, +dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL. +AC_DEFUN([AM_INTL_SUBDIR], +[ + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AC_PROG_MKDIR_P])dnl + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl + AC_REQUIRE([gt_GLIBC2])dnl + AC_REQUIRE([AC_PROG_RANLIB])dnl + AC_REQUIRE([gl_VISIBILITY])dnl + AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl + AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl + AC_REQUIRE([gt_TYPE_WCHAR_T])dnl + AC_REQUIRE([gt_TYPE_WINT_T])dnl + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gt_TYPE_INTMAX_T]) + AC_REQUIRE([gt_PRINTF_POSIX]) + AC_REQUIRE([gl_GLIBC21])dnl + AC_REQUIRE([gl_XSIZE])dnl + AC_REQUIRE([gl_FCNTL_O_FLAGS])dnl + AC_REQUIRE([gt_INTL_MACOSX])dnl + AC_REQUIRE([gl_EXTERN_INLINE])dnl + + dnl Support for automake's --enable-silent-rules. + case "$enable_silent_rules" in + yes) INTL_DEFAULT_VERBOSITY=0;; + no) INTL_DEFAULT_VERBOSITY=1;; + *) INTL_DEFAULT_VERBOSITY=1;; + esac + AC_SUBST([INTL_DEFAULT_VERBOSITY]) + + AC_CHECK_TYPE([ptrdiff_t], , + [AC_DEFINE([ptrdiff_t], [long], + [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) + ]) + AC_CHECK_HEADERS([features.h stddef.h stdlib.h string.h]) + AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \ + snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) + + dnl Use the _snprintf function only if it is declared (because on NetBSD it + dnl is defined as a weak alias of snprintf; we prefer to use the latter). + AC_CHECK_DECLS([_snprintf, _snwprintf], , , [#include <stdio.h>]) + + dnl Use the *_unlocked functions only if they are declared. + dnl (because some of them were defined without being declared in Solaris + dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built + dnl on Solaris 2.5.1 to run on Solaris 2.6). + AC_CHECK_DECLS([getc_unlocked], , , [#include <stdio.h>]) + + case $gt_cv_func_printf_posix in + *yes) HAVE_POSIX_PRINTF=1 ;; + *) HAVE_POSIX_PRINTF=0 ;; + esac + AC_SUBST([HAVE_POSIX_PRINTF]) + if test "$ac_cv_func_asprintf" = yes; then + HAVE_ASPRINTF=1 + else + HAVE_ASPRINTF=0 + fi + AC_SUBST([HAVE_ASPRINTF]) + if test "$ac_cv_func_snprintf" = yes; then + HAVE_SNPRINTF=1 + else + HAVE_SNPRINTF=0 + fi + AC_SUBST([HAVE_SNPRINTF]) + if test "$ac_cv_func_newlocale" = yes; then + HAVE_NEWLOCALE=1 + else + HAVE_NEWLOCALE=0 + fi + AC_SUBST([HAVE_NEWLOCALE]) + if test "$ac_cv_func_wprintf" = yes; then + HAVE_WPRINTF=1 + else + HAVE_WPRINTF=0 + fi + AC_SUBST([HAVE_WPRINTF]) + + AM_LANGINFO_CODESET + gt_LC_MESSAGES + + dnl Compilation on mingw and Cygwin needs special Makefile rules, because + dnl 1. when we install a shared library, we must arrange to export + dnl auxiliary pointer variables for every exported variable, + dnl 2. when we install a shared library and a static library simultaneously, + dnl the include file specifies __declspec(dllimport) and therefore we + dnl must arrange to define the auxiliary pointer variables for the + dnl exported variables _also_ in the static library. + if test "$enable_shared" = yes; then + case "$host_os" in + mingw* | cygwin*) is_woe32dll=yes ;; + *) is_woe32dll=no ;; + esac + else + is_woe32dll=no + fi + WOE32DLL=$is_woe32dll + AC_SUBST([WOE32DLL]) + + dnl On mingw and Cygwin, we can activate special Makefile rules which add + dnl version information to the shared libraries and executables. + case "$host_os" in + mingw* | cygwin*) is_woe32=yes ;; + *) is_woe32=no ;; + esac + WOE32=$is_woe32 + AC_SUBST([WOE32]) + if test $WOE32 = yes; then + dnl Check for a program that compiles Windows resource files. + AC_CHECK_TOOL([WINDRES], [windres]) + fi + + dnl Determine whether when creating a library, "-lc" should be passed to + dnl libtool or not. On many platforms, it is required for the libtool option + dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool + dnl in the *.la files - makes it impossible to create multithreaded programs, + dnl because libtool also reorders the -lc to come before the -pthread, and + dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>. + case "$host_os" in + hpux*) LTLIBC="" ;; + *) LTLIBC="-lc" ;; + esac + AC_SUBST([LTLIBC]) + + dnl Rename some macros and functions used for locking. + AH_BOTTOM([ +#define __libc_lock_t gl_lock_t +#define __libc_lock_define gl_lock_define +#define __libc_lock_define_initialized gl_lock_define_initialized +#define __libc_lock_init gl_lock_init +#define __libc_lock_lock gl_lock_lock +#define __libc_lock_unlock gl_lock_unlock +#define __libc_lock_recursive_t gl_recursive_lock_t +#define __libc_lock_define_recursive gl_recursive_lock_define +#define __libc_lock_define_initialized_recursive gl_recursive_lock_define_initialized +#define __libc_lock_init_recursive gl_recursive_lock_init +#define __libc_lock_lock_recursive gl_recursive_lock_lock +#define __libc_lock_unlock_recursive gl_recursive_lock_unlock +#define glthread_in_use libintl_thread_in_use +#define glthread_lock_init_func libintl_lock_init_func +#define glthread_lock_lock_func libintl_lock_lock_func +#define glthread_lock_unlock_func libintl_lock_unlock_func +#define glthread_lock_destroy_func libintl_lock_destroy_func +#define glthread_rwlock_init_multithreaded libintl_rwlock_init_multithreaded +#define glthread_rwlock_init_func libintl_rwlock_init_func +#define glthread_rwlock_rdlock_multithreaded libintl_rwlock_rdlock_multithreaded +#define glthread_rwlock_rdlock_func libintl_rwlock_rdlock_func +#define glthread_rwlock_wrlock_multithreaded libintl_rwlock_wrlock_multithreaded +#define glthread_rwlock_wrlock_func libintl_rwlock_wrlock_func +#define glthread_rwlock_unlock_multithreaded libintl_rwlock_unlock_multithreaded +#define glthread_rwlock_unlock_func libintl_rwlock_unlock_func +#define glthread_rwlock_destroy_multithreaded libintl_rwlock_destroy_multithreaded +#define glthread_rwlock_destroy_func libintl_rwlock_destroy_func +#define glthread_recursive_lock_init_multithreaded libintl_recursive_lock_init_multithreaded +#define glthread_recursive_lock_init_func libintl_recursive_lock_init_func +#define glthread_recursive_lock_lock_multithreaded libintl_recursive_lock_lock_multithreaded +#define glthread_recursive_lock_lock_func libintl_recursive_lock_lock_func +#define glthread_recursive_lock_unlock_multithreaded libintl_recursive_lock_unlock_multithreaded +#define glthread_recursive_lock_unlock_func libintl_recursive_lock_unlock_func +#define glthread_recursive_lock_destroy_multithreaded libintl_recursive_lock_destroy_multithreaded +#define glthread_recursive_lock_destroy_func libintl_recursive_lock_destroy_func +#define glthread_once_func libintl_once_func +#define glthread_once_singlethreaded libintl_once_singlethreaded +#define glthread_once_multithreaded libintl_once_multithreaded +]) +]) + + +dnl Checks for the core files of the intl subdirectory: +dnl dcigettext.c +dnl eval-plural.h +dnl explodename.c +dnl finddomain.c +dnl gettextP.h +dnl gmo.h +dnl hash-string.h hash-string.c +dnl l10nflist.c +dnl libgnuintl.h.in (except the *printf stuff) +dnl loadinfo.h +dnl loadmsgcat.c +dnl localealias.c +dnl log.c +dnl plural-exp.h plural-exp.c +dnl plural.y +dnl Used by libglocale. +AC_DEFUN([gt_INTL_SUBDIR_CORE], +[ + AC_REQUIRE([AC_C_INLINE])dnl + AC_REQUIRE([AC_TYPE_SIZE_T])dnl + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_REQUIRE([AC_FUNC_ALLOCA])dnl + AC_REQUIRE([AC_FUNC_MMAP])dnl + AC_REQUIRE([gt_INTDIV0])dnl + AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])dnl + AC_REQUIRE([gt_INTTYPES_PRI])dnl + AC_REQUIRE([gl_LOCK])dnl + + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[int foo (int a) { a = __builtin_expect (a, 10); return a == 10 ? 0 : 1; }]], + [[]])], + [AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], + [Define to 1 if the compiler understands __builtin_expect.])]) + + AC_CHECK_HEADERS([argz.h inttypes.h limits.h unistd.h sys/param.h]) + AC_CHECK_FUNCS([getcwd getegid geteuid getgid getuid mempcpy munmap \ + stpcpy strcasecmp strdup strtoul tsearch uselocale argz_count \ + argz_stringify argz_next __fsetlocking]) + + dnl Use the *_unlocked functions only if they are declared. + dnl (because some of them were defined without being declared in Solaris + dnl 2.5.1 but were removed in Solaris 2.6, whereas we want binaries built + dnl on Solaris 2.5.1 to run on Solaris 2.6). + AC_CHECK_DECLS([feof_unlocked, fgets_unlocked], , , [#include <stdio.h>]) + + AM_ICONV + + dnl intl/plural.c is generated from intl/plural.y. It requires bison, + dnl because plural.y uses bison specific features. It requires at least + dnl bison-1.26 because earlier versions generate a plural.c that doesn't + dnl compile. + dnl bison is only needed for the maintainer (who touches plural.y). But in + dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put + dnl the rule in general Makefile. Now, some people carelessly touch the + dnl files or have a broken "make" program, hence the plural.c rule will + dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not + dnl present or too old. + AC_CHECK_PROGS([INTLBISON], [bison]) + if test -z "$INTLBISON"; then + ac_verc_fail=yes + else + dnl Found it, now check the version. + AC_MSG_CHECKING([version of bison]) +changequote(<<,>>)dnl + ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` + case $ac_prog_version in + '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; + 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*) +changequote([,])dnl + ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; + *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; + esac + AC_MSG_RESULT([$ac_prog_version]) + fi + if test $ac_verc_fail = yes; then + INTLBISON=: + fi +]) diff --git a/gl/m4/intldir.m4 b/gl/m4/intldir.m4 new file mode 100644 index 0000000..388ecd6 --- /dev/null +++ b/gl/m4/intldir.m4 @@ -0,0 +1,19 @@ +# intldir.m4 serial 2 (gettext-0.18) +dnl Copyright (C) 2006, 2009-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +AC_PREREQ([2.52]) + +dnl Tells the AM_GNU_GETTEXT macro to consider an intl/ directory. +AC_DEFUN([AM_GNU_GETTEXT_INTL_SUBDIR], []) diff --git a/gl/m4/intlmacosx.m4 b/gl/m4/intlmacosx.m4 new file mode 100644 index 0000000..ab97d39 --- /dev/null +++ b/gl/m4/intlmacosx.m4 @@ -0,0 +1,56 @@ +# intlmacosx.m4 serial 5 (gettext-0.18.2) +dnl Copyright (C) 2004-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Checks for special options needed on Mac OS X. +dnl Defines INTL_MACOSX_LIBS. +AC_DEFUN([gt_INTL_MACOSX], +[ + dnl Check for API introduced in Mac OS X 10.2. + AC_CACHE_CHECK([for CFPreferencesCopyAppValue], + [gt_cv_func_CFPreferencesCopyAppValue], + [gt_save_LIBS="$LIBS" + LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <CoreFoundation/CFPreferences.h>]], + [[CFPreferencesCopyAppValue(NULL, NULL)]])], + [gt_cv_func_CFPreferencesCopyAppValue=yes], + [gt_cv_func_CFPreferencesCopyAppValue=no]) + LIBS="$gt_save_LIBS"]) + if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then + AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], [1], + [Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in the CoreFoundation framework.]) + fi + dnl Check for API introduced in Mac OS X 10.3. + AC_CACHE_CHECK([for CFLocaleCopyCurrent], [gt_cv_func_CFLocaleCopyCurrent], + [gt_save_LIBS="$LIBS" + LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <CoreFoundation/CFLocale.h>]], + [[CFLocaleCopyCurrent();]])], + [gt_cv_func_CFLocaleCopyCurrent=yes], + [gt_cv_func_CFLocaleCopyCurrent=no]) + LIBS="$gt_save_LIBS"]) + if test $gt_cv_func_CFLocaleCopyCurrent = yes; then + AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], [1], + [Define to 1 if you have the Mac OS X function CFLocaleCopyCurrent in the CoreFoundation framework.]) + fi + INTL_MACOSX_LIBS= + if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then + INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation" + fi + AC_SUBST([INTL_MACOSX_LIBS]) +]) diff --git a/gl/m4/intmax.m4 b/gl/m4/intmax.m4 new file mode 100644 index 0000000..18733a5 --- /dev/null +++ b/gl/m4/intmax.m4 @@ -0,0 +1,36 @@ +# intmax.m4 serial 6 (gettext-0.18.2) +dnl Copyright (C) 2002-2005, 2008-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether the system has the 'intmax_t' type, but don't attempt to +dnl find a replacement if it is lacking. + +AC_DEFUN([gt_TYPE_INTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <stddef.h> +#include <stdlib.h> +#if HAVE_STDINT_H_WITH_UINTMAX +#include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +#include <inttypes.h> +#endif + ]], + [[intmax_t x = -1; + return !x;]])], + [gt_cv_c_intmax_t=yes], + [gt_cv_c_intmax_t=no])]) + if test $gt_cv_c_intmax_t = yes; then + AC_DEFINE([HAVE_INTMAX_T], [1], + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) diff --git a/gl/m4/intmax_t.m4 b/gl/m4/intmax_t.m4 new file mode 100644 index 0000000..ef32e1b --- /dev/null +++ b/gl/m4/intmax_t.m4 @@ -0,0 +1,59 @@ +# intmax_t.m4 serial 9 +dnl Copyright (C) 1997-2004, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_PREREQ([2.53]) + +# Define intmax_t to 'long' or 'long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_INTMAX_T], +[ + dnl For simplicity, we assume that a header file defines 'intmax_t' if and + dnl only if it defines 'uintmax_t'. + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_DEFINE_UNQUOTED([intmax_t], [long long], + [Define to long or long long if <inttypes.h> and <stdint.h> don't define.]) + else + AC_DEFINE([HAVE_INTMAX_T], [1], + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) + +dnl An alternative would be to explicitly test for 'intmax_t'. + +AC_DEFUN([gt_AC_TYPE_INTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <stddef.h> +#include <stdlib.h> +#if HAVE_STDINT_H_WITH_UINTMAX +#include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +#include <inttypes.h> +#endif + ]], + [[intmax_t x = -1; return !x;]])], + [gt_cv_c_intmax_t=yes], + [gt_cv_c_intmax_t=no])]) + if test $gt_cv_c_intmax_t = yes; then + AC_DEFINE([HAVE_INTMAX_T], [1], + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + else + AC_DEFINE_UNQUOTED([intmax_t], [long long], + [Define to long or long long if <stdint.h> and <inttypes.h> don't define.]) + fi +]) diff --git a/gl/m4/inttypes-pri.m4 b/gl/m4/inttypes-pri.m4 new file mode 100644 index 0000000..e5a1e05 --- /dev/null +++ b/gl/m4/inttypes-pri.m4 @@ -0,0 +1,42 @@ +# inttypes-pri.m4 serial 7 (gettext-0.18.2) +dnl Copyright (C) 1997-2002, 2006, 2008-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_PREREQ([2.53]) + +# Define PRI_MACROS_BROKEN if <inttypes.h> exists and defines the PRI* +# macros to non-string values. This is the case on AIX 4.3.3. + +AC_DEFUN([gt_INTTYPES_PRI], +[ + AC_CHECK_HEADERS([inttypes.h]) + if test $ac_cv_header_inttypes_h = yes; then + AC_CACHE_CHECK([whether the inttypes.h PRIxNN macros are broken], + [gt_cv_inttypes_pri_broken], + [ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <inttypes.h> +#ifdef PRId32 +char *p = PRId32; +#endif + ]], + [[]])], + [gt_cv_inttypes_pri_broken=no], + [gt_cv_inttypes_pri_broken=yes]) + ]) + fi + if test "$gt_cv_inttypes_pri_broken" = yes; then + AC_DEFINE_UNQUOTED([PRI_MACROS_BROKEN], [1], + [Define if <inttypes.h> exists and defines unusable PRI* macros.]) + PRI_MACROS_BROKEN=1 + else + PRI_MACROS_BROKEN=0 + fi + AC_SUBST([PRI_MACROS_BROKEN]) +]) diff --git a/gl/m4/inttypes.m4 b/gl/m4/inttypes.m4 new file mode 100644 index 0000000..e7efbe9 --- /dev/null +++ b/gl/m4/inttypes.m4 @@ -0,0 +1,184 @@ +# inttypes.m4 serial 37 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Derek Price, Bruno Haible. +dnl Test whether <inttypes.h> is supported or must be substituted. + +AC_DEFUN_ONCE([gl_INTTYPES_H], +[ + AC_REQUIRE([gl_INTTYPES_INCOMPLETE]) + gl_INTTYPES_PRI_SCN +]) + +AC_DEFUN_ONCE([gl_INTTYPES_INCOMPLETE], +[ + AC_REQUIRE([gl_STDINT_H]) + AC_CHECK_HEADERS_ONCE([inttypes.h]) + + dnl Override <inttypes.h> always, so that the portability warnings work. + AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) + gl_CHECK_NEXT_HEADERS([inttypes.h]) + + AC_REQUIRE([gl_MULTIARCH]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <inttypes.h> + ]], [imaxabs imaxdiv strtoimax strtoumax]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +# Ensure that the PRI* and SCN* macros are defined appropriately. +AC_DEFUN([gl_INTTYPES_PRI_SCN], +[ + PRIPTR_PREFIX= + if $GL_GENERATE_STDINT_H; then + dnl Using the gnulib <stdint.h>. It defines intptr_t to 'long' or + dnl 'long long', depending on _WIN64. + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #ifdef _WIN64 + LLP64 + #endif + ]]) + ], + [PRIPTR_PREFIX='"l"'], + [PRIPTR_PREFIX='"ll"']) + else + dnl Using the system's <stdint.h>. + for glpfx in '' l ll I64; do + case $glpfx in + '') gltype1='int';; + l) gltype1='long int';; + ll) gltype1='long long int';; + I64) gltype1='__int64';; + esac + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <stdint.h> + extern intptr_t foo; + extern $gltype1 foo;]])], + [PRIPTR_PREFIX='"'$glpfx'"']) + test -n "$PRIPTR_PREFIX" && break + done + fi + AC_SUBST([PRIPTR_PREFIX]) + + gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( + [INT32_MAX_LT_INTMAX_MAX], + [defined INT32_MAX && defined INTMAX_MAX], + [INT32_MAX < INTMAX_MAX], + [sizeof (int) < sizeof (long long int)]) + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( + [INT64_MAX_EQ_LONG_MAX], + [defined INT64_MAX], + [INT64_MAX == LONG_MAX], + [sizeof (long long int) == sizeof (long int)]) + else + INT64_MAX_EQ_LONG_MAX=-1 + fi + gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( + [UINT32_MAX_LT_UINTMAX_MAX], + [defined UINT32_MAX && defined UINTMAX_MAX], + [UINT32_MAX < UINTMAX_MAX], + [sizeof (unsigned int) < sizeof (unsigned long long int)]) + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( + [UINT64_MAX_EQ_ULONG_MAX], + [defined UINT64_MAX], + [UINT64_MAX == ULONG_MAX], + [sizeof (unsigned long long int) == sizeof (unsigned long int)]) + else + UINT64_MAX_EQ_ULONG_MAX=-1 + fi +]) + +# Define the symbol $1 to be 1 if the condition is true, 0 otherwise. +# If $2 is true, the condition is $3; otherwise if long long int is supported +# approximate the condition with $4; otherwise, assume the condition is false. +# The condition should work on all C99 platforms; the approximations should be +# good enough to work on all practical pre-C99 platforms. +# $2 is evaluated by the C preprocessor, $3 and $4 as compile-time constants. +AC_DEFUN([gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION], +[ + AC_CACHE_CHECK([whether $3], + [gl_cv_test_$1], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[/* Work also in C++ mode. */ + #define __STDC_LIMIT_MACROS 1 + + /* Work if build is not clean. */ + #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H + + #include <limits.h> + #if HAVE_STDINT_H + #include <stdint.h> + #endif + + #if $2 + #define CONDITION ($3) + #else + #define CONDITION ($4) + #endif + int test[CONDITION ? 1 : -1];]])], + [gl_cv_test_$1=yes], + [gl_cv_test_$1=no])]) + if test $gl_cv_test_$1 = yes; then + $1=1; + else + $1=0; + fi + AC_SUBST([$1]) +]) + +# gl_INTTYPES_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_INTTYPES_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_INTTYPES_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_INTTYPES_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_INTTYPES_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_IMAXABS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_IMAXDIV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOIMAX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOUMAX]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_INTTYPES_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) +]) + +AC_DEFUN([gl_INTTYPES_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_IMAXABS=1; AC_SUBST([HAVE_DECL_IMAXABS]) + HAVE_DECL_IMAXDIV=1; AC_SUBST([HAVE_DECL_IMAXDIV]) + HAVE_DECL_STRTOIMAX=1; AC_SUBST([HAVE_DECL_STRTOIMAX]) + HAVE_DECL_STRTOUMAX=1; AC_SUBST([HAVE_DECL_STRTOUMAX]) + HAVE_IMAXDIV_T=1; AC_SUBST([HAVE_IMAXDIV_T]) + HAVE_IMAXABS=1; AC_SUBST([HAVE_IMAXABS]) + HAVE_IMAXDIV=1; AC_SUBST([HAVE_IMAXDIV]) + REPLACE_IMAXABS=0; AC_SUBST([REPLACE_IMAXABS]) + REPLACE_IMAXDIV=0; AC_SUBST([REPLACE_IMAXDIV]) + REPLACE_STRTOIMAX=0; AC_SUBST([REPLACE_STRTOIMAX]) + REPLACE_STRTOUMAX=0; AC_SUBST([REPLACE_STRTOUMAX]) + INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX]) + INT64_MAX_EQ_LONG_MAX='defined _LP64'; AC_SUBST([INT64_MAX_EQ_LONG_MAX]) + PRIPTR_PREFIX=__PRIPTR_PREFIX; AC_SUBST([PRIPTR_PREFIX]) + UINT32_MAX_LT_UINTMAX_MAX=1; AC_SUBST([UINT32_MAX_LT_UINTMAX_MAX]) + UINT64_MAX_EQ_ULONG_MAX='defined _LP64'; AC_SUBST([UINT64_MAX_EQ_ULONG_MAX]) +]) diff --git a/gl/m4/inttypes_h.m4 b/gl/m4/inttypes_h.m4 new file mode 100644 index 0000000..68c60e9 --- /dev/null +++ b/gl/m4/inttypes_h.m4 @@ -0,0 +1,29 @@ +# inttypes_h.m4 serial 10 +dnl Copyright (C) 1997-2004, 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_INTTYPES_H], +[ + AC_CACHE_CHECK([for inttypes.h], [gl_cv_header_inttypes_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#include <sys/types.h> +#include <inttypes.h> + ]], + [[uintmax_t i = (uintmax_t) -1; return !i;]])], + [gl_cv_header_inttypes_h=yes], + [gl_cv_header_inttypes_h=no])]) + if test $gl_cv_header_inttypes_h = yes; then + AC_DEFINE_UNQUOTED([HAVE_INTTYPES_H_WITH_UINTMAX], [1], + [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/ioctl.m4 b/gl/m4/ioctl.m4 new file mode 100644 index 0000000..83036c3 --- /dev/null +++ b/gl/m4/ioctl.m4 @@ -0,0 +1,44 @@ +# ioctl.m4 serial 6 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_IOCTL], +[ + AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) + AC_REQUIRE([gl_SYS_SOCKET_H]) + HAVE_IOCTL=1 + if test "$ac_cv_header_winsock2_h" = yes; then + dnl Even if the 'socket' module is not used here, another part of the + dnl application may use it and pass file descriptors that refer to + dnl sockets to the ioctl() function. So enable the support for sockets. + HAVE_IOCTL=0 + else + AC_CHECK_FUNCS([ioctl]) + dnl On glibc systems, the second parameter is 'unsigned long int request', + dnl not 'int request'. We cannot simply cast the function pointer, but + dnl instead need a wrapper. + AC_CACHE_CHECK([for ioctl with POSIX signature], + [gl_cv_func_ioctl_posix_signature], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/ioctl.h> + /* On some platforms, ioctl() is declared in <unistd.h>. */ + #include <unistd.h> + ]], + [[extern + #ifdef __cplusplus + "C" + #endif + int ioctl (int, int, ...); + ]]) + ], + [gl_cv_func_ioctl_posix_signature=yes], + [gl_cv_func_ioctl_posix_signature=no]) + ]) + if test $gl_cv_func_ioctl_posix_signature != yes; then + REPLACE_IOCTL=1 + fi + fi +]) diff --git a/gl/m4/isblank.m4 b/gl/m4/isblank.m4 new file mode 100644 index 0000000..809eab4 --- /dev/null +++ b/gl/m4/isblank.m4 @@ -0,0 +1,17 @@ +# isblank.m4 serial 3 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_ISBLANK], +[ + dnl Persuade glibc <ctype.h> to declare isblank(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([isblank]) + if test $ac_cv_func_isblank = no; then + HAVE_ISBLANK=0 + fi +]) diff --git a/gl/m4/langinfo_h.m4 b/gl/m4/langinfo_h.m4 new file mode 100644 index 0000000..b17a526 --- /dev/null +++ b/gl/m4/langinfo_h.m4 @@ -0,0 +1,137 @@ +# langinfo_h.m4 serial 12 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_LANGINFO_H], +[ + AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) + + dnl Persuade glibc-2.0.6 <langinfo.h> to define CODESET. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl <langinfo.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([langinfo.h]) + + dnl Determine whether <langinfo.h> exists. It is missing on mingw and BeOS. + HAVE_LANGINFO_CODESET=0 + HAVE_LANGINFO_T_FMT_AMPM=0 + HAVE_LANGINFO_ALTMON=0 + HAVE_LANGINFO_ERA=0 + HAVE_LANGINFO_YESEXPR=0 + AC_CHECK_HEADERS_ONCE([langinfo.h]) + if test $ac_cv_header_langinfo_h = yes; then + HAVE_LANGINFO_H=1 + dnl Determine what <langinfo.h> defines. + dnl CODESET is missing on OpenBSD 3.8. + dnl ERA etc. are missing on OpenBSD 6.7. + dnl T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3. + dnl ALTMON_* are missing on glibc 2.26 and many other systems. + AC_CACHE_CHECK([whether langinfo.h defines CODESET], + [gl_cv_header_langinfo_codeset], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +int a = CODESET; +]])], + [gl_cv_header_langinfo_codeset=yes], + [gl_cv_header_langinfo_codeset=no]) + ]) + if test $gl_cv_header_langinfo_codeset = yes; then + HAVE_LANGINFO_CODESET=1 + fi + AC_CACHE_CHECK([whether langinfo.h defines T_FMT_AMPM], + [gl_cv_header_langinfo_t_fmt_ampm], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +int a = T_FMT_AMPM; +]])], + [gl_cv_header_langinfo_t_fmt_ampm=yes], + [gl_cv_header_langinfo_t_fmt_ampm=no]) + ]) + if test $gl_cv_header_langinfo_t_fmt_ampm = yes; then + HAVE_LANGINFO_T_FMT_AMPM=1 + fi + AC_CACHE_CHECK([whether langinfo.h defines ALTMON_1], + [gl_cv_header_langinfo_altmon], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +int a = ALTMON_1; +]])], + [gl_cv_header_langinfo_altmon=yes], + [gl_cv_header_langinfo_altmon=no]) + ]) + if test $gl_cv_header_langinfo_altmon = yes; then + HAVE_LANGINFO_ALTMON=1 + fi + AC_CACHE_CHECK([whether langinfo.h defines ERA], + [gl_cv_header_langinfo_era], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +int a = ERA; +]])], + [gl_cv_header_langinfo_era=yes], + [gl_cv_header_langinfo_era=no]) + ]) + if test $gl_cv_header_langinfo_era = yes; then + HAVE_LANGINFO_ERA=1 + fi + AC_CACHE_CHECK([whether langinfo.h defines YESEXPR], + [gl_cv_header_langinfo_yesexpr], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +int a = YESEXPR; +]])], + [gl_cv_header_langinfo_yesexpr=yes], + [gl_cv_header_langinfo_yesexpr=no]) + ]) + if test $gl_cv_header_langinfo_yesexpr = yes; then + HAVE_LANGINFO_YESEXPR=1 + fi + else + HAVE_LANGINFO_H=0 + fi + AC_SUBST([HAVE_LANGINFO_H]) + AC_SUBST([HAVE_LANGINFO_CODESET]) + AC_SUBST([HAVE_LANGINFO_T_FMT_AMPM]) + AC_SUBST([HAVE_LANGINFO_ALTMON]) + AC_SUBST([HAVE_LANGINFO_ERA]) + AC_SUBST([HAVE_LANGINFO_YESEXPR]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <langinfo.h> + ]], [nl_langinfo]) +]) + +# gl_LANGINFO_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_LANGINFO_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_LANGINFO_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NL_LANGINFO]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) +]) + +AC_DEFUN([gl_LANGINFO_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO]) + REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO]) +]) diff --git a/gl/m4/largefile.m4 b/gl/m4/largefile.m4 new file mode 100644 index 0000000..8b051c0 --- /dev/null +++ b/gl/m4/largefile.m4 @@ -0,0 +1,358 @@ +# Enable large files on systems where this is not the default. +# Enable support for files on Linux file systems with 64-bit inode numbers. + +# Copyright 1992-1996, 1998-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# The following macro works around a problem in Autoconf's AC_FUNC_FSEEKO: +# It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this +# setting of _LARGEFILE_SOURCE is needed so that <stdio.h> declares fseeko +# and ftello in C++ mode as well. +# This problem occurs in Autoconf 2.71 and earlier, which lack AC_SYS_YEAR2038. +AC_DEFUN([gl_SET_LARGEFILE_SOURCE], + m4_ifndef([AC_SYS_YEAR2038], [[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_FUNC_FSEEKO + case "$host_os" in + hpux*) + AC_DEFINE([_LARGEFILE_SOURCE], [1], + [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).]) + ;; + esac + ]]) +) + +m4_ifndef([AC_SYS_YEAR2038_RECOMMENDED], [ +# Support AC_SYS_YEAR2038_RECOMMENDED and related macros, even if +# Autoconf 2.71 or earlier. This code is taken from Autoconf master. + +# _AC_SYS_YEAR2038_TEST_CODE +# -------------------------- +# C code used to probe for time_t that can represent time points more +# than 2**31 - 1 seconds after the epoch. With the usual Unix epoch, +# these correspond to dates after 2038-01-18 22:14:07 +0000 (Gregorian), +# hence the name. +AC_DEFUN([_AC_SYS_YEAR2038_TEST_CODE], +[[ + #include <time.h> + /* Check that time_t can represent 2**32 - 1 correctly. */ + #define LARGE_TIME_T \\ + ((time_t) (((time_t) 1 << 30) - 1 + 3 * ((time_t) 1 << 30))) + int verify_time_t_range[(LARGE_TIME_T / 65537 == 65535 + && LARGE_TIME_T % 65537 == 0) + ? 1 : -1]; +]]) + +# _AC_SYS_YEAR2038_OPTIONS +# ------------------------ +# List of known ways to enable support for large time_t. If you change +# this list you probably also need to change the AS_CASE at the end of +# _AC_SYS_YEAR2038_PROBE. +m4_define([_AC_SYS_YEAR2038_OPTIONS], m4_normalize( + ["none needed"] dnl 64-bit and newer 32-bit Unix + ["-D_TIME_BITS=64"] dnl glibc 2.34 with some 32-bit ABIs + ["-D__MINGW_USE_VC2005_COMPAT"] dnl 32-bit MinGW + ["-U_USE_32_BIT_TIME_T -D__MINGW_USE_VC2005_COMPAT"] + dnl 32-bit MinGW (misconfiguration) +)) + +# _AC_SYS_YEAR2038_PROBE +# ---------------------- +# Subroutine of AC_SYS_YEAR2038. Probe for time_t that can represent +# time points more than 2**31 - 1 seconds after the epoch (dates after +# 2038-01-18, see above) and set the cache variable ac_cv_sys_year2038_opts +# to one of the values in the _AC_SYS_YEAR2038_OPTIONS list, or to +# "support not detected" if none of them worked. Then, set compilation +# options and #defines as necessary to enable large time_t support. +# +# Note that we do not test whether mktime, localtime, etc. handle +# large values of time_t correctly, as that would require use of +# AC_TRY_RUN. Note also that some systems only support large time_t +# together with large off_t. +# +# If you change this macro you may also need to change +# _AC_SYS_YEAR2038_OPTIONS. +AC_DEFUN([_AC_SYS_YEAR2038_PROBE], +[AC_CACHE_CHECK([for $CC option for timestamps after 2038], + [ac_cv_sys_year2038_opts], + [ac_save_CPPFLAGS="$CPPFLAGS" + ac_opt_found=no + for ac_opt in _AC_SYS_YEAR2038_OPTIONS; do + AS_IF([test x"$ac_opt" != x"none needed"], + [CPPFLAGS="$ac_save_CPPFLAGS $ac_opt"]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_AC_SYS_YEAR2038_TEST_CODE])], + [ac_cv_sys_year2038_opts="$ac_opt" + ac_opt_found=yes]) + test $ac_opt_found = no || break + done + CPPFLAGS="$ac_save_CPPFLAGS" + test $ac_opt_found = yes || ac_cv_sys_year2038_opts="support not detected"]) + +ac_have_year2038=yes +AS_CASE([$ac_cv_sys_year2038_opts], + ["none needed"], [], + ["support not detected"], + [ac_have_year2038=no], + + ["-D_TIME_BITS=64"], + [AC_DEFINE([_TIME_BITS], [64], + [Number of bits in time_t, on hosts where this is settable.])], + + ["-D__MINGW_USE_VC2005_COMPAT"], + [AC_DEFINE([__MINGW_USE_VC2005_COMPAT], [1], + [Define to 1 on platforms where this makes time_t a 64-bit type.])], + + ["-U_USE_32_BIT_TIME_T"*], + [AC_MSG_FAILURE(m4_text_wrap( + [the 'time_t' type is currently forced to be 32-bit. + It will stop working after mid-January 2038. + Remove _USE_32BIT_TIME_T from the compiler flags.], + [], [], [55]))], + + [AC_MSG_ERROR( + [internal error: bad value for \$ac_cv_sys_year2038_opts])]) +]) + +# _AC_SYS_YEAR2038_ENABLE +# ----------------------- +# Depending on which of the YEAR2038 macros was used, add either an +# --enable-year2038 or a --disable-year2038 to +# the configure script. This is expanded very late and +# therefore there cannot be any code in the AC_ARG_ENABLE. The +# default value for 'enable_year2038' is emitted unconditionally +# because the generated code always looks at this variable. +m4_define([_AC_SYS_YEAR2038_ENABLE], +[m4_divert_text([DEFAULTS], + m4_provide_if([AC_SYS_YEAR2038], + [enable_year2038=yes], + [enable_year2038=no]))]dnl +[AC_ARG_ENABLE([year2038], + m4_provide_if([AC_SYS_YEAR2038], + [AS_HELP_STRING([--disable-year2038], + [don't support timestamps after 2038])], + [AS_HELP_STRING([--enable-year2038], + [support timestamps after 2038])]))]) + +# AC_SYS_YEAR2038 +# --------------- +# Attempt to detect and activate support for large time_t. +# On systems where time_t is not always 64 bits, this probe can be +# skipped by passing the --disable-year2038 option to configure. +AC_DEFUN([AC_SYS_YEAR2038], +[AC_REQUIRE([AC_SYS_LARGEFILE])dnl +AS_IF([test "$enable_year2038,$ac_have_year2038,$cross_compiling" = yes,no,no], + [# If we're not cross compiling and 'touch' works with a large + # timestamp, then we can presume the system supports wider time_t + # *somehow* and we just weren't able to detect it. One common + # case that we deliberately *don't* probe for is a system that + # supports both 32- and 64-bit ABIs but only the 64-bit ABI offers + # wide time_t. (It would be inappropriate for us to override an + # intentional use of -m32.) Error out, demanding use of + # --disable-year2038 if this is intentional. + AS_IF([TZ=UTC0 touch -t 210602070628.15 conftest.time 2>/dev/null], + [AS_CASE([`TZ=UTC0 LC_ALL=C ls -l conftest.time 2>/dev/null`], + [*'Feb 7 2106'* | *'Feb 7 17:10'*], + [AC_MSG_FAILURE(m4_text_wrap( + [this system appears to support timestamps after mid-January 2038, + but no mechanism for enabling wide 'time_t' was detected. + Did you mean to build a 64-bit binary? (E.g., 'CC="${CC} -m64"'.) + To proceed with 32-bit time_t, configure with '--disable-year2038'.], + [], [], [55]))])])])]) + +# AC_SYS_YEAR2038_RECOMMENDED +# --------------------------- +# Same as AC_SYS_YEAR2038, but recommend support for large time_t. +# If we cannot find any way to make time_t capable of representing +# values larger than 2**31 - 1, error out unless --disable-year2038 is given. +AC_DEFUN([AC_SYS_YEAR2038_RECOMMENDED], +[AC_REQUIRE([AC_SYS_YEAR2038])dnl +AS_IF([test "$enable_year2038,$ac_have_year2038" = yes,no], + [AC_MSG_FAILURE(m4_text_wrap( + [could not enable timestamps after mid-January 2038. + This package recommends support for these later timestamps. + However, to proceed with signed 32-bit time_t even though it + will fail then, configure with '--disable-year2038'.], + [], [], [55]))])]) + +# _AC_SYS_LARGEFILE_TEST_CODE +# --------------------------- +# C code used to probe for large file support. +m4_define([_AC_SYS_LARGEFILE_TEST_CODE], +[@%:@include <sys/types.h> +@%:@ifndef FTYPE +@%:@ define FTYPE off_t +@%:@endif + /* Check that FTYPE can represent 2**63 - 1 correctly. + We can't simply define LARGE_FTYPE to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +@%:@define LARGE_FTYPE (((FTYPE) 1 << 31 << 31) - 1 + ((FTYPE) 1 << 31 << 31)) + int FTYPE_is_large[[(LARGE_FTYPE % 2147483629 == 721 + && LARGE_FTYPE % 2147483647 == 1) + ? 1 : -1]];[]dnl +]) +# Defined by Autoconf 2.71 and circa 2022 Gnulib unwisely depended on it. +m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES], [_AC_SYS_LARGEFILE_TEST_CODE]) + +# _AC_SYS_LARGEFILE_OPTIONS +# ------------------------- +# List of known ways to enable support for large files. If you change +# this list you probably also need to change the AS_CASE at the end of +# _AC_SYS_LARGEFILE_PROBE. +m4_define([_AC_SYS_LARGEFILE_OPTIONS], m4_normalize( + ["none needed"] dnl Most current systems + ["-D_FILE_OFFSET_BITS=64"] dnl X/Open LFS spec + ["-D_LARGE_FILES=1"] dnl 32-bit AIX 4.2.1+, 32-bit z/OS + ["-n32"] dnl 32-bit IRIX 6, SGI cc (obsolete) +)) + +# _AC_SYS_LARGEFILE_PROBE +# ----------------------- +# Subroutine of AC_SYS_LARGEFILE. Probe for large file support and set +# the cache variable ac_cv_sys_largefile_opts to one of the values in +# the _AC_SYS_LARGEFILE_OPTIONS list, or to "support not detected" if +# none of the options in that list worked. Then, set compilation +# options and #defines as necessary to enable large file support. +# +# If large file support is not detected, the behavior depends on which of +# the top-level AC_SYS_LARGEFILE macros was used (see below). +# +# If you change this macro you may also need to change +# _AC_SYS_LARGEFILE_OPTIONS. +AC_DEFUN([_AC_SYS_LARGEFILE_PROBE], +[AC_CACHE_CHECK([for $CC option to enable large file support], + [ac_cv_sys_largefile_opts], + [ac_save_CC="$CC" + ac_opt_found=no + for ac_opt in _AC_SYS_LARGEFILE_OPTIONS; do + AS_IF([test x"$ac_opt" != x"none needed"], + [CC="$ac_save_CC $ac_opt"]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_CODE])], + [AS_IF([test x"$ac_opt" = x"none needed"], + [# GNU/Linux s390x and alpha need _FILE_OFFSET_BITS=64 for wide ino_t. + CC="$CC -DFTYPE=ino_t" + AC_COMPILE_IFELSE([], [], + [CC="$CC -D_FILE_OFFSET_BITS=64" + AC_COMPILE_IFELSE([], [ac_opt='-D_FILE_OFFSET_BITS=64'])])]) + ac_cv_sys_largefile_opts=$ac_opt + ac_opt_found=yes]) + test $ac_opt_found = no || break + done + CC="$ac_save_CC" + dnl Gnulib implements large file support for native Windows, based on the + dnl variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE. + m4_ifdef([gl_LARGEFILE], [ + AC_REQUIRE([AC_CANONICAL_HOST]) + if test $ac_opt_found != yes; then + AS_CASE([$host_os], + [mingw*], + [ac_cv_sys_largefile_opts="supported through gnulib" + ac_opt_found=yes] + ) + fi + ]) + test $ac_opt_found = yes || ac_cv_sys_largefile_opts="support not detected"]) + +ac_have_largefile=yes +AS_CASE([$ac_cv_sys_largefile_opts], + ["none needed"], [], + ["supported through gnulib"], [], + ["support not detected"], + [ac_have_largefile=no], + + ["-D_FILE_OFFSET_BITS=64"], + [AC_DEFINE([_FILE_OFFSET_BITS], [64], + [Number of bits in a file offset, on hosts where this is settable.])], + + ["-D_LARGE_FILES=1"], + [AC_DEFINE([_LARGE_FILES], [1], + [Define to 1 on platforms where this makes off_t a 64-bit type.])], + + ["-n32"], + [CC="$CC -n32"], + + [AC_MSG_ERROR( + [internal error: bad value for \$ac_cv_sys_largefile_opts])]) + +AS_IF([test "$enable_year2038" != no], + [_AC_SYS_YEAR2038_PROBE]) +AC_CONFIG_COMMANDS_PRE([_AC_SYS_YEAR2038_ENABLE])]) + +# AC_SYS_LARGEFILE +# ---------------- +# By default, many hosts won't let programs access large files; +# one must use special compiler options to get large-file access to work. +# For more details about this brain damage please see: +# http://www.unix.org/version2/whatsnew/lfs20mar.html +# Additionally, on Linux file systems with 64-bit inodes a file that happens +# to have a 64-bit inode number cannot be accessed by 32-bit applications on +# Linux x86/x86_64. This can occur with file systems such as XFS and NFS. +AC_DEFUN([AC_SYS_LARGEFILE], +[AC_ARG_ENABLE([largefile], + [AS_HELP_STRING([--disable-largefile], + [omit support for large files])])dnl +AS_IF([test "$enable_largefile,$enable_year2038" != no,no], + [_AC_SYS_LARGEFILE_PROBE])]) +])# m4_ifndef AC_SYS_YEAR2038_RECOMMENDED + +# Enable large files on systems where this is implemented by Gnulib, not by the +# system headers. +# Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib +# overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively. +AC_DEFUN([gl_LARGEFILE], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + dnl Native Windows. + dnl mingw64 defines off_t to a 64-bit type already, if + dnl _FILE_OFFSET_BITS=64, which is ensured by AC_SYS_LARGEFILE. + AC_CACHE_CHECK([for 64-bit off_t], [gl_cv_type_off_t_64], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1]; + ]], + [[]])], + [gl_cv_type_off_t_64=yes], [gl_cv_type_off_t_64=no]) + ]) + if test $gl_cv_type_off_t_64 = no; then + WINDOWS_64_BIT_OFF_T=1 + else + WINDOWS_64_BIT_OFF_T=0 + fi + dnl Some mingw versions define, if _FILE_OFFSET_BITS=64, 'struct stat' + dnl to 'struct _stat32i64' or 'struct _stat64' (depending on + dnl _USE_32BIT_TIME_T), which has a 32-bit st_size member. + AC_CACHE_CHECK([for 64-bit st_size], [gl_cv_member_st_size_64], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + struct stat buf; + int verify_st_size_size[sizeof (buf.st_size) >= 8 ? 1 : -1]; + ]], + [[]])], + [gl_cv_member_st_size_64=yes], [gl_cv_member_st_size_64=no]) + ]) + if test $gl_cv_member_st_size_64 = no; then + WINDOWS_64_BIT_ST_SIZE=1 + else + WINDOWS_64_BIT_ST_SIZE=0 + fi + ;; + *) + dnl Nothing to do on gnulib's side. + dnl A 64-bit off_t is + dnl - already the default on Mac OS X, FreeBSD, NetBSD, OpenBSD, IRIX, + dnl OSF/1, Cygwin, + dnl - enabled by _FILE_OFFSET_BITS=64 (ensured by AC_SYS_LARGEFILE) on + dnl glibc, HP-UX, Solaris, + dnl - enabled by _LARGE_FILES=1 (ensured by AC_SYS_LARGEFILE) on AIX, + dnl - impossible to achieve on Minix 3.1.8. + WINDOWS_64_BIT_OFF_T=0 + WINDOWS_64_BIT_ST_SIZE=0 + ;; + esac +]) diff --git a/gl/m4/lchown.m4 b/gl/m4/lchown.m4 new file mode 100644 index 0000000..c3e6c11 --- /dev/null +++ b/gl/m4/lchown.m4 @@ -0,0 +1,38 @@ +# serial 17 +# Determine whether we need the lchown wrapper. + +dnl Copyright (C) 1998, 2001, 2003-2007, 2009-2023 Free Software Foundation, +dnl Inc. + +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering. +dnl Provide lchown on systems that lack it, and work around bugs +dnl on systems that have it. + +AC_DEFUN([gl_FUNC_LCHOWN], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_CHOWN]) + AC_CHECK_FUNCS_ONCE([lchmod]) + AC_CHECK_FUNCS([lchown]) + if test $ac_cv_func_lchown = no; then + HAVE_LCHOWN=0 + else + dnl Trailing slash and ctime bugs in chown also occur in lchown. + case "$gl_cv_func_chown_slash_works" in + *yes) ;; + *) + REPLACE_LCHOWN=1 + ;; + esac + case "$gl_cv_func_chown_ctime_works" in + *yes) ;; + *) + REPLACE_LCHOWN=1 + ;; + esac + fi +]) diff --git a/gl/m4/lcmessage.m4 b/gl/m4/lcmessage.m4 new file mode 100644 index 0000000..d62a175 --- /dev/null +++ b/gl/m4/lcmessage.m4 @@ -0,0 +1,35 @@ +# lcmessage.m4 serial 7 (gettext-0.18.2) +dnl Copyright (C) 1995-2002, 2004-2005, 2008-2013 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1995. + +# Check whether LC_MESSAGES is available in <locale.h>. + +AC_DEFUN([gt_LC_MESSAGES], +[ + AC_CACHE_CHECK([for LC_MESSAGES], [gt_cv_val_LC_MESSAGES], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h>]], + [[return LC_MESSAGES]])], + [gt_cv_val_LC_MESSAGES=yes], + [gt_cv_val_LC_MESSAGES=no])]) + if test $gt_cv_val_LC_MESSAGES = yes; then + AC_DEFINE([HAVE_LC_MESSAGES], [1], + [Define if your <locale.h> file defines LC_MESSAGES.]) + fi +]) diff --git a/gl/m4/lib-ignore.m4 b/gl/m4/lib-ignore.m4 new file mode 100644 index 0000000..c4d0217 --- /dev/null +++ b/gl/m4/lib-ignore.m4 @@ -0,0 +1,115 @@ +# If possible, ignore libraries that are not depended on. + +dnl Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +# gl_IGNORE_UNUSED_LIBRARIES +# -------------------------- +# Determines the option to be passed to the C/C++/Fortran compiler, so that it +# omits unused libraries. +# Example (on Solaris): +# $ cc foo.c -lnsl; ldd ./a.out +# libnsl.so.1 => /lib/libnsl.so.1 +# libc.so.1 => /lib/libc.so.1 +# libmp.so.2 => /lib/libmp.so.2 +# libmd.so.1 => /lib/libmd.so.1 +# libscf.so.1 => /lib/libscf.so.1 +# libdoor.so.1 => /lib/libdoor.so.1 +# libuutil.so.1 => /lib/libuutil.so.1 +# libgen.so.1 => /lib/libgen.so.1 +# libm.so.2 => /lib/libm.so.2 +# $ cc foo.c -lnsl -Wl,-z,ignore; ldd ./a.out +# libc.so.1 => /lib/libc.so.1 +# libm.so.2 => /lib/libm.so.2 +# +# Note that the option works only for the C compiler, not for the C++ +# compiler: +# - Sun C likes '-Wl,-z,ignore'. +# '-Qoption ld -z,ignore' is not accepted. +# '-z ignore' is accepted but has no effect. +# - Sun C++ and Sun Fortran like '-Qoption ld -z,ignore'. +# '-Wl,-z,ignore' is not accepted. +# '-z ignore' is accepted but has no effect. +# +# Sets and substitutes a variable that depends on the current language: +# - IGNORE_UNUSED_LIBRARIES_CFLAGS for C +# - IGNORE_UNUSED_LIBRARIES_CXXFLAGS for C++ +# - IGNORE_UNUSED_LIBRARIES_FFLAGS for Fortran +# +# Note that the option works only for direct invocation of the compiler, not +# through libtool: When libtool is used to create a shared library, it will +# honor and translate '-Wl,-z,ignore' to '-Qoption ld -z -Qoption ld ignore' +# if needed, but it will drop a '-Qoption ld -z,ignore' on the command line. +# +AC_DEFUN([gl_IGNORE_UNUSED_LIBRARIES], +[ + AC_CACHE_CHECK([for []_AC_LANG[] compiler flag to ignore unused libraries], + [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries], + [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries=none + gl_saved_ldflags=$LDFLAGS + gl_saved_libs=$LIBS + # Link with -lm to detect binutils 2.16 bug with --as-needed; see + # <https://lists.gnu.org/r/bug-gnulib/2006-06/msg00131.html>. + LIBS="$LIBS -lm" + # Use long option sequences like '-z ignore' to test for the feature, + # to forestall problems with linkers that have -z, -i, -g, -n, etc. flags. + # GCC + binutils likes '-Wl,--as-needed'. + # GCC + Solaris ld likes '-Wl,-z,ignore'. + # Sun C likes '-Wl,-z,ignore'. '-z ignore' is accepted but has no effect. + # Don't try bare '--as-needed'; nothing likes it and the HP-UX 11.11 + # native cc issues annoying warnings and then ignores it, + # which would cause us to incorrectly conclude that it worked. + for gl_flags in _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS + do + LDFLAGS="$gl_flags $LDFLAGS" + AC_LINK_IFELSE([AC_LANG_PROGRAM()], + [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries=$gl_flags]) + LDFLAGS=$gl_saved_ldflags + test "$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries" != none && + break + done + LIBS=$gl_saved_libs + ]) + IGNORE_UNUSED_LIBRARIES_[]_AC_LANG_PREFIX[]FLAGS= + if test "$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries" != none; then + IGNORE_UNUSED_LIBRARIES_[]_AC_LANG_PREFIX[]FLAGS="$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries" + fi + AC_SUBST([IGNORE_UNUSED_LIBRARIES_]_AC_LANG_PREFIX[FLAGS]) +]) + +# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS +# ----------------------------------- +# Expands to the language dependent options to be tried. +AC_DEFUN([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS], +[_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) + +# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C) +# -------------------------------------- +m4_define([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C)], +[ '-Wl,--as-needed' \ + '-Wl,-z,ignore' \ + '-z ignore' +]) + +# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++) +# ---------------------------------------- +m4_define([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++)], +[ '-Wl,--as-needed' \ + '-Qoption ld -z,ignore' \ + '-Wl,-z,ignore' \ + '-z ignore' +]) + +# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77) +# ----------------------------------------------- +m4_copy([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++)], + [_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77)]) + +# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran) +# -------------------------------------------- +m4_copy([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77)], + [_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran)]) diff --git a/gl/m4/lib-ld.m4 b/gl/m4/lib-ld.m4 new file mode 100644 index 0000000..acc6127 --- /dev/null +++ b/gl/m4/lib-ld.m4 @@ -0,0 +1,168 @@ +# lib-ld.m4 serial 11 +dnl Copyright (C) 1996-2003, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Subroutines of libtool.m4, +dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid +dnl collision with libtool.m4. + +dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no. +AC_DEFUN([AC_LIB_PROG_LD_GNU], +[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld], +[# I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 </dev/null` in +*GNU* | *'with BFD'*) + acl_cv_prog_gnu_ld=yes + ;; +*) + acl_cv_prog_gnu_ld=no + ;; +esac]) +with_gnu_ld=$acl_cv_prog_gnu_ld +]) + +dnl From libtool-2.4. Sets the variable LD. +AC_DEFUN([AC_LIB_PROG_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([[--with-gnu-ld]], + [assume the C compiler uses GNU ld [default=no]])], + [test "$withval" = no || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +# Prepare PATH_SEPARATOR. +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which + # contains only /bin. Note that ksh looks also at the FPATH variable, + # so we have to set that as well for the test. + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \ + && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \ + || PATH_SEPARATOR=';' + } +fi + +if test -n "$LD"; then + AC_MSG_CHECKING([for ld]) +elif test "$GCC" = yes; then + AC_MSG_CHECKING([for ld used by $CC]) +elif test "$with_gnu_ld" = yes; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +if test -n "$LD"; then + # Let the user override the test with a path. + : +else + AC_CACHE_VAL([acl_cv_path_LD], + [ + acl_cv_path_LD= # Final result of this test + ac_prog=ld # Program to search in $PATH + if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + acl_output=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $acl_output in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'` + while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do + acl_output=`echo $acl_output | sed "s%$re_direlt%/%"` + done + # Got the pathname. No search in PATH is needed. + acl_cv_path_LD="$acl_output" + ac_prog= + ;; + "") + # If it fails, then pretend we aren't using GCC. + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac + fi + if test -n "$ac_prog"; then + # Search for $ac_prog in $PATH. + acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$acl_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + test "$with_gnu_ld" != no && break + ;; + *) + test "$with_gnu_ld" != yes && break + ;; + esac + fi + done + IFS="$acl_save_ifs" + fi + case $host in + *-*-aix*) + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [# The compiler produces 64-bit code. Add option '-b64' so that the + # linker groks 64-bit object files. + case "$acl_cv_path_LD " in + *" -b64 "*) ;; + *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;; + esac + ], []) + ;; + sparc64-*-netbsd*) + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [], + [# The compiler produces 32-bit code. Add option '-m elf32_sparc' + # so that the linker groks 32-bit object files. + case "$acl_cv_path_LD " in + *" -m elf32_sparc "*) ;; + *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;; + esac + ]) + ;; + esac + ]) + LD="$acl_cv_path_LD" +fi +if test -n "$LD"; then + AC_MSG_RESULT([$LD]) +else + AC_MSG_RESULT([no]) + AC_MSG_ERROR([no acceptable ld found in \$PATH]) +fi +AC_LIB_PROG_LD_GNU +]) diff --git a/gl/m4/lib-link.m4 b/gl/m4/lib-link.m4 new file mode 100644 index 0000000..5f8afae --- /dev/null +++ b/gl/m4/lib-link.m4 @@ -0,0 +1,813 @@ +# lib-link.m4 serial 33 +dnl Copyright (C) 2001-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_PREREQ([2.61]) + +dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and +dnl the libraries corresponding to explicit and implicit dependencies. +dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and +dnl augments the CPPFLAGS variable. +dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname +dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. +AC_DEFUN([AC_LIB_LINKFLAGS], +[ + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + pushdef([Name],[m4_translit([$1],[./+-], [____])]) + pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [ + AC_LIB_LINKFLAGS_BODY([$1], [$2]) + ac_cv_lib[]Name[]_libs="$LIB[]NAME" + ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" + ac_cv_lib[]Name[]_cppflags="$INC[]NAME" + ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX" + ]) + LIB[]NAME="$ac_cv_lib[]Name[]_libs" + LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" + INC[]NAME="$ac_cv_lib[]Name[]_cppflags" + LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) + AC_SUBST([LIB]NAME) + AC_SUBST([LTLIB]NAME) + AC_SUBST([LIB]NAME[_PREFIX]) + dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the + dnl results of this search when this library appears as a dependency. + HAVE_LIB[]NAME=yes + popdef([NAME]) + popdef([Name]) +]) + +dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode, [missing-message]) +dnl searches for libname and the libraries corresponding to explicit and +dnl implicit dependencies, together with the specified include files and +dnl the ability to compile and link the specified testcode. The missing-message +dnl defaults to 'no' and may contain additional hints for the user. +dnl If found, it sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} +dnl and LTLIB${NAME} variables and augments the CPPFLAGS variable, and +dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs +dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. +dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname +dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. +AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], +[ + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + pushdef([Name],[m4_translit([$1],[./+-], [____])]) + pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + + dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME + dnl accordingly. + AC_LIB_LINKFLAGS_BODY([$1], [$2]) + + dnl Add $INC[]NAME to CPPFLAGS before performing the following checks, + dnl because if the user has installed lib[]Name and not disabled its use + dnl via --without-lib[]Name-prefix, he wants to use it. + ac_save_CPPFLAGS="$CPPFLAGS" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) + + AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [ + ac_save_LIBS="$LIBS" + dnl If $LIB[]NAME contains some -l options, add it to the end of LIBS, + dnl because these -l options might require -L options that are present in + dnl LIBS. -l options benefit only from the -L options listed before it. + dnl Otherwise, add it to the front of LIBS, because it may be a static + dnl library that depends on another static library that is present in LIBS. + dnl Static libraries benefit only from the static libraries listed after + dnl it. + case " $LIB[]NAME" in + *" -l"*) LIBS="$LIBS $LIB[]NAME" ;; + *) LIBS="$LIB[]NAME $LIBS" ;; + esac + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[$3]], [[$4]])], + [ac_cv_lib[]Name=yes], + [ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])']) + LIBS="$ac_save_LIBS" + ]) + if test "$ac_cv_lib[]Name" = yes; then + HAVE_LIB[]NAME=yes + AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the lib][$1 library.]) + AC_MSG_CHECKING([how to link with lib[]$1]) + AC_MSG_RESULT([$LIB[]NAME]) + else + HAVE_LIB[]NAME=no + dnl If $LIB[]NAME didn't lead to a usable library, we don't need + dnl $INC[]NAME either. + CPPFLAGS="$ac_save_CPPFLAGS" + LIB[]NAME= + LTLIB[]NAME= + LIB[]NAME[]_PREFIX= + fi + AC_SUBST([HAVE_LIB]NAME) + AC_SUBST([LIB]NAME) + AC_SUBST([LTLIB]NAME) + AC_SUBST([LIB]NAME[_PREFIX]) + popdef([NAME]) + popdef([Name]) +]) + +dnl Determine the platform dependent parameters needed to use rpath: +dnl acl_libext, +dnl acl_shlibext, +dnl acl_libname_spec, +dnl acl_library_names_spec, +dnl acl_hardcode_libdir_flag_spec, +dnl acl_hardcode_libdir_separator, +dnl acl_hardcode_direct, +dnl acl_hardcode_minus_L. +AC_DEFUN([AC_LIB_RPATH], +[ + dnl Complain if config.rpath is missing. + AC_REQUIRE_AUX_FILE([config.rpath]) + AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS + AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld + AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host + AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir + AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [ + CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ + ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh + . ./conftest.sh + rm -f ./conftest.sh + acl_cv_rpath=done + ]) + wl="$acl_cv_wl" + acl_libext="$acl_cv_libext" + acl_shlibext="$acl_cv_shlibext" + acl_libname_spec="$acl_cv_libname_spec" + acl_library_names_spec="$acl_cv_library_names_spec" + acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" + acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" + acl_hardcode_direct="$acl_cv_hardcode_direct" + acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" + dnl Determine whether the user wants rpath handling at all. + AC_ARG_ENABLE([rpath], + [ --disable-rpath do not hardcode runtime library paths], + :, enable_rpath=yes) +]) + +dnl AC_LIB_FROMPACKAGE(name, package) +dnl declares that libname comes from the given package. The configure file +dnl will then not have a --with-libname-prefix option but a +dnl --with-package-prefix option. Several libraries can come from the same +dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar +dnl macro call that searches for libname. +AC_DEFUN([AC_LIB_FROMPACKAGE], +[ + pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + define([acl_frompackage_]NAME, [$2]) + popdef([NAME]) + pushdef([PACK],[$2]) + pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + define([acl_libsinpackage_]PACKUP, + m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1]) + popdef([PACKUP]) + popdef([PACK]) +]) + +dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and +dnl the libraries corresponding to explicit and implicit dependencies. +dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. +dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found +dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. +AC_DEFUN([AC_LIB_LINKFLAGS_BODY], +[ + AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) + pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])]) + pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) + pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) + dnl By default, look in $includedir and $libdir. + use_additional=yes + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" + ]) + AC_ARG_WITH(PACK[-prefix], +[[ --with-]]PACK[[-prefix[=DIR] search for ]]PACKLIBS[[ in DIR/include and DIR/lib + --without-]]PACK[[-prefix don't search for ]]PACKLIBS[[ in includedir and libdir]], +[ + if test "X$withval" = "Xno"; then + use_additional=no + else + if test "X$withval" = "X"; then + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" + ]) + else + additional_includedir="$withval/include" + additional_libdir="$withval/$acl_libdirstem" + additional_libdir2="$withval/$acl_libdirstem2" + additional_libdir3="$withval/$acl_libdirstem3" + fi + fi +]) + if test "X$additional_libdir2" = "X$additional_libdir"; then + additional_libdir2= + fi + if test "X$additional_libdir3" = "X$additional_libdir"; then + additional_libdir3= + fi + dnl Search the library and its dependencies in $additional_libdir and + dnl $LDFLAGS. Use breadth-first search. + LIB[]NAME= + LTLIB[]NAME= + INC[]NAME= + LIB[]NAME[]_PREFIX= + dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been + dnl computed. So it has to be reset here. + HAVE_LIB[]NAME= + rpathdirs= + ltrpathdirs= + names_already_handled= + names_next_round='$1 $2' + while test -n "$names_next_round"; do + names_this_round="$names_next_round" + names_next_round= + for name in $names_this_round; do + already_handled= + for n in $names_already_handled; do + if test "$n" = "$name"; then + already_handled=yes + break + fi + done + if test -z "$already_handled"; then + names_already_handled="$names_already_handled $name" + dnl See if it was already located by an earlier AC_LIB_LINKFLAGS + dnl or AC_LIB_HAVE_LINKFLAGS call. + uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'` + eval value=\"\$HAVE_LIB$uppername\" + if test -n "$value"; then + if test "$value" = yes; then + eval value=\"\$LIB$uppername\" + test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" + eval value=\"\$LTLIB$uppername\" + test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" + else + dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined + dnl that this library doesn't exist. So just drop it. + : + fi + else + dnl Search the library lib$name in $additional_libdir and $LDFLAGS + dnl and the already constructed $LIBNAME/$LTLIBNAME. + found_dir= + found_la= + found_so= + found_a= + eval libname=\"$acl_libname_spec\" # typically: libname=lib$name + if test -n "$acl_shlibext"; then + shrext=".$acl_shlibext" # typically: shrext=.so + else + shrext= + fi + if test $use_additional = yes; then + for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do + if test "X$found_dir" = "X"; then + eval dir=\$$additional_libdir_variable + if test -n "$dir"; then + dnl The same code as in the loop below: + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then + found_dir="$dir" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done + fi + fi + fi + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then + found_dir="$dir" + found_a="$dir/$libname.$acl_libext" + fi + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi + fi + fi + done + fi + if test "X$found_dir" = "X"; then + for x in $LDFLAGS $LTLIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + case "$x" in + -L*) + dir=`echo "X$x" | sed -e 's/^X-L//'` + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then + found_dir="$dir" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done + fi + fi + fi + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then + found_dir="$dir" + found_a="$dir/$libname.$acl_libext" + fi + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi + ;; + esac + if test "X$found_dir" != "X"; then + break + fi + done + fi + if test "X$found_dir" != "X"; then + dnl Found the library. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" + if test "X$found_so" != "X"; then + dnl Linking with a shared library. We attempt to hardcode its + dnl directory into the executable's runpath, unless it's the + dnl standard /usr/lib. + if test "$enable_rpath" = no \ + || test "X$found_dir" = "X/usr/$acl_libdirstem" \ + || test "X$found_dir" = "X/usr/$acl_libdirstem2" \ + || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then + dnl No hardcoding is needed. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + dnl Use an explicit option to hardcode DIR into the resulting + dnl binary. + dnl Potentially add DIR to ltrpathdirs. + dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $found_dir" + fi + dnl The hardcoding into $LIBNAME is system dependent. + if test "$acl_hardcode_direct" = yes; then + dnl Using DIR/libNAME.so during linking hardcodes DIR into the + dnl resulting binary. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then + dnl Use an explicit option to hardcode DIR into the resulting + dnl binary. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + dnl Potentially add DIR to rpathdirs. + dnl The rpathdirs will be appended to $LIBNAME at the end. + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $found_dir" + fi + else + dnl Rely on "-L$found_dir". + dnl But don't add it if it's already contained in the LDFLAGS + dnl or the already constructed $LIBNAME + haveit= + for x in $LDFLAGS $LIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" + fi + if test "$acl_hardcode_minus_L" != no; then + dnl FIXME: Not sure whether we should use + dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" + dnl here. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH + dnl here, because this doesn't fit in flags passed to the + dnl compiler. So give up. No hardcoding. This affects only + dnl very old systems. + dnl FIXME: Not sure whether we should use + dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" + dnl here. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" + fi + fi + fi + fi + else + if test "X$found_a" != "X"; then + dnl Linking with a static library. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" + else + dnl We shouldn't come here, but anyway it's good to have a + dnl fallback. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" + fi + fi + dnl Assume the include files are nearby. + additional_includedir= + case "$found_dir" in + */$acl_libdirstem | */$acl_libdirstem/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; + */$acl_libdirstem2 | */$acl_libdirstem2/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; + */$acl_libdirstem3 | */$acl_libdirstem3/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem3/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; + esac + if test "X$additional_includedir" != "X"; then + dnl Potentially add $additional_includedir to $INCNAME. + dnl But don't add it + dnl 1. if it's the standard /usr/include, + dnl 2. if it's /usr/local/include and we are using GCC on Linux, + dnl 3. if it's already present in $CPPFLAGS or the already + dnl constructed $INCNAME, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_includedir" != "X/usr/include"; then + haveit= + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux* | gnu* | k*bsd*-gnu) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + for x in $CPPFLAGS $INC[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + dnl Really add $additional_includedir to $INCNAME. + INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" + fi + fi + fi + fi + fi + dnl Look for dependencies. + if test -n "$found_la"; then + dnl Read the .la file. It defines the variables + dnl dlname, library_names, old_library, dependency_libs, current, + dnl age, revision, installed, dlopen, dlpreopen, libdir. + save_libdir="$libdir" + case "$found_la" in + */* | *\\*) . "$found_la" ;; + *) . "./$found_la" ;; + esac + libdir="$save_libdir" + dnl We use only dependency_libs. + for dep in $dependency_libs; do + case "$dep" in + -L*) + dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + dnl Potentially add $dependency_libdir to $LIBNAME and $LTLIBNAME. + dnl But don't add it + dnl 1. if it's the standard /usr/lib, + dnl 2. if it's /usr/local/lib and we are using GCC on Linux, + dnl 3. if it's already present in $LDFLAGS or the already + dnl constructed $LIBNAME, + dnl 4. if it doesn't exist as a directory. + if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then + haveit= + if test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem2" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem3"; then + if test -n "$GCC"; then + case $host_os in + linux* | gnu* | k*bsd*-gnu) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + haveit= + for x in $LDFLAGS $LIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$dependency_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LIBNAME. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$dependency_libdir" + fi + fi + haveit= + for x in $LDFLAGS $LTLIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$dependency_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LTLIBNAME. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir" + fi + fi + fi + fi + ;; + -R*) + dir=`echo "X$dep" | sed -e 's/^X-R//'` + if test "$enable_rpath" != no; then + dnl Potentially add DIR to rpathdirs. + dnl The rpathdirs will be appended to $LIBNAME at the end. + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $dir" + fi + dnl Potentially add DIR to ltrpathdirs. + dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $dir" + fi + fi + ;; + -l*) + dnl Handle this in the next round. + dnl But on GNU systems, ignore -lc options, because + dnl - linking with libc is the default anyway, + dnl - linking with libc.a may produce an error + dnl "/usr/bin/ld: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality in `/usr/lib/libc.a(strcmp.o)' can not be used when making an executable; recompile with -fPIE and relink with -pie" + dnl or may produce an executable that always crashes, see + dnl <https://lists.gnu.org/archive/html/grep-devel/2020-09/msg00052.html>. + dep=`echo "X$dep" | sed -e 's/^X-l//'` + if test "X$dep" != Xc \ + || case $host_os in + linux* | gnu* | k*bsd*-gnu) false ;; + *) true ;; + esac; then + names_next_round="$names_next_round $dep" + fi + ;; + *.la) + dnl Handle this in the next round. Throw away the .la's + dnl directory; it is already contained in a preceding -L + dnl option. + names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` + ;; + *) + dnl Most likely an immediate library name. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" + ;; + esac + done + fi + else + dnl Didn't find the library; assume it is in the system directories + dnl known to the linker and runtime loader. (All the system + dnl directories known to the linker should also be known to the + dnl runtime loader, otherwise the system is severely misconfigured.) + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" + fi + fi + fi + done + done + if test "X$rpathdirs" != "X"; then + if test -n "$acl_hardcode_libdir_separator"; then + dnl Weird platform: only the last -rpath option counts, the user must + dnl pass all path elements in one option. We can arrange that for a + dnl single library, but not when more than one $LIBNAMEs are used. + alldirs= + for found_dir in $rpathdirs; do + alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" + done + dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. + acl_save_libdir="$libdir" + libdir="$alldirs" + eval flag=\"$acl_hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" + else + dnl The -rpath options are cumulative. + for found_dir in $rpathdirs; do + acl_save_libdir="$libdir" + libdir="$found_dir" + eval flag=\"$acl_hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" + done + fi + fi + if test "X$ltrpathdirs" != "X"; then + dnl When using libtool, the option that works for both libraries and + dnl executables is -R. The -R options are cumulative. + for found_dir in $ltrpathdirs; do + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" + done + fi + popdef([PACKLIBS]) + popdef([PACKUP]) + popdef([PACK]) + popdef([NAME]) +]) + +dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, +dnl unless already present in VAR. +dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes +dnl contains two or three consecutive elements that belong together. +AC_DEFUN([AC_LIB_APPENDTOVAR], +[ + for element in [$2]; do + haveit= + for x in $[$1]; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X$element"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + [$1]="${[$1]}${[$1]:+ }$element" + fi + done +]) + +dnl For those cases where a variable contains several -L and -l options +dnl referring to unknown libraries and directories, this macro determines the +dnl necessary additional linker options for the runtime path. +dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) +dnl sets LDADDVAR to linker options needed together with LIBSVALUE. +dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, +dnl otherwise linking without libtool is assumed. +AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], +[ + AC_REQUIRE([AC_LIB_RPATH]) + AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) + $1= + if test "$enable_rpath" != no; then + if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then + dnl Use an explicit option to hardcode directories into the resulting + dnl binary. + rpathdirs= + next= + for opt in $2; do + if test -n "$next"; then + dir="$next" + dnl No need to hardcode the standard /usr/lib. + if test "X$dir" != "X/usr/$acl_libdirstem" \ + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then + rpathdirs="$rpathdirs $dir" + fi + next= + else + case $opt in + -L) next=yes ;; + -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` + dnl No need to hardcode the standard /usr/lib. + if test "X$dir" != "X/usr/$acl_libdirstem" \ + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then + rpathdirs="$rpathdirs $dir" + fi + next= ;; + *) next= ;; + esac + fi + done + if test "X$rpathdirs" != "X"; then + if test -n ""$3""; then + dnl libtool is used for linking. Use -R options. + for dir in $rpathdirs; do + $1="${$1}${$1:+ }-R$dir" + done + else + dnl The linker is used for linking directly. + if test -n "$acl_hardcode_libdir_separator"; then + dnl Weird platform: only the last -rpath option counts, the user + dnl must pass all path elements in one option. + alldirs= + for dir in $rpathdirs; do + alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" + done + acl_save_libdir="$libdir" + libdir="$alldirs" + eval flag=\"$acl_hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + $1="$flag" + else + dnl The -rpath options are cumulative. + for dir in $rpathdirs; do + acl_save_libdir="$libdir" + libdir="$dir" + eval flag=\"$acl_hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + $1="${$1}${$1:+ }$flag" + done + fi + fi + fi + fi + fi + AC_SUBST([$1]) +]) diff --git a/gl/m4/lib-prefix.m4 b/gl/m4/lib-prefix.m4 new file mode 100644 index 0000000..aefe7f7 --- /dev/null +++ b/gl/m4/lib-prefix.m4 @@ -0,0 +1,323 @@ +# lib-prefix.m4 serial 20 +dnl Copyright (C) 2001-2005, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed +dnl to access previously installed libraries. The basic assumption is that +dnl a user will want packages to use other packages he previously installed +dnl with the same --prefix option. +dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate +dnl libraries, but is otherwise very convenient. +AC_DEFUN([AC_LIB_PREFIX], +[ + AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + dnl By default, look in $includedir and $libdir. + use_additional=yes + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + AC_ARG_WITH([lib-prefix], +[[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib + --without-lib-prefix don't search for libraries in includedir and libdir]], +[ + if test "X$withval" = "Xno"; then + use_additional=no + else + if test "X$withval" = "X"; then + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + else + additional_includedir="$withval/include" + additional_libdir="$withval/$acl_libdirstem" + fi + fi +]) + if test $use_additional = yes; then + dnl Potentially add $additional_includedir to $CPPFLAGS. + dnl But don't add it + dnl 1. if it's the standard /usr/include, + dnl 2. if it's already present in $CPPFLAGS, + dnl 3. if it's /usr/local/include and we are using GCC on Linux, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_includedir" != "X/usr/include"; then + haveit= + for x in $CPPFLAGS; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux* | gnu* | k*bsd*-gnu) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + dnl Really add $additional_includedir to $CPPFLAGS. + CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" + fi + fi + fi + fi + dnl Potentially add $additional_libdir to $LDFLAGS. + dnl But don't add it + dnl 1. if it's the standard /usr/lib, + dnl 2. if it's already present in $LDFLAGS, + dnl 3. if it's /usr/local/lib and we are using GCC on Linux, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then + haveit= + for x in $LDFLAGS; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + dnl Really add $additional_libdir to $LDFLAGS. + LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" + fi + fi + fi + fi + fi +]) + +dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, +dnl acl_final_exec_prefix, containing the values to which $prefix and +dnl $exec_prefix will expand at the end of the configure script. +AC_DEFUN([AC_LIB_PREPARE_PREFIX], +[ + dnl Unfortunately, prefix and exec_prefix get only finally determined + dnl at the end of configure. + if test "X$prefix" = "XNONE"; then + acl_final_prefix="$ac_default_prefix" + else + acl_final_prefix="$prefix" + fi + if test "X$exec_prefix" = "XNONE"; then + acl_final_exec_prefix='${prefix}' + else + acl_final_exec_prefix="$exec_prefix" + fi + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" + prefix="$acl_save_prefix" +]) + +dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the +dnl variables prefix and exec_prefix bound to the values they will have +dnl at the end of the configure script. +AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], +[ + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + $1 + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" +]) + +dnl AC_LIB_PREPARE_MULTILIB creates +dnl - a function acl_is_expected_elfclass, that tests whether standard input +dn; has a 32-bit or 64-bit ELF header, depending on the host CPU ABI, +dnl - 3 variables acl_libdirstem, acl_libdirstem2, acl_libdirstem3, containing +dnl the basename of the libdir to try in turn, either "lib" or "lib64" or +dnl "lib/64" or "lib32" or "lib/sparcv9" or "lib/amd64" or similar. +AC_DEFUN([AC_LIB_PREPARE_MULTILIB], +[ + dnl There is no formal standard regarding lib, lib32, and lib64. + dnl On most glibc systems, the current practice is that on a system supporting + dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under + dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. However, on + dnl Arch Linux based distributions, it's the opposite: 32-bit libraries go + dnl under $prefix/lib32 and 64-bit libraries go under $prefix/lib. + dnl We determine the compiler's default mode by looking at the compiler's + dnl library search path. If at least one of its elements ends in /lib64 or + dnl points to a directory whose absolute pathname ends in /lib64, we use that + dnl for 64-bit ABIs. Similarly for 32-bit ABIs. Otherwise we use the default, + dnl namely "lib". + dnl On Solaris systems, the current practice is that on a system supporting + dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under + dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or + dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_HOST_CPU_C_ABI_32BIT]) + + AC_CACHE_CHECK([for ELF binary format], [gl_cv_elf], + [AC_EGREP_CPP([Extensible Linking Format], + [#if defined __ELF__ || (defined __linux__ && defined __EDG__) + Extensible Linking Format + #endif + ], + [gl_cv_elf=yes], + [gl_cv_elf=no]) + ]) + if test $gl_cv_elf = yes; then + # Extract the ELF class of a file (5th byte) in decimal. + # Cf. https://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header + if od -A x < /dev/null >/dev/null 2>/dev/null; then + # Use POSIX od. + func_elfclass () + { + od -A n -t d1 -j 4 -N 1 + } + else + # Use BSD hexdump. + func_elfclass () + { + dd bs=1 count=1 skip=4 2>/dev/null | hexdump -e '1/1 "%3d "' + echo + } + fi + # Use 'expr', not 'test', to compare the values of func_elfclass, because on + # Solaris 11 OpenIndiana and Solaris 11 OmniOS, the result is 001 or 002, + # not 1 or 2. +changequote(,)dnl + case $HOST_CPU_C_ABI_32BIT in + yes) + # 32-bit ABI. + acl_is_expected_elfclass () + { + expr "`func_elfclass | sed -e 's/[ ]//g'`" = 1 > /dev/null + } + ;; + no) + # 64-bit ABI. + acl_is_expected_elfclass () + { + expr "`func_elfclass | sed -e 's/[ ]//g'`" = 2 > /dev/null + } + ;; + *) + # Unknown. + acl_is_expected_elfclass () + { + : + } + ;; + esac +changequote([,])dnl + else + acl_is_expected_elfclass () + { + : + } + fi + + dnl Allow the user to override the result by setting acl_cv_libdirstems. + AC_CACHE_CHECK([for the common suffixes of directories in the library search path], + [acl_cv_libdirstems], + [dnl Try 'lib' first, because that's the default for libdir in GNU, see + dnl <https://www.gnu.org/prep/standards/html_node/Directory-Variables.html>. + acl_libdirstem=lib + acl_libdirstem2= + acl_libdirstem3= + case "$host_os" in + solaris*) + dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment + dnl <https://docs.oracle.com/cd/E19253-01/816-5138/dev-env/index.html>. + dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." + dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the + dnl symlink is missing, so we set acl_libdirstem2 too. + if test $HOST_CPU_C_ABI_32BIT = no; then + acl_libdirstem2=lib/64 + case "$host_cpu" in + sparc*) acl_libdirstem3=lib/sparcv9 ;; + i*86 | x86_64) acl_libdirstem3=lib/amd64 ;; + esac + fi + ;; + *) + dnl If $CC generates code for a 32-bit ABI, the libraries are + dnl surely under $prefix/lib or $prefix/lib32, not $prefix/lib64. + dnl Similarly, if $CC generates code for a 64-bit ABI, the libraries + dnl are surely under $prefix/lib or $prefix/lib64, not $prefix/lib32. + dnl Find the compiler's search path. However, non-system compilers + dnl sometimes have odd library search paths. But we can't simply invoke + dnl '/usr/bin/gcc -print-search-dirs' because that would not take into + dnl account the -m32/-m31 or -m64 options from the $CC or $CFLAGS. + searchpath=`(LC_ALL=C $CC $CPPFLAGS $CFLAGS -print-search-dirs) 2>/dev/null \ + | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` + if test $HOST_CPU_C_ABI_32BIT != no; then + # 32-bit or unknown ABI. + if test -d /usr/lib32; then + acl_libdirstem2=lib32 + fi + fi + if test $HOST_CPU_C_ABI_32BIT != yes; then + # 64-bit or unknown ABI. + if test -d /usr/lib64; then + acl_libdirstem3=lib64 + fi + fi + if test -n "$searchpath"; then + acl_save_IFS="${IFS= }"; IFS=":" + for searchdir in $searchpath; do + if test -d "$searchdir"; then + case "$searchdir" in + */lib32/ | */lib32 ) acl_libdirstem2=lib32 ;; + */lib64/ | */lib64 ) acl_libdirstem3=lib64 ;; + */../ | */.. ) + # Better ignore directories of this form. They are misleading. + ;; + *) searchdir=`cd "$searchdir" && pwd` + case "$searchdir" in + */lib32 ) acl_libdirstem2=lib32 ;; + */lib64 ) acl_libdirstem3=lib64 ;; + esac ;; + esac + fi + done + IFS="$acl_save_IFS" + if test $HOST_CPU_C_ABI_32BIT = yes; then + # 32-bit ABI. + acl_libdirstem3= + fi + if test $HOST_CPU_C_ABI_32BIT = no; then + # 64-bit ABI. + acl_libdirstem2= + fi + fi + ;; + esac + test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" + test -n "$acl_libdirstem3" || acl_libdirstem3="$acl_libdirstem" + acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2,$acl_libdirstem3" + ]) + dnl Decompose acl_cv_libdirstems into acl_libdirstem, acl_libdirstem2, and + dnl acl_libdirstem3. +changequote(,)dnl + acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'` + acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,//' -e 's/,.*//'` + acl_libdirstem3=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,[^,]*,//' -e 's/,.*//'` +changequote([,])dnl +]) diff --git a/gl/m4/libtool.m4 b/gl/m4/libtool.m4 new file mode 100644 index 0000000..e7b6833 --- /dev/null +++ b/gl/m4/libtool.m4 @@ -0,0 +1,8427 @@ +# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- +# +# Copyright (C) 1996-2001, 2003-2019, 2021-2022 Free Software +# Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +m4_define([_LT_COPYING], [dnl +# Copyright (C) 2014 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program or library that is built +# using GNU Libtool, you may include this file under the same +# distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +]) + +# serial 59 LT_INIT + + +# LT_PREREQ(VERSION) +# ------------------ +# Complain and exit if this libtool version is less that VERSION. +m4_defun([LT_PREREQ], +[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, + [m4_default([$3], + [m4_fatal([Libtool version $1 or higher is required], + 63)])], + [$2])]) + + +# _LT_CHECK_BUILDDIR +# ------------------ +# Complain if the absolute build directory name contains unusual characters +m4_defun([_LT_CHECK_BUILDDIR], +[case `pwd` in + *\ * | *\ *) + AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; +esac +]) + + +# LT_INIT([OPTIONS]) +# ------------------ +AC_DEFUN([LT_INIT], +[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK +AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl +AC_BEFORE([$0], [LT_LANG])dnl +AC_BEFORE([$0], [LT_OUTPUT])dnl +AC_BEFORE([$0], [LTDL_INIT])dnl +m4_require([_LT_CHECK_BUILDDIR])dnl + +dnl Autoconf doesn't catch unexpanded LT_ macros by default: +m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl +m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl +dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 +dnl unless we require an AC_DEFUNed macro: +AC_REQUIRE([LTOPTIONS_VERSION])dnl +AC_REQUIRE([LTSUGAR_VERSION])dnl +AC_REQUIRE([LTVERSION_VERSION])dnl +AC_REQUIRE([LTOBSOLETE_VERSION])dnl +m4_require([_LT_PROG_LTMAIN])dnl + +_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) + +dnl Parse OPTIONS +_LT_SET_OPTIONS([$0], [$1]) + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS=$ltmain + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' +AC_SUBST(LIBTOOL)dnl + +_LT_SETUP + +# Only expand once: +m4_define([LT_INIT]) +])# LT_INIT + +# Old names: +AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) +AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PROG_LIBTOOL], []) +dnl AC_DEFUN([AM_PROG_LIBTOOL], []) + + +# _LT_PREPARE_CC_BASENAME +# ----------------------- +m4_defun([_LT_PREPARE_CC_BASENAME], [ +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in @S|@*""; do + case $cc_temp in + compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;; + distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} +])# _LT_PREPARE_CC_BASENAME + + +# _LT_CC_BASENAME(CC) +# ------------------- +# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME, +# but that macro is also expanded into generated libtool script, which +# arranges for $SED and $ECHO to be set by different means. +m4_defun([_LT_CC_BASENAME], +[m4_require([_LT_PREPARE_CC_BASENAME])dnl +AC_REQUIRE([_LT_DECL_SED])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl +func_cc_basename $1 +cc_basename=$func_cc_basename_result +]) + + +# _LT_FILEUTILS_DEFAULTS +# ---------------------- +# It is okay to use these file commands and assume they have been set +# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'. +m4_defun([_LT_FILEUTILS_DEFAULTS], +[: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} +])# _LT_FILEUTILS_DEFAULTS + + +# _LT_SETUP +# --------- +m4_defun([_LT_SETUP], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl + +_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl +dnl +_LT_DECL([], [host_alias], [0], [The host system])dnl +_LT_DECL([], [host], [0])dnl +_LT_DECL([], [host_os], [0])dnl +dnl +_LT_DECL([], [build_alias], [0], [The build system])dnl +_LT_DECL([], [build], [0])dnl +_LT_DECL([], [build_os], [0])dnl +dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +dnl +AC_REQUIRE([AC_PROG_LN_S])dnl +test -z "$LN_S" && LN_S="ln -s" +_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl +dnl +AC_REQUIRE([LT_CMD_MAX_LEN])dnl +_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl +_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl +dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl +m4_require([_LT_CMD_RELOAD])dnl +m4_require([_LT_DECL_FILECMD])dnl +m4_require([_LT_CHECK_MAGIC_METHOD])dnl +m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl +m4_require([_LT_CMD_OLD_ARCHIVE])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_WITH_SYSROOT])dnl +m4_require([_LT_CMD_TRUNCATE])dnl + +_LT_CONFIG_LIBTOOL_INIT([ +# See if we are running on zsh, and set the options that allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi +]) +if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + +_LT_CHECK_OBJDIR + +m4_require([_LT_TAG_COMPILER])dnl + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a '.a' archive for static linking (except MSVC and +# ICC, which need '.lib'). +libext=a + +with_gnu_ld=$lt_cv_prog_gnu_ld + +old_CC=$CC +old_CFLAGS=$CFLAGS + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +_LT_CC_BASENAME([$compiler]) + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + _LT_PATH_MAGIC + fi + ;; +esac + +# Use C for the default configuration in the libtool script +LT_SUPPORTED_TAG([CC]) +_LT_LANG_C_CONFIG +_LT_LANG_DEFAULT_CONFIG +_LT_CONFIG_COMMANDS +])# _LT_SETUP + + +# _LT_PREPARE_SED_QUOTE_VARS +# -------------------------- +# Define a few sed substitution that help us do robust quoting. +m4_defun([_LT_PREPARE_SED_QUOTE_VARS], +[# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\([["`$\\]]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\([["`\\]]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' +]) + +# _LT_PROG_LTMAIN +# --------------- +# Note that this code is called both from 'configure', and 'config.status' +# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably, +# 'config.status' has no value for ac_aux_dir unless we are using Automake, +# so we pass a copy along to make sure it has a sensible value anyway. +m4_defun([_LT_PROG_LTMAIN], +[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl +_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir']) +ltmain=$ac_aux_dir/ltmain.sh +])# _LT_PROG_LTMAIN + + +## ------------------------------------- ## +## Accumulate code for creating libtool. ## +## ------------------------------------- ## + +# So that we can recreate a full libtool script including additional +# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS +# in macros and then make a single call at the end using the 'libtool' +# label. + + +# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS]) +# ---------------------------------------- +# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL_INIT], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_INIT], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_INIT]) + + +# _LT_CONFIG_LIBTOOL([COMMANDS]) +# ------------------------------ +# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS]) + + +# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS]) +# ----------------------------------------------------- +m4_defun([_LT_CONFIG_SAVE_COMMANDS], +[_LT_CONFIG_LIBTOOL([$1]) +_LT_CONFIG_LIBTOOL_INIT([$2]) +]) + + +# _LT_FORMAT_COMMENT([COMMENT]) +# ----------------------------- +# Add leading comment marks to the start of each line, and a trailing +# full-stop to the whole comment if one is not present already. +m4_define([_LT_FORMAT_COMMENT], +[m4_ifval([$1], [ +m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])], + [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.]) +)]) + + + +## ------------------------ ## +## FIXME: Eliminate VARNAME ## +## ------------------------ ## + + +# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?]) +# ------------------------------------------------------------------- +# CONFIGNAME is the name given to the value in the libtool script. +# VARNAME is the (base) name used in the configure script. +# VALUE may be 0, 1 or 2 for a computed quote escaped value based on +# VARNAME. Any other value will be used directly. +m4_define([_LT_DECL], +[lt_if_append_uniq([lt_decl_varnames], [$2], [, ], + [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name], + [m4_ifval([$1], [$1], [$2])]) + lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3]) + m4_ifval([$4], + [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])]) + lt_dict_add_subkey([lt_decl_dict], [$2], + [tagged?], [m4_ifval([$5], [yes], [no])])]) +]) + + +# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION]) +# -------------------------------------------------------- +m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])]) + + +# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_tag_varnames], +[_lt_decl_filter([tagged?], [yes], $@)]) + + +# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..]) +# --------------------------------------------------------- +m4_define([_lt_decl_filter], +[m4_case([$#], + [0], [m4_fatal([$0: too few arguments: $#])], + [1], [m4_fatal([$0: too few arguments: $#: $1])], + [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)], + [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)], + [lt_dict_filter([lt_decl_dict], $@)])[]dnl +]) + + +# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...]) +# -------------------------------------------------- +m4_define([lt_decl_quote_varnames], +[_lt_decl_filter([value], [1], $@)]) + + +# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_dquote_varnames], +[_lt_decl_filter([value], [2], $@)]) + + +# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_varnames_tagged], +[m4_assert([$# <= 2])dnl +_$0(m4_quote(m4_default([$1], [[, ]])), + m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]), + m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))]) +m4_define([_lt_decl_varnames_tagged], +[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])]) + + +# lt_decl_all_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_all_varnames], +[_$0(m4_quote(m4_default([$1], [[, ]])), + m4_if([$2], [], + m4_quote(lt_decl_varnames), + m4_quote(m4_shift($@))))[]dnl +]) +m4_define([_lt_decl_all_varnames], +[lt_join($@, lt_decl_varnames_tagged([$1], + lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl +]) + + +# _LT_CONFIG_STATUS_DECLARE([VARNAME]) +# ------------------------------------ +# Quote a variable value, and forward it to 'config.status' so that its +# declaration there will have the same value as in 'configure'. VARNAME +# must have a single quote delimited value for this to work. +m4_define([_LT_CONFIG_STATUS_DECLARE], +[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`']) + + +# _LT_CONFIG_STATUS_DECLARATIONS +# ------------------------------ +# We delimit libtool config variables with single quotes, so when +# we write them to config.status, we have to be sure to quote all +# embedded single quotes properly. In configure, this macro expands +# each variable declared with _LT_DECL (and _LT_TAGDECL) into: +# +# <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`' +m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], +[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), + [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAGS +# ---------------- +# Output comment and list of tags supported by the script +m4_defun([_LT_LIBTOOL_TAGS], +[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl +available_tags='_LT_TAGS'dnl +]) + + +# _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) +# ----------------------------------- +# Extract the dictionary values for VARNAME (optionally with TAG) and +# expand to a commented shell variable setting: +# +# # Some comment about what VAR is for. +# visible_name=$lt_internal_name +m4_define([_LT_LIBTOOL_DECLARE], +[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], + [description])))[]dnl +m4_pushdef([_libtool_name], + m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl +m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), + [0], [_libtool_name=[$]$1], + [1], [_libtool_name=$lt_[]$1], + [2], [_libtool_name=$lt_[]$1], + [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl +m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl +]) + + +# _LT_LIBTOOL_CONFIG_VARS +# ----------------------- +# Produce commented declarations of non-tagged libtool config variables +# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool' +# script. Tagged libtool config variables (even for the LIBTOOL CONFIG +# section) are produced by _LT_LIBTOOL_TAG_VARS. +m4_defun([_LT_LIBTOOL_CONFIG_VARS], +[m4_foreach([_lt_var], + m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAG_VARS(TAG) +# ------------------------- +m4_define([_LT_LIBTOOL_TAG_VARS], +[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])]) + + +# _LT_TAGVAR(VARNAME, [TAGNAME]) +# ------------------------------ +m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])]) + + +# _LT_CONFIG_COMMANDS +# ------------------- +# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of +# variables for single and double quote escaping we saved from calls +# to _LT_DECL, we can put quote escaped variables declarations +# into 'config.status', and then the shell code to quote escape them in +# for loops in 'config.status'. Finally, any additional code accumulated +# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded. +m4_defun([_LT_CONFIG_COMMANDS], +[AC_PROVIDE_IFELSE([LT_OUTPUT], + dnl If the libtool generation code has been placed in $CONFIG_LT, + dnl instead of duplicating it all over again into config.status, + dnl then we will have config.status run $CONFIG_LT later, so it + dnl needs to know what name is stored there: + [AC_CONFIG_COMMANDS([libtool], + [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])], + dnl If the libtool generation code is destined for config.status, + dnl expand the accumulated commands and init code now: + [AC_CONFIG_COMMANDS([libtool], + [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])]) +])#_LT_CONFIG_COMMANDS + + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT], +[ + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +_LT_CONFIG_STATUS_DECLARATIONS +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$[]1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_quote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_dquote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +_LT_OUTPUT_LIBTOOL_INIT +]) + +# _LT_GENERATED_FILE_INIT(FILE, [COMMENT]) +# ------------------------------------ +# Generate a child script FILE with all initialization necessary to +# reuse the environment learned by the parent script, and make the +# file executable. If COMMENT is supplied, it is inserted after the +# '#!' sequence but before initialization text begins. After this +# macro, additional text can be appended to FILE to form the body of +# the child script. The macro ends with non-zero status if the +# file could not be fully written (such as if the disk is full). +m4_ifdef([AS_INIT_GENERATED], +[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])], +[m4_defun([_LT_GENERATED_FILE_INIT], +[m4_require([AS_PREPARE])]dnl +[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl +[lt_write_fail=0 +cat >$1 <<_ASEOF || lt_write_fail=1 +#! $SHELL +# Generated by $as_me. +$2 +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$1 <<\_ASEOF || lt_write_fail=1 +AS_SHELL_SANITIZE +_AS_PREPARE +exec AS_MESSAGE_FD>&1 +_ASEOF +test 0 = "$lt_write_fail" && chmod +x $1[]dnl +m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT + +# LT_OUTPUT +# --------- +# This macro allows early generation of the libtool script (before +# AC_OUTPUT is called), incase it is used in configure for compilation +# tests. +AC_DEFUN([LT_OUTPUT], +[: ${CONFIG_LT=./config.lt} +AC_MSG_NOTICE([creating $CONFIG_LT]) +_LT_GENERATED_FILE_INIT(["$CONFIG_LT"], +[# Run this file to recreate a libtool stub with the current configuration.]) + +cat >>"$CONFIG_LT" <<\_LTEOF +lt_cl_silent=false +exec AS_MESSAGE_LOG_FD>>config.log +{ + echo + AS_BOX([Running $as_me.]) +} >&AS_MESSAGE_LOG_FD + +lt_cl_help="\ +'$as_me' creates a local libtool stub from the current configuration, +for use in further configure time tests before the real libtool is +generated. + +Usage: $[0] [[OPTIONS]] + + -h, --help print this help, then exit + -V, --version print version number, then exit + -q, --quiet do not print progress messages + -d, --debug don't remove temporary files + +Report bugs to <bug-libtool@gnu.org>." + +lt_cl_version="\ +m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl +m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]) +configured by $[0], generated by m4_PACKAGE_STRING. + +Copyright (C) 2011 Free Software Foundation, Inc. +This config.lt script is free software; the Free Software Foundation +gives unlimited permision to copy, distribute and modify it." + +while test 0 != $[#] +do + case $[1] in + --version | --v* | -V ) + echo "$lt_cl_version"; exit 0 ;; + --help | --h* | -h ) + echo "$lt_cl_help"; exit 0 ;; + --debug | --d* | -d ) + debug=: ;; + --quiet | --q* | --silent | --s* | -q ) + lt_cl_silent=: ;; + + -*) AC_MSG_ERROR([unrecognized option: $[1] +Try '$[0] --help' for more information.]) ;; + + *) AC_MSG_ERROR([unrecognized argument: $[1] +Try '$[0] --help' for more information.]) ;; + esac + shift +done + +if $lt_cl_silent; then + exec AS_MESSAGE_FD>/dev/null +fi +_LTEOF + +cat >>"$CONFIG_LT" <<_LTEOF +_LT_OUTPUT_LIBTOOL_COMMANDS_INIT +_LTEOF + +cat >>"$CONFIG_LT" <<\_LTEOF +AC_MSG_NOTICE([creating $ofile]) +_LT_OUTPUT_LIBTOOL_COMMANDS +AS_EXIT(0) +_LTEOF +chmod +x "$CONFIG_LT" + +# configure is writing to config.log, but config.lt does its own redirection, +# appending to config.log, which fails on DOS, as config.log is still kept +# open by configure. Here we exec the FD to /dev/null, effectively closing +# config.log, so it can be properly (re)opened and appended to by config.lt. +lt_cl_success=: +test yes = "$silent" && + lt_config_lt_args="$lt_config_lt_args --quiet" +exec AS_MESSAGE_LOG_FD>/dev/null +$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false +exec AS_MESSAGE_LOG_FD>>config.log +$lt_cl_success || AS_EXIT(1) +])# LT_OUTPUT + + +# _LT_CONFIG(TAG) +# --------------- +# If TAG is the built-in tag, create an initial libtool script with a +# default configuration from the untagged config vars. Otherwise add code +# to config.status for appending the configuration named by TAG from the +# matching tagged config vars. +m4_defun([_LT_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_CONFIG_SAVE_COMMANDS([ + m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl + m4_if(_LT_TAG, [C], [ + # See if we are running on zsh, and set the options that allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST + fi + + cfgfile=${ofile}T + trap "$RM \"$cfgfile\"; exit 1" 1 2 15 + $RM "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL +# Generated automatically by $as_me ($PACKAGE) $VERSION +# NOTE: Changes made to this file will be lost: look at ltmain.sh. + +# Provide generalized library-building support services. +# Written by Gordon Matzigkeit, 1996 + +_LT_COPYING +_LT_LIBTOOL_TAGS + +# Configured defaults for sys_lib_dlsearch_path munging. +: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"} + +# ### BEGIN LIBTOOL CONFIG +_LT_LIBTOOL_CONFIG_VARS +_LT_LIBTOOL_TAG_VARS +# ### END LIBTOOL CONFIG + +_LT_EOF + + cat <<'_LT_EOF' >> "$cfgfile" + +# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE + +_LT_PREPARE_MUNGE_PATH_LIST +_LT_PREPARE_CC_BASENAME + +# ### END FUNCTIONS SHARED WITH CONFIGURE + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + _LT_PROG_LTMAIN + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + $SED '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" +], +[cat <<_LT_EOF >> "$ofile" + +dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded +dnl in a comment (ie after a #). +# ### BEGIN LIBTOOL TAG CONFIG: $1 +_LT_LIBTOOL_TAG_VARS(_LT_TAG) +# ### END LIBTOOL TAG CONFIG: $1 +_LT_EOF +])dnl /m4_if +], +[m4_if([$1], [], [ + PACKAGE='$PACKAGE' + VERSION='$VERSION' + RM='$RM' + ofile='$ofile'], []) +])dnl /_LT_CONFIG_SAVE_COMMANDS +])# _LT_CONFIG + + +# LT_SUPPORTED_TAG(TAG) +# --------------------- +# Trace this macro to discover what tags are supported by the libtool +# --tag option, using: +# autoconf --trace 'LT_SUPPORTED_TAG:$1' +AC_DEFUN([LT_SUPPORTED_TAG], []) + + +# C support is built-in for now +m4_define([_LT_LANG_C_enabled], []) +m4_define([_LT_TAGS], []) + + +# LT_LANG(LANG) +# ------------- +# Enable libtool support for the given language if not already enabled. +AC_DEFUN([LT_LANG], +[AC_BEFORE([$0], [LT_OUTPUT])dnl +m4_case([$1], + [C], [_LT_LANG(C)], + [C++], [_LT_LANG(CXX)], + [Go], [_LT_LANG(GO)], + [Java], [_LT_LANG(GCJ)], + [Fortran 77], [_LT_LANG(F77)], + [Fortran], [_LT_LANG(FC)], + [Windows Resource], [_LT_LANG(RC)], + [m4_ifdef([_LT_LANG_]$1[_CONFIG], + [_LT_LANG($1)], + [m4_fatal([$0: unsupported language: "$1"])])])dnl +])# LT_LANG + + +# _LT_LANG(LANGNAME) +# ------------------ +m4_defun([_LT_LANG], +[m4_ifdef([_LT_LANG_]$1[_enabled], [], + [LT_SUPPORTED_TAG([$1])dnl + m4_append([_LT_TAGS], [$1 ])dnl + m4_define([_LT_LANG_]$1[_enabled], [])dnl + _LT_LANG_$1_CONFIG($1)])dnl +])# _LT_LANG + + +m4_ifndef([AC_PROG_GO], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_GO. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ +m4_defun([AC_PROG_GO], +[AC_LANG_PUSH(Go)dnl +AC_ARG_VAR([GOC], [Go compiler command])dnl +AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +AC_CHECK_TOOL(GOC, gccgo) +if test -z "$GOC"; then + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo]) + fi +fi +if test -z "$GOC"; then + AC_CHECK_PROG(GOC, gccgo, gccgo, false) +fi +])#m4_defun +])#m4_ifndef + + +# _LT_LANG_DEFAULT_CONFIG +# ----------------------- +m4_defun([_LT_LANG_DEFAULT_CONFIG], +[AC_PROVIDE_IFELSE([AC_PROG_CXX], + [LT_LANG(CXX)], + [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])]) + +AC_PROVIDE_IFELSE([AC_PROG_F77], + [LT_LANG(F77)], + [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])]) + +AC_PROVIDE_IFELSE([AC_PROG_FC], + [LT_LANG(FC)], + [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])]) + +dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal +dnl pulling things in needlessly. +AC_PROVIDE_IFELSE([AC_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([A][M_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([LT_PROG_GCJ], + [LT_LANG(GCJ)], + [m4_ifdef([AC_PROG_GCJ], + [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([A][M_PROG_GCJ], + [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([LT_PROG_GCJ], + [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])]) + +AC_PROVIDE_IFELSE([AC_PROG_GO], + [LT_LANG(GO)], + [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])]) + +AC_PROVIDE_IFELSE([LT_PROG_RC], + [LT_LANG(RC)], + [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])]) +])# _LT_LANG_DEFAULT_CONFIG + +# Obsolete macros: +AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)]) +AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)]) +AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)]) +AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)]) +AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_CXX], []) +dnl AC_DEFUN([AC_LIBTOOL_F77], []) +dnl AC_DEFUN([AC_LIBTOOL_FC], []) +dnl AC_DEFUN([AC_LIBTOOL_GCJ], []) +dnl AC_DEFUN([AC_LIBTOOL_RC], []) + + +# _LT_TAG_COMPILER +# ---------------- +m4_defun([_LT_TAG_COMPILER], +[AC_REQUIRE([AC_PROG_CC])dnl + +_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl +_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl +_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl +_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC +])# _LT_TAG_COMPILER + + +# _LT_COMPILER_BOILERPLATE +# ------------------------ +# Check for compiler boilerplate output or warnings with +# the simple compiler test code. +m4_defun([_LT_COMPILER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* +])# _LT_COMPILER_BOILERPLATE + + +# _LT_LINKER_BOILERPLATE +# ---------------------- +# Check for linker boilerplate output or warnings with +# the simple link test code. +m4_defun([_LT_LINKER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* +])# _LT_LINKER_BOILERPLATE + +# _LT_REQUIRED_DARWIN_CHECKS +# ------------------------- +m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[ + case $host_os in + rhapsody* | darwin*) + AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:]) + AC_CHECK_TOOL([NMEDIT], [nmedit], [:]) + AC_CHECK_TOOL([LIPO], [lipo], [:]) + AC_CHECK_TOOL([OTOOL], [otool], [:]) + AC_CHECK_TOOL([OTOOL64], [otool64], [:]) + _LT_DECL([], [DSYMUTIL], [1], + [Tool to manipulate archived DWARF debug symbol files on Mac OS X]) + _LT_DECL([], [NMEDIT], [1], + [Tool to change global to local symbols on Mac OS X]) + _LT_DECL([], [LIPO], [1], + [Tool to manipulate fat objects and archives on Mac OS X]) + _LT_DECL([], [OTOOL], [1], + [ldd/readelf like tool for Mach-O binaries on Mac OS X]) + _LT_DECL([], [OTOOL64], [1], + [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4]) + + AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod], + [lt_cv_apple_cc_single_mod=no + if test -z "$LT_MULTI_MODULE"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test 0 = "$_lt_result"; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi]) + + AC_CACHE_CHECK([for -exported_symbols_list linker flag], + [lt_cv_ld_exported_symbols_list], + [lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [lt_cv_ld_exported_symbols_list=yes], + [lt_cv_ld_exported_symbols_list=no]) + LDFLAGS=$save_LDFLAGS + ]) + + AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load], + [lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD + echo "$AR $AR_FLAGS libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD + $AR $AR_FLAGS libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD + echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD + $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + ]) + case $host_os in + rhapsody* | darwin1.[[012]]) + _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + darwin*) + case $MACOSX_DEPLOYMENT_TARGET,$host in + 10.[[012]],*|,*powerpc*-darwin[[5-8]]*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + *) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test yes = "$lt_cv_apple_cc_single_mod"; then + _lt_dar_single_mod='$single_module' + fi + if test yes = "$lt_cv_ld_exported_symbols_list"; then + _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' + fi + if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac +]) + + +# _LT_DARWIN_LINKER_FEATURES([TAG]) +# --------------------------------- +# Checks for linker and compiler features on darwin +m4_defun([_LT_DARWIN_LINKER_FEATURES], +[ + m4_require([_LT_REQUIRED_DARWIN_CHECKS]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_automatic, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + if test yes = "$lt_cv_ld_force_load"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes], + [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes]) + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='' + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="$SED 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + _LT_TAGVAR(module_expsym_cmds, $1)="$SED -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + m4_if([$1], [CXX], +[ if test yes != "$lt_cv_apple_cc_single_mod"; then + _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="$SED 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil" + fi +],[]) + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi +]) + +# _LT_SYS_MODULE_PATH_AIX([TAGNAME]) +# ---------------------------------- +# Links a minimal program and checks the executable +# for the system default hardcoded library path. In most cases, +# this is /usr/lib:/lib, but when the MPI compilers are used +# the location of the communication and MPI libs are included too. +# If we don't find anything, use the default library path according +# to the aix ld manual. +# Store the results from the different compilers for each TAGNAME. +# Allow to override them for all tags through lt_cv_aix_libpath. +m4_defun([_LT_SYS_MODULE_PATH_AIX], +[m4_require([_LT_DECL_SED])dnl +if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM],[ + lt_aix_libpath_sed='[ + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }]' + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi],[]) + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib + fi + ]) + aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1]) +fi +])# _LT_SYS_MODULE_PATH_AIX + + +# _LT_SHELL_INIT(ARG) +# ------------------- +m4_define([_LT_SHELL_INIT], +[m4_divert_text([M4SH-INIT], [$1 +])])# _LT_SHELL_INIT + + + +# _LT_PROG_ECHO_BACKSLASH +# ----------------------- +# Find how we can fake an echo command that does not interpret backslash. +# In particular, with Autoconf 2.60 or later we add some code to the start +# of the generated configure script that will find a shell with a builtin +# printf (that we can use as an echo command). +m4_defun([_LT_PROG_ECHO_BACKSLASH], +[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +AC_MSG_CHECKING([how to print strings]) +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$[]1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +case $ECHO in + printf*) AC_MSG_RESULT([printf]) ;; + print*) AC_MSG_RESULT([print -r]) ;; + *) AC_MSG_RESULT([cat]) ;; +esac + +m4_ifdef([_AS_DETECT_SUGGESTED], +[_AS_DETECT_SUGGESTED([ + test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test "X`printf %s $ECHO`" = "X$ECHO" \ + || test "X`print -r -- $ECHO`" = "X$ECHO" )])]) + +_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts]) +_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes]) +])# _LT_PROG_ECHO_BACKSLASH + + +# _LT_WITH_SYSROOT +# ---------------- +AC_DEFUN([_LT_WITH_SYSROOT], +[m4_require([_LT_DECL_SED])dnl +AC_MSG_CHECKING([for sysroot]) +AC_ARG_WITH([sysroot], +[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@], + [Search for dependent libraries within DIR (or the compiler's sysroot + if not specified).])], +[], [with_sysroot=no]) + +dnl lt_sysroot will always be passed unquoted. We quote it here +dnl in case the user passed a directory name. +lt_sysroot= +case $with_sysroot in #( + yes) + if test yes = "$GCC"; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | $SED -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + AC_MSG_RESULT([$with_sysroot]) + AC_MSG_ERROR([The sysroot must be an absolute path.]) + ;; +esac + + AC_MSG_RESULT([${lt_sysroot:-no}]) +_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl +[dependent libraries, and where our libraries should be installed.])]) + +# _LT_ENABLE_LOCK +# --------------- +m4_defun([_LT_ENABLE_LOCK], +[AC_ARG_ENABLE([libtool-lock], + [AS_HELP_STRING([--disable-libtool-lock], + [avoid locking (might break parallel builds)])]) +test no = "$enable_libtool_lock" || enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out what ABI is being produced by ac_compile, and set mode + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `$FILECMD conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE=32 + ;; + *ELF-64*) + HPUX_IA64_MODE=64 + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + if test yes = "$lt_cv_prog_gnu_ld"; then + case `$FILECMD conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `$FILECMD conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +mips64*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + emul=elf + case `$FILECMD conftest.$ac_objext` in + *32-bit*) + emul="${emul}32" + ;; + *64-bit*) + emul="${emul}64" + ;; + esac + case `$FILECMD conftest.$ac_objext` in + *MSB*) + emul="${emul}btsmip" + ;; + *LSB*) + emul="${emul}ltsmip" + ;; + esac + case `$FILECMD conftest.$ac_objext` in + *N32*) + emul="${emul}n32" + ;; + esac + LD="${LD-ld} -m $emul" + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. Note that the listed cases only cover the + # situations where additional linker options are needed (such as when + # doing 32-bit compilation for a host where ld defaults to 64-bit, or + # vice versa); the common cases where no linker options are needed do + # not appear in the list. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `$FILECMD conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `$FILECMD conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -belf" + AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf, + [AC_LANG_PUSH(C) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no]) + AC_LANG_POP]) + if test yes != "$lt_cv_cc_needs_belf"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS=$SAVE_CFLAGS + fi + ;; +*-*solaris*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `$FILECMD conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*|x86_64-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD=${LD-ld}_sol2 + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks=$enable_libtool_lock +])# _LT_ENABLE_LOCK + + +# _LT_PROG_AR +# ----------- +m4_defun([_LT_PROG_AR], +[AC_CHECK_TOOLS(AR, [ar], false) +: ${AR=ar} +_LT_DECL([], [AR], [1], [The archiver]) + +# Use ARFLAGS variable as AR's operation code to sync the variable naming with +# Automake. If both AR_FLAGS and ARFLAGS are specified, AR_FLAGS should have +# higher priority because thats what people were doing historically (setting +# ARFLAGS for automake and AR_FLAGS for libtool). FIXME: Make the AR_FLAGS +# variable obsoleted/removed. + +test ${AR_FLAGS+y} || AR_FLAGS=${ARFLAGS-cr} +lt_ar_flags=$AR_FLAGS +_LT_DECL([], [lt_ar_flags], [0], [Flags to create an archive (by configure)]) + +# Make AR_FLAGS overridable by 'make ARFLAGS='. Don't try to run-time override +# by AR_FLAGS because that was never working and AR_FLAGS is about to die. +_LT_DECL([], [AR_FLAGS], [\@S|@{ARFLAGS-"\@S|@lt_ar_flags"}], + [Flags to create an archive]) + +AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file], + [lt_cv_ar_at_file=no + AC_COMPILE_IFELSE([AC_LANG_PROGRAM], + [echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([lt_ar_try]) + if test 0 -eq "$ac_status"; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + AC_TRY_EVAL([lt_ar_try]) + if test 0 -ne "$ac_status"; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + ]) + ]) + +if test no = "$lt_cv_ar_at_file"; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi +_LT_DECL([], [archiver_list_spec], [1], + [How to feed a file listing to the archiver]) +])# _LT_PROG_AR + + +# _LT_CMD_OLD_ARCHIVE +# ------------------- +m4_defun([_LT_CMD_OLD_ARCHIVE], +[_LT_PROG_AR + +AC_CHECK_TOOL(STRIP, strip, :) +test -z "$STRIP" && STRIP=: +_LT_DECL([], [STRIP], [1], [A symbol stripping program]) + +AC_CHECK_TOOL(RANLIB, ranlib, :) +test -z "$RANLIB" && RANLIB=: +_LT_DECL([], [RANLIB], [1], + [Commands used to install an old-style archive]) + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + bitrig* | openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac +_LT_DECL([], [old_postinstall_cmds], [2]) +_LT_DECL([], [old_postuninstall_cmds], [2]) +_LT_TAGDECL([], [old_archive_cmds], [2], + [Commands used to build an old-style archive]) +_LT_DECL([], [lock_old_archive_extraction], [0], + [Whether to use a lock for old archive extraction]) +])# _LT_CMD_OLD_ARCHIVE + + +# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------------------- +# Check whether the given compiler option works +AC_DEFUN([_LT_COMPILER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4]) + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + fi + $RM conftest* +]) + +if test yes = "[$]$2"; then + m4_if([$5], , :, [$5]) +else + m4_if([$6], , :, [$6]) +fi +])# _LT_COMPILER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) + + +# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------- +# Check whether the given linker option works +AC_DEFUN([_LT_LINKER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS $3" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&AS_MESSAGE_LOG_FD + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + else + $2=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS +]) + +if test yes = "[$]$2"; then + m4_if([$4], , :, [$4]) +else + m4_if([$5], , :, [$5]) +fi +])# _LT_LINKER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) + + +# LT_CMD_MAX_LEN +#--------------- +AC_DEFUN([LT_CMD_MAX_LEN], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +# find the maximum length of command line arguments +AC_MSG_CHECKING([the maximum length of command line arguments]) +AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl + i=0 + teststring=ABCD + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + bitrig* | darwin* | dragonfly* | freebsd* | midnightbsd* | netbsd* | openbsd*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | $SED 's/.*[[ ]]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test X`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test 17 != "$i" # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac +]) +if test -n "$lt_cv_sys_max_cmd_len"; then + AC_MSG_RESULT($lt_cv_sys_max_cmd_len) +else + AC_MSG_RESULT(none) +fi +max_cmd_len=$lt_cv_sys_max_cmd_len +_LT_DECL([], [max_cmd_len], [0], + [What is the maximum length of a command?]) +])# LT_CMD_MAX_LEN + +# Old name: +AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) + + +# _LT_HEADER_DLFCN +# ---------------- +m4_defun([_LT_HEADER_DLFCN], +[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl +])# _LT_HEADER_DLFCN + + +# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, +# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) +# ---------------------------------------------------------------- +m4_defun([_LT_TRY_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes = "$cross_compiling"; then : + [$4] +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +[#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include <dlfcn.h> +#endif + +#include <stdio.h> + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +}] +_LT_EOF + if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) $1 ;; + x$lt_dlneed_uscore) $2 ;; + x$lt_dlunknown|x*) $3 ;; + esac + else : + # compilation failed + $3 + fi +fi +rm -fr conftest* +])# _LT_TRY_DLOPEN_SELF + + +# LT_SYS_DLOPEN_SELF +# ------------------ +AC_DEFUN([LT_SYS_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes != "$enable_dlopen"; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen=load_add_on + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen=LoadLibrary + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[ + lt_cv_dlopen=dyld + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ]) + ;; + + tpf*) + # Don't try to run any link tests for TPF. We know it's impossible + # because TPF is a cross-compiler, and we know how we open DSOs. + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + lt_cv_dlopen_self=no + ;; + + *) + AC_CHECK_FUNC([shl_load], + [lt_cv_dlopen=shl_load], + [AC_CHECK_LIB([dld], [shl_load], + [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld], + [AC_CHECK_FUNC([dlopen], + [lt_cv_dlopen=dlopen], + [AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl], + [AC_CHECK_LIB([svld], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld], + [AC_CHECK_LIB([dld], [dld_link], + [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld]) + ]) + ]) + ]) + ]) + ]) + ;; + esac + + if test no = "$lt_cv_dlopen"; then + enable_dlopen=no + else + enable_dlopen=yes + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS=$CPPFLAGS + test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS=$LDFLAGS + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS=$LIBS + LIBS="$lt_cv_dlopen_libs $LIBS" + + AC_CACHE_CHECK([whether a program can dlopen itself], + lt_cv_dlopen_self, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, + lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) + ]) + + if test yes = "$lt_cv_dlopen_self"; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + AC_CACHE_CHECK([whether a statically linked program can dlopen itself], + lt_cv_dlopen_self_static, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, + lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) + ]) + fi + + CPPFLAGS=$save_CPPFLAGS + LDFLAGS=$save_LDFLAGS + LIBS=$save_LIBS + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi +_LT_DECL([dlopen_support], [enable_dlopen], [0], + [Whether dlopen is supported]) +_LT_DECL([dlopen_self], [enable_dlopen_self], [0], + [Whether dlopen of programs is supported]) +_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], + [Whether dlopen of statically linked programs is supported]) +])# LT_SYS_DLOPEN_SELF + +# Old name: +AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) + + +# _LT_COMPILER_C_O([TAGNAME]) +# --------------------------- +# Check to see if options -c and -o are simultaneously supported by compiler. +# This macro does not hard code the compiler like AC_PROG_CC_C_O. +m4_defun([_LT_COMPILER_C_O], +[m4_require([_LT_DECL_SED])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + fi + fi + chmod u+w . 2>&AS_MESSAGE_LOG_FD + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* +]) +_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], + [Does compiler simultaneously support -c and -o options?]) +])# _LT_COMPILER_C_O + + +# _LT_COMPILER_FILE_LOCKS([TAGNAME]) +# ---------------------------------- +# Check to see if we can do hard links to lock some files if needed +m4_defun([_LT_COMPILER_FILE_LOCKS], +[m4_require([_LT_ENABLE_LOCK])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_COMPILER_C_O([$1]) + +hard_links=nottested +if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then + # do not overwrite the value of need_locks provided by the user + AC_MSG_CHECKING([if we can lock with hard links]) + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + AC_MSG_RESULT([$hard_links]) + if test no = "$hard_links"; then + AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe]) + need_locks=warn + fi +else + need_locks=no +fi +_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) +])# _LT_COMPILER_FILE_LOCKS + + +# _LT_CHECK_OBJDIR +# ---------------- +m4_defun([_LT_CHECK_OBJDIR], +[AC_CACHE_CHECK([for objdir], [lt_cv_objdir], +[rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null]) +objdir=$lt_cv_objdir +_LT_DECL([], [objdir], [0], + [The name of the directory that contains temporary libtool files])dnl +m4_pattern_allow([LT_OBJDIR])dnl +AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/", + [Define to the sub-directory where libtool stores uninstalled libraries.]) +])# _LT_CHECK_OBJDIR + + +# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) +# -------------------------------------- +# Check hardcoding attributes. +m4_defun([_LT_LINKER_HARDCODE_LIBPATH], +[AC_MSG_CHECKING([how to hardcode library paths into programs]) +_LT_TAGVAR(hardcode_action, $1)= +if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || + test -n "$_LT_TAGVAR(runpath_var, $1)" || + test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then + + # We can hardcode non-existent directories. + if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && + test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then + # Linking always hardcodes the temporary library directory. + _LT_TAGVAR(hardcode_action, $1)=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + _LT_TAGVAR(hardcode_action, $1)=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + _LT_TAGVAR(hardcode_action, $1)=unsupported +fi +AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) + +if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || + test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi +_LT_TAGDECL([], [hardcode_action], [0], + [How to hardcode a shared library path into an executable]) +])# _LT_LINKER_HARDCODE_LIBPATH + + +# _LT_CMD_STRIPLIB +# ---------------- +m4_defun([_LT_CMD_STRIPLIB], +[m4_require([_LT_DECL_EGREP]) +striplib= +old_striplib= +AC_MSG_CHECKING([whether stripping libraries is possible]) +if test -z "$STRIP"; then + AC_MSG_RESULT([no]) +else + if $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + old_striplib="$STRIP --strip-debug" + striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) + else + case $host_os in + darwin*) + # FIXME - insert some real tests, host_os isn't really good enough + striplib="$STRIP -x" + old_striplib="$STRIP -S" + AC_MSG_RESULT([yes]) + ;; + freebsd*) + if $STRIP -V 2>&1 | $GREP "elftoolchain" >/dev/null; then + old_striplib="$STRIP --strip-debug" + striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac + fi +fi +_LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) +_LT_DECL([], [striplib], [1]) +])# _LT_CMD_STRIPLIB + + +# _LT_PREPARE_MUNGE_PATH_LIST +# --------------------------- +# Make sure func_munge_path_list() is defined correctly. +m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], +[[# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x@S|@2 in + x) + ;; + *:) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\" + ;; + x:*) + eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\" + ;; + *) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + esac +} +]])# _LT_PREPARE_PATH_LIST + + +# _LT_SYS_DYNAMIC_LINKER([TAG]) +# ----------------------------- +# PORTME Fill in your ld.so characteristics +m4_defun([_LT_SYS_DYNAMIC_LINKER], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_OBJDUMP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl +AC_MSG_CHECKING([dynamic linker characteristics]) +m4_if([$1], + [], [ +if test yes = "$GCC"; then + case $host_os in + darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; + *) lt_awk_arg='/^libraries:/' ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;; + *) lt_sed_strip_eq='s|=/|/|g' ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary... + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + # ...but if some path component already ends with the multilib dir we assume + # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). + case "$lt_multi_os_dir; $lt_search_path_spec " in + "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*) + lt_multi_os_dir= + ;; + esac + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir" + elif test -n "$lt_multi_os_dir"; then + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS = " "; FS = "/|\n";} { + lt_foo = ""; + lt_count = 0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo = "/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[[lt_foo]]++; } + if (lt_freq[[lt_foo]] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi]) +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=.so +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +AC_ARG_VAR([LT_SYS_LIBRARY_PATH], +[User-defined run-time library search path.]) + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='$libname$release$shared_ext$major' + ;; + +aix[[4-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test ia64 = "$host_cpu"; then + # AIX 5 supports IA64 + library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[[01]] | aix4.[[01]].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib<name>.so + # instead of lib<name>.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a[(]lib.so.V[)]' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[[45]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | $SED -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | $SED -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl* | *,icl*) + # Native MSVC or ICC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC and ICC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"]) + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly* | midnightbsd*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[[23]].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[[01]]* | freebsdelf3.[[01]]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \ + freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[[3-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], + [lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ + LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], + [lt_cv_shlibpath_overrides_runpath=yes])]) + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + ]) + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsdelf*-gnu) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='NetBSD ld.elf_so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +AC_MSG_RESULT([$dynamic_linker]) +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + +_LT_DECL([], [variables_saved_for_relink], [1], + [Variables whose values should be saved in libtool wrapper scripts and + restored at link time]) +_LT_DECL([], [need_lib_prefix], [0], + [Do we need the "lib" prefix for modules?]) +_LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) +_LT_DECL([], [version_type], [0], [Library versioning type]) +_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) +_LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) +_LT_DECL([], [shlibpath_overrides_runpath], [0], + [Is shlibpath searched before the hard-coded library search path?]) +_LT_DECL([], [libname_spec], [1], [Format of library name prefix]) +_LT_DECL([], [library_names_spec], [1], + [[List of archive names. First name is the real one, the rest are links. + The last name is the one that the linker finds with -lNAME]]) +_LT_DECL([], [soname_spec], [1], + [[The coded name of the library, if different from the real name]]) +_LT_DECL([], [install_override_mode], [1], + [Permission mode override for installation of shared libraries]) +_LT_DECL([], [postinstall_cmds], [2], + [Command to use after installation of a shared archive]) +_LT_DECL([], [postuninstall_cmds], [2], + [Command to use after uninstallation of a shared archive]) +_LT_DECL([], [finish_cmds], [2], + [Commands used to finish a libtool library installation in a directory]) +_LT_DECL([], [finish_eval], [1], + [[As "finish_cmds", except a single script fragment to be evaled but + not shown]]) +_LT_DECL([], [hardcode_into_libs], [0], + [Whether we should hardcode library paths into libraries]) +_LT_DECL([], [sys_lib_search_path_spec], [2], + [Compile-time system search path for libraries]) +_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2], + [Detected run-time system search path for libraries]) +_LT_DECL([], [configure_time_lt_sys_library_path], [2], + [Explicit LT_SYS_LIBRARY_PATH set during ./configure time]) +])# _LT_SYS_DYNAMIC_LINKER + + +# _LT_PATH_TOOL_PREFIX(TOOL) +# -------------------------- +# find a file program that can recognize shared library +AC_DEFUN([_LT_PATH_TOOL_PREFIX], +[m4_require([_LT_DECL_EGREP])dnl +AC_MSG_CHECKING([for $1]) +AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, +[case $MAGIC_CMD in +[[\\/*] | ?:[\\/]*]) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR +dnl $ac_dummy forces splitting on constant user-supplied paths. +dnl POSIX.2 word splitting is done only on the output of word expansions, +dnl not every word. This closes a longstanding sh security hole. + ac_dummy="m4_if([$2], , $PATH, [$2])" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$1"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"$1" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac]) +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + AC_MSG_RESULT($MAGIC_CMD) +else + AC_MSG_RESULT(no) +fi +_LT_DECL([], [MAGIC_CMD], [0], + [Used to examine libraries when file_magic_cmd begins with "file"])dnl +])# _LT_PATH_TOOL_PREFIX + +# Old name: +AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) + + +# _LT_PATH_MAGIC +# -------------- +# find a file program that can recognize a shared library +m4_defun([_LT_PATH_MAGIC], +[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) + else + MAGIC_CMD=: + fi +fi +])# _LT_PATH_MAGIC + + +# LT_PATH_LD +# ---------- +# find the pathname to the GNU or non-GNU linker +AC_DEFUN([LT_PATH_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PROG_ECHO_BACKSLASH])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([--with-gnu-ld], + [assume the C compiler uses GNU ld @<:@default=no@:>@])], + [test no = "$withval" || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return, which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD=$ac_prog + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test yes = "$with_gnu_ld"; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(lt_cv_path_LD, +[if test -z "$LD"; then + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD=$ac_dir/$ac_prog + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + test no != "$with_gnu_ld" && break + ;; + *) + test yes != "$with_gnu_ld" && break + ;; + esac + fi + done + IFS=$lt_save_ifs +else + lt_cv_path_LD=$LD # Let the user override the test with a path. +fi]) +LD=$lt_cv_path_LD +if test -n "$LD"; then + AC_MSG_RESULT($LD) +else + AC_MSG_RESULT(no) +fi +test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH]) +_LT_PATH_LD_GNU +AC_SUBST([LD]) + +_LT_TAGDECL([], [LD], [1], [The linker used to build libraries]) +])# LT_PATH_LD + +# Old names: +AU_ALIAS([AM_PROG_LD], [LT_PATH_LD]) +AU_ALIAS([AC_PROG_LD], [LT_PATH_LD]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_LD], []) +dnl AC_DEFUN([AC_PROG_LD], []) + + +# _LT_PATH_LD_GNU +#- -------------- +m4_defun([_LT_PATH_LD_GNU], +[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld, +[# I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 </dev/null` in +*GNU* | *'with BFD'*) + lt_cv_prog_gnu_ld=yes + ;; +*) + lt_cv_prog_gnu_ld=no + ;; +esac]) +with_gnu_ld=$lt_cv_prog_gnu_ld +])# _LT_PATH_LD_GNU + + +# _LT_CMD_RELOAD +# -------------- +# find reload flag for linker +# -- PORTME Some linkers may need a different reload flag. +m4_defun([_LT_CMD_RELOAD], +[AC_CACHE_CHECK([for $LD option to reload object files], + lt_cv_ld_reload_flag, + [lt_cv_ld_reload_flag='-r']) +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + if test yes != "$GCC"; then + reload_cmds=false + fi + ;; + darwin*) + if test yes = "$GCC"; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac +_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl +_LT_TAGDECL([], [reload_cmds], [2])dnl +])# _LT_CMD_RELOAD + + +# _LT_PATH_DD +# ----------- +# find a working dd +m4_defun([_LT_PATH_DD], +[AC_CACHE_CHECK([for a working dd], [ac_cv_path_lt_DD], +[printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +: ${lt_DD:=$DD} +AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd], +[if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: +fi]) +rm -f conftest.i conftest2.i conftest.out]) +])# _LT_PATH_DD + + +# _LT_CMD_TRUNCATE +# ---------------- +# find command to truncate a binary pipe +m4_defun([_LT_CMD_TRUNCATE], +[m4_require([_LT_PATH_DD]) +AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin], +[printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +lt_cv_truncate_bin= +if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" +fi +rm -f conftest.i conftest2.i conftest.out +test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"]) +_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1], + [Command to truncate a binary pipe]) +])# _LT_CMD_TRUNCATE + + +# _LT_CHECK_MAGIC_METHOD +# ---------------------- +# how to check for library dependencies +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_MAGIC_METHOD], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +AC_CACHE_CHECK([how to recognize dependent libraries], +lt_cv_deplibs_check_method, +[lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# 'unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# that responds to the $file_magic_cmd with a given extended regex. +# If you have 'file' or equivalent on your system and you're not sure +# whether 'pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[[4-9]]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[[45]]*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='$FILECMD -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + if ( file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly* | midnightbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=$FILECMD + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=$FILECMD + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[[3-9]]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=$FILECMD + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd* | bitrig*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +os2*) + lt_cv_deplibs_check_method=pass_all + ;; +esac +]) + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + +_LT_DECL([], [deplibs_check_method], [1], + [Method to check whether dependent libraries are shared objects]) +_LT_DECL([], [file_magic_cmd], [1], + [Command to use when deplibs_check_method = "file_magic"]) +_LT_DECL([], [file_magic_glob], [1], + [How to find potential files when deplibs_check_method = "file_magic"]) +_LT_DECL([], [want_nocaseglob], [1], + [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) +])# _LT_CHECK_MAGIC_METHOD + + +# LT_PATH_NM +# ---------- +# find the pathname to a BSD- or MS-compatible name lister +AC_DEFUN([LT_PATH_NM], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, +[if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM=$NM +else + lt_nm_to_check=${ac_tool_prefix}nm + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/$lt_tmp_nm + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the 'sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty + case $build_os in + mingw*) lt_bad_file=conftest.nm/nofile ;; + *) lt_bad_file=/dev/null ;; + esac + case `"$tmp_nm" -B $lt_bad_file 2>&1 | $SED '1q'` in + *$lt_bad_file* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break 2 + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | $SED '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break 2 + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS=$lt_save_ifs + done + : ${lt_cv_path_NM=no} +fi]) +if test no != "$lt_cv_path_NM"; then + NM=$lt_cv_path_NM +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) + case `$DUMPBIN -symbols -headers /dev/null 2>&1 | $SED '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols -headers" + ;; + *) + DUMPBIN=: + ;; + esac + fi + AC_SUBST([DUMPBIN]) + if test : != "$DUMPBIN"; then + NM=$DUMPBIN + fi +fi +test -z "$NM" && NM=nm +AC_SUBST([NM]) +_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl + +AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], + [lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) + cat conftest.out >&AS_MESSAGE_LOG_FD + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest*]) +])# LT_PATH_NM + +# Old names: +AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) +AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_NM], []) +dnl AC_DEFUN([AC_PROG_NM], []) + +# _LT_CHECK_SHAREDLIB_FROM_LINKLIB +# -------------------------------- +# how to determine the name of the shared library +# associated with a specific link library. +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +m4_require([_LT_DECL_DLLTOOL]) +AC_CACHE_CHECK([how to associate runtime and link libraries], +lt_cv_sharedlib_from_linklib_cmd, +[lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh; + # decide which one to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd=$ECHO + ;; +esac +]) +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + +_LT_DECL([], [sharedlib_from_linklib_cmd], [1], + [Command to associate shared and link libraries]) +])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB + + +# _LT_PATH_MANIFEST_TOOL +# ---------------------- +# locate the manifest tool +m4_defun([_LT_PATH_MANIFEST_TOOL], +[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], + [lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&AS_MESSAGE_LOG_FD + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest*]) +if test yes != "$lt_cv_path_mainfest_tool"; then + MANIFEST_TOOL=: +fi +_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl +])# _LT_PATH_MANIFEST_TOOL + + +# _LT_DLL_DEF_P([FILE]) +# --------------------- +# True iff FILE is a Windows DLL '.def' file. +# Keep in sync with func_dll_def_p in the libtool script +AC_DEFUN([_LT_DLL_DEF_P], +[dnl + test DEF = "`$SED -n dnl + -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace + -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments + -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl + -e q dnl Only consider the first "real" line + $1`" dnl +])# _LT_DLL_DEF_P + + +# LT_LIB_M +# -------- +# check for math library +AC_DEFUN([LT_LIB_M], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +LIBM= +case $host in +*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) + # These system don't have libm, or don't need it + ;; +*-ncr-sysv4.3*) + AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) + AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") + ;; +*) + AC_CHECK_LIB(m, cos, LIBM=-lm) + ;; +esac +AC_SUBST([LIBM]) +])# LT_LIB_M + +# Old name: +AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_CHECK_LIBM], []) + + +# _LT_COMPILER_NO_RTTI([TAGNAME]) +# ------------------------------- +m4_defun([_LT_COMPILER_NO_RTTI], +[m4_require([_LT_TAG_COMPILER])dnl + +_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + +if test yes = "$GCC"; then + case $cc_basename in + nvcc*) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; + *) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; + esac + + _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], + lt_cv_prog_compiler_rtti_exceptions, + [-fno-rtti -fno-exceptions], [], + [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) +fi +_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], + [Compiler flag to turn off builtin functions]) +])# _LT_COMPILER_NO_RTTI + + +# _LT_CMD_GLOBAL_SYMBOLS +# ---------------------- +m4_defun([_LT_CMD_GLOBAL_SYMBOLS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([LT_PATH_NM])dnl +AC_REQUIRE([LT_PATH_LD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_TAG_COMPILER])dnl + +# Check for command to grab the raw symbol name followed by C symbol from nm. +AC_MSG_CHECKING([command to parse $NM output from $compiler object]) +AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], +[ +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[[BCDEGRST]]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[[BCDT]]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[[ABCDGISTW]]' + ;; +hpux*) + if test ia64 = "$host_cpu"; then + symcode='[[ABCDEGRST]]' + fi + ;; +irix* | nonstopux*) + symcode='[[BCDEGRST]]' + ;; +osf*) + symcode='[[BCDEGQRST]]' + ;; +solaris*) + symcode='[[BDRT]]' + ;; +sco3.2v5*) + symcode='[[DT]]' + ;; +sysv4.2uw2*) + symcode='[[DT]]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[[ABDT]]' + ;; +sysv4) + symcode='[[DFNSTU]]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[[ABCDGIRSTW]]' ;; +esac + +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Gets list of data symbols to import. + lt_cv_sys_global_symbol_to_import="$SED -n -e 's/^I .* \(.*\)$/\1/p'" + # Adjust the below global symbol transforms to fixup imported variables. + lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" + lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" + lt_c_name_lib_hook="\ + -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ + -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" +else + # Disable hooks by default. + lt_cv_sys_global_symbol_to_import= + lt_cdecl_hook= + lt_c_name_hook= + lt_c_name_lib_hook= +fi + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="$SED -n"\ +$lt_cdecl_hook\ +" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="$SED -n"\ +$lt_c_name_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" + +# Transform an extracted symbol line into symbol name with lib prefix and +# symbol address. +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="$SED -n"\ +$lt_c_name_lib_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function, + # D for any global variable and I for any imported variable. + # Also find C++ and __fastcall symbols from MSVC++ or ICC, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK ['"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ +" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ +" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ +" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ +" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx]" + else + lt_cv_sys_global_symbol_pipe="$SED -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | $SED '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if AC_TRY_EVAL(ac_compile); then + # Now try to grab the symbols. + nlist=conftest.nm + $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&AS_MESSAGE_LOG_FD + if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&AS_MESSAGE_LOG_FD && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT@&t@_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT@&t@_DLSYM_CONST +#else +# define LT@&t@_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT@&t@_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[[]] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS=conftstm.$ac_objext + CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" + if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD + fi + else + echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test yes = "$pipe_works"; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done +]) +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + AC_MSG_RESULT(failed) +else + AC_MSG_RESULT(ok) +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + +_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], + [Take the output of nm and produce a listing of raw symbols and C names]) +_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], + [Transform the output of nm in a proper C declaration]) +_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], + [Transform the output of nm into a list of symbols to manually relocate]) +_LT_DECL([global_symbol_to_c_name_address], + [lt_cv_sys_global_symbol_to_c_name_address], [1], + [Transform the output of nm in a C name address pair]) +_LT_DECL([global_symbol_to_c_name_address_lib_prefix], + [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], + [Transform the output of nm in a C name address pair when lib prefix is needed]) +_LT_DECL([nm_interface], [lt_cv_nm_interface], [1], + [The name lister interface]) +_LT_DECL([], [nm_file_list_spec], [1], + [Specify filename containing input files for $NM]) +]) # _LT_CMD_GLOBAL_SYMBOLS + + +# _LT_COMPILER_PIC([TAGNAME]) +# --------------------------- +m4_defun([_LT_COMPILER_PIC], +[m4_require([_LT_TAG_COMPILER])dnl +_LT_TAGVAR(lt_prog_compiler_wl, $1)= +_LT_TAGVAR(lt_prog_compiler_pic, $1)= +_LT_TAGVAR(lt_prog_compiler_static, $1)= + +m4_if([$1], [CXX], [ + # C++ specific cases for pic, static, wl, etc. + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + else + case $host_os in + aix[[4-9]]*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + dgux*) + case $cc_basename in + ec++*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly* | midnightbsd*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + fi + ;; + aCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64, which still supported -KPIC. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | $SED 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd* | netbsdelf*-gnu) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + cxx*) + # Digital/Compaq C++ + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + lcc*) + # Lucid + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +], +[ + if test yes = "$GCC"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' + if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + case $cc_basename in + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + hpux9* | hpux10* | hpux11*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC (with -KPIC) is the default. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64, which still supported -KPIC. + ecc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # flang / f18. f95 an alias for gfortran or flang on Debian + flang* | f18* | f95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' + _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' + ;; + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + ccc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All Alpha code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | $SED 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='' + ;; + *Sun\ F* | *Sun*Fortran*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + ;; + *Intel*\ [[CF]]*Compiler*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + *Portland\ Group*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All OSF/1 code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + rdos*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + solaris*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; + *) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; + esac + ;; + + sunos4*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + unicos*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + + uts4*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +]) +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" + ;; +esac + +AC_CACHE_CHECK([for $compiler option to produce PIC], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) +_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], + [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], + [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], + [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in + "" | " "*) ;; + *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; + esac], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no]) +fi +_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1], + [Additional compiler flags for building library objects]) + +_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1], + [How to pass a linker flag through the compiler]) +# +# Check to make sure the static flag actually works. +# +wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\" +_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works], + _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1), + $lt_tmp_static_flag, + [], + [_LT_TAGVAR(lt_prog_compiler_static, $1)=]) +_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1], + [Compiler flag to prevent dynamic linking]) +])# _LT_COMPILER_PIC + + +# _LT_LINKER_SHLIBS([TAGNAME]) +# ---------------------------- +# See if the linker supports building shared libraries. +m4_defun([_LT_LINKER_SHLIBS], +[AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) +m4_if([$1], [CXX], [ + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + case $host_os in + aix[[4-9]]*) + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + ;; + pw32*) + _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds + ;; + cygwin* | mingw* | cegcc*) + case $cc_basename in + cl* | icl*) + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + ;; + esac + ;; + linux* | k*bsd*-gnu | gnu*) + _LT_TAGVAR(link_all_deplibs, $1)=no + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + ;; + esac +], [ + runpath_var= + _LT_TAGVAR(allow_undefined_flag, $1)= + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(archive_cmds, $1)= + _LT_TAGVAR(archive_expsym_cmds, $1)= + _LT_TAGVAR(compiler_needs_object, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(hardcode_automatic, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(hardcode_libdir_separator, $1)= + _LT_TAGVAR(hardcode_minus_L, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + _LT_TAGVAR(inherit_rpath, $1)=no + _LT_TAGVAR(link_all_deplibs, $1)=unknown + _LT_TAGVAR(module_cmds, $1)= + _LT_TAGVAR(module_expsym_cmds, $1)= + _LT_TAGVAR(old_archive_from_new_cmds, $1)= + _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)= + _LT_TAGVAR(thread_safe_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + _LT_TAGVAR(include_expsyms, $1)= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ' (' and ')$', so one must not match beginning or + # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc', + # as well as any symbol that contains 'd'. + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. +dnl Note also adjust exclude_expsyms for C++ above. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ and ICC port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++ or Intel C++ Compiler. + if test yes != "$GCC"; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++ or ICC) + with_gnu_ld=yes + ;; + openbsd* | bitrig*) + with_gnu_ld=no + ;; + linux* | k*bsd*-gnu | gnu*) + _LT_TAGVAR(link_all_deplibs, $1)=no + ;; + esac + + _LT_TAGVAR(ld_shlibs, $1)=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test yes = "$with_gnu_ld"; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;; + *\ \(GNU\ Binutils\)\ [[3-9]]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test yes = "$lt_use_gnu_ld_interface"; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='$wl' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + supports_anon_versioning=no + case `$LD -v | $SED -e 's/([[^)]]\+)\s\+//' 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[[3-9]]*) + # On AIX/PPC, the GNU linker is very broken + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach <jrb3@best.com> says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$SED "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test linux-dietlibc = "$host_os"; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test no = "$tmp_diet" + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + _LT_TAGVAR(whole_archive_flag_spec, $1)= + tmp_sharedflag='--shared' ;; + nagfor*) # NAGFOR 5.3 + tmp_sharedflag='-Wl,-shared' ;; + xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + ;; + esac + case `$CC -V 2>&1 | $SED 5q` in + *Sun\ C*) # Sun C 5.9 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + tcc*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic' + ;; + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + sunos4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + + if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then + runpath_var= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + _LT_TAGVAR(hardcode_direct, $1)=unsupported + fi + ;; + + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then + aix_use_runtimelinking=yes + break + fi + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # traditional, no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GCC"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + ;; + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag="$shared_flag "'$wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + bsdi[[45]]*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++ or Intel C++ Compiler. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl* | icl*) + # Native MSVC or ICC + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC and ICC wrapper + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + # FIXME: Should let the user specify the lib program. + _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + esac + ;; + + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly* | midnightbsd*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + hpux9*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + + hpux10*) + if test yes,no = "$GCC,$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + fi + ;; + + hpux11*) + if test yes,no = "$GCC,$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + m4_if($1, [], [ + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + _LT_LINKER_OPTION([if $CC understands -b], + _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], + [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) + ;; + esac + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], + [lt_cv_irix_exported_symbol], + [save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], + [C++], [[int foo (void) { return 0; }]], + [Fortran 77], [[ + subroutine foo + end]], + [Fortran], [[ + subroutine foo + end]])])], + [lt_cv_irix_exported_symbol=yes], + [lt_cv_irix_exported_symbol=no]) + LDFLAGS=$save_LDFLAGS]) + if test yes = "$lt_cv_irix_exported_symbol"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' + fi + _LT_TAGVAR(link_all_deplibs, $1)=no + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + linux*) + case $cc_basename in + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(ld_shlibs, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + ;; + esac + ;; + + netbsd* | netbsdelf*-gnu) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + newsos6) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *nto* | *qnx*) + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + fi + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + ;; + + osf3*) + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + solaris*) + _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' + if test yes = "$GCC"; then + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. GCC discards it without '$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test yes = "$GCC"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + fi + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + sunos4*) + if test sequent = "$host_vendor"; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4) + case $host_vendor in + sni) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs' + _LT_TAGVAR(hardcode_direct, $1)=no + ;; + motorola) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4.3*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + _LT_TAGVAR(ld_shlibs, $1)=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + if test sni = "$host_vendor"; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym' + ;; + esac + fi + fi +]) +AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) +test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + +_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld + +_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl +_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl +_LT_DECL([], [extract_expsyms_cmds], [2], + [The commands to extract the exported symbol list from a shared archive]) + +# +# Do we need to explicitly link libc? +# +case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in +x|xyes) + # Assume -lc should be added + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + + if test yes,yes = "$GCC,$enable_shared"; then + case $_LT_TAGVAR(archive_cmds, $1) in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + AC_CACHE_CHECK([whether -lc should be explicitly linked in], + [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1), + [$RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if AC_TRY_EVAL(ac_compile) 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) + pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1) + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1) + _LT_TAGVAR(allow_undefined_flag, $1)= + if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) + then + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no + else + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes + fi + _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + ]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1) + ;; + esac + fi + ;; +esac + +_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0], + [Whether or not to add -lc for building shared libraries]) +_LT_TAGDECL([allow_libtool_libs_with_static_runtimes], + [enable_shared_with_static_runtimes], [0], + [Whether or not to disallow shared libs when runtime libs are static]) +_LT_TAGDECL([], [export_dynamic_flag_spec], [1], + [Compiler flag to allow reflexive dlopens]) +_LT_TAGDECL([], [whole_archive_flag_spec], [1], + [Compiler flag to generate shared objects directly from archives]) +_LT_TAGDECL([], [compiler_needs_object], [1], + [Whether the compiler copes with passing no objects directly]) +_LT_TAGDECL([], [old_archive_from_new_cmds], [2], + [Create an old-style archive from a shared archive]) +_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2], + [Create a temporary old-style archive to link instead of a shared archive]) +_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive]) +_LT_TAGDECL([], [archive_expsym_cmds], [2]) +_LT_TAGDECL([], [module_cmds], [2], + [Commands used to build a loadable module if different from building + a shared archive.]) +_LT_TAGDECL([], [module_expsym_cmds], [2]) +_LT_TAGDECL([], [with_gnu_ld], [1], + [Whether we are building with GNU ld or not]) +_LT_TAGDECL([], [allow_undefined_flag], [1], + [Flag that allows shared libraries with undefined symbols to be built]) +_LT_TAGDECL([], [no_undefined_flag], [1], + [Flag that enforces no undefined symbols]) +_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1], + [Flag to hardcode $libdir into a binary during linking. + This must work even if $libdir does not exist]) +_LT_TAGDECL([], [hardcode_libdir_separator], [1], + [Whether we need a single "-rpath" flag with a separated argument]) +_LT_TAGDECL([], [hardcode_direct], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary]) +_LT_TAGDECL([], [hardcode_direct_absolute], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary and the resulting library dependency is + "absolute", i.e impossible to change by setting $shlibpath_var if the + library is relocated]) +_LT_TAGDECL([], [hardcode_minus_L], [0], + [Set to "yes" if using the -LDIR flag during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_shlibpath_var], [0], + [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_automatic], [0], + [Set to "yes" if building a shared library automatically hardcodes DIR + into the library and all subsequent libraries and executables linked + against it]) +_LT_TAGDECL([], [inherit_rpath], [0], + [Set to yes if linker adds runtime paths of dependent libraries + to runtime path list]) +_LT_TAGDECL([], [link_all_deplibs], [0], + [Whether libtool must link a program against all its dependency libraries]) +_LT_TAGDECL([], [always_export_symbols], [0], + [Set to "yes" if exported symbols are required]) +_LT_TAGDECL([], [export_symbols_cmds], [2], + [The commands to list exported symbols]) +_LT_TAGDECL([], [exclude_expsyms], [1], + [Symbols that should not be listed in the preloaded symbols]) +_LT_TAGDECL([], [include_expsyms], [1], + [Symbols that must always be exported]) +_LT_TAGDECL([], [prelink_cmds], [2], + [Commands necessary for linking programs (against libraries) with templates]) +_LT_TAGDECL([], [postlink_cmds], [2], + [Commands necessary for finishing linking programs]) +_LT_TAGDECL([], [file_list_spec], [1], + [Specify filename containing input files]) +dnl FIXME: Not yet implemented +dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1], +dnl [Compiler flag to generate thread safe objects]) +])# _LT_LINKER_SHLIBS + + +# _LT_LANG_C_CONFIG([TAG]) +# ------------------------ +# Ensure that the configuration variables for a C compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_C_CONFIG], +[m4_require([_LT_DECL_EGREP])dnl +lt_save_CC=$CC +AC_LANG_PUSH(C) + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + +_LT_TAG_COMPILER +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + LT_SYS_DLOPEN_SELF + _LT_CMD_STRIPLIB + + # Report what library types will actually be built + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_CONFIG($1) +fi +AC_LANG_POP +CC=$lt_save_CC +])# _LT_LANG_C_CONFIG + + +# _LT_LANG_CXX_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a C++ compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_CXX_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +if test -n "$CXX" && ( test no != "$CXX" && + ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) || + (test g++ != "$CXX"))); then + AC_PROG_CXXCPP +else + _lt_caught_CXX_error=yes +fi + +AC_LANG_PUSH(C++) +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(compiler_needs_object, $1)=no +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for C++ test sources. +ac_ext=cpp + +# Object file extension for compiled C++ test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the CXX compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_caught_CXX_error"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' + else + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + fi + + if test yes = "$GXX"; then + # Set up default GNU C++ configuration + + LT_PATH_LD + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test yes = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='$wl' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) + _LT_TAGVAR(ld_shlibs, $1)=yes + case $host_os in + aix3*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GXX"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag=$shared_flag' $wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + # The "-G" linker flag allows undefined symbols. + _LT_TAGVAR(no_undefined_flag, $1)='-bernotok' + # Determine the default libpath from the value encoded in an empty + # executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared + # libraries. Need -bnortl late, we may have -brtl in LDFLAGS. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach <jrb3@best.com> says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl* | ,icl* | no,icl*) + # Native MSVC or ICC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + freebsd-elf*) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + ;; + + freebsd* | dragonfly* | midnightbsd*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + hpux9*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$SED "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib' + fi + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + esac + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # Archives containing C++ object files must be created using + # "CC -Bstatic", where "CC" is the KAI C++ compiler. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' + ;; + icpc* | ecpc* ) + # Intel C++ + with_gnu_ld=yes + # version 8.0 and above of icpc choke on multiply defined symbols + # if we add $predep_objects and $postdep_objects, however 7.1 and + # earlier do not add the objects themselves. + case `$CC -V 2>&1` in + *"Version 7."*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 8.0 or newer + tmp_idyn= + case $host_cpu in + ia64*) tmp_idyn=' -i_dynamic';; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + case `$CC -V` in + *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) + _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ + compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' + _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ + $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ + $RANLIB $oldlib' + _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 6 and above use weak symbols + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + ;; + cxx*) + # Compaq C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | $SED 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + cxx*) + case $host in + osf3*) + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + ;; + *) + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~ + echo "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~ + $RM $lib.exp' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + case $host in + osf3*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"' + + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + psos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(archive_cmds_need_lc,$1)=yes + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"' + else + # g++ 2.7 appears to require '-G' NOT '-shared' on this + # platform. + _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"' + fi + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir' + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~ + '"$_LT_TAGVAR(old_archive_cmds, $1)" + _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~ + '"$_LT_TAGVAR(reload_cmds, $1)" + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) + test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + + _LT_TAGVAR(GCC, $1)=$GXX + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test yes != "$_lt_caught_CXX_error" + +AC_LANG_POP +])# _LT_LANG_CXX_CONFIG + + +# _LT_FUNC_STRIPNAME_CNF +# ---------------------- +# func_stripname_cnf prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# +# This function is identical to the (non-XSI) version of func_stripname, +# except this one can be used by m4 code that may be executed by configure, +# rather than the libtool script. +m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl +AC_REQUIRE([_LT_DECL_SED]) +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH]) +func_stripname_cnf () +{ + case @S|@2 in + .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;; + *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;; + esac +} # func_stripname_cnf +])# _LT_FUNC_STRIPNAME_CNF + + +# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME]) +# --------------------------------- +# Figure out "hidden" library dependencies from verbose +# compiler output when linking a shared library. +# Parse the compiler output and extract the necessary +# objects, libraries and library flags. +m4_defun([_LT_SYS_HIDDEN_LIBDEPS], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl +# Dependencies to place before and after the object being linked: +_LT_TAGVAR(predep_objects, $1)= +_LT_TAGVAR(postdep_objects, $1)= +_LT_TAGVAR(predeps, $1)= +_LT_TAGVAR(postdeps, $1)= +_LT_TAGVAR(compiler_lib_search_path, $1)= + +dnl we can't use the lt_simple_compile_test_code here, +dnl because it contains code intended for an executable, +dnl not a library. It's possible we should let each +dnl tag define a new lt_????_link_test_code variable, +dnl but it's only used here... +m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF +int a; +void foo (void) { a = 0; } +_LT_EOF +], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF +], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer*4 a + a=0 + return + end +_LT_EOF +], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer a + a=0 + return + end +_LT_EOF +], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF +public class foo { + private int a; + public void bar (void) { + a = 0; + } +}; +_LT_EOF +], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF +package foo +func foo() { +} +_LT_EOF +]) + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +dnl Parse the compiler output and extract the necessary +dnl objects, libraries and library flags. +if AC_TRY_EVAL(ac_compile); then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case $prev$p in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test x-L = "$p" || + test x-R = "$p"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test no = "$pre_test_object_deps_done"; then + case $prev in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then + _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p + else + _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$_LT_TAGVAR(postdeps, $1)"; then + _LT_TAGVAR(postdeps, $1)=$prev$p + else + _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test no = "$pre_test_object_deps_done"; then + if test -z "$_LT_TAGVAR(predep_objects, $1)"; then + _LT_TAGVAR(predep_objects, $1)=$p + else + _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p" + fi + else + if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then + _LT_TAGVAR(postdep_objects, $1)=$p + else + _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling $1 test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +m4_if([$1], [CXX], +[case $host_os in +interix[[3-9]]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + _LT_TAGVAR(predep_objects,$1)= + _LT_TAGVAR(postdep_objects,$1)= + _LT_TAGVAR(postdeps,$1)= + ;; +esac +]) + +case " $_LT_TAGVAR(postdeps, $1) " in +*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; +esac + _LT_TAGVAR(compiler_lib_search_dirs, $1)= +if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then + _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'` +fi +_LT_TAGDECL([], [compiler_lib_search_dirs], [1], + [The directories searched by this compiler when creating a shared library]) +_LT_TAGDECL([], [predep_objects], [1], + [Dependencies to place before and after the objects being linked to + create a shared library]) +_LT_TAGDECL([], [postdep_objects], [1]) +_LT_TAGDECL([], [predeps], [1]) +_LT_TAGDECL([], [postdeps], [1]) +_LT_TAGDECL([], [compiler_lib_search_path], [1], + [The library search path used internally by the compiler when linking + a shared library]) +])# _LT_SYS_HIDDEN_LIBDEPS + + +# _LT_LANG_F77_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a Fortran 77 compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_F77_CONFIG], +[AC_LANG_PUSH(Fortran 77) +if test -z "$F77" || test no = "$F77"; then + _lt_disable_F77=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for f77 test sources. +ac_ext=f + +# Object file extension for compiled f77 test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the F77 compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_F77"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${F77-"f77"} + CFLAGS=$FFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + GCC=$G77 + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$G77 + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_F77" + +AC_LANG_POP +])# _LT_LANG_F77_CONFIG + + +# _LT_LANG_FC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for a Fortran compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_FC_CONFIG], +[AC_LANG_PUSH(Fortran) + +if test -z "$FC" || test no = "$FC"; then + _lt_disable_FC=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for fc test sources. +ac_ext=${ac_fc_srcext-f} + +# Object file extension for compiled fc test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the FC compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_FC"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${FC-"f95"} + CFLAGS=$FCFLAGS + compiler=$CC + GCC=$ac_cv_fc_compiler_gnu + + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_FC" + +AC_LANG_POP +])# _LT_LANG_FC_CONFIG + + +# _LT_LANG_GCJ_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Java Compiler compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GCJ_CONFIG], +[AC_REQUIRE([LT_PROG_GCJ])dnl +AC_LANG_SAVE + +# Source file extension for Java test sources. +ac_ext=java + +# Object file extension for compiled Java test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="class foo {}" + +# Code to be used in simple link tests +lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GCJ-"gcj"} +CFLAGS=$GCJFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# GCJ did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GCJ_CONFIG + + +# _LT_LANG_GO_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Go compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GO_CONFIG], +[AC_REQUIRE([LT_PROG_GO])dnl +AC_LANG_SAVE + +# Source file extension for Go test sources. +ac_ext=go + +# Object file extension for compiled Go test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="package main; func main() { }" + +# Code to be used in simple link tests +lt_simple_link_test_code='package main; func main() { }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GOC-"gccgo"} +CFLAGS=$GOFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# Go did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GO_CONFIG + + +# _LT_LANG_RC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for the Windows resource compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_RC_CONFIG], +[AC_REQUIRE([LT_PROG_RC])dnl +AC_LANG_SAVE + +# Source file extension for RC test sources. +ac_ext=rc + +# Object file extension for compiled RC test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }' + +# Code to be used in simple link tests +lt_simple_link_test_code=$lt_simple_compile_test_code + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC= +CC=${RC-"windres"} +CFLAGS= +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_CC_BASENAME([$compiler]) +_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + +if test -n "$compiler"; then + : + _LT_CONFIG($1) +fi + +GCC=$lt_save_GCC +AC_LANG_RESTORE +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_RC_CONFIG + + +# LT_PROG_GCJ +# ----------- +AC_DEFUN([LT_PROG_GCJ], +[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ], + [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ], + [AC_CHECK_TOOL(GCJ, gcj,) + test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2" + AC_SUBST(GCJFLAGS)])])[]dnl +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_GCJ], []) + + +# LT_PROG_GO +# ---------- +AC_DEFUN([LT_PROG_GO], +[AC_CHECK_TOOL(GOC, gccgo,) +]) + + +# LT_PROG_RC +# ---------- +AC_DEFUN([LT_PROG_RC], +[AC_CHECK_TOOL(RC, windres,) +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_RC], []) + + +# _LT_DECL_EGREP +# -------------- +# If we don't have a new enough Autoconf to choose the best grep +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_EGREP], +[AC_REQUIRE([AC_PROG_EGREP])dnl +AC_REQUIRE([AC_PROG_FGREP])dnl +test -z "$GREP" && GREP=grep +_LT_DECL([], [GREP], [1], [A grep program that handles long lines]) +_LT_DECL([], [EGREP], [1], [An ERE matcher]) +_LT_DECL([], [FGREP], [1], [A literal string matcher]) +dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too +AC_SUBST([GREP]) +]) + + +# _LT_DECL_OBJDUMP +# -------------- +# If we don't have a new enough Autoconf to choose the best objdump +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_OBJDUMP], +[AC_CHECK_TOOL(OBJDUMP, objdump, false) +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper]) +AC_SUBST([OBJDUMP]) +]) + +# _LT_DECL_DLLTOOL +# ---------------- +# Ensure DLLTOOL variable is set. +m4_defun([_LT_DECL_DLLTOOL], +[AC_CHECK_TOOL(DLLTOOL, dlltool, false) +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program]) +AC_SUBST([DLLTOOL]) +]) + +# _LT_DECL_FILECMD +# ---------------- +# Check for a file(cmd) program that can be used to detect file type and magic +m4_defun([_LT_DECL_FILECMD], +[AC_CHECK_TOOL([FILECMD], [file], [:]) +_LT_DECL([], [FILECMD], [1], [A file(cmd) program that detects file types]) +])# _LD_DECL_FILECMD + +# _LT_DECL_SED +# ------------ +# Check for a fully-functional sed program, that truncates +# as few characters as possible. Prefer GNU sed if found. +m4_defun([_LT_DECL_SED], +[AC_PROG_SED +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" +_LT_DECL([], [SED], [1], [A sed program that does not truncate output]) +_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"], + [Sed that helps us avoid accidentally triggering echo(1) options like -n]) +])# _LT_DECL_SED + +m4_ifndef([AC_PROG_SED], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_SED. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ + +m4_defun([AC_PROG_SED], +[AC_MSG_CHECKING([for a sed that does not truncate output]) +AC_CACHE_VAL(lt_cv_path_SED, +[# Loop through the user's path and test for sed and gsed. +# Then use that list of sed's as ones to test for truncation. +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for lt_ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then + lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext" + fi + done + done +done +IFS=$as_save_IFS +lt_ac_max=0 +lt_ac_count=0 +# Add /usr/xpg4/bin/sed as it is typically found on Solaris +# along with /bin/sed that truncates output. +for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do + test ! -f "$lt_ac_sed" && continue + cat /dev/null > conftest.in + lt_ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >conftest.in + # Check for GNU sed and select it if it is found. + if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then + lt_cv_path_SED=$lt_ac_sed + break + fi + while true; do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo >>conftest.nl + $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break + cmp -s conftest.out conftest.nl || break + # 10000 chars as input seems more than enough + test 10 -lt "$lt_ac_count" && break + lt_ac_count=`expr $lt_ac_count + 1` + if test "$lt_ac_count" -gt "$lt_ac_max"; then + lt_ac_max=$lt_ac_count + lt_cv_path_SED=$lt_ac_sed + fi + done +done +]) +SED=$lt_cv_path_SED +AC_SUBST([SED]) +AC_MSG_RESULT([$SED]) +])#AC_PROG_SED +])#m4_ifndef + +# Old name: +AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_SED], []) + + +# _LT_CHECK_SHELL_FEATURES +# ------------------------ +# Find out whether the shell is Bourne or XSI compatible, +# or has some other useful features. +m4_defun([_LT_CHECK_SHELL_FEATURES], +[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi +_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac +_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl +_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl +])# _LT_CHECK_SHELL_FEATURES + + +# _LT_PATH_CONVERSION_FUNCTIONS +# ----------------------------- +# Determine what file name conversion functions should be used by +# func_to_host_file (and, implicitly, by func_to_host_path). These are needed +# for certain cross-compile configurations and native mingw. +m4_defun([_LT_PATH_CONVERSION_FUNCTIONS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_MSG_CHECKING([how to convert $build file names to $host format]) +AC_CACHE_VAL(lt_cv_to_host_file_cmd, +[case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac +]) +to_host_file_cmd=$lt_cv_to_host_file_cmd +AC_MSG_RESULT([$lt_cv_to_host_file_cmd]) +_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd], + [0], [convert $build file names to $host format])dnl + +AC_MSG_CHECKING([how to convert $build file names to toolchain format]) +AC_CACHE_VAL(lt_cv_to_tool_file_cmd, +[#assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac +]) +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +AC_MSG_RESULT([$lt_cv_to_tool_file_cmd]) +_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd], + [0], [convert $build files to toolchain format])dnl +])# _LT_PATH_CONVERSION_FUNCTIONS diff --git a/gl/m4/limits-h.m4 b/gl/m4/limits-h.m4 new file mode 100644 index 0000000..6a5983e --- /dev/null +++ b/gl/m4/limits-h.m4 @@ -0,0 +1,54 @@ +dnl Check whether limits.h has needed features. + +dnl Copyright 2016-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_DEFUN_ONCE([gl_LIMITS_H], +[ + gl_CHECK_NEXT_HEADERS([limits.h]) + + AC_CACHE_CHECK([whether limits.h has WORD_BIT, BOOL_WIDTH etc.], + [gl_cv_header_limits_width], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include <limits.h> + long long llm = LLONG_MAX; + int wb = WORD_BIT; + int ullw = ULLONG_WIDTH; + int bw = BOOL_WIDTH; + int bm = BOOL_MAX; + int mblm = MB_LEN_MAX; + ]])], + [gl_cv_header_limits_width=yes], + [gl_cv_header_limits_width=no])]) + GL_GENERATE_LIMITS_H=true + AS_IF([test "$gl_cv_header_limits_width" = yes], + [AC_CACHE_CHECK([whether limits.h has SSIZE_MAX], + [gl_cv_header_limits_ssize_max], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#include <limits.h> + #ifndef SSIZE_MAX + #error "SSIZE_MAX is not defined" + #endif + ]])], + [gl_cv_header_limits_ssize_max=yes], + [gl_cv_header_limits_ssize_max=no])]) + if test "$gl_cv_header_limits_ssize_max" = yes; then + GL_GENERATE_LIMITS_H=false + fi]) +]) + +dnl Unconditionally enables the replacement of <limits.h>. +AC_DEFUN([gl_REPLACE_LIMITS_H], +[ + AC_REQUIRE([gl_LIMITS_H]) + GL_GENERATE_LIMITS_H=true +]) diff --git a/gl/m4/localcharset.m4 b/gl/m4/localcharset.m4 new file mode 100644 index 0000000..15b6b2a --- /dev/null +++ b/gl/m4/localcharset.m4 @@ -0,0 +1,11 @@ +# localcharset.m4 serial 8 +dnl Copyright (C) 2002, 2004, 2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_LOCALCHARSET], +[ + dnl Prerequisites of lib/localcharset.c. + AC_REQUIRE([AM_LANGINFO_CODESET]) +]) diff --git a/gl/m4/locale-fr.m4 b/gl/m4/locale-fr.m4 new file mode 100644 index 0000000..107ab93 --- /dev/null +++ b/gl/m4/locale-fr.m4 @@ -0,0 +1,288 @@ +# locale-fr.m4 serial 21 +dnl Copyright (C) 2003, 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +dnl Determine the name of a french locale with traditional encoding. +AC_DEFUN_ONCE([gt_LOCALE_FR], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AM_LANGINFO_CODESET]) + AC_CACHE_CHECK([for a traditional french locale], [gt_cv_locale_fr], [ + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ +#include <locale.h> +#include <time.h> +#if HAVE_LANGINFO_CODESET +# include <langinfo.h> +#endif +#include <stdlib.h> +#include <string.h> +struct tm t; +char buf[16]; +int main () { + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else + /* Check whether the given locale name is recognized by the system. */ +# if defined _WIN32 && !defined __CYGWIN__ + /* On native Windows, setlocale(category, "") looks at the system settings, + not at the environment variables. Also, when an encoding suffix such + as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE + category of the locale to "C". */ + if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL + || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) + return 1; +# else + if (setlocale (LC_ALL, "") == NULL) return 1; +# endif + /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". + On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) + is empty, and the behaviour of Tcl 8.4 in this locale is not useful. + On OpenBSD 4.0, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "646". In this situation, + some unit tests fail. + On MirBSD 10, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "UTF-8". */ +# if HAVE_LANGINFO_CODESET + { + const char *cs = nl_langinfo (CODESET); + if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 + || strcmp (cs, "UTF-8") == 0) + return 1; + } +# endif +# ifdef __CYGWIN__ + /* On Cygwin, avoid locale names without encoding suffix, because the + locale_charset() function relies on the encoding suffix. Note that + LC_ALL is set on the command line. */ + if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; +# endif + /* Check whether in the abbreviation of the second month, the second + character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is only + one byte long. This excludes the UTF-8 encoding. */ + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%b", &t) < 3 || buf[2] != 'v') return 1; +# if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy. */ + /* Check whether the decimal separator is a comma. + On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point + are nl_langinfo(RADIXCHAR) are both ".". */ + if (localeconv () ->decimal_point[0] != ',') return 1; +# endif + return 0; +#endif +} + ]])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + case "$host_os" in + # Handle native Windows specially, because there setlocale() interprets + # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", + # "fr" or "fra" as "French" or "French_France.1252", + # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", + # "ja" as "Japanese" or "Japanese_Japan.932", + # and similar. + mingw*) + # Test for the native Windows locale name. + if (LC_ALL=French_France.1252 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=French_France.1252 + else + # None found. + gt_cv_locale_fr=none + fi + ;; + *) + # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because + # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the + # configure script would override the LC_ALL setting. Likewise for + # LC_CTYPE, which is also set at the beginning of the configure script. + # Test for the usual locale name. + if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=fr_FR + else + # Test for the locale name with explicit encoding suffix. + if (LC_ALL=fr_FR.ISO-8859-1 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=fr_FR.ISO-8859-1 + else + # Test for the AIX, OSF/1, FreeBSD, NetBSD, OpenBSD locale name. + if (LC_ALL=fr_FR.ISO8859-1 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=fr_FR.ISO8859-1 + else + # Test for the HP-UX locale name. + if (LC_ALL=fr_FR.iso88591 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=fr_FR.iso88591 + else + # Test for the Solaris 7 locale name. + if (LC_ALL=fr LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr=fr + else + # None found. + gt_cv_locale_fr=none + fi + fi + fi + fi + fi + ;; + esac + fi + rm -fr conftest* + ]) + LOCALE_FR=$gt_cv_locale_fr + AC_SUBST([LOCALE_FR]) +]) + +dnl Determine the name of a french locale with UTF-8 encoding. +AC_DEFUN_ONCE([gt_LOCALE_FR_UTF8], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AM_LANGINFO_CODESET]) + AC_CACHE_CHECK([for a french Unicode locale], [gt_cv_locale_fr_utf8], [ + case "$host_os" in + *-musl* | midipix*) + dnl On musl libc, all kinds of ll_CC.UTF-8 locales exist, even without + dnl any locale file on disk. But they are effectively equivalent to the + dnl C.UTF-8 locale, except for locale categories (such as LC_MESSSAGES) + dnl for which localizations (.mo files) have been installed. + gt_cv_locale_fr_utf8=fr_FR.UTF-8 + ;; + *) + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ +#include <locale.h> +#include <time.h> +#if HAVE_LANGINFO_CODESET +# include <langinfo.h> +#endif +#include <stdlib.h> +#include <string.h> +struct tm t; +char buf[16]; +int main () { + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if !(defined __BEOS__ || defined __HAIKU__) + /* Check whether the given locale name is recognized by the system. */ +# if defined _WIN32 && !defined __CYGWIN__ + /* On native Windows, setlocale(category, "") looks at the system settings, + not at the environment variables. Also, when an encoding suffix such + as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE + category of the locale to "C". */ + if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL + || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) + return 1; +# else + if (setlocale (LC_ALL, "") == NULL) return 1; +# endif + /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". + On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) + is empty, and the behaviour of Tcl 8.4 in this locale is not useful. + On OpenBSD 4.0, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "646". In this situation, + some unit tests fail. */ +# if HAVE_LANGINFO_CODESET + { + const char *cs = nl_langinfo (CODESET); + if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0) + return 1; + } +# endif +# ifdef __CYGWIN__ + /* On Cygwin, avoid locale names without encoding suffix, because the + locale_charset() function relies on the encoding suffix. Note that + LC_ALL is set on the command line. */ + if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; +# endif + /* Check whether in the abbreviation of the second month, the second + character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is + two bytes long, with UTF-8 encoding. */ + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%b", &t) < 4 + || buf[1] != (char) 0xc3 || buf[2] != (char) 0xa9 || buf[3] != 'v') + return 1; +#endif +#if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy. */ + /* Check whether the decimal separator is a comma. + On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point + are nl_langinfo(RADIXCHAR) are both ".". */ + if (localeconv () ->decimal_point[0] != ',') return 1; +#endif + return 0; +} + ]])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + case "$host_os" in + # Handle native Windows specially, because there setlocale() interprets + # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", + # "fr" or "fra" as "French" or "French_France.1252", + # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", + # "ja" as "Japanese" or "Japanese_Japan.932", + # and similar. + mingw*) + # Test for the hypothetical native Windows locale name. + if (LC_ALL=French_France.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr_utf8=French_France.65001 + else + # None found. + gt_cv_locale_fr_utf8=none + fi + ;; + *) + # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because + # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the + # configure script would override the LC_ALL setting. Likewise for + # LC_CTYPE, which is also set at the beginning of the configure script. + # Test for the usual locale name. + if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr_utf8=fr_FR + else + # Test for the locale name with explicit encoding suffix. + if (LC_ALL=fr_FR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr_utf8=fr_FR.UTF-8 + else + # Test for the Solaris 7 locale name. + if (LC_ALL=fr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_fr_utf8=fr.UTF-8 + else + # None found. + gt_cv_locale_fr_utf8=none + fi + fi + fi + ;; + esac + fi + rm -fr conftest* + ;; + esac + ]) + LOCALE_FR_UTF8=$gt_cv_locale_fr_utf8 + AC_SUBST([LOCALE_FR_UTF8]) + + dnl Users of $LOCALE_FR_UTF8 need to know which of the locale categories they + dnl can rely on. + case "$host_os" in + *-musl* | midipix*) + dnl On musl libc, locale categories other than LC_CTYPE and LC_MESSAGES + dnl are effectively unimplemented. + LC_COLLATE_IMPLEMENTED=false + LC_NUMERIC_IMPLEMENTED=false + LC_TIME_IMPLEMENTED=false + LC_MONETARY_IMPLEMENTED=false + ;; + *) + LC_COLLATE_IMPLEMENTED=true + LC_NUMERIC_IMPLEMENTED=true + LC_TIME_IMPLEMENTED=true + LC_MONETARY_IMPLEMENTED=true + ;; + esac + AC_SUBST([LC_COLLATE_IMPLEMENTED]) + AC_SUBST([LC_NUMERIC_IMPLEMENTED]) + AC_SUBST([LC_TIME_IMPLEMENTED]) + AC_SUBST([LC_MONETARY_IMPLEMENTED]) +]) diff --git a/gl/m4/locale-ja.m4 b/gl/m4/locale-ja.m4 new file mode 100644 index 0000000..f6ca327 --- /dev/null +++ b/gl/m4/locale-ja.m4 @@ -0,0 +1,143 @@ +# locale-ja.m4 serial 16 +dnl Copyright (C) 2003, 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +dnl Determine the name of a japanese locale with EUC-JP encoding. +AC_DEFUN_ONCE([gt_LOCALE_JA], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AM_LANGINFO_CODESET]) + AC_CACHE_CHECK([for a traditional japanese locale], [gt_cv_locale_ja], [ + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ +#include <locale.h> +#include <time.h> +#if HAVE_LANGINFO_CODESET +# include <langinfo.h> +#endif +#include <stdlib.h> +#include <string.h> +struct tm t; +char buf[16]; +int main () +{ + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else + /* Check whether the given locale name is recognized by the system. */ +# if defined _WIN32 && !defined __CYGWIN__ + /* On native Windows, setlocale(category, "") looks at the system settings, + not at the environment variables. Also, when an encoding suffix such + as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE + category of the locale to "C". */ + if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL + || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) + return 1; +# else + if (setlocale (LC_ALL, "") == NULL) return 1; +# endif + /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". + On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) + is empty, and the behaviour of Tcl 8.4 in this locale is not useful. + On OpenBSD 4.0, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "646". In this situation, + some unit tests fail. + On MirBSD 10, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "UTF-8". */ +# if HAVE_LANGINFO_CODESET + { + const char *cs = nl_langinfo (CODESET); + if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 + || strcmp (cs, "UTF-8") == 0) + return 1; + } +# endif +# ifdef __CYGWIN__ + /* On Cygwin, avoid locale names without encoding suffix, because the + locale_charset() function relies on the encoding suffix. Note that + LC_ALL is set on the command line. */ + if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; +# endif + /* Check whether MB_CUR_MAX is > 1. This excludes the dysfunctional locales + on Cygwin 1.5.x. */ + if (MB_CUR_MAX == 1) + return 1; + /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. + This excludes the UTF-8 encoding (except on MirBSD). */ + { + const char *p; + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; + for (p = buf; *p != '\0'; p++) + if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) + return 1; + } + return 0; +#endif +} + ]])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + case "$host_os" in + # Handle native Windows specially, because there setlocale() interprets + # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", + # "fr" or "fra" as "French" or "French_France.1252", + # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", + # "ja" as "Japanese" or "Japanese_Japan.932", + # and similar. + mingw*) + # Note that on native Windows, the Japanese locale is + # Japanese_Japan.932, and CP932 is very different from EUC-JP, so we + # cannot use it here. + gt_cv_locale_ja=none + ;; + *) + # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because + # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the + # configure script would override the LC_ALL setting. Likewise for + # LC_CTYPE, which is also set at the beginning of the configure script. + # Test for the AIX locale name. + if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_ja=ja_JP + else + # Test for the locale name with explicit encoding suffix. + if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_ja=ja_JP.EUC-JP + else + # Test for the HP-UX, OSF/1, NetBSD locale name. + if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_ja=ja_JP.eucJP + else + # Test for the IRIX, FreeBSD locale name. + if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_ja=ja_JP.EUC + else + # Test for the Solaris 7 locale name. + if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_ja=ja + else + # Special test for NetBSD 1.6. + if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then + gt_cv_locale_ja=ja_JP.eucJP + else + # None found. + gt_cv_locale_ja=none + fi + fi + fi + fi + fi + fi + ;; + esac + fi + rm -fr conftest* + ]) + LOCALE_JA=$gt_cv_locale_ja + AC_SUBST([LOCALE_JA]) +]) diff --git a/gl/m4/locale-zh.m4 b/gl/m4/locale-zh.m4 new file mode 100644 index 0000000..94c5459 --- /dev/null +++ b/gl/m4/locale-zh.m4 @@ -0,0 +1,137 @@ +# locale-zh.m4 serial 16 +dnl Copyright (C) 2003, 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +dnl Determine the name of a chinese locale with GB18030 encoding. +AC_DEFUN_ONCE([gt_LOCALE_ZH_CN], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AM_LANGINFO_CODESET]) + AC_CACHE_CHECK([for a transitional chinese locale], [gt_cv_locale_zh_CN], [ + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +#include <time.h> +#if HAVE_LANGINFO_CODESET +# include <langinfo.h> +#endif +#include <stdlib.h> +#include <string.h> +struct tm t; +char buf[16]; +int main () +{ + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else + /* Check whether the given locale name is recognized by the system. */ +# if defined _WIN32 && !defined __CYGWIN__ + /* On native Windows, setlocale(category, "") looks at the system settings, + not at the environment variables. Also, when an encoding suffix such + as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE + category of the locale to "C". */ + if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL + || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) + return 1; +# else + if (setlocale (LC_ALL, "") == NULL) return 1; +# endif + /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". + On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) + is empty, and the behaviour of Tcl 8.4 in this locale is not useful. + On OpenBSD 4.0, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "646". In this situation, + some unit tests fail. + On MirBSD 10, when an unsupported locale is specified, setlocale() + succeeds but then nl_langinfo(CODESET) is "UTF-8". */ +# if HAVE_LANGINFO_CODESET + { + const char *cs = nl_langinfo (CODESET); + if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 + || strcmp (cs, "UTF-8") == 0) + return 1; + } +# endif +# ifdef __CYGWIN__ + /* On Cygwin, avoid locale names without encoding suffix, because the + locale_charset() function relies on the encoding suffix. Note that + LC_ALL is set on the command line. */ + if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; +# endif + /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. + This excludes the UTF-8 encoding (except on MirBSD). */ + { + const char *p; + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; + for (p = buf; *p != '\0'; p++) + if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) + return 1; + } + /* Check whether a typical GB18030 multibyte sequence is recognized as a + single wide character. This excludes the GB2312 and GBK encodings. */ + if (mblen ("\203\062\332\066", 5) != 4) + return 1; + return 0; +#endif +} + ]])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + case "$host_os" in + # Handle native Windows specially, because there setlocale() interprets + # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", + # "fr" or "fra" as "French" or "French_France.1252", + # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", + # "ja" as "Japanese" or "Japanese_Japan.932", + # and similar. + mingw*) + # Test for the hypothetical native Windows locale name. + if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_zh_CN=Chinese_China.54936 + else + # None found. + gt_cv_locale_zh_CN=none + fi + ;; + solaris2.8) + # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are + # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK. + # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core. + gt_cv_locale_zh_CN=none + ;; + *) + # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because + # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the + # configure script would override the LC_ALL setting. Likewise for + # LC_CTYPE, which is also set at the beginning of the configure script. + # Test for the locale name without encoding suffix. + if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_zh_CN=zh_CN + else + # Test for the locale name with explicit encoding suffix. + if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_zh_CN=zh_CN.GB18030 + else + # None found. + gt_cv_locale_zh_CN=none + fi + fi + ;; + esac + else + # If there was a link error, due to mblen(), the system is so old that + # it certainly doesn't have a chinese locale. + gt_cv_locale_zh_CN=none + fi + rm -fr conftest* + ]) + LOCALE_ZH_CN=$gt_cv_locale_zh_CN + AC_SUBST([LOCALE_ZH_CN]) +]) diff --git a/gl/m4/locale_h.m4 b/gl/m4/locale_h.m4 new file mode 100644 index 0000000..a33a0a4 --- /dev/null +++ b/gl/m4/locale_h.m4 @@ -0,0 +1,174 @@ +# locale_h.m4 serial 28 +dnl Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_LOCALE_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) + + dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_* + dnl members of 'struct lconv'. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + dnl If <stddef.h> is replaced, then <locale.h> must also be replaced. + AC_REQUIRE([gl_STDDEF_H]) + + AC_REQUIRE([gl_LOCALE_T]) + + dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv' + dnl only if _LCONV_C99 is defined. + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + solaris*) + AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.]) + ;; + esac + + AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001], + [gl_cv_header_locale_h_posix2001], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + int x = LC_MESSAGES; + int y = sizeof (((struct lconv *) 0)->decimal_point);]], + [[]])], + [gl_cv_header_locale_h_posix2001=yes], + [gl_cv_header_locale_h_posix2001=no])]) + + dnl Check whether 'struct lconv' is complete. + dnl Bionic libc's 'struct lconv' is just a dummy. + dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, + dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members. + AC_CACHE_CHECK([whether struct lconv is properly defined], + [gl_cv_sys_struct_lconv_ok], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + struct lconv l; + int x = sizeof (l.decimal_point); + int y = sizeof (l.int_p_cs_precedes);]], + [[]])], + [gl_cv_sys_struct_lconv_ok=yes], + [gl_cv_sys_struct_lconv_ok=no]) + ]) + if test $gl_cv_sys_struct_lconv_ok = no; then + dnl On native Windows with MSVC, merely define these member names as macros. + dnl This avoids trouble in C++ mode. + case "$host_os" in + mingw*) + AC_EGREP_CPP([Special], [ +#ifdef _MSC_VER + Special +#endif + ], + [], + [REPLACE_STRUCT_LCONV=1]) + ;; + *) REPLACE_STRUCT_LCONV=1 ;; + esac + fi + + dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_NEXT_HEADERS([locale.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <locale.h> +/* Some systems provide declarations in a non-standard header. */ +#if HAVE_XLOCALE_H +# include <xlocale.h> +#endif + ]], + [setlocale newlocale duplocale freelocale]) +]) + +dnl Checks to determine whether the system has the locale_t type, +dnl and how to obtain it. +AC_DEFUN([gl_LOCALE_T], +[ + dnl Persuade glibc and Solaris <locale.h> to define locale_t. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + dnl Check whether use of locale_t requires inclusion of <xlocale.h>, + dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by + dnl itself, we assume that <xlocale.h> will do so. + AC_CACHE_CHECK([whether locale.h defines locale_t], + [gl_cv_header_locale_has_locale_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + locale_t x;]], + [[]])], + [gl_cv_header_locale_has_locale_t=yes], + [gl_cv_header_locale_has_locale_t=no]) + ]) + + dnl Check for <xlocale.h>. + AC_CHECK_HEADERS_ONCE([xlocale.h]) + if test $ac_cv_header_xlocale_h = yes; then + HAVE_XLOCALE_H=1 + if test $gl_cv_header_locale_has_locale_t = yes; then + gl_cv_header_locale_h_needs_xlocale_h=no + else + gl_cv_header_locale_h_needs_xlocale_h=yes + fi + HAVE_LOCALE_T=1 + else + HAVE_XLOCALE_H=0 + gl_cv_header_locale_h_needs_xlocale_h=no + if test $gl_cv_header_locale_has_locale_t = yes; then + HAVE_LOCALE_T=1 + else + HAVE_LOCALE_T=0 + fi + fi + AC_SUBST([HAVE_XLOCALE_H]) +]) + +# gl_LOCALE_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_LOCALE_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_LOCALE_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_LOCALE_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALECONV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETLOCALE_NULL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUPLOCALE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALENAME]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_LOCALE_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) +]) + +AC_DEFUN([gl_LOCALE_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_NEWLOCALE=1; AC_SUBST([HAVE_NEWLOCALE]) + HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE]) + HAVE_FREELOCALE=1; AC_SUBST([HAVE_FREELOCALE]) + REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV]) + REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE]) + REPLACE_NEWLOCALE=0; AC_SUBST([REPLACE_NEWLOCALE]) + REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE]) + REPLACE_FREELOCALE=0; AC_SUBST([REPLACE_FREELOCALE]) + REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV]) + LOCALENAME_ENHANCE_LOCALE_FUNCS=0; AC_SUBST([LOCALENAME_ENHANCE_LOCALE_FUNCS]) +]) diff --git a/gl/m4/localeconv.m4 b/gl/m4/localeconv.m4 new file mode 100644 index 0000000..374dcbf --- /dev/null +++ b/gl/m4/localeconv.m4 @@ -0,0 +1,59 @@ +# localeconv.m4 serial 2 +dnl Copyright (C) 2012-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_LOCALECONV], +[ + AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) + AC_REQUIRE([gl_LOCALE_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + if test $REPLACE_STRUCT_LCONV = 1; then + REPLACE_LOCALECONV=1 + fi + if test $REPLACE_LOCALECONV = 0; then + dnl Test whether fields of type 'char' are filled correctly. + dnl This test fails on mingw 5.0.3. + AC_CACHE_CHECK([whether localeconv works], + [gl_cv_func_localeconv_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <locale.h> + #include <limits.h> + int main () + { + struct lconv *l = localeconv (); + return l->frac_digits != CHAR_MAX && l->frac_digits < 0; + } + ]])], + [gl_cv_func_localeconv_works=yes], + [gl_cv_func_localeconv_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_localeconv_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_localeconv_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_localeconv_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_localeconv_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_localeconv_works" in + *yes) ;; + *) REPLACE_LOCALECONV=1 ;; + esac + fi +]) + +# Prerequisites of lib/localeconv.c. +AC_DEFUN([gl_PREREQ_LOCALECONV], +[ + AC_CHECK_MEMBERS([struct lconv.decimal_point], [], [], + [[#include <locale.h>]]) + AC_CHECK_MEMBERS([struct lconv.int_p_cs_precedes], [], [], + [[#include <locale.h>]]) +]) diff --git a/gl/m4/lock.m4 b/gl/m4/lock.m4 new file mode 100644 index 0000000..88cf557 --- /dev/null +++ b/gl/m4/lock.m4 @@ -0,0 +1,47 @@ +# lock.m4 serial 14 +dnl Copyright (C) 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gl_LOCK], +[ + AC_REQUIRE([gl_THREADLIB]) + if test "$gl_threads_api" = posix; then + # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the + # pthread_rwlock_* functions. + has_rwlock=false + AC_CHECK_TYPE([pthread_rwlock_t], + [has_rwlock=true + AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], + [Define if the POSIX multithreading library has read/write locks.])], + [], + [#include <pthread.h>]) + if $has_rwlock; then + gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER + fi + # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM( + [[#include <pthread.h>]], + [[ +#if __FreeBSD__ == 4 +error "No, in FreeBSD 4.0 recursive mutexes actually don't work." +#elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \ + && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070) +error "No, in Mac OS X < 10.7 recursive mutexes actually don't work." +#else +int x = (int)PTHREAD_MUTEX_RECURSIVE; +return !x; +#endif + ]])], + [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], + [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) + fi + gl_PREREQ_LOCK +]) + +# Prerequisites of lib/glthread/lock.c. +AC_DEFUN([gl_PREREQ_LOCK], [:]) diff --git a/gl/m4/lstat.m4 b/gl/m4/lstat.m4 new file mode 100644 index 0000000..2bc4669 --- /dev/null +++ b/gl/m4/lstat.m4 @@ -0,0 +1,82 @@ +# serial 34 + +# Copyright (C) 1997-2001, 2003-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering. + +AC_DEFUN([gl_FUNC_LSTAT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + dnl If lstat does not exist, the replacement <sys/stat.h> does + dnl "#define lstat stat", and lstat.c is a no-op. + AC_CHECK_FUNCS_ONCE([lstat]) + if test $ac_cv_func_lstat = yes; then + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + case $host_os,$gl_cv_func_lstat_dereferences_slashed_symlink in + solaris* | *no) + REPLACE_LSTAT=1 + ;; + esac + else + HAVE_LSTAT=0 + fi +]) + +# Prerequisites of lib/lstat.c. +AC_DEFUN([gl_PREREQ_LSTAT], [:]) + +AC_DEFUN([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK], +[ + dnl We don't use AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK any more, because it + dnl is no longer maintained in Autoconf and because it invokes AC_LIBOBJ. + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether lstat correctly handles trailing slash], + [gl_cv_func_lstat_dereferences_slashed_symlink], + [rm -f conftest.sym conftest.file + echo >conftest.file + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT], + [[struct stat sbuf; + if (symlink ("conftest.file", "conftest.sym") != 0) + return 1; + /* Linux will dereference the symlink and fail, as required by + POSIX. That is better in the sense that it means we will not + have to compile and use the lstat wrapper. */ + return lstat ("conftest.sym/", &sbuf) == 0; + ]])], + [gl_cv_func_lstat_dereferences_slashed_symlink=yes], + [gl_cv_func_lstat_dereferences_slashed_symlink=no], + [case "$host_os" in + linux-* | linux) + # Guess yes on Linux systems. + gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; + midipix*) + # Guess yes on systems that emulate the Linux system calls. + gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; + *-gnu* | gnu*) + # Guess yes on glibc systems. + gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; + mingw*) + # Guess no on native Windows. + gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;; + *) + # If we don't know, obey --enable-cross-guesses. + gl_cv_func_lstat_dereferences_slashed_symlink="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.sym conftest.file + ]) + case "$gl_cv_func_lstat_dereferences_slashed_symlink" in + *yes) + AC_DEFINE_UNQUOTED([LSTAT_FOLLOWS_SLASHED_SYMLINK], [1], + [Define to 1 if 'lstat' dereferences a symlink specified + with a trailing slash.]) + ;; + esac +]) diff --git a/gl/m4/ltoptions.m4 b/gl/m4/ltoptions.m4 new file mode 100644 index 0000000..b0b5e9c --- /dev/null +++ b/gl/m4/ltoptions.m4 @@ -0,0 +1,437 @@ +# Helper functions for option handling. -*- Autoconf -*- +# +# Copyright (C) 2004-2005, 2007-2009, 2011-2019, 2021-2022 Free +# Software Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 8 ltoptions.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) + + +# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) +# ------------------------------------------ +m4_define([_LT_MANGLE_OPTION], +[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) + + +# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) +# --------------------------------------- +# Set option OPTION-NAME for macro MACRO-NAME, and if there is a +# matching handler defined, dispatch to it. Other OPTION-NAMEs are +# saved as a flag. +m4_define([_LT_SET_OPTION], +[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl +m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), + _LT_MANGLE_DEFUN([$1], [$2]), + [m4_warning([Unknown $1 option '$2'])])[]dnl +]) + + +# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) +# ------------------------------------------------------------ +# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. +m4_define([_LT_IF_OPTION], +[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) + + +# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) +# ------------------------------------------------------- +# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME +# are set. +m4_define([_LT_UNLESS_OPTIONS], +[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), + [m4_define([$0_found])])])[]dnl +m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 +])[]dnl +]) + + +# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) +# ---------------------------------------- +# OPTION-LIST is a space-separated list of Libtool options associated +# with MACRO-NAME. If any OPTION has a matching handler declared with +# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about +# the unknown option and exit. +m4_defun([_LT_SET_OPTIONS], +[# Set options +m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [_LT_SET_OPTION([$1], _LT_Option)]) + +m4_if([$1],[LT_INIT],[ + dnl + dnl Simply set some default values (i.e off) if boolean options were not + dnl specified: + _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no + ]) + _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no + ]) + dnl + dnl If no reference was made to various pairs of opposing options, then + dnl we run the default mode handler for the pair. For example, if neither + dnl 'shared' nor 'disable-shared' was passed, we enable building of shared + dnl archives by default: + _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) + _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], + [_LT_ENABLE_FAST_INSTALL]) + _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4], + [_LT_WITH_AIX_SONAME([aix])]) + ]) +])# _LT_SET_OPTIONS + + +## --------------------------------- ## +## Macros to handle LT_INIT options. ## +## --------------------------------- ## + +# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) +# ----------------------------------------- +m4_define([_LT_MANGLE_DEFUN], +[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) + + +# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) +# ----------------------------------------------- +m4_define([LT_OPTION_DEFINE], +[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl +])# LT_OPTION_DEFINE + + +# dlopen +# ------ +LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes +]) + +AU_DEFUN([AC_LIBTOOL_DLOPEN], +[_LT_SET_OPTION([LT_INIT], [dlopen]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'dlopen' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) + + +# win32-dll +# --------- +# Declare package support for building win32 dll's. +LT_OPTION_DEFINE([LT_INIT], [win32-dll], +[enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + AC_CHECK_TOOL(AS, as, false) + AC_CHECK_TOOL(DLLTOOL, dlltool, false) + AC_CHECK_TOOL(OBJDUMP, objdump, false) + ;; +esac + +test -z "$AS" && AS=as +_LT_DECL([], [AS], [1], [Assembler program])dnl + +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl + +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl +])# win32-dll + +AU_DEFUN([AC_LIBTOOL_WIN32_DLL], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +_LT_SET_OPTION([LT_INIT], [win32-dll]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'win32-dll' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) + + +# _LT_ENABLE_SHARED([DEFAULT]) +# ---------------------------- +# implement the --enable-shared flag, and supports the 'shared' and +# 'disable-shared' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_SHARED], +[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([shared], + [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], + [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) + + _LT_DECL([build_libtool_libs], [enable_shared], [0], + [Whether or not to build shared libraries]) +])# _LT_ENABLE_SHARED + +LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) +]) + +AC_DEFUN([AC_DISABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], [disable-shared]) +]) + +AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) +AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_SHARED], []) +dnl AC_DEFUN([AM_DISABLE_SHARED], []) + + + +# _LT_ENABLE_STATIC([DEFAULT]) +# ---------------------------- +# implement the --enable-static flag, and support the 'static' and +# 'disable-static' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_STATIC], +[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], + [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_static=]_LT_ENABLE_STATIC_DEFAULT) + + _LT_DECL([build_old_libs], [enable_static], [0], + [Whether or not to build static libraries]) +])# _LT_ENABLE_STATIC + +LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) +]) + +AC_DEFUN([AC_DISABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], [disable-static]) +]) + +AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) +AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_STATIC], []) +dnl AC_DEFUN([AM_DISABLE_STATIC], []) + + + +# _LT_ENABLE_FAST_INSTALL([DEFAULT]) +# ---------------------------------- +# implement the --enable-fast-install flag, and support the 'fast-install' +# and 'disable-fast-install' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_FAST_INSTALL], +[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([fast-install], + [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], + [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) + +_LT_DECL([fast_install], [enable_fast_install], [0], + [Whether or not to optimize for fast installation])dnl +])# _LT_ENABLE_FAST_INSTALL + +LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) + +# Old names: +AU_DEFUN([AC_ENABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'fast-install' option into LT_INIT's first parameter.]) +]) + +AU_DEFUN([AC_DISABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], [disable-fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'disable-fast-install' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) +dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) + + +# _LT_WITH_AIX_SONAME([DEFAULT]) +# ---------------------------------- +# implement the --with-aix-soname flag, and support the `aix-soname=aix' +# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT +# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'. +m4_define([_LT_WITH_AIX_SONAME], +[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl +shared_archive_member_spec= +case $host,$enable_shared in +power*-*-aix[[5-9]]*,yes) + AC_MSG_CHECKING([which variant of shared library versioning to provide]) + AC_ARG_WITH([aix-soname], + [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], + [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])], + [case $withval in + aix|svr4|both) + ;; + *) + AC_MSG_ERROR([Unknown argument to --with-aix-soname]) + ;; + esac + lt_cv_with_aix_soname=$with_aix_soname], + [AC_CACHE_VAL([lt_cv_with_aix_soname], + [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT) + with_aix_soname=$lt_cv_with_aix_soname]) + AC_MSG_RESULT([$with_aix_soname]) + if test aix != "$with_aix_soname"; then + # For the AIX way of multilib, we name the shared archive member + # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', + # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. + # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, + # the AIX toolchain works better with OBJECT_MODE set (default 32). + if test 64 = "${OBJECT_MODE-32}"; then + shared_archive_member_spec=shr_64 + else + shared_archive_member_spec=shr + fi + fi + ;; +*) + with_aix_soname=aix + ;; +esac + +_LT_DECL([], [shared_archive_member_spec], [0], + [Shared archive member basename, for filename based shared library versioning on AIX])dnl +])# _LT_WITH_AIX_SONAME + +LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])]) + + +# _LT_WITH_PIC([MODE]) +# -------------------- +# implement the --with-pic flag, and support the 'pic-only' and 'no-pic' +# LT_INIT options. +# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'. +m4_define([_LT_WITH_PIC], +[AC_ARG_WITH([pic], + [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], + [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], + [lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for lt_pkg in $withval; do + IFS=$lt_save_ifs + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [pic_mode=m4_default([$1], [default])]) + +_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl +])# _LT_WITH_PIC + +LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) + +# Old name: +AU_DEFUN([AC_LIBTOOL_PICMODE], +[_LT_SET_OPTION([LT_INIT], [pic-only]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'pic-only' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) + +## ----------------- ## +## LTDL_INIT Options ## +## ----------------- ## + +m4_define([_LTDL_MODE], []) +LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], + [m4_define([_LTDL_MODE], [nonrecursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [recursive], + [m4_define([_LTDL_MODE], [recursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [subproject], + [m4_define([_LTDL_MODE], [subproject])]) + +m4_define([_LTDL_TYPE], []) +LT_OPTION_DEFINE([LTDL_INIT], [installable], + [m4_define([_LTDL_TYPE], [installable])]) +LT_OPTION_DEFINE([LTDL_INIT], [convenience], + [m4_define([_LTDL_TYPE], [convenience])]) diff --git a/gl/m4/ltsugar.m4 b/gl/m4/ltsugar.m4 new file mode 100644 index 0000000..902508b --- /dev/null +++ b/gl/m4/ltsugar.m4 @@ -0,0 +1,124 @@ +# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007-2008, 2011-2019, 2021-2022 Free Software +# Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 6 ltsugar.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) + + +# lt_join(SEP, ARG1, [ARG2...]) +# ----------------------------- +# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their +# associated separator. +# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier +# versions in m4sugar had bugs. +m4_define([lt_join], +[m4_if([$#], [1], [], + [$#], [2], [[$2]], + [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) +m4_define([_lt_join], +[m4_if([$#$2], [2], [], + [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) + + +# lt_car(LIST) +# lt_cdr(LIST) +# ------------ +# Manipulate m4 lists. +# These macros are necessary as long as will still need to support +# Autoconf-2.59, which quotes differently. +m4_define([lt_car], [[$1]]) +m4_define([lt_cdr], +[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], + [$#], 1, [], + [m4_dquote(m4_shift($@))])]) +m4_define([lt_unquote], $1) + + +# lt_append(MACRO-NAME, STRING, [SEPARATOR]) +# ------------------------------------------ +# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. +# Note that neither SEPARATOR nor STRING are expanded; they are appended +# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). +# No SEPARATOR is output if MACRO-NAME was previously undefined (different +# than defined and empty). +# +# This macro is needed until we can rely on Autoconf 2.62, since earlier +# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. +m4_define([lt_append], +[m4_define([$1], + m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) + + + +# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) +# ---------------------------------------------------------- +# Produce a SEP delimited list of all paired combinations of elements of +# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list +# has the form PREFIXmINFIXSUFFIXn. +# Needed until we can rely on m4_combine added in Autoconf 2.62. +m4_define([lt_combine], +[m4_if(m4_eval([$# > 3]), [1], + [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl +[[m4_foreach([_Lt_prefix], [$2], + [m4_foreach([_Lt_suffix], + ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, + [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) + + +# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) +# ----------------------------------------------------------------------- +# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited +# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. +m4_define([lt_if_append_uniq], +[m4_ifdef([$1], + [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], + [lt_append([$1], [$2], [$3])$4], + [$5])], + [lt_append([$1], [$2], [$3])$4])]) + + +# lt_dict_add(DICT, KEY, VALUE) +# ----------------------------- +m4_define([lt_dict_add], +[m4_define([$1($2)], [$3])]) + + +# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) +# -------------------------------------------- +m4_define([lt_dict_add_subkey], +[m4_define([$1($2:$3)], [$4])]) + + +# lt_dict_fetch(DICT, KEY, [SUBKEY]) +# ---------------------------------- +m4_define([lt_dict_fetch], +[m4_ifval([$3], + m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), + m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) + + +# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) +# ----------------------------------------------------------------- +m4_define([lt_if_dict_fetch], +[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], + [$5], + [$6])]) + + +# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) +# -------------------------------------------------------------- +m4_define([lt_dict_filter], +[m4_if([$5], [], [], + [lt_join(m4_quote(m4_default([$4], [[, ]])), + lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), + [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl +]) diff --git a/gl/m4/ltversion.m4 b/gl/m4/ltversion.m4 new file mode 100644 index 0000000..b155d0a --- /dev/null +++ b/gl/m4/ltversion.m4 @@ -0,0 +1,24 @@ +# ltversion.m4 -- version numbers -*- Autoconf -*- +# +# Copyright (C) 2004, 2011-2019, 2021-2022 Free Software Foundation, +# Inc. +# Written by Scott James Remnant, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# @configure_input@ + +# serial 4245 ltversion.m4 +# This file is part of GNU Libtool + +m4_define([LT_PACKAGE_VERSION], [2.4.7]) +m4_define([LT_PACKAGE_REVISION], [2.4.7]) + +AC_DEFUN([LTVERSION_VERSION], +[macro_version='2.4.7' +macro_revision='2.4.7' +_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) +_LT_DECL(, macro_revision, 0) +]) diff --git a/gl/m4/lt~obsolete.m4 b/gl/m4/lt~obsolete.m4 new file mode 100644 index 0000000..0f7a875 --- /dev/null +++ b/gl/m4/lt~obsolete.m4 @@ -0,0 +1,99 @@ +# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007, 2009, 2011-2019, 2021-2022 Free +# Software Foundation, Inc. +# Written by Scott James Remnant, 2004. +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 5 lt~obsolete.m4 + +# These exist entirely to fool aclocal when bootstrapping libtool. +# +# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN), +# which have later been changed to m4_define as they aren't part of the +# exported API, or moved to Autoconf or Automake where they belong. +# +# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN +# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us +# using a macro with the same name in our local m4/libtool.m4 it'll +# pull the old libtool.m4 in (it doesn't see our shiny new m4_define +# and doesn't know about Autoconf macros at all.) +# +# So we provide this file, which has a silly filename so it's always +# included after everything else. This provides aclocal with the +# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything +# because those macros already exist, or will be overwritten later. +# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. +# +# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. +# Yes, that means every name once taken will need to remain here until +# we give up compatibility with versions before 1.7, at which point +# we need to keep only those names which we still refer to. + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) + +m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) +m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) +m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])]) +m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])]) +m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])]) +m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])]) +m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])]) +m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])]) +m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])]) +m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])]) +m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])]) +m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])]) +m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])]) +m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])]) +m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])]) +m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])]) +m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])]) +m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])]) +m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], 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[AC_DEFUN([_LT_PROG_F77])]) +m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])]) +m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])]) diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4 new file mode 100644 index 0000000..bc58017 --- /dev/null +++ b/gl/m4/malloc.m4 @@ -0,0 +1,175 @@ +# malloc.m4 serial 29 +dnl Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# This is adapted with modifications from upstream Autoconf here: +# https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=v2.70#n949 +AC_DEFUN([_AC_FUNC_MALLOC_IF], +[ + AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles + AC_CACHE_CHECK([whether malloc (0) returns nonnull], + [ac_cv_func_malloc_0_nonnull], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h> + ]], + [[void *p = malloc (0); + int result = !p; + free (p); + return result;]]) + ], + [ac_cv_func_malloc_0_nonnull=yes], + [ac_cv_func_malloc_0_nonnull=no], + [case "$host_os" in + # Guess yes on platforms where we know the result. + *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \ + | gnu* | *-musl* | midipix* | midnightbsd* \ + | hpux* | solaris* | cygwin* | mingw* | msys* ) + ac_cv_func_malloc_0_nonnull="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_malloc_0_nonnull="$gl_cross_guess_normal" ;; + esac + ]) + ]) + AS_CASE([$ac_cv_func_malloc_0_nonnull], [*yes], [$1], [$2]) +])# _AC_FUNC_MALLOC_IF + +# gl_FUNC_MALLOC_GNU +# ------------------ +# Replace malloc if it is not compatible with GNU libc. +AC_DEFUN([gl_FUNC_MALLOC_GNU], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_MALLOC_POSIX]) + REPLACE_MALLOC_FOR_MALLOC_GNU="$REPLACE_MALLOC_FOR_MALLOC_POSIX" + if test $REPLACE_MALLOC_FOR_MALLOC_GNU = 0; then + _AC_FUNC_MALLOC_IF([], [REPLACE_MALLOC_FOR_MALLOC_GNU=1]) + fi +]) + +# gl_FUNC_MALLOC_PTRDIFF +# ---------------------- +# Test whether malloc (N) reliably fails when N exceeds PTRDIFF_MAX, +# and replace malloc otherwise. +AC_DEFUN([gl_FUNC_MALLOC_PTRDIFF], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF]) + test "$gl_cv_malloc_ptrdiff" = yes || REPLACE_MALLOC_FOR_MALLOC_POSIX=1 +]) + +# Test whether malloc, realloc, calloc refuse to create objects +# larger than what can be expressed in ptrdiff_t. +# Set gl_cv_func_malloc_gnu to yes or no accordingly. +AC_DEFUN([gl_CHECK_MALLOC_PTRDIFF], +[ + AC_CACHE_CHECK([whether malloc is ptrdiff_t safe], + [gl_cv_malloc_ptrdiff], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdint.h> + ]], + [[/* 64-bit ptrdiff_t is so wide that no practical platform + can exceed it. */ + #define WIDE_PTRDIFF (PTRDIFF_MAX >> 31 >> 31 != 0) + + /* On rare machines where size_t fits in ptrdiff_t there + is no problem. */ + #define NARROW_SIZE (SIZE_MAX <= PTRDIFF_MAX) + + /* glibc 2.30 and later malloc refuses to exceed ptrdiff_t + bounds even on 32-bit platforms. We don't know which + non-glibc systems are safe. */ + #define KNOWN_SAFE (2 < __GLIBC__ + (30 <= __GLIBC_MINOR__)) + + #if WIDE_PTRDIFF || NARROW_SIZE || KNOWN_SAFE + return 0; + #else + #error "malloc might not be ptrdiff_t safe" + syntax error + #endif + ]])], + [gl_cv_malloc_ptrdiff=yes], + [gl_cv_malloc_ptrdiff=no]) + ]) +]) + +# gl_FUNC_MALLOC_POSIX +# -------------------- +# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it +# fails, and doesn't mess up with ptrdiff_t overflow), and replace +# malloc if it is not. +AC_DEFUN([gl_FUNC_MALLOC_POSIX], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_MALLOC_PTRDIFF]) + AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) + if test "$gl_cv_func_malloc_posix" = yes; then + AC_DEFINE([HAVE_MALLOC_POSIX], [1], + [Define if malloc, realloc, and calloc set errno on allocation failure.]) + else + REPLACE_MALLOC_FOR_MALLOC_POSIX=1 + fi +]) + +# Test whether malloc, realloc, calloc set errno to ENOMEM on failure. +# Set gl_cv_func_malloc_posix to yes or no accordingly. +AC_DEFUN([gl_CHECK_MALLOC_POSIX], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether malloc, realloc, calloc set errno on failure], + [gl_cv_func_malloc_posix], + [ + dnl It is too dangerous to try to allocate a large amount of memory: + dnl some systems go to their knees when you do that. So assume that + dnl all Unix implementations of the function set errno on failure, + dnl except on those platforms where we have seen 'test-malloc-gnu', + dnl 'test-realloc-gnu', 'test-calloc-gnu' fail. + case "$host_os" in + mingw*) + gl_cv_func_malloc_posix=no ;; + irix* | solaris*) + dnl On IRIX 6.5, the three functions return NULL with errno unset + dnl when the argument is larger than PTRDIFF_MAX. + dnl On Solaris 11.3, the three functions return NULL with errno set + dnl to EAGAIN, not ENOMEM, when the argument is larger than + dnl PTRDIFF_MAX. + dnl Here is a test program: +m4_divert_push([KILL]) +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#define ptrdiff_t long +#ifndef PTRDIFF_MAX +# define PTRDIFF_MAX ((ptrdiff_t) ((1UL << (8 * sizeof (ptrdiff_t) - 1)) - 1)) +#endif + +int main () +{ + void *p; + + fprintf (stderr, "PTRDIFF_MAX = %lu\n", (unsigned long) PTRDIFF_MAX); + + errno = 0; + p = malloc ((unsigned long) PTRDIFF_MAX + 1); + fprintf (stderr, "p=%p errno=%d\n", p, errno); + + errno = 0; + p = calloc (PTRDIFF_MAX / 2 + 1, 2); + fprintf (stderr, "p=%p errno=%d\n", p, errno); + + errno = 0; + p = realloc (NULL, (unsigned long) PTRDIFF_MAX + 1); + fprintf (stderr, "p=%p errno=%d\n", p, errno); + + return 0; +} +m4_divert_pop([KILL]) + gl_cv_func_malloc_posix=no ;; + *) + gl_cv_func_malloc_posix=yes ;; + esac + ]) +]) diff --git a/gl/m4/malloca.m4 b/gl/m4/malloca.m4 new file mode 100644 index 0000000..1d777eb --- /dev/null +++ b/gl/m4/malloca.m4 @@ -0,0 +1,14 @@ +# malloca.m4 serial 2 +dnl Copyright (C) 2003-2004, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_MALLOCA], +[ + dnl Use the autoconf tests for alloca(), but not the AC_SUBSTed variables + dnl @ALLOCA@ and @LTALLOCA@. + dnl gl_FUNC_ALLOCA dnl Already brought in by the module dependencies. + AC_REQUIRE([gl_EEMALLOC]) +]) diff --git a/gl/m4/manywarnings.m4 b/gl/m4/manywarnings.m4 new file mode 100644 index 0000000..a06f26f --- /dev/null +++ b/gl/m4/manywarnings.m4 @@ -0,0 +1,206 @@ +# manywarnings.m4 serial 24 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson + +AC_PREREQ([2.64]) + +# gl_MANYWARN_COMPLEMENT(OUTVAR, LISTVAR, REMOVEVAR) +# -------------------------------------------------- +# Copy LISTVAR to OUTVAR except for the entries in REMOVEVAR. +# Elements separated by whitespace. In set logic terms, the function +# does OUTVAR = LISTVAR \ REMOVEVAR. +AC_DEFUN([gl_MANYWARN_COMPLEMENT], +[ + gl_warn_set= + set x $2; shift + for gl_warn_item + do + case " $3 " in + *" $gl_warn_item "*) + ;; + *) + AS_VAR_APPEND([gl_warn_set], [" $gl_warn_item"]) + ;; + esac + done + $1=$gl_warn_set +]) + +# gl_MANYWARN_ALL_GCC(VARIABLE) +# ----------------------------- +# Add all documented GCC warning parameters to variable VARIABLE. +# Note that you need to test them using gl_WARN_ADD if you want to +# make sure your gcc understands it. +# +# The effects of this macro depend on the current language (_AC_LANG). +AC_DEFUN([gl_MANYWARN_ALL_GCC], +[_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) + +# Specialization for _AC_LANG = C. +AC_DEFUN([gl_MANYWARN_ALL_GCC(C)], +[ + AC_LANG_PUSH([C]) + + dnl First, check for some issues that only occur when combining multiple + dnl gcc warning categories. + AC_REQUIRE([AC_PROG_CC]) + AS_IF([test -n "$GCC"], [ + AC_CACHE_CHECK([whether -Wno-missing-field-initializers is needed], + [gl_cv_cc_nomfi_needed], + [gl_cv_cc_nomfi_needed=no + gl_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Wextra -Werror" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[struct file_data { int desc, name; }; + struct cmp { struct file_data file[1]; }; + void f (struct cmp *r) + { + typedef struct { int a; int b; } s_t; + s_t s1 = { 0, }; + struct cmp cmp = { .file[0].desc = r->file[0].desc + s1.a }; + *r = cmp; + } + ]], + [[]])], + [], + [CFLAGS="$CFLAGS -Wno-missing-field-initializers" + AC_COMPILE_IFELSE([], + [gl_cv_cc_nomfi_needed=yes])]) + CFLAGS="$gl_save_CFLAGS" + ]) + + dnl Next, check if -Werror -Wuninitialized is useful with the + dnl user's choice of $CFLAGS; some versions of gcc warn that it + dnl has no effect if -O is not also used + AC_CACHE_CHECK([whether -Wuninitialized is supported], + [gl_cv_cc_uninitialized_supported], + [gl_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror -Wuninitialized" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[]], [[]])], + [gl_cv_cc_uninitialized_supported=yes], + [gl_cv_cc_uninitialized_supported=no]) + CFLAGS="$gl_save_CFLAGS" + ]) + ]) + + # List all gcc warning categories. + # To compare this list to your installed GCC's, run this Bash command: + # + # comm -3 \ + # <((sed -n 's/^ *\(-[^ 0-9][^ ]*\).*/\1/p' manywarnings.m4; \ + # awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec) | sort) \ + # <(LC_ALL=C gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort) + + $1= + for gl_manywarn_item in -fanalyzer -fstrict-flex-arrays \ + -Wall \ + -Warith-conversion \ + -Wbad-function-cast \ + -Wcast-align=strict \ + -Wdate-time \ + -Wdisabled-optimization \ + -Wdouble-promotion \ + -Wduplicated-branches \ + -Wduplicated-cond \ + -Wextra \ + -Wformat-signedness \ + -Winit-self \ + -Winline \ + -Winvalid-pch \ + -Wlogical-op \ + -Wmissing-declarations \ + -Wmissing-include-dirs \ + -Wmissing-prototypes \ + -Wnested-externs \ + -Wnull-dereference \ + -Wold-style-definition \ + -Wopenmp-simd \ + -Woverlength-strings \ + -Wpacked \ + -Wpointer-arith \ + -Wshadow \ + -Wstack-protector \ + -Wstrict-flex-arrays \ + -Wstrict-overflow \ + -Wstrict-prototypes \ + -Wsuggest-attribute=cold \ + -Wsuggest-attribute=const \ + -Wsuggest-attribute=format \ + -Wsuggest-attribute=malloc \ + -Wsuggest-attribute=noreturn \ + -Wsuggest-attribute=pure \ + -Wsuggest-final-methods \ + -Wsuggest-final-types \ + -Wsync-nand \ + -Wsystem-headers \ + -Wtrampolines \ + -Wuninitialized \ + -Wunknown-pragmas \ + -Wunsafe-loop-optimizations \ + -Wunused-macros \ + -Wvariadic-macros \ + -Wvector-operation-performance \ + -Wvla \ + -Wwrite-strings \ + \ + ; do + AS_VAR_APPEND([$1], [" $gl_manywarn_item"]) + done + + # gcc --help=warnings outputs an unusual form for these options; list + # them here so that the above 'comm' command doesn't report a false match. + AS_VAR_APPEND([$1], [' -Warray-bounds=2']) + AS_VAR_APPEND([$1], [' -Wattribute-alias=2']) + AS_VAR_APPEND([$1], [' -Wbidi-chars=any,ucn']) + AS_VAR_APPEND([$1], [' -Wformat-overflow=2']) + AS_VAR_APPEND([$1], [' -Wformat=2']) + AS_VAR_APPEND([$1], [' -Wformat-truncation=2']) + AS_VAR_APPEND([$1], [' -Wimplicit-fallthrough=5']) + AS_VAR_APPEND([$1], [' -Wshift-overflow=2']) + AS_VAR_APPEND([$1], [' -Wuse-after-free=3']) + AS_VAR_APPEND([$1], [' -Wunused-const-variable=2']) + AS_VAR_APPEND([$1], [' -Wvla-larger-than=4031']) + + # These are needed for older GCC versions. + if test -n "$GCC" && gl_gcc_version=`($CC --version) 2>/dev/null`; then + case $gl_gcc_version in + 'gcc (GCC) '[[0-3]].* | \ + 'gcc (GCC) '4.[[0-7]].*) + AS_VAR_APPEND([$1], [' -fdiagnostics-show-option']) + AS_VAR_APPEND([$1], [' -funit-at-a-time']) + ;; + esac + case $gl_gcc_version in + 'gcc (GCC) '[[0-9]].*) + AS_VAR_APPEND([$1], [' -fno-common']) + ;; + esac + fi + + # Disable specific options as needed. + if test "$gl_cv_cc_nomfi_needed" = yes; then + AS_VAR_APPEND([$1], [' -Wno-missing-field-initializers']) + fi + + if test "$gl_cv_cc_uninitialized_supported" = no; then + AS_VAR_APPEND([$1], [' -Wno-uninitialized']) + fi + + # This warning have too many false alarms in GCC 11.2.1. + # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101713 + AS_VAR_APPEND([$1], [' -Wno-analyzer-malloc-leak']) + + AC_LANG_POP([C]) +]) + +# Specialization for _AC_LANG = C++. +AC_DEFUN([gl_MANYWARN_ALL_GCC(C++)], +[ + gl_MANYWARN_ALL_GCC_CXX_IMPL([$1]) +]) diff --git a/gl/m4/math_h.m4 b/gl/m4/math_h.m4 new file mode 100644 index 0000000..d2e90ff --- /dev/null +++ b/gl/m4/math_h.m4 @@ -0,0 +1,391 @@ +# math_h.m4 serial 125 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_MATH_H], +[ + AC_REQUIRE([gl_MATH_H_DEFAULTS]) + gl_CHECK_NEXT_HEADERS([math.h]) + + AC_CACHE_CHECK([whether NAN macro works], [gl_cv_header_math_nan_works], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]], + [[/* Solaris 10 has a broken definition of NAN. Other platforms + fail to provide NAN, or provide it only in C99 mode; this + test only needs to fail when NAN is provided but wrong. */ + float f = 1.0f; +#ifdef NAN + f = NAN; +#endif + return f == 0;]])], + [gl_cv_header_math_nan_works=yes], + [gl_cv_header_math_nan_works=no])]) + if test $gl_cv_header_math_nan_works = no; then + REPLACE_NAN=1 + fi + AC_CACHE_CHECK([whether HUGE_VAL works], [gl_cv_header_math_huge_val_works], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]], + [[/* Solaris 10 has a broken definition of HUGE_VAL. */ + double d = HUGE_VAL; + return d == 0;]])], + [gl_cv_header_math_huge_val_works=yes], + [gl_cv_header_math_huge_val_works=no])]) + if test $gl_cv_header_math_huge_val_works = no; then + REPLACE_HUGE_VAL=1 + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <math.h>]], + [acosf acosl asinf asinl atanf atanl + cbrt cbrtf cbrtl ceilf ceill copysign copysignf copysignl cosf cosl coshf + expf expl exp2 exp2f exp2l expm1 expm1f expm1l + fabsf fabsl floorf floorl fma fmaf fmal + fmod fmodf fmodl frexpf frexpl hypotf hypotl + ilogb ilogbf ilogbl + ldexpf ldexpl + log logf logl log10 log10f log10l log1p log1pf log1pl log2 log2f log2l + logb logbf logbl + modf modff modfl powf + remainder remainderf remainderl + rint rintf rintl round roundf roundl sinf sinl sinhf sqrtf sqrtl + tanf tanl tanhf trunc truncf truncl]) +]) + +# gl_MATH_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_MATH_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_MATH_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_MATH_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_MATH_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACOSF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACOSL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ASINF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ASINL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ATANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ATANL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ATAN2F]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CBRT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CBRTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CBRTL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CEIL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CEILF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CEILL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPYSIGN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPYSIGNF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPYSIGNL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COSF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COSL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COSHF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXP2]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXP2F]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXP2L]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPM1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPM1F]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPM1L]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FABSF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FABSL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FLOOR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FLOORF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FLOORL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMA]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMAF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMAL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMOD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMODF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FMODL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREXPF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREXP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREXPL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_HYPOT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_HYPOTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_HYPOTL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ILOGB]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ILOGBF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ILOGBL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISFINITE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISINF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISNAN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISNANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISNAND]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISNANL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LDEXPF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LDEXPL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOGF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOGL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG10]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG10F]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG10L]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG1P]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG1PF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG1PL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG2]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG2F]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOG2L]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOGB]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOGBF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOGBL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MODF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MODFF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MODFL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POWF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMAINDER]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMAINDERF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMAINDERL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RINT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RINTL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ROUND]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ROUNDF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ROUNDL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGNBIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SINF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SINL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SINHF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SQRTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SQRTL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TANL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TANHF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNCF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNCL]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_J0], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_J1], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_JN], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_Y0], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_Y1], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_YN], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_MATH_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_MATH_H_DEFAULTS]) +]) + +AC_DEFUN([gl_MATH_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF]) + HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL]) + HAVE_ASINF=1; AC_SUBST([HAVE_ASINF]) + HAVE_ASINL=1; AC_SUBST([HAVE_ASINL]) + HAVE_ATANF=1; AC_SUBST([HAVE_ATANF]) + HAVE_ATANL=1; AC_SUBST([HAVE_ATANL]) + HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F]) + HAVE_CBRT=1; AC_SUBST([HAVE_CBRT]) + HAVE_CBRTF=1; AC_SUBST([HAVE_CBRTF]) + HAVE_CBRTL=1; AC_SUBST([HAVE_CBRTL]) + HAVE_COPYSIGN=1; AC_SUBST([HAVE_COPYSIGN]) + HAVE_COPYSIGNL=1; AC_SUBST([HAVE_COPYSIGNL]) + HAVE_COSF=1; AC_SUBST([HAVE_COSF]) + HAVE_COSL=1; AC_SUBST([HAVE_COSL]) + HAVE_COSHF=1; AC_SUBST([HAVE_COSHF]) + HAVE_EXPF=1; AC_SUBST([HAVE_EXPF]) + HAVE_EXPL=1; AC_SUBST([HAVE_EXPL]) + HAVE_EXPM1=1; AC_SUBST([HAVE_EXPM1]) + HAVE_EXPM1F=1; AC_SUBST([HAVE_EXPM1F]) + HAVE_FABSF=1; AC_SUBST([HAVE_FABSF]) + HAVE_FABSL=1; AC_SUBST([HAVE_FABSL]) + HAVE_FMA=1; AC_SUBST([HAVE_FMA]) + HAVE_FMAF=1; AC_SUBST([HAVE_FMAF]) + HAVE_FMAL=1; AC_SUBST([HAVE_FMAL]) + HAVE_FMODF=1; AC_SUBST([HAVE_FMODF]) + HAVE_FMODL=1; AC_SUBST([HAVE_FMODL]) + HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF]) + HAVE_HYPOTF=1; AC_SUBST([HAVE_HYPOTF]) + HAVE_HYPOTL=1; AC_SUBST([HAVE_HYPOTL]) + HAVE_ILOGB=1; AC_SUBST([HAVE_ILOGB]) + HAVE_ILOGBF=1; AC_SUBST([HAVE_ILOGBF]) + HAVE_ILOGBL=1; AC_SUBST([HAVE_ILOGBL]) + HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF]) + HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND]) + HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL]) + HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF]) + HAVE_LOGF=1; AC_SUBST([HAVE_LOGF]) + HAVE_LOGL=1; AC_SUBST([HAVE_LOGL]) + HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F]) + HAVE_LOG10L=1; AC_SUBST([HAVE_LOG10L]) + HAVE_LOG1P=1; AC_SUBST([HAVE_LOG1P]) + HAVE_LOG1PF=1; AC_SUBST([HAVE_LOG1PF]) + HAVE_LOG1PL=1; AC_SUBST([HAVE_LOG1PL]) + HAVE_LOGBF=1; AC_SUBST([HAVE_LOGBF]) + HAVE_LOGBL=1; AC_SUBST([HAVE_LOGBL]) + HAVE_MODFF=1; AC_SUBST([HAVE_MODFF]) + HAVE_MODFL=1; AC_SUBST([HAVE_MODFL]) + HAVE_POWF=1; AC_SUBST([HAVE_POWF]) + HAVE_REMAINDER=1; AC_SUBST([HAVE_REMAINDER]) + HAVE_REMAINDERF=1; AC_SUBST([HAVE_REMAINDERF]) + HAVE_RINT=1; AC_SUBST([HAVE_RINT]) + HAVE_RINTL=1; AC_SUBST([HAVE_RINTL]) + HAVE_SINF=1; AC_SUBST([HAVE_SINF]) + HAVE_SINL=1; AC_SUBST([HAVE_SINL]) + HAVE_SINHF=1; AC_SUBST([HAVE_SINHF]) + HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF]) + HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL]) + HAVE_TANF=1; AC_SUBST([HAVE_TANF]) + HAVE_TANL=1; AC_SUBST([HAVE_TANL]) + HAVE_TANHF=1; AC_SUBST([HAVE_TANHF]) + HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL]) + HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL]) + HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL]) + HAVE_DECL_CBRTF=1; AC_SUBST([HAVE_DECL_CBRTF]) + HAVE_DECL_CBRTL=1; AC_SUBST([HAVE_DECL_CBRTL]) + HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF]) + HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL]) + HAVE_DECL_COPYSIGNF=1; AC_SUBST([HAVE_DECL_COPYSIGNF]) + HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL]) + HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL]) + HAVE_DECL_EXP2=1; AC_SUBST([HAVE_DECL_EXP2]) + HAVE_DECL_EXP2F=1; AC_SUBST([HAVE_DECL_EXP2F]) + HAVE_DECL_EXP2L=1; AC_SUBST([HAVE_DECL_EXP2L]) + HAVE_DECL_EXPM1L=1; AC_SUBST([HAVE_DECL_EXPM1L]) + HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF]) + HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL]) + HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL]) + HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL]) + HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL]) + HAVE_DECL_LOG10L=1; AC_SUBST([HAVE_DECL_LOG10L]) + HAVE_DECL_LOG2=1; AC_SUBST([HAVE_DECL_LOG2]) + HAVE_DECL_LOG2F=1; AC_SUBST([HAVE_DECL_LOG2F]) + HAVE_DECL_LOG2L=1; AC_SUBST([HAVE_DECL_LOG2L]) + HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB]) + HAVE_DECL_REMAINDER=1; AC_SUBST([HAVE_DECL_REMAINDER]) + HAVE_DECL_REMAINDERL=1; AC_SUBST([HAVE_DECL_REMAINDERL]) + HAVE_DECL_RINTF=1; AC_SUBST([HAVE_DECL_RINTF]) + HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND]) + HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF]) + HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL]) + HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL]) + HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL]) + HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL]) + HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC]) + HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF]) + HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL]) + REPLACE_ACOSF=0; AC_SUBST([REPLACE_ACOSF]) + REPLACE_ASINF=0; AC_SUBST([REPLACE_ASINF]) + REPLACE_ATANF=0; AC_SUBST([REPLACE_ATANF]) + REPLACE_ATAN2F=0; AC_SUBST([REPLACE_ATAN2F]) + REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF]) + REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL]) + REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL]) + REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF]) + REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL]) + REPLACE_COSF=0; AC_SUBST([REPLACE_COSF]) + REPLACE_COSHF=0; AC_SUBST([REPLACE_COSHF]) + REPLACE_EXPF=0; AC_SUBST([REPLACE_EXPF]) + REPLACE_EXPL=0; AC_SUBST([REPLACE_EXPL]) + REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1]) + REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F]) + REPLACE_EXPM1L=0; AC_SUBST([REPLACE_EXPM1L]) + REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2]) + REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L]) + REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL]) + REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR]) + REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF]) + REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL]) + REPLACE_FMA=0; AC_SUBST([REPLACE_FMA]) + REPLACE_FMAF=0; AC_SUBST([REPLACE_FMAF]) + REPLACE_FMAL=0; AC_SUBST([REPLACE_FMAL]) + REPLACE_FMOD=0; AC_SUBST([REPLACE_FMOD]) + REPLACE_FMODF=0; AC_SUBST([REPLACE_FMODF]) + REPLACE_FMODL=0; AC_SUBST([REPLACE_FMODL]) + REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF]) + REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP]) + REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL]) + REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL]) + REPLACE_HYPOT=0; AC_SUBST([REPLACE_HYPOT]) + REPLACE_HYPOTF=0; AC_SUBST([REPLACE_HYPOTF]) + REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL]) + REPLACE_ILOGB=0; AC_SUBST([REPLACE_ILOGB]) + REPLACE_ILOGBF=0; AC_SUBST([REPLACE_ILOGBF]) + REPLACE_ILOGBL=0; AC_SUBST([REPLACE_ILOGBL]) + REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE]) + REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF]) + REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN]) + REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL]) + REPLACE_LOG=0; AC_SUBST([REPLACE_LOG]) + REPLACE_LOGF=0; AC_SUBST([REPLACE_LOGF]) + REPLACE_LOGL=0; AC_SUBST([REPLACE_LOGL]) + REPLACE_LOG10=0; AC_SUBST([REPLACE_LOG10]) + REPLACE_LOG10F=0; AC_SUBST([REPLACE_LOG10F]) + REPLACE_LOG10L=0; AC_SUBST([REPLACE_LOG10L]) + REPLACE_LOG1P=0; AC_SUBST([REPLACE_LOG1P]) + REPLACE_LOG1PF=0; AC_SUBST([REPLACE_LOG1PF]) + REPLACE_LOG1PL=0; AC_SUBST([REPLACE_LOG1PL]) + REPLACE_LOG2=0; AC_SUBST([REPLACE_LOG2]) + REPLACE_LOG2F=0; AC_SUBST([REPLACE_LOG2F]) + REPLACE_LOG2L=0; AC_SUBST([REPLACE_LOG2L]) + REPLACE_LOGB=0; AC_SUBST([REPLACE_LOGB]) + REPLACE_LOGBF=0; AC_SUBST([REPLACE_LOGBF]) + REPLACE_LOGBL=0; AC_SUBST([REPLACE_LOGBL]) + REPLACE_MODF=0; AC_SUBST([REPLACE_MODF]) + REPLACE_MODFF=0; AC_SUBST([REPLACE_MODFF]) + REPLACE_MODFL=0; AC_SUBST([REPLACE_MODFL]) + REPLACE_NAN=0; AC_SUBST([REPLACE_NAN]) + REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER]) + REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF]) + REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL]) + REPLACE_RINTL=0; AC_SUBST([REPLACE_RINTL]) + REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND]) + REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF]) + REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL]) + REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT]) + REPLACE_SIGNBIT_USING_BUILTINS=0; AC_SUBST([REPLACE_SIGNBIT_USING_BUILTINS]) + REPLACE_SINF=0; AC_SUBST([REPLACE_SINF]) + REPLACE_SINHF=0; AC_SUBST([REPLACE_SINHF]) + REPLACE_SQRTF=0; AC_SUBST([REPLACE_SQRTF]) + REPLACE_SQRTL=0; AC_SUBST([REPLACE_SQRTL]) + REPLACE_TANF=0; AC_SUBST([REPLACE_TANF]) + REPLACE_TANHF=0; AC_SUBST([REPLACE_TANHF]) + REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC]) + REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF]) + REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL]) +]) + +# gl_LONG_DOUBLE_VS_DOUBLE +# determines whether 'long double' and 'double' have the same representation. +# Sets variable HAVE_SAME_LONG_DOUBLE_AS_DOUBLE to 0 or 1, and defines +# HAVE_SAME_LONG_DOUBLE_AS_DOUBLE accordingly. +# The currently known platforms where this is the case are: +# Linux/HPPA, Minix 3.1.8, AIX 5, AIX 6 and 7 with xlc, MSVC 9. +AC_DEFUN([gl_LONG_DOUBLE_VS_DOUBLE], +[ + AC_CACHE_CHECK([whether long double and double are the same], + [gl_cv_long_double_equals_double], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <float.h>]], + [[typedef int check[sizeof (long double) == sizeof (double) + && LDBL_MANT_DIG == DBL_MANT_DIG + && LDBL_MAX_EXP == DBL_MAX_EXP + && LDBL_MIN_EXP == DBL_MIN_EXP + ? 1 : -1]; + ]])], + [gl_cv_long_double_equals_double=yes], + [gl_cv_long_double_equals_double=no]) + ]) + if test $gl_cv_long_double_equals_double = yes; then + AC_DEFINE([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE], [1], + [Define to 1 if 'long double' and 'double' have the same representation.]) + HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=1 + else + HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=0 + fi + AC_SUBST([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE]) +]) diff --git a/gl/m4/mbrtowc.m4 b/gl/m4/mbrtowc.m4 new file mode 100644 index 0000000..430e9ad --- /dev/null +++ b/gl/m4/mbrtowc.m4 @@ -0,0 +1,792 @@ +# mbrtowc.m4 serial 43 -*- coding: utf-8 -*- +dnl Copyright (C) 2001-2002, 2004-2005, 2008-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MBRTOWC], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + AC_REQUIRE([gl_PTHREADLIB]) + AC_CHECK_HEADERS_ONCE([threads.h]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + gl_MBSTATE_T_BROKEN + + AC_CHECK_FUNCS_ONCE([mbrtowc]) + if test $ac_cv_func_mbrtowc = no; then + HAVE_MBRTOWC=0 + AC_CHECK_DECLS([mbrtowc],,, [[ + #include <wchar.h> + ]]) + if test $ac_cv_have_decl_mbrtowc = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares mbrtowc() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_MBRTOWC=1 + fi + else + if test $REPLACE_MBSTATE_T = 1; then + REPLACE_MBRTOWC=1 + else + gl_MBRTOWC_NULL_ARG1 + gl_MBRTOWC_NULL_ARG2 + gl_MBRTOWC_RETVAL + gl_MBRTOWC_NUL_RETVAL + gl_MBRTOWC_STORES_INCOMPLETE + gl_MBRTOWC_EMPTY_INPUT + gl_MBRTOWC_C_LOCALE + case "$gl_cv_func_mbrtowc_null_arg1" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_NULL_ARG1_BUG], [1], + [Define if the mbrtowc function has the NULL pwc argument bug.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_null_arg2" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_NULL_ARG2_BUG], [1], + [Define if the mbrtowc function has the NULL string argument bug.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_retval" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_RETVAL_BUG], [1], + [Define if the mbrtowc function returns a wrong return value.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_nul_retval" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_NUL_RETVAL_BUG], [1], + [Define if the mbrtowc function does not return 0 for a NUL character.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_stores_incomplete" in + *no) ;; + *) AC_DEFINE([MBRTOWC_STORES_INCOMPLETE_BUG], [1], + [Define if the mbrtowc function stores a wide character when reporting incomplete input.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_empty_input" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_EMPTY_INPUT_BUG], [1], + [Define if the mbrtowc function does not return (size_t) -2 + for empty input.]) + REPLACE_MBRTOWC=1 + ;; + esac + case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in + *yes) ;; + *) AC_DEFINE([MBRTOWC_IN_C_LOCALE_MAYBE_EILSEQ], [1], + [Define if the mbrtowc function may signal encoding errors in the C locale.]) + REPLACE_MBRTOWC=1 + ;; + esac + fi + fi + if test $REPLACE_MBSTATE_T = 1; then + case "$host_os" in + mingw*) MBRTOWC_LIB= ;; + *) + gl_WEAK_SYMBOLS + case "$gl_cv_have_weak" in + *yes) MBRTOWC_LIB= ;; + *) MBRTOWC_LIB="$LIBPTHREAD" ;; + esac + ;; + esac + else + MBRTOWC_LIB= + fi + dnl MBRTOWC_LIB is expected to be '-pthread' or '-lpthread' on AIX + dnl with gcc or xlc, and empty otherwise. + AC_SUBST([MBRTOWC_LIB]) + dnl For backward compatibility. + LIB_MBRTOWC="$MBRTOWC_LIB" + AC_SUBST([LIB_MBRTOWC]) +]) + +dnl Test whether mbsinit() and mbrtowc() need to be overridden in a way that +dnl redefines the semantics of the given mbstate_t type. +dnl Result is REPLACE_MBSTATE_T. +dnl When this is set to 1, we replace both mbsinit() and mbrtowc(), in order to +dnl avoid inconsistencies. + +AC_DEFUN_ONCE([gl_MBSTATE_T_BROKEN], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + AC_CHECK_FUNCS_ONCE([mbsinit]) + AC_CHECK_FUNCS_ONCE([mbrtowc]) + dnl On native Windows, we know exactly how mbsinit() behaves and don't need + dnl to override it, even if - like on MSVC - mbsinit() is only defined as + dnl an inline function, not as a global function. + if case "$host_os" in + mingw*) true ;; + *) test $ac_cv_func_mbsinit = yes ;; + esac \ + && test $ac_cv_func_mbrtowc = yes; then + gl_MBRTOWC_INCOMPLETE_STATE + gl_MBRTOWC_SANITYCHECK + REPLACE_MBSTATE_T=0 + case "$gl_cv_func_mbrtowc_incomplete_state" in + *yes) ;; + *) REPLACE_MBSTATE_T=1 ;; + esac + case "$gl_cv_func_mbrtowc_sanitycheck" in + *yes) ;; + *) REPLACE_MBSTATE_T=1 ;; + esac + else + REPLACE_MBSTATE_T=1 + fi +]) + +dnl Test whether mbrtowc puts the state into non-initial state when parsing an +dnl incomplete multibyte character. +dnl Result is gl_cv_func_mbrtowc_incomplete_state. + +AC_DEFUN([gl_MBRTOWC_INCOMPLETE_STATE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_JA]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc handles incomplete characters], + [gl_cv_func_mbrtowc_incomplete_state], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on AIX and OSF/1. + aix* | osf*) gl_cv_func_mbrtowc_incomplete_state="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_incomplete_state="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_JA != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) + { + const char input[] = "B\217\253\344\217\251\316er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) + if (mbsinit (&state)) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_incomplete_state=yes], + [gl_cv_func_mbrtowc_incomplete_state=no], + [:]) + else + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + const char input[] = "B\303\274\303\237er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) + if (mbsinit (&state)) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_incomplete_state=yes], + [gl_cv_func_mbrtowc_incomplete_state=no], + [:]) + fi + fi + ]) +]) + +dnl Test whether mbrtowc works not worse than mbtowc. +dnl Result is gl_cv_func_mbrtowc_sanitycheck. + +AC_DEFUN([gl_MBRTOWC_SANITYCHECK], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_ZH_CN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc works as well as mbtowc], + [gl_cv_func_mbrtowc_sanitycheck], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on Solaris 8. + solaris2.8) gl_cv_func_mbrtowc_sanitycheck="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_sanitycheck="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_ZH_CN != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +int main () +{ + /* This fails on Solaris 8: + mbrtowc returns 2, and sets wc to 0x00F0. + mbtowc returns 4 (correct) and sets wc to 0x5EDC. */ + if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) + { + char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 3, 6, &state) != 4 + && mbtowc (&wc, input + 3, 6) == 4) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_sanitycheck=yes], + [gl_cv_func_mbrtowc_sanitycheck=no], + [:]) + fi + ]) +]) + +dnl Test whether mbrtowc supports a NULL pwc argument correctly. +dnl Result is gl_cv_func_mbrtowc_null_arg1. + +AC_DEFUN([gl_MBRTOWC_NULL_ARG1], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc handles a NULL pwc argument], + [gl_cv_func_mbrtowc_null_arg1], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on Solaris. + solaris*) gl_cv_func_mbrtowc_null_arg1="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_null_arg1="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +int main () +{ + int result = 0; + + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + char input[] = "\303\237er"; + mbstate_t state; + wchar_t wc; + size_t ret; + + memset (&state, '\0', sizeof (mbstate_t)); + wc = (wchar_t) 0xBADFACE; + ret = mbrtowc (&wc, input, 5, &state); + if (ret != 2) + result |= 1; + if (!mbsinit (&state)) + result |= 2; + + memset (&state, '\0', sizeof (mbstate_t)); + ret = mbrtowc (NULL, input, 5, &state); + if (ret != 2) /* Solaris 7 fails here: ret is -1. */ + result |= 4; + if (!mbsinit (&state)) + result |= 8; + } + return result; +}]])], + [gl_cv_func_mbrtowc_null_arg1=yes], + [gl_cv_func_mbrtowc_null_arg1=no], + [:]) + fi + ]) +]) + +dnl Test whether mbrtowc supports a NULL string argument correctly. +dnl Result is gl_cv_func_mbrtowc_null_arg2. + +AC_DEFUN([gl_MBRTOWC_NULL_ARG2], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc handles a NULL string argument], + [gl_cv_func_mbrtowc_null_arg2], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on OSF/1. + osf*) gl_cv_func_mbrtowc_null_arg2="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_null_arg2="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + mbstate_t state; + wchar_t wc; + int ret; + + memset (&state, '\0', sizeof (mbstate_t)); + wc = (wchar_t) 0xBADFACE; + mbrtowc (&wc, NULL, 5, &state); + /* Check that wc was not modified. */ + if (wc != (wchar_t) 0xBADFACE) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_null_arg2=yes], + [gl_cv_func_mbrtowc_null_arg2=no], + [:]) + fi + ]) +]) + +dnl Test whether mbrtowc, when parsing the end of a multibyte character, +dnl correctly returns the number of bytes that were needed to complete the +dnl character (not the total number of bytes of the multibyte character). +dnl Result is gl_cv_func_mbrtowc_retval. + +AC_DEFUN([gl_MBRTOWC_RETVAL], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([gt_LOCALE_JA]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether mbrtowc has a correct return value], + [gl_cv_func_mbrtowc_retval], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on HP-UX, Solaris, native Windows. + hpux* | solaris* | mingw*) gl_cv_func_mbrtowc_retval="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_retval="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none \ + || { case "$host_os" in mingw*) true;; *) false;; esac; }; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + int result = 0; + int found_some_locale = 0; + /* This fails on Solaris. */ + if (strcmp ("$LOCALE_FR_UTF8", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + char input[] = "B\303\274\303\237er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) + { + input[1] = '\0'; + if (mbrtowc (&wc, input + 2, 5, &state) != 1) + result |= 1; + } + found_some_locale = 1; + } + /* This fails on HP-UX 11.11. */ + if (strcmp ("$LOCALE_JA", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_JA") != NULL) + { + char input[] = "B\217\253\344\217\251\316er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) + { + input[1] = '\0'; + if (mbrtowc (&wc, input + 2, 5, &state) != 2) + result |= 2; + } + found_some_locale = 1; + } + /* This fails on native Windows. */ + if (setlocale (LC_ALL, "Japanese_Japan.932") != NULL) + { + char input[] = "<\223\372\226\173\214\352>"; /* "<日本語>" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) + { + input[3] = '\0'; + if (mbrtowc (&wc, input + 4, 4, &state) != 1) + result |= 4; + } + found_some_locale = 1; + } + if (setlocale (LC_ALL, "Chinese_Taiwan.950") != NULL) + { + char input[] = "<\244\351\245\273\273\171>"; /* "<日本語>" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) + { + input[3] = '\0'; + if (mbrtowc (&wc, input + 4, 4, &state) != 1) + result |= 8; + } + found_some_locale = 1; + } + if (setlocale (LC_ALL, "Chinese_China.936") != NULL) + { + char input[] = "<\310\325\261\276\325\132>"; /* "<日本語>" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) + { + input[3] = '\0'; + if (mbrtowc (&wc, input + 4, 4, &state) != 1) + result |= 16; + } + found_some_locale = 1; + } + return (found_some_locale ? result : 77); +}]])], + [gl_cv_func_mbrtowc_retval=yes], + [if test $? != 77; then + gl_cv_func_mbrtowc_retval=no + fi + ], + [:]) + fi + ]) +]) + +dnl Test whether mbrtowc, when parsing a NUL character, correctly returns 0. +dnl Result is gl_cv_func_mbrtowc_nul_retval. + +AC_DEFUN([gl_MBRTOWC_NUL_RETVAL], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_ZH_CN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc returns 0 when parsing a NUL character], + [gl_cv_func_mbrtowc_nul_retval], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on Solaris 8 and 9. + solaris2.[89]) gl_cv_func_mbrtowc_nul_retval="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbrtowc_nul_retval="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_ZH_CN != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + /* This fails on Solaris 8 and 9. */ + if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) + { + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "", 1, &state) != 0) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_nul_retval=yes], + [gl_cv_func_mbrtowc_nul_retval=no], + [:]) + fi + ]) +]) + +dnl Test whether mbrtowc stores a wide character when reporting incomplete +dnl input. + +AC_DEFUN([gl_MBRTOWC_STORES_INCOMPLETE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc stores incomplete characters], + [gl_cv_func_mbrtowc_stores_incomplete], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess yes on native Windows. + mingw*) gl_cv_func_mbrtowc_stores_incomplete="guessing yes" ;; + *) gl_cv_func_mbrtowc_stores_incomplete="guessing no" ;; + esac +changequote([,])dnl + case "$host_os" in + mingw*) + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + int result = 0; + if (setlocale (LC_ALL, "French_France.65001") != NULL) + { + wchar_t wc = (wchar_t) 0xBADFACE; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "\303", 1, &state) == (size_t)(-2) + && wc != (wchar_t) 0xBADFACE) + result |= 1; + } + if (setlocale (LC_ALL, "Japanese_Japan.932") != NULL) + { + wchar_t wc = (wchar_t) 0xBADFACE; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "\226", 1, &state) == (size_t)(-2) + && wc != (wchar_t) 0xBADFACE) + result |= 2; + } + if (setlocale (LC_ALL, "Chinese_Taiwan.950") != NULL) + { + wchar_t wc = (wchar_t) 0xBADFACE; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "\245", 1, &state) == (size_t)(-2) + && wc != (wchar_t) 0xBADFACE) + result |= 4; + } + if (setlocale (LC_ALL, "Chinese_China.936") != NULL) + { + wchar_t wc = (wchar_t) 0xBADFACE; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "\261", 1, &state) == (size_t)(-2) + && wc != (wchar_t) 0xBADFACE) + result |= 8; + } + return result; +}]])], + [gl_cv_func_mbrtowc_stores_incomplete=no], + [gl_cv_func_mbrtowc_stores_incomplete=yes], + [:]) + ;; + *) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + wchar_t wc = (wchar_t) 0xBADFACE; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, "\303", 1, &state) == (size_t)(-2) + && wc != (wchar_t) 0xBADFACE) + return 1; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_stores_incomplete=no], + [gl_cv_func_mbrtowc_stores_incomplete=yes], + [:]) + fi + ;; + esac + ]) +]) + +dnl Test whether mbrtowc returns the correct value on empty input. + +AC_DEFUN([gl_MBRTOWC_EMPTY_INPUT], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbrtowc works on empty input], + [gl_cv_func_mbrtowc_empty_input], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <wchar.h> + static wchar_t wc; + static mbstate_t mbs; + int + main (void) + { + return mbrtowc (&wc, "", 0, &mbs) != (size_t) -2; + }]])], + [gl_cv_func_mbrtowc_empty_input=yes], + [gl_cv_func_mbrtowc_empty_input=no], + [case "$host_os" in + # Guess no on AIX and glibc systems. + aix* | *-gnu* | gnu*) gl_cv_func_mbrtowc_empty_input="guessing no" ;; + # Guess no on Android. + linux*-android*) gl_cv_func_mbrtowc_empty_input="guessing no" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_mbrtowc_empty_input="guessing no" ;; + *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; + esac + ]) + ]) +]) + +dnl Test whether mbrtowc reports encoding errors in the C locale. +dnl Although POSIX was never intended to allow this, the GNU C Library +dnl and other implementations do it. See: +dnl https://sourceware.org/bugzilla/show_bug.cgi?id=19932 +dnl POSIX has now clarified it: +dnl <https://pubs.opengroup.org/onlinepubs/9699919799/functions/mbrtowc.html> +dnl says: "In the POSIX locale an [EILSEQ] error cannot occur since all byte +dnl values are valid characters." + +AC_DEFUN([gl_MBRTOWC_C_LOCALE], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether the C locale is free of encoding errors], + [gl_cv_func_mbrtowc_C_locale_sans_EILSEQ], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <limits.h> + #include <locale.h> + #include <wchar.h> + ]], [[ + int i; + char *locale = setlocale (LC_ALL, "C"); + if (! locale) + return 2; + for (i = CHAR_MIN; i <= CHAR_MAX; i++) + { + char c = i; + wchar_t wc; + mbstate_t mbs = { 0, }; + size_t ss = mbrtowc (&wc, &c, 1, &mbs); + if (1 < ss) + return 3; + } + return 0; + ]])], + [gl_cv_func_mbrtowc_C_locale_sans_EILSEQ=yes], + [gl_cv_func_mbrtowc_C_locale_sans_EILSEQ=no], + [case "$host_os" in + # Guess yes on native Windows. + mingw*) gl_cv_func_mbrtowc_C_locale_sans_EILSEQ="guessing yes" ;; + *) gl_cv_func_mbrtowc_C_locale_sans_EILSEQ="$gl_cross_guess_normal" ;; + esac + ]) + ]) +]) + +# Prerequisites of lib/mbrtowc.c and lib/lc-charset-dispatch.c. +AC_DEFUN([gl_PREREQ_MBRTOWC], [ + AC_REQUIRE([AC_C_INLINE]) + : +]) + +# Prerequisites of lib/mbtowc-lock.c. +AC_DEFUN([gl_PREREQ_MBTOWC_LOCK], +[ + gl_VISIBILITY +]) + + +dnl From Paul Eggert + +dnl This is an override of an autoconf macro. + +AC_DEFUN([AC_FUNC_MBRTOWC], +[ + dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60. + AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared], + [gl_cv_func_mbrtowc], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h>]], + [[wchar_t wc; + char const s[] = ""; + size_t n = 1; + mbstate_t state; + return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])], + [gl_cv_func_mbrtowc=yes], + [gl_cv_func_mbrtowc=no])]) + if test $gl_cv_func_mbrtowc = yes; then + AC_DEFINE([HAVE_MBRTOWC], [1], + [Define to 1 if mbrtowc and mbstate_t are properly declared.]) + fi +]) diff --git a/gl/m4/mbsinit.m4 b/gl/m4/mbsinit.m4 new file mode 100644 index 0000000..c388a8b --- /dev/null +++ b/gl/m4/mbsinit.m4 @@ -0,0 +1,44 @@ +# mbsinit.m4 serial 9 +dnl Copyright (C) 2008, 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MBSINIT], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + gl_MBSTATE_T_BROKEN + + AC_CHECK_FUNCS_ONCE([mbsinit]) + if test $ac_cv_func_mbsinit = no; then + HAVE_MBSINIT=0 + AC_CHECK_DECLS([mbsinit],,, [[ + #include <wchar.h> + ]]) + if test $ac_cv_have_decl_mbsinit = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares mbsinit() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_MBSINIT=1 + fi + else + if test $REPLACE_MBSTATE_T = 1; then + REPLACE_MBSINIT=1 + else + dnl On mingw, mbsinit() always returns 1, which is inappropriate for + dnl states produced by mbrtowc() for an incomplete multibyte character + dnl in multibyte locales. + case "$host_os" in + mingw*) REPLACE_MBSINIT=1 ;; + esac + fi + fi +]) + +# Prerequisites of lib/mbsinit.c. +AC_DEFUN([gl_PREREQ_MBSINIT], [ + : +]) diff --git a/gl/m4/mbsrtowcs.m4 b/gl/m4/mbsrtowcs.m4 new file mode 100644 index 0000000..720f727 --- /dev/null +++ b/gl/m4/mbsrtowcs.m4 @@ -0,0 +1,152 @@ +# mbsrtowcs.m4 serial 16 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MBSRTOWCS], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + gl_MBSTATE_T_BROKEN + + AC_CHECK_FUNCS_ONCE([mbsrtowcs]) + if test $ac_cv_func_mbsrtowcs = no; then + HAVE_MBSRTOWCS=0 + AC_CHECK_DECLS([mbsrtowcs],,, [[ + #include <wchar.h> + ]]) + if test $ac_cv_have_decl_mbsrtowcs = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares mbsrtowcs() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_MBSRTOWCS=1 + fi + else + if test $REPLACE_MBSTATE_T = 1; then + REPLACE_MBSRTOWCS=1 + else + gl_MBSRTOWCS_WORKS + case "$gl_cv_func_mbsrtowcs_works" in + *yes) ;; + *) REPLACE_MBSRTOWCS=1 ;; + esac + if test $REPLACE_MBSRTOWCS = 0; then + gl_MBRTOWC_C_LOCALE + case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in + *yes) ;; + *) REPLACE_MBSRTOWCS=1 ;; + esac + fi + fi + fi +]) + +dnl Test whether mbsrtowcs works. +dnl Result is gl_cv_func_mbsrtowcs_works. + +AC_DEFUN([gl_MBSRTOWCS_WORKS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([gt_LOCALE_JA]) + AC_REQUIRE([gt_LOCALE_ZH_CN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether mbsrtowcs works], + [gl_cv_func_mbsrtowcs_works], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on HP-UX, Solaris, mingw. + hpux* | solaris* | mingw*) gl_cv_func_mbsrtowcs_works="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_mbsrtowcs_works="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +int main () +{ + int result = 0; + /* Test whether the function supports a NULL destination argument. + This fails on native Windows. */ + if (strcmp ("$LOCALE_FR", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + const char input[] = "\337er"; + const char *src = input; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbsrtowcs (NULL, &src, 1, &state) != 3 + || src != input) + result |= 1; + } + /* Test whether the function works when started with a conversion state + in non-initial state. This fails on HP-UX 11.11 and Solaris 10. */ + if (strcmp ("$LOCALE_FR_UTF8", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + const char input[] = "B\303\274\303\237er"; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2)) + if (!mbsinit (&state)) + { + const char *src = input + 2; + if (mbsrtowcs (NULL, &src, 10, &state) != 4) + result |= 2; + } + } + if (strcmp ("$LOCALE_JA", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_JA") != NULL) + { + const char input[] = "<\306\374\313\334\270\354>"; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (NULL, input + 3, 1, &state) == (size_t)(-2)) + if (!mbsinit (&state)) + { + const char *src = input + 4; + if (mbsrtowcs (NULL, &src, 10, &state) != 3) + result |= 4; + } + } + if (strcmp ("$LOCALE_ZH_CN", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) + { + const char input[] = "B\250\271\201\060\211\070er"; + mbstate_t state; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2)) + if (!mbsinit (&state)) + { + const char *src = input + 2; + if (mbsrtowcs (NULL, &src, 10, &state) != 4) + result |= 8; + } + } + return result; +}]])], + [gl_cv_func_mbsrtowcs_works=yes], + [gl_cv_func_mbsrtowcs_works=no], + [:]) + fi + ]) +]) + +# Prerequisites of lib/mbsrtowcs.c. +AC_DEFUN([gl_PREREQ_MBSRTOWCS], [ + : +]) diff --git a/gl/m4/mbstate_t.m4 b/gl/m4/mbstate_t.m4 new file mode 100644 index 0000000..dcd66b9 --- /dev/null +++ b/gl/m4/mbstate_t.m4 @@ -0,0 +1,34 @@ +# mbstate_t.m4 serial 14 +dnl Copyright (C) 2000-2002, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# From Paul Eggert. + +# BeOS 5 has <wchar.h> but does not define mbstate_t, +# so you can't declare an object of that type. +# Check for this incompatibility with Standard C. + +# AC_TYPE_MBSTATE_T +# ----------------- +AC_DEFUN([AC_TYPE_MBSTATE_T], +[ + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11 + + AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT[ + #include <wchar.h>]], + [[mbstate_t x; return sizeof x;]])], + [ac_cv_type_mbstate_t=yes], + [ac_cv_type_mbstate_t=no])]) + if test $ac_cv_type_mbstate_t = yes; then + AC_DEFINE([HAVE_MBSTATE_T], [1], + [Define to 1 if <wchar.h> declares mbstate_t.]) + else + AC_DEFINE([mbstate_t], [int], + [Define to a type if <wchar.h> does not define.]) + fi +]) diff --git a/gl/m4/mbtowc.m4 b/gl/m4/mbtowc.m4 new file mode 100644 index 0000000..02ed6eb --- /dev/null +++ b/gl/m4/mbtowc.m4 @@ -0,0 +1,27 @@ +# mbtowc.m4 serial 5 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MBTOWC], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + + gl_CHECK_FUNCS_ANDROID([mbtowc], [[#include <stdlib.h>]]) + if test $ac_cv_func_mbtowc = no; then + HAVE_MBTOWC=0 + case "$gl_cv_onwards_func_mbtowc" in + future*) REPLACE_MBTOWC=1 ;; + esac + else + if false; then + REPLACE_MBTOWC=1 + fi + fi +]) + +# Prerequisites of lib/mbtowc.c. +AC_DEFUN([gl_PREREQ_MBTOWC], [ + : +]) diff --git a/gl/m4/memchr.m4 b/gl/m4/memchr.m4 new file mode 100644 index 0000000..4f1aed0 --- /dev/null +++ b/gl/m4/memchr.m4 @@ -0,0 +1,106 @@ +# memchr.m4 serial 18 +dnl Copyright (C) 2002-2004, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_FUNC_MEMCHR], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl Check for prerequisites for memory fence checks. + gl_FUNC_MMAP_ANON + AC_CHECK_HEADERS_ONCE([sys/mman.h]) + AC_CHECK_FUNCS_ONCE([mprotect]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + # Detect platform-specific bugs in some versions of glibc: + # memchr should not dereference anything with length 0 + # https://bugzilla.redhat.com/show_bug.cgi?id=499689 + # memchr should not dereference overestimated length after a match + # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737 + # https://sourceware.org/bugzilla/show_bug.cgi?id=10162 + # memchr should cast the second argument to 'unsigned char'. + # This bug exists in Android 4.3. + # Assume that memchr works on platforms that lack mprotect. + AC_CACHE_CHECK([whether memchr works], [gl_cv_func_memchr_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <string.h> +#if HAVE_SYS_MMAN_H +# include <fcntl.h> +# include <unistd.h> +# include <sys/types.h> +# include <sys/mman.h> +# ifndef MAP_FILE +# define MAP_FILE 0 +# endif +#endif +]], [[ + int result = 0; + char *fence = NULL; +#if HAVE_SYS_MMAN_H && HAVE_MPROTECT +# if HAVE_MAP_ANONYMOUS + const int flags = MAP_ANONYMOUS | MAP_PRIVATE; + const int fd = -1; +# else /* !HAVE_MAP_ANONYMOUS */ + const int flags = MAP_FILE | MAP_PRIVATE; + int fd = open ("/dev/zero", O_RDONLY, 0666); + if (fd >= 0) +# endif + { + int pagesize = getpagesize (); + char *two_pages = + (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE, + flags, fd, 0); + if (two_pages != (char *)(-1) + && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0) + fence = two_pages + pagesize; + } +#endif + if (fence) + { + /* Test against bugs on glibc systems. */ + if (memchr (fence, 0, 0)) + result |= 1; + strcpy (fence - 9, "12345678"); + if (memchr (fence - 9, 0, 79) != fence - 1) + result |= 2; + if (memchr (fence - 1, 0, 3) != fence - 1) + result |= 4; + /* Test against bug on AIX 7.2. */ + if (memchr (fence - 4, '6', 16) != fence - 4) + result |= 8; + } + /* Test against bug on Android 4.3. */ + { + char input[3]; + input[0] = 'a'; + input[1] = 'b'; + input[2] = 'c'; + if (memchr (input, 0x789abc00 | 'b', 3) != input + 1) + result |= 16; + } + return result; +]])], + [gl_cv_func_memchr_works=yes], + [gl_cv_func_memchr_works=no], + [case "$host_os" in + # Guess no on Android. + linux*-android*) gl_cv_func_memchr_works="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_memchr_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_memchr_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_memchr_works" in + *yes) ;; + *) REPLACE_MEMCHR=1 ;; + esac +]) + +# Prerequisites of lib/memchr.c. +AC_DEFUN([gl_PREREQ_MEMCHR], [ + AC_CHECK_HEADERS([bp-sym.h]) +]) diff --git a/gl/m4/memmem.m4 b/gl/m4/memmem.m4 new file mode 100644 index 0000000..3cf46bc --- /dev/null +++ b/gl/m4/memmem.m4 @@ -0,0 +1,155 @@ +# memmem.m4 serial 29 +dnl Copyright (C) 2002-2004, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Check that memmem is present and functional. +AC_DEFUN([gl_FUNC_MEMMEM_SIMPLE], +[ + dnl Persuade glibc <string.h> to declare memmem(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([memmem]) + if test $ac_cv_func_memmem = yes; then + HAVE_MEMMEM=1 + else + HAVE_MEMMEM=0 + fi + AC_CHECK_DECLS_ONCE([memmem]) + if test $ac_cv_have_decl_memmem = no; then + HAVE_DECL_MEMMEM=0 + else + dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092. + dnl Also check that we handle empty needles correctly. + AC_CACHE_CHECK([whether memmem works], + [gl_cv_func_memmem_works_always], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <string.h> /* for memmem */ +#define P "_EF_BF_BD" +#define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P +#define NEEDLE P P P P P +]], [[ + int result = 0; + if (memmem (HAYSTACK, strlen (HAYSTACK), NEEDLE, strlen (NEEDLE))) + result |= 1; + /* Check for empty needle behavior. */ + { + const char *haystack = "AAA"; + if (memmem (haystack, 3, (const char *) 1, 0) != haystack) + result |= 2; + } + return result; + ]])], + [gl_cv_func_memmem_works_always=yes], + [gl_cv_func_memmem_works_always=no], + [dnl glibc 2.9..2.12 and cygwin 1.7.7 have issue #12092 above. + dnl Also empty needles work on glibc >= 2.1 and cygwin >= 1.7.0. + dnl uClibc is not affected, since it uses different source code. + dnl Assume that it works on all other platforms (even if not linear). + AC_EGREP_CPP([Lucky user], + [ +#include <string.h> /* for __GNU_LIBRARY__ */ +#ifdef __GNU_LIBRARY__ + #include <features.h> + #if ((__GLIBC__ == 2 && ((__GLIBC_MINOR > 0 && __GLIBC_MINOR__ < 9) \ + || __GLIBC_MINOR__ > 12)) \ + || (__GLIBC__ > 2)) \ + || defined __UCLIBC__ + Lucky user + #endif +#elif defined __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7) + Lucky user + #endif +#else + Lucky user +#endif + ], + [gl_cv_func_memmem_works_always="guessing yes"], + [gl_cv_func_memmem_works_always="$gl_cross_guess_normal"]) + ]) + ]) + case "$gl_cv_func_memmem_works_always" in + *yes) ;; + *) + REPLACE_MEMMEM=1 + ;; + esac + fi + gl_PREREQ_MEMMEM +]) # gl_FUNC_MEMMEM_SIMPLE + +dnl Additionally, check that memmem has linear performance characteristics +AC_DEFUN([gl_FUNC_MEMMEM], +[ + AC_REQUIRE([gl_FUNC_MEMMEM_SIMPLE]) + if test $HAVE_DECL_MEMMEM = 1 && test $REPLACE_MEMMEM = 0; then + AC_CACHE_CHECK([whether memmem works in linear time], + [gl_cv_func_memmem_works_fast], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <signal.h> /* for signal */ +#include <string.h> /* for memmem */ +#include <stdlib.h> /* for malloc */ +#include <unistd.h> /* for alarm */ +static void quit (int sig) { _exit (sig + 128); } +]], [[ + int result = 0; + size_t m = 1000000; + char *haystack = (char *) malloc (2 * m + 1); + char *needle = (char *) malloc (m + 1); + /* Failure to compile this test due to missing alarm is okay, + since all such platforms (mingw) also lack memmem. */ + signal (SIGALRM, quit); + alarm (5); + /* Check for quadratic performance. */ + if (haystack && needle) + { + memset (haystack, 'A', 2 * m); + haystack[2 * m] = 'B'; + memset (needle, 'A', m); + needle[m] = 'B'; + if (!memmem (haystack, 2 * m + 1, needle, m + 1)) + result |= 1; + } + /* Free allocated memory, in case some sanitizer is watching. */ + free (haystack); + free (needle); + return result; + ]])], + [gl_cv_func_memmem_works_fast=yes], [gl_cv_func_memmem_works_fast=no], + [dnl Only glibc >= 2.9 and cygwin > 1.7.0 are known to have a + dnl memmem that works in linear time. + AC_EGREP_CPP([Lucky user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9) || (__GLIBC__ > 2)) \ + && !defined __UCLIBC__ + Lucky user + #endif +#endif +#ifdef __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 0) + Lucky user + #endif +#endif + ], + [gl_cv_func_memmem_works_fast="guessing yes"], + [gl_cv_func_memmem_works_fast="$gl_cross_guess_normal"]) + ]) + ]) + case "$gl_cv_func_memmem_works_fast" in + *yes) ;; + *) + REPLACE_MEMMEM=1 + ;; + esac + fi +]) # gl_FUNC_MEMMEM + +# Prerequisites of lib/memmem.c. +AC_DEFUN([gl_PREREQ_MEMMEM], [:]) diff --git a/gl/m4/mempcpy.m4 b/gl/m4/mempcpy.m4 new file mode 100644 index 0000000..612b77b --- /dev/null +++ b/gl/m4/mempcpy.m4 @@ -0,0 +1,29 @@ +# mempcpy.m4 serial 14 +dnl Copyright (C) 2003-2004, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MEMPCPY], +[ + dnl Persuade glibc <string.h> to declare mempcpy(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl The mempcpy() declaration in lib/string.in.h uses 'restrict'. + AC_REQUIRE([AC_C_RESTRICT]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + gl_CHECK_FUNCS_ANDROID([mempcpy], [[#include <string.h>]]) + if test $ac_cv_func_mempcpy = no; then + HAVE_MEMPCPY=0 + case "$gl_cv_onwards_func_mempcpy" in + future*) REPLACE_MEMPCPY=1 ;; + esac + fi +]) + +# Prerequisites of lib/mempcpy.c. +AC_DEFUN([gl_PREREQ_MEMPCPY], [ + : +]) diff --git a/gl/m4/memrchr.m4 b/gl/m4/memrchr.m4 new file mode 100644 index 0000000..7611ac7 --- /dev/null +++ b/gl/m4/memrchr.m4 @@ -0,0 +1,23 @@ +# memrchr.m4 serial 11 +dnl Copyright (C) 2002-2003, 2005-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MEMRCHR], +[ + dnl Persuade glibc <string.h> to declare memrchr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([memrchr]) + if test $ac_cv_have_decl_memrchr = no; then + HAVE_DECL_MEMRCHR=0 + fi + + AC_CHECK_FUNCS([memrchr]) +]) + +# Prerequisites of lib/memrchr.c. +AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) diff --git a/gl/m4/minmax.m4 b/gl/m4/minmax.m4 new file mode 100644 index 0000000..fd09846 --- /dev/null +++ b/gl/m4/minmax.m4 @@ -0,0 +1,44 @@ +# minmax.m4 serial 4 +dnl Copyright (C) 2005, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.53]) + +AC_DEFUN([gl_MINMAX], +[ + AC_REQUIRE([gl_PREREQ_MINMAX]) +]) + +# Prerequisites of lib/minmax.h. +AC_DEFUN([gl_PREREQ_MINMAX], +[ + gl_MINMAX_IN_HEADER([limits.h]) + gl_MINMAX_IN_HEADER([sys/param.h]) +]) + +dnl gl_MINMAX_IN_HEADER(HEADER) +dnl The parameter has to be a literal header name; it cannot be macro, +dnl nor a shell variable. (Because autoheader collects only AC_DEFINE +dnl invocations with a literal macro name.) +AC_DEFUN([gl_MINMAX_IN_HEADER], +[ + m4_pushdef([header], AS_TR_SH([$1])) + m4_pushdef([HEADER], AS_TR_CPP([$1])) + AC_CACHE_CHECK([whether <$1> defines MIN and MAX], + [gl_cv_minmax_in_]header, + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <$1> + int x = MIN (42, 17);]], + [[]])], + [gl_cv_minmax_in_]header[=yes], + [gl_cv_minmax_in_]header[=no])]) + if test $gl_cv_minmax_in_[]header = yes; then + AC_DEFINE([HAVE_MINMAX_IN_]HEADER, 1, + [Define to 1 if <$1> defines the MIN and MAX macros.]) + fi + m4_popdef([HEADER]) + m4_popdef([header]) +]) diff --git a/gl/m4/mkdir.m4 b/gl/m4/mkdir.m4 new file mode 100644 index 0000000..c2bc4da --- /dev/null +++ b/gl/m4/mkdir.m4 @@ -0,0 +1,91 @@ +# serial 18 + +# Copyright (C) 2001, 2003-2004, 2006, 2008-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# On some systems, mkdir ("foo/", 0700) fails because of the trailing slash. +# On others, mkdir ("foo/./", 0700) mistakenly succeeds. +# On such systems, arrange to use a wrapper function. +AC_DEFUN([gl_FUNC_MKDIR], +[dnl + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CACHE_CHECK([whether mkdir handles trailing slash], + [gl_cv_func_mkdir_trailing_slash_works], + [rm -rf conftest.dir + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ + #include <sys/types.h> + #include <sys/stat.h> + ]GL_MDA_DEFINES], + [[return mkdir ("conftest.dir/", 0700);]])], + [gl_cv_func_mkdir_trailing_slash_works=yes], + [gl_cv_func_mkdir_trailing_slash_works=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_mkdir_trailing_slash_works="guessing yes"], + [gl_cv_func_mkdir_trailing_slash_works="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_mkdir_trailing_slash_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.dir + ]) + case "$gl_cv_func_mkdir_trailing_slash_works" in + *yes) ;; + *) + REPLACE_MKDIR=1 + ;; + esac + + AC_CACHE_CHECK([whether mkdir handles trailing dot], + [gl_cv_func_mkdir_trailing_dot_works], + [rm -rf conftest.dir + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ + #include <sys/types.h> + #include <sys/stat.h> + ]GL_MDA_DEFINES], + [[return !mkdir ("conftest.dir/./", 0700);]])], + [gl_cv_func_mkdir_trailing_dot_works=yes], + [gl_cv_func_mkdir_trailing_dot_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_mkdir_trailing_dot_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.dir + ] + ) + case "$gl_cv_func_mkdir_trailing_dot_works" in + *yes) ;; + *) + REPLACE_MKDIR=1 + AC_DEFINE([FUNC_MKDIR_DOT_BUG], [1], [Define to 1 if mkdir mistakenly + creates a directory given with a trailing dot component.]) + ;; + esac +]) diff --git a/gl/m4/mkdtemp.m4 b/gl/m4/mkdtemp.m4 new file mode 100644 index 0000000..f5dd4a8 --- /dev/null +++ b/gl/m4/mkdtemp.m4 @@ -0,0 +1,20 @@ +# mkdtemp.m4 serial 8 +dnl Copyright (C) 2001-2003, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_MKDTEMP], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_CHECK_FUNCS([mkdtemp]) + if test $ac_cv_func_mkdtemp = no; then + HAVE_MKDTEMP=0 + fi +]) + +# Prerequisites of lib/mkdtemp.c +AC_DEFUN([gl_PREREQ_MKDTEMP], +[: +]) diff --git a/gl/m4/mkstemp.m4 b/gl/m4/mkstemp.m4 new file mode 100644 index 0000000..d4a15ea --- /dev/null +++ b/gl/m4/mkstemp.m4 @@ -0,0 +1,87 @@ +#serial 29 + +# Copyright (C) 2001, 2003-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# On some hosts (e.g., HP-UX 10.20, SunOS 4.1.4, Solaris 2.5.1), mkstemp has a +# silly limit that it can create no more than 26 files from a given template. +# Other systems lack mkstemp altogether. +# On OSF1/Tru64 V4.0F, the system-provided mkstemp function can create +# only 32 files per process. +# On some hosts, mkstemp creates files with mode 0666, which is a security +# problem and a violation of POSIX 2008. +# On systems like the above, arrange to use the replacement function. +AC_DEFUN([gl_FUNC_MKSTEMP], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_FUNCS_ONCE([mkstemp]) + if test $ac_cv_func_mkstemp = yes; then + AC_CACHE_CHECK([for working mkstemp], + [gl_cv_func_working_mkstemp], + [ + mkdir conftest.mkstemp + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT + GL_MDA_DEFINES], + [[int result = 0; + int i; + off_t large = (off_t) 4294967295u; + if (large < 0) + large = 2147483647; + umask (0); + for (i = 0; i < 70; i++) + { + char templ[] = "conftest.mkstemp/coXXXXXX"; + int (*mkstemp_function) (char *) = mkstemp; + int fd = mkstemp_function (templ); + if (fd < 0) + result |= 1; + else + { + struct stat st; + if (lseek (fd, large, SEEK_SET) != large) + result |= 2; + if (fstat (fd, &st) < 0) + result |= 4; + else if (st.st_mode & 0077) + result |= 8; + if (close (fd)) + result |= 16; + } + } + return result;]])], + [gl_cv_func_working_mkstemp=yes], + [gl_cv_func_working_mkstemp=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_working_mkstemp="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_working_mkstemp="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_working_mkstemp="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_working_mkstemp="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.mkstemp + ]) + case "$gl_cv_func_working_mkstemp" in + *yes) ;; + *) + REPLACE_MKSTEMP=1 + ;; + esac + else + HAVE_MKSTEMP=0 + fi +]) + +# Prerequisites of lib/mkstemp.c. +AC_DEFUN([gl_PREREQ_MKSTEMP], +[ +]) diff --git a/gl/m4/mmap-anon.m4 b/gl/m4/mmap-anon.m4 new file mode 100644 index 0000000..d07d26e --- /dev/null +++ b/gl/m4/mmap-anon.m4 @@ -0,0 +1,55 @@ +# mmap-anon.m4 serial 12 +dnl Copyright (C) 2005, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Detect how mmap can be used to create anonymous (not file-backed) memory +# mappings. +# - On Linux, AIX, OSF/1, Solaris, Cygwin, Interix, Haiku, both MAP_ANONYMOUS +# and MAP_ANON exist and have the same value. +# - On HP-UX, only MAP_ANONYMOUS exists. +# - On Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, only MAP_ANON exists. +# - On IRIX, neither exists, and a file descriptor opened to /dev/zero must be +# used. + +AC_DEFUN_ONCE([gl_FUNC_MMAP_ANON], +[ + dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + # Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it + # fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is + # irrelevant for anonymous mappings. + AC_CHECK_FUNC([mmap], [gl_have_mmap=yes], [gl_have_mmap=no]) + + # Try to allow MAP_ANONYMOUS. + gl_have_mmap_anonymous=no + if test $gl_have_mmap = yes; then + AC_MSG_CHECKING([for MAP_ANONYMOUS]) + AC_EGREP_CPP([I cannot identify this map], [ +#include <sys/mman.h> +#ifdef MAP_ANONYMOUS + I cannot identify this map +#endif +], + [gl_have_mmap_anonymous=yes]) + if test $gl_have_mmap_anonymous != yes; then + AC_EGREP_CPP([I cannot identify this map], [ +#include <sys/mman.h> +#ifdef MAP_ANON + I cannot identify this map +#endif +], + [AC_DEFINE([MAP_ANONYMOUS], [MAP_ANON], + [Define to a substitute value for mmap()'s MAP_ANONYMOUS flag.]) + gl_have_mmap_anonymous=yes]) + fi + AC_MSG_RESULT([$gl_have_mmap_anonymous]) + if test $gl_have_mmap_anonymous = yes; then + AC_DEFINE([HAVE_MAP_ANONYMOUS], [1], + [Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including + config.h and <sys/mman.h>.]) + fi + fi +]) diff --git a/gl/m4/mode_t.m4 b/gl/m4/mode_t.m4 new file mode 100644 index 0000000..82197c0 --- /dev/null +++ b/gl/m4/mode_t.m4 @@ -0,0 +1,26 @@ +# mode_t.m4 serial 2 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# For using mode_t, it's sufficient to use AC_TYPE_MODE_T and +# include <sys/types.h>. + +# Define PROMOTED_MODE_T to the type that is the result of "default argument +# promotion" (ISO C 6.5.2.2.(6)) of the type mode_t. +AC_DEFUN([gl_PROMOTED_TYPE_MODE_T], +[ + AC_REQUIRE([AC_TYPE_MODE_T]) + AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [ + dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int', + dnl and to itself otherwise. This assumption is not guaranteed by the ISO C + dnl standard, but we don't know of any real-world counterexamples. + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]], + [[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])], + [gl_cv_promoted_mode_t='int'], + [gl_cv_promoted_mode_t='mode_t']) + ]) + AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$gl_cv_promoted_mode_t], + [Define to the type that is the result of default argument promotions of type mode_t.]) +]) diff --git a/gl/m4/msvc-inval.m4 b/gl/m4/msvc-inval.m4 new file mode 100644 index 0000000..8d9d21b --- /dev/null +++ b/gl/m4/msvc-inval.m4 @@ -0,0 +1,19 @@ +# msvc-inval.m4 serial 1 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_MSVC_INVAL], +[ + AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler]) + if test $ac_cv_func__set_invalid_parameter_handler = yes; then + HAVE_MSVC_INVALID_PARAMETER_HANDLER=1 + AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1], + [Define to 1 on MSVC platforms that have the "invalid parameter handler" + concept.]) + else + HAVE_MSVC_INVALID_PARAMETER_HANDLER=0 + fi + AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER]) +]) diff --git a/gl/m4/msvc-nothrow.m4 b/gl/m4/msvc-nothrow.m4 new file mode 100644 index 0000000..0263e49 --- /dev/null +++ b/gl/m4/msvc-nothrow.m4 @@ -0,0 +1,10 @@ +# msvc-nothrow.m4 serial 1 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_MSVC_NOTHROW], +[ + AC_REQUIRE([gl_MSVC_INVAL]) +]) diff --git a/gl/m4/multiarch.m4 b/gl/m4/multiarch.m4 new file mode 100644 index 0000000..3ba5b0f --- /dev/null +++ b/gl/m4/multiarch.m4 @@ -0,0 +1,65 @@ +# multiarch.m4 serial 9 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Determine whether the compiler is or may be producing universal binaries. +# +# On Mac OS X 10.5 and later systems, the user can create libraries and +# executables that work on multiple system types--known as "fat" or +# "universal" binaries--by specifying multiple '-arch' options to the +# compiler but only a single '-arch' option to the preprocessor. Like +# this: +# +# ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ +# CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ +# CPP="gcc -E" CXXCPP="g++ -E" +# +# Detect this situation and set APPLE_UNIVERSAL_BUILD accordingly. + +AC_DEFUN_ONCE([gl_MULTIARCH], +[ + dnl Code similar to autoconf-2.63 AC_C_BIGENDIAN. + AC_CACHE_CHECK([whether the compiler produces multi-arch binaries], + [gl_cv_c_multiarch], + [gl_cv_c_multiarch=no + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifndef __APPLE_CC__ + not a universal capable compiler + #endif + typedef int dummy; + ]])], + [ + dnl Check for potential -arch flags. It is not universal unless + dnl there are at least two -arch flags with different values. + arch= + prev= + for word in ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}; do + if test -n "$prev"; then + case $word in + i?86 | x86_64 | ppc | ppc64 | arm | arm64) + if test -z "$arch" || test "$arch" = "$word"; then + arch="$word" + else + gl_cv_c_multiarch=yes + fi + ;; + esac + prev= + else + if test "x$word" = "x-arch"; then + prev=arch + fi + fi + done + ]) + ]) + if test $gl_cv_c_multiarch = yes; then + APPLE_UNIVERSAL_BUILD=1 + else + APPLE_UNIVERSAL_BUILD=0 + fi + AC_SUBST([APPLE_UNIVERSAL_BUILD]) +]) diff --git a/gl/m4/musl.m4 b/gl/m4/musl.m4 new file mode 100644 index 0000000..e28a3fe --- /dev/null +++ b/gl/m4/musl.m4 @@ -0,0 +1,20 @@ +# musl.m4 serial 4 +dnl Copyright (C) 2019-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Test for musl libc, despite the musl libc authors don't like it +# <https://wiki.musl-libc.org/faq.html> +# <https://lists.gnu.org/archive/html/bug-gnulib/2018-02/msg00079.html>. +# From Bruno Haible. + +AC_DEFUN_ONCE([gl_MUSL_LIBC], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + *-musl* | midipix*) + AC_DEFINE([MUSL_LIBC], [1], [Define to 1 on musl libc.]) + ;; + esac +]) diff --git a/gl/m4/nanosleep.m4 b/gl/m4/nanosleep.m4 new file mode 100644 index 0000000..e21a3e3 --- /dev/null +++ b/gl/m4/nanosleep.m4 @@ -0,0 +1,150 @@ +# serial 43 + +dnl From Jim Meyering. +dnl Check for the nanosleep function. +dnl If not found, use the supplied replacement. +dnl + +# Copyright (C) 1999-2001, 2003-2023 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_NANOSLEEP], +[ + AC_REQUIRE([gl_TIME_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl Persuade glibc and Solaris <time.h> to declare nanosleep. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([alarm]) + + nanosleep_save_libs=$LIBS + + # Solaris 2.5.1 needs -lposix4 to get the nanosleep function. + # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. + NANOSLEEP_LIB= + AC_SUBST([NANOSLEEP_LIB]) + AC_SEARCH_LIBS([nanosleep], [rt posix4], + [test "$ac_cv_search_nanosleep" = "none required" || + NANOSLEEP_LIB=$ac_cv_search_nanosleep]) + if test "x$ac_cv_search_nanosleep" != xno; then + dnl The system has a nanosleep function. + + AC_REQUIRE([gl_MULTIARCH]) + if test $APPLE_UNIVERSAL_BUILD = 1; then + # A universal build on Apple Mac OS X platforms. + # The test result would be 'no (mishandles large arguments)' in 64-bit + # mode but 'yes' in 32-bit mode. But we need a configuration result that + # is valid in both modes. + gl_cv_func_nanosleep='no (mishandles large arguments)' + fi + + AC_CACHE_CHECK([for working nanosleep], + [gl_cv_func_nanosleep], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <errno.h> + #include <limits.h> + #include <signal.h> + #include <time.h> + #include <unistd.h> + #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) + #define TYPE_MAXIMUM(t) \ + ((t) (! TYPE_SIGNED (t) \ + ? (t) -1 \ + : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) + + #if HAVE_DECL_ALARM + static void + check_for_SIGALRM (int sig) + { + if (sig != SIGALRM) + _exit (1); + } + #endif + + int + main () + { + static struct timespec ts_sleep; + static struct timespec ts_remaining; + /* Test for major problems first. */ + if (! nanosleep) + return 2; + ts_sleep.tv_sec = 0; + ts_sleep.tv_nsec = 1; + #if HAVE_DECL_ALARM + { + static struct sigaction act; + act.sa_handler = check_for_SIGALRM; + sigemptyset (&act.sa_mask); + sigaction (SIGALRM, &act, NULL); + alarm (1); + if (nanosleep (&ts_sleep, NULL) != 0) + return 3; + /* Test for a minor problem: the handling of large arguments. */ + ts_sleep.tv_sec = TYPE_MAXIMUM (time_t); + ts_sleep.tv_nsec = 999999999; + alarm (1); + if (nanosleep (&ts_sleep, &ts_remaining) != -1) + return 4; + if (errno != EINTR) + return 5; + if (ts_remaining.tv_sec <= TYPE_MAXIMUM (time_t) - 10) + return 6; + } + #else /* A simpler test for native Windows. */ + if (nanosleep (&ts_sleep, &ts_remaining) < 0) + return 3; + /* Test for 32-bit mingw bug: negative nanosecond values do not + cause failure. */ + ts_sleep.tv_sec = 1; + ts_sleep.tv_nsec = -1; + if (nanosleep (&ts_sleep, &ts_remaining) != -1) + return 7; + #endif + return 0; + }]])], + [gl_cv_func_nanosleep=yes], + [case $? in + 4|5|6) gl_cv_func_nanosleep='no (mishandles large arguments)' ;; + 7) gl_cv_func_nanosleep='no (mishandles negative tv_nsec)' ;; + *) gl_cv_func_nanosleep=no ;; + esac], + [case "$host_os" in + linux*) # Guess it halfway works when the kernel is Linux. + gl_cv_func_nanosleep='guessing no (mishandles large arguments)' ;; + mingw*) # Guess no on native Windows. + gl_cv_func_nanosleep='guessing no' ;; + *) # If we don't know, obey --enable-cross-guesses. + gl_cv_func_nanosleep="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_nanosleep" in + *yes) + REPLACE_NANOSLEEP=0 + ;; + *) + REPLACE_NANOSLEEP=1 + case "$gl_cv_func_nanosleep" in + *"mishandles large arguments"*) + AC_DEFINE([HAVE_BUG_BIG_NANOSLEEP], [1], + [Define to 1 if nanosleep mishandles large arguments.]) + ;; + esac + ;; + esac + else + HAVE_NANOSLEEP=0 + fi + LIBS=$nanosleep_save_libs + + # For backward compatibility. + LIB_NANOSLEEP="$NANOSLEEP_LIB" + AC_SUBST([LIB_NANOSLEEP]) +]) diff --git a/gl/m4/nl_langinfo.m4 b/gl/m4/nl_langinfo.m4 new file mode 100644 index 0000000..7648d52 --- /dev/null +++ b/gl/m4/nl_langinfo.m4 @@ -0,0 +1,80 @@ +# nl_langinfo.m4 serial 11 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_NL_LANGINFO], +[ + AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) + AC_REQUIRE([gl_LANGINFO_H]) + gl_CHECK_FUNCS_ANDROID([nl_langinfo], [[#include <langinfo.h>]]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_FUNC_SETLOCALE_NULL]) + AC_REQUIRE([gl_PTHREADLIB]) + AC_CHECK_HEADERS_ONCE([threads.h]) + if test $ac_cv_func_nl_langinfo = yes; then + # On Irix 6.5, YESEXPR is defined, but nl_langinfo(YESEXPR) is broken. + AC_CACHE_CHECK([whether YESEXPR works], + [gl_cv_func_nl_langinfo_yesexpr_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[#include <langinfo.h> +]], [[return !*nl_langinfo(YESEXPR); +]])], + [gl_cv_func_nl_langinfo_yesexpr_works=yes], + [gl_cv_func_nl_langinfo_yesexpr_works=no], + [ + case "$host_os" in + # Guess no on irix systems. + irix*) gl_cv_func_nl_langinfo_yesexpr_works="guessing no";; + # Guess yes elsewhere. + *) gl_cv_func_nl_langinfo_yesexpr_works="guessing yes";; + esac + ]) + ]) + case $gl_cv_func_nl_langinfo_yesexpr_works in + *yes) FUNC_NL_LANGINFO_YESEXPR_WORKS=1 ;; + *) FUNC_NL_LANGINFO_YESEXPR_WORKS=0 ;; + esac + AC_DEFINE_UNQUOTED([FUNC_NL_LANGINFO_YESEXPR_WORKS], + [$FUNC_NL_LANGINFO_YESEXPR_WORKS], + [Define to 1 if nl_langinfo (YESEXPR) returns a non-empty string.]) + # On Solaris 10 and Solaris 11.3, nl_langinfo is not multithread-safe. + case "$host_os" in + solaris*) NL_LANGINFO_MTSAFE=0 ;; + *) NL_LANGINFO_MTSAFE=1 ;; + esac + AC_DEFINE_UNQUOTED([NL_LANGINFO_MTSAFE], [$NL_LANGINFO_MTSAFE], + [Define to 1 if nl_langinfo is multithread-safe.]) + if test $HAVE_LANGINFO_CODESET = 1 \ + && test $HAVE_LANGINFO_T_FMT_AMPM = 1 \ + && test $HAVE_LANGINFO_ALTMON = 1 \ + && test $HAVE_LANGINFO_ERA = 1 \ + && test $FUNC_NL_LANGINFO_YESEXPR_WORKS = 1 \ + && test $NL_LANGINFO_MTSAFE = 1; then + : + else + REPLACE_NL_LANGINFO=1 + AC_DEFINE([REPLACE_NL_LANGINFO], [1], + [Define if nl_langinfo exists but is overridden by gnulib.]) + fi + else + HAVE_NL_LANGINFO=0 + case "$gl_cv_onwards_func_nl_langinfo" in + future*) REPLACE_NL_LANGINFO=1 ;; + esac + fi + if test $HAVE_NL_LANGINFO = 0 || test $HAVE_LANGINFO_CODESET = 0; then + LIB_NL_LANGINFO="$SETLOCALE_NULL_LIB" + else + LIB_NL_LANGINFO= + fi + dnl LIB_NL_LANGINFO is expected to be empty everywhere. + AC_SUBST([LIB_NL_LANGINFO]) +]) + +# Prerequisites of lib/nl_langinfo-lock.c. +AC_DEFUN([gl_PREREQ_NL_LANGINFO_LOCK], +[ + gl_VISIBILITY +]) diff --git a/gl/m4/nls.m4 b/gl/m4/nls.m4 new file mode 100644 index 0000000..8f8a147 --- /dev/null +++ b/gl/m4/nls.m4 @@ -0,0 +1,32 @@ +# nls.m4 serial 5 (gettext-0.18) +dnl Copyright (C) 1995-2003, 2005-2006, 2008-2013 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. +dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003. + +AC_PREREQ([2.50]) + +AC_DEFUN([AM_NLS], +[ + AC_MSG_CHECKING([whether NLS is requested]) + dnl Default is enabled NLS + AC_ARG_ENABLE([nls], + [ --disable-nls do not use Native Language Support], + USE_NLS=$enableval, USE_NLS=yes) + AC_MSG_RESULT([$USE_NLS]) + AC_SUBST([USE_NLS]) +]) diff --git a/gl/m4/nocrash.m4 b/gl/m4/nocrash.m4 new file mode 100644 index 0000000..6a76638 --- /dev/null +++ b/gl/m4/nocrash.m4 @@ -0,0 +1,131 @@ +# nocrash.m4 serial 5 +dnl Copyright (C) 2005, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Based on libsigsegv, from Bruno Haible and Paolo Bonzini. + +AC_PREREQ([2.13]) + +dnl Expands to some code for use in .c programs that will cause the configure +dnl test to exit instead of crashing. This is useful to avoid triggering +dnl action from a background debugger and to avoid core dumps. +dnl Usage: ... +dnl ]GL_NOCRASH[ +dnl ... +dnl int main() { nocrash_init(); ... } +AC_DEFUN([GL_NOCRASH],[[ +#include <stdlib.h> +#if defined __MACH__ && defined __APPLE__ +/* Avoid a crash on Mac OS X. */ +#include <mach/mach.h> +#include <mach/mach_error.h> +#include <mach/thread_status.h> +#include <mach/exception.h> +#include <mach/task.h> +#include <pthread.h> +/* The exception port on which our thread listens. */ +static mach_port_t our_exception_port; +/* The main function of the thread listening for exceptions of type + EXC_BAD_ACCESS. */ +static void * +mach_exception_thread (void *arg) +{ + /* Buffer for a message to be received. */ + struct { + mach_msg_header_t head; + mach_msg_body_t msgh_body; + char data[1024]; + } msg; + mach_msg_return_t retval; + /* Wait for a message on the exception port. */ + retval = mach_msg (&msg.head, MACH_RCV_MSG | MACH_RCV_LARGE, 0, sizeof (msg), + our_exception_port, MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); + if (retval != MACH_MSG_SUCCESS) + abort (); + exit (1); +} +static void +nocrash_init (void) +{ + mach_port_t self = mach_task_self (); + /* Allocate a port on which the thread shall listen for exceptions. */ + if (mach_port_allocate (self, MACH_PORT_RIGHT_RECEIVE, &our_exception_port) + == KERN_SUCCESS) { + /* See https://web.mit.edu/darwin/src/modules/xnu/osfmk/man/mach_port_insert_right.html. */ + if (mach_port_insert_right (self, our_exception_port, our_exception_port, + MACH_MSG_TYPE_MAKE_SEND) + == KERN_SUCCESS) { + /* The exceptions we want to catch. Only EXC_BAD_ACCESS is interesting + for us. */ + exception_mask_t mask = EXC_MASK_BAD_ACCESS; + /* Create the thread listening on the exception port. */ + pthread_attr_t attr; + pthread_t thread; + if (pthread_attr_init (&attr) == 0 + && pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED) == 0 + && pthread_create (&thread, &attr, mach_exception_thread, NULL) == 0) { + pthread_attr_destroy (&attr); + /* Replace the exception port info for these exceptions with our own. + Note that we replace the exception port for the entire task, not only + for a particular thread. This has the effect that when our exception + port gets the message, the thread specific exception port has already + been asked, and we don't need to bother about it. + See https://web.mit.edu/darwin/src/modules/xnu/osfmk/man/task_set_exception_ports.html. */ + task_set_exception_ports (self, mask, our_exception_port, + EXCEPTION_DEFAULT, MACHINE_THREAD_STATE); + } + } + } +} +#elif defined _WIN32 && ! defined __CYGWIN__ +/* Avoid a crash on native Windows. */ +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#include <winerror.h> +static LONG WINAPI +exception_filter (EXCEPTION_POINTERS *ExceptionInfo) +{ + switch (ExceptionInfo->ExceptionRecord->ExceptionCode) + { + case EXCEPTION_ACCESS_VIOLATION: + case EXCEPTION_IN_PAGE_ERROR: + case EXCEPTION_STACK_OVERFLOW: + case EXCEPTION_GUARD_PAGE: + case EXCEPTION_PRIV_INSTRUCTION: + case EXCEPTION_ILLEGAL_INSTRUCTION: + case EXCEPTION_DATATYPE_MISALIGNMENT: + case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: + case EXCEPTION_NONCONTINUABLE_EXCEPTION: + exit (1); + } + return EXCEPTION_CONTINUE_SEARCH; +} +static void +nocrash_init (void) +{ + SetUnhandledExceptionFilter ((LPTOP_LEVEL_EXCEPTION_FILTER) exception_filter); +} +#else +/* Avoid a crash on POSIX systems. */ +#include <signal.h> +#include <unistd.h> +/* A POSIX signal handler. */ +static void +exception_handler (int sig) +{ + _exit (1); +} +static void +nocrash_init (void) +{ +#ifdef SIGSEGV + signal (SIGSEGV, exception_handler); +#endif +#ifdef SIGBUS + signal (SIGBUS, exception_handler); +#endif +} +#endif +]]) diff --git a/gl/m4/nonblocking.m4 b/gl/m4/nonblocking.m4 new file mode 100644 index 0000000..f63d2ae --- /dev/null +++ b/gl/m4/nonblocking.m4 @@ -0,0 +1,29 @@ +# nonblocking.m4 serial 3 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Tests whether non-blocking I/O is natively supported by read(), write(). +dnl Sets gl_cv_have_nonblocking. +dnl Also tests whether open() supports O_NONBLOCK. +dnl Sets gl_cv_have_open_O_NONBLOCK. +AC_DEFUN([gl_NONBLOCKING_IO], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_NONBLOCKING_IO_BODY]) +]) + +AC_DEFUN([gl_NONBLOCKING_IO_BODY], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) gl_cv_have_nonblocking=no ;; + *) gl_cv_have_nonblocking=yes ;; + esac + case "$host_os" in + mingw*) gl_cv_have_open_O_NONBLOCK=no ;; + *) gl_cv_have_open_O_NONBLOCK=yes ;; + esac +]) diff --git a/gl/m4/off_t.m4 b/gl/m4/off_t.m4 new file mode 100644 index 0000000..880f347 --- /dev/null +++ b/gl/m4/off_t.m4 @@ -0,0 +1,18 @@ +# off_t.m4 serial 1 +dnl Copyright (C) 2012-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Check whether to override the 'off_t' type. +dnl Set WINDOWS_64_BIT_OFF_T. + +AC_DEFUN([gl_TYPE_OFF_T], +[ + m4_ifdef([gl_LARGEFILE], [ + AC_REQUIRE([gl_LARGEFILE]) + ], [ + WINDOWS_64_BIT_OFF_T=0 + ]) + AC_SUBST([WINDOWS_64_BIT_OFF_T]) +]) diff --git a/gl/m4/open-cloexec.m4 b/gl/m4/open-cloexec.m4 new file mode 100644 index 0000000..fd572fc --- /dev/null +++ b/gl/m4/open-cloexec.m4 @@ -0,0 +1,21 @@ +# Test whether O_CLOEXEC is defined. + +dnl Copyright 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_PREPROC_O_CLOEXEC], +[ + AC_CACHE_CHECK([for O_CLOEXEC], + [gl_cv_macro_O_CLOEXEC], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <fcntl.h> + #ifndef O_CLOEXEC + choke me; + #endif + ]], + [[return O_CLOEXEC;]])], + [gl_cv_macro_O_CLOEXEC=yes], + [gl_cv_macro_O_CLOEXEC=no])]) +]) diff --git a/gl/m4/open-slash.m4 b/gl/m4/open-slash.m4 new file mode 100644 index 0000000..1f731f8 --- /dev/null +++ b/gl/m4/open-slash.m4 @@ -0,0 +1,60 @@ +# open-slash.m4 serial 2 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Tests whether open() and creat() recognize a trailing slash. +dnl Sets gl_cv_func_open_slash. +AC_DEFUN([gl_OPEN_TRAILING_SLASH_BUG], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl open("foo/") should not create a file when the file name has a + dnl trailing slash. FreeBSD only has the problem on symlinks. + AC_CHECK_FUNCS_ONCE([lstat]) + AC_CACHE_CHECK([whether open recognizes a trailing slash], + [gl_cv_func_open_slash], + [# Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + touch conftest.tmp + ln -s conftest.tmp conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <fcntl.h> +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +]GL_MDA_DEFINES[ +int main () +{ + int result = 0; +#if HAVE_LSTAT + if (open ("conftest.lnk/", O_RDONLY) != -1) + result |= 1; +#endif + if (open ("conftest.sl/", O_CREAT, 0600) >= 0) + result |= 2; + return result; +}]])], + [gl_cv_func_open_slash=yes], + [gl_cv_func_open_slash=no], + [ +changequote(,)dnl + case "$host_os" in + freebsd* | aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) + gl_cv_func_open_slash="guessing no" ;; + *) + gl_cv_func_open_slash="guessing yes" ;; + esac +changequote([,])dnl + ]) + rm -f conftest.sl conftest.tmp conftest.lnk + ]) + case "$gl_cv_func_open_slash" in + *no) + AC_DEFINE([OPEN_TRAILING_SLASH_BUG], [1], + [Define to 1 if open() fails to recognize a trailing slash.]) + ;; + esac +]) diff --git a/gl/m4/open.m4 b/gl/m4/open.m4 new file mode 100644 index 0000000..94fa2bb --- /dev/null +++ b/gl/m4/open.m4 @@ -0,0 +1,56 @@ +# open.m4 serial 15 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_OPEN], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) + case "$host_os" in + mingw* | pw*) + REPLACE_OPEN=1 + ;; + *) + dnl open("foo/") should not create a file when the file name has a + dnl trailing slash. FreeBSD only has the problem on symlinks. + AC_CHECK_FUNCS_ONCE([lstat]) + if test "$gl_cv_macro_O_CLOEXEC" != yes; then + REPLACE_OPEN=1 + fi + gl_OPEN_TRAILING_SLASH_BUG + case "$gl_cv_func_open_slash" in + *no) + REPLACE_OPEN=1 + ;; + esac + ;; + esac + dnl Replace open() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + if test $REPLACE_OPEN = 0; then + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_OPEN=1 + fi + fi + ]) + dnl Replace open() for supporting the gnulib-defined O_NONBLOCK flag. + m4_ifdef([gl_NONBLOCKING_IO], [ + if test $REPLACE_OPEN = 0; then + gl_NONBLOCKING_IO + if test $gl_cv_have_open_O_NONBLOCK != yes; then + REPLACE_OPEN=1 + fi + fi + ]) +]) + +# Prerequisites of lib/open.c. +AC_DEFUN([gl_PREREQ_OPEN], +[ + AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T]) + : +]) diff --git a/gl/m4/openat.m4 b/gl/m4/openat.m4 new file mode 100644 index 0000000..bbbcad8 --- /dev/null +++ b/gl/m4/openat.m4 @@ -0,0 +1,38 @@ +# serial 46 +# See if we need to use our replacement for Solaris' openat et al functions. + +dnl Copyright (C) 2004-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Jim Meyering. + +AC_DEFUN([gl_FUNC_OPENAT], +[ + AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([openat]) + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) + case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink+$gl_cv_macro_O_CLOEXEC in + yes+*yes+yes) + ;; + yes+*) + # Solaris 10 lacks O_CLOEXEC. + # Solaris 9 has *at functions, but uniformly mishandles trailing + # slash in all of them. + REPLACE_OPENAT=1 + ;; + *) + HAVE_OPENAT=0 + ;; + esac +]) + +# Prerequisites of lib/openat.c. +AC_DEFUN([gl_PREREQ_OPENAT], +[ + AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T]) + : +]) diff --git a/gl/m4/opendir.m4 b/gl/m4/opendir.m4 new file mode 100644 index 0000000..2e9be76 --- /dev/null +++ b/gl/m4/opendir.m4 @@ -0,0 +1,35 @@ +# opendir.m4 serial 6 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_OPENDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_FUNCS([opendir]) + if test $ac_cv_func_opendir = no; then + HAVE_OPENDIR=0 + else + dnl Replace opendir() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_OPENDIR=1 + fi + dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced + dnl by gnulib. + case $host_os in + os2*) REPLACE_OPENDIR=1 ;; + esac + dnl Replace opendir() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + REPLACE_OPENDIR=1 + fi + ]) + fi +]) diff --git a/gl/m4/pathmax.m4 b/gl/m4/pathmax.m4 new file mode 100644 index 0000000..6d47d2c --- /dev/null +++ b/gl/m4/pathmax.m4 @@ -0,0 +1,42 @@ +# pathmax.m4 serial 11 +dnl Copyright (C) 2002-2003, 2005-2006, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_PATHMAX], +[ + dnl Prerequisites of lib/pathmax.h. + AC_CHECK_HEADERS_ONCE([sys/param.h]) +]) + +# Expands to a piece of C program that defines PATH_MAX in the same way as +# "pathmax.h" will do. +AC_DEFUN([gl_PATHMAX_SNIPPET], [[ +/* Arrange to define PATH_MAX, like "pathmax.h" does. */ +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +#include <limits.h> +#if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN +# include <sys/param.h> +#endif +#if !defined PATH_MAX && defined MAXPATHLEN +# define PATH_MAX MAXPATHLEN +#endif +#ifdef __hpux +# undef PATH_MAX +# define PATH_MAX 1024 +#endif +#if defined _WIN32 && ! defined __CYGWIN__ +# undef PATH_MAX +# define PATH_MAX 260 +#endif +]]) + +# Prerequisites of gl_PATHMAX_SNIPPET. +AC_DEFUN([gl_PATHMAX_SNIPPET_PREREQ], +[ + AC_CHECK_HEADERS_ONCE([unistd.h sys/param.h]) +]) diff --git a/gl/m4/pipe.m4 b/gl/m4/pipe.m4 new file mode 100644 index 0000000..1ad6688 --- /dev/null +++ b/gl/m4/pipe.m4 @@ -0,0 +1,15 @@ +# pipe.m4 serial 2 +dnl Copyright (C) 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_PIPE], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + AC_CHECK_FUNCS_ONCE([pipe]) + if test $ac_cv_func_pipe != yes; then + HAVE_PIPE=0 + fi +]) diff --git a/gl/m4/po.m4 b/gl/m4/po.m4 new file mode 100644 index 0000000..1c70b6c --- /dev/null +++ b/gl/m4/po.m4 @@ -0,0 +1,453 @@ +# po.m4 serial 21 (gettext-0.18.3) +dnl Copyright (C) 1995-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000. +dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003. + +AC_PREREQ([2.60]) + +dnl Checks for all prerequisites of the po subdirectory. +AC_DEFUN([AM_PO_SUBDIRS], +[ + AC_REQUIRE([AC_PROG_MAKE_SET])dnl + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AC_PROG_MKDIR_P])dnl + AC_REQUIRE([AC_PROG_SED])dnl + AC_REQUIRE([AM_NLS])dnl + + dnl Release version of the gettext macros. This is used to ensure that + dnl the gettext macros and po/Makefile.in.in are in sync. + AC_SUBST([GETTEXT_MACRO_VERSION], [0.18]) + + dnl Perform the following tests also if --disable-nls has been given, + dnl because they are needed for "make dist" to work. + + dnl Search for GNU msgfmt in the PATH. + dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions. + dnl The second test excludes FreeBSD msgfmt. + AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, + [$ac_dir/$ac_word --statistics /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 && + (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + AC_PATH_PROG([GMSGFMT], [gmsgfmt], [$MSGFMT]) + + dnl Test whether it is GNU msgfmt >= 0.15. +changequote(,)dnl + case `$MSGFMT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in + '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) MSGFMT_015=: ;; + *) MSGFMT_015=$MSGFMT ;; + esac +changequote([,])dnl + AC_SUBST([MSGFMT_015]) +changequote(,)dnl + case `$GMSGFMT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in + '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) GMSGFMT_015=: ;; + *) GMSGFMT_015=$GMSGFMT ;; + esac +changequote([,])dnl + AC_SUBST([GMSGFMT_015]) + + dnl Search for GNU xgettext 0.12 or newer in the PATH. + dnl The first test excludes Solaris xgettext and early GNU xgettext versions. + dnl The second test excludes FreeBSD xgettext. + AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, + [$ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 && + (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + dnl Remove leftover from FreeBSD xgettext call. + rm -f messages.po + + dnl Test whether it is GNU xgettext >= 0.15. +changequote(,)dnl + case `$XGETTEXT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in + '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) XGETTEXT_015=: ;; + *) XGETTEXT_015=$XGETTEXT ;; + esac +changequote([,])dnl + AC_SUBST([XGETTEXT_015]) + + dnl Search for GNU msgmerge 0.11 or newer in the PATH. + AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge, + [$ac_dir/$ac_word --update -q /dev/null /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1], :) + + dnl Installation directories. + dnl Autoconf >= 2.60 defines localedir. For older versions of autoconf, we + dnl have to define it here, so that it can be used in po/Makefile. + test -n "$localedir" || localedir='${datadir}/locale' + AC_SUBST([localedir]) + + dnl Support for AM_XGETTEXT_OPTION. + test -n "${XGETTEXT_EXTRA_OPTIONS+set}" || XGETTEXT_EXTRA_OPTIONS= + AC_SUBST([XGETTEXT_EXTRA_OPTIONS]) + + AC_CONFIG_COMMANDS([po-directories], [[ + for ac_file in $CONFIG_FILES; do + # Support "outfile[:infile[:infile...]]" + case "$ac_file" in + *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; + esac + # PO directories have a Makefile.in generated from Makefile.in.in. + case "$ac_file" in */Makefile.in) + # Adjust a relative srcdir. + ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` + ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'` + ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` + # In autoconf-2.13 it is called $ac_given_srcdir. + # In autoconf-2.50 it is called $srcdir. + test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" + case "$ac_given_srcdir" in + .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; + /*) top_srcdir="$ac_given_srcdir" ;; + *) top_srcdir="$ac_dots$ac_given_srcdir" ;; + esac + # Treat a directory as a PO directory if and only if it has a + # POTFILES.in file. This allows packages to have multiple PO + # directories under different names or in different locations. + if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then + rm -f "$ac_dir/POTFILES" + test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES" + gt_tab=`printf '\t'` + cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ${gt_tab}]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES" + POMAKEFILEDEPS="POTFILES.in" + # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend + # on $ac_dir but don't depend on user-specified configuration + # parameters. + if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then + # The LINGUAS file contains the set of available languages. + if test -n "$OBSOLETE_ALL_LINGUAS"; then + test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete" + fi + ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"` + # Hide the ALL_LINGUAS assignment from automake < 1.5. + eval 'ALL_LINGUAS''=$ALL_LINGUAS_' + POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS" + else + # The set of available languages was given in configure.in. + # Hide the ALL_LINGUAS assignment from automake < 1.5. + eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS' + fi + # Compute POFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po) + # Compute UPDATEPOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update) + # Compute DUMMYPOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop) + # Compute GMOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo) + case "$ac_given_srcdir" in + .) srcdirpre= ;; + *) srcdirpre='$(srcdir)/' ;; + esac + POFILES= + UPDATEPOFILES= + DUMMYPOFILES= + GMOFILES= + for lang in $ALL_LINGUAS; do + POFILES="$POFILES $srcdirpre$lang.po" + UPDATEPOFILES="$UPDATEPOFILES $lang.po-update" + DUMMYPOFILES="$DUMMYPOFILES $lang.nop" + GMOFILES="$GMOFILES $srcdirpre$lang.gmo" + done + # CATALOGS depends on both $ac_dir and the user's LINGUAS + # environment variable. + INST_LINGUAS= + if test -n "$ALL_LINGUAS"; then + for presentlang in $ALL_LINGUAS; do + useit=no + if test "%UNSET%" != "$LINGUAS"; then + desiredlanguages="$LINGUAS" + else + desiredlanguages="$ALL_LINGUAS" + fi + for desiredlang in $desiredlanguages; do + # Use the presentlang catalog if desiredlang is + # a. equal to presentlang, or + # b. a variant of presentlang (because in this case, + # presentlang can be used as a fallback for messages + # which are not translated in the desiredlang catalog). + case "$desiredlang" in + "$presentlang"*) useit=yes;; + esac + done + if test $useit = yes; then + INST_LINGUAS="$INST_LINGUAS $presentlang" + fi + done + fi + CATALOGS= + if test -n "$INST_LINGUAS"; then + for lang in $INST_LINGUAS; do + CATALOGS="$CATALOGS $lang.gmo" + done + fi + test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile" + sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile" + for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do + if test -f "$f"; then + case "$f" in + *.orig | *.bak | *~) ;; + *) cat "$f" >> "$ac_dir/Makefile" ;; + esac + fi + done + fi + ;; + esac + done]], + [# Capture the value of obsolete ALL_LINGUAS because we need it to compute + # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS. But hide it + # from automake < 1.5. + eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"' + # Capture the value of LINGUAS because we need it to compute CATALOGS. + LINGUAS="${LINGUAS-%UNSET%}" + ]) +]) + +dnl Postprocesses a Makefile in a directory containing PO files. +AC_DEFUN([AM_POSTPROCESS_PO_MAKEFILE], +[ + # When this code is run, in config.status, two variables have already been + # set: + # - OBSOLETE_ALL_LINGUAS is the value of LINGUAS set in configure.in, + # - LINGUAS is the value of the environment variable LINGUAS at configure + # time. + +changequote(,)dnl + # Adjust a relative srcdir. + ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` + ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'` + ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` + # In autoconf-2.13 it is called $ac_given_srcdir. + # In autoconf-2.50 it is called $srcdir. + test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" + case "$ac_given_srcdir" in + .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; + /*) top_srcdir="$ac_given_srcdir" ;; + *) top_srcdir="$ac_dots$ac_given_srcdir" ;; + esac + + # Find a way to echo strings without interpreting backslash. + if test "X`(echo '\t') 2>/dev/null`" = 'X\t'; then + gt_echo='echo' + else + if test "X`(printf '%s\n' '\t') 2>/dev/null`" = 'X\t'; then + gt_echo='printf %s\n' + else + echo_func () { + cat <<EOT +$* +EOT + } + gt_echo='echo_func' + fi + fi + + # A sed script that extracts the value of VARIABLE from a Makefile. + tab=`printf '\t'` + sed_x_variable=' +# Test if the hold space is empty. +x +s/P/P/ +x +ta +# Yes it was empty. Look if we have the expected variable definition. +/^['"${tab}"' ]*VARIABLE['"${tab}"' ]*=/{ + # Seen the first line of the variable definition. + s/^['"${tab}"' ]*VARIABLE['"${tab}"' ]*=// + ba +} +bd +:a +# Here we are processing a line from the variable definition. +# Remove comment, more precisely replace it with a space. +s/#.*$/ / +# See if the line ends in a backslash. +tb +:b +s/\\$// +# Print the line, without the trailing backslash. +p +tc +# There was no trailing backslash. The end of the variable definition is +# reached. Clear the hold space. +s/^.*$// +x +bd +:c +# A trailing backslash means that the variable definition continues in the +# next line. Put a nonempty string into the hold space to indicate this. +s/^.*$/P/ +x +:d +' +changequote([,])dnl + + # Set POTFILES to the value of the Makefile variable POTFILES. + sed_x_POTFILES=`$gt_echo "$sed_x_variable" | sed -e '/^ *#/d' -e 's/VARIABLE/POTFILES/g'` + POTFILES=`sed -n -e "$sed_x_POTFILES" < "$ac_file"` + # Compute POTFILES_DEPS as + # $(foreach file, $(POTFILES), $(top_srcdir)/$(file)) + POTFILES_DEPS= + for file in $POTFILES; do + POTFILES_DEPS="$POTFILES_DEPS "'$(top_srcdir)/'"$file" + done + POMAKEFILEDEPS="" + + if test -n "$OBSOLETE_ALL_LINGUAS"; then + test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete" + fi + if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then + # The LINGUAS file contains the set of available languages. + ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"` + POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS" + else + # Set ALL_LINGUAS to the value of the Makefile variable LINGUAS. + sed_x_LINGUAS=`$gt_echo "$sed_x_variable" | sed -e '/^ *#/d' -e 's/VARIABLE/LINGUAS/g'` + ALL_LINGUAS_=`sed -n -e "$sed_x_LINGUAS" < "$ac_file"` + fi + # Hide the ALL_LINGUAS assignment from automake < 1.5. + eval 'ALL_LINGUAS''=$ALL_LINGUAS_' + # Compute POFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po) + # Compute UPDATEPOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update) + # Compute DUMMYPOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop) + # Compute GMOFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo) + # Compute PROPERTIESFILES + # as $(foreach lang, $(ALL_LINGUAS), $(top_srcdir)/$(DOMAIN)_$(lang).properties) + # Compute CLASSFILES + # as $(foreach lang, $(ALL_LINGUAS), $(top_srcdir)/$(DOMAIN)_$(lang).class) + # Compute QMFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).qm) + # Compute MSGFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(frob $(lang)).msg) + # Compute RESOURCESDLLFILES + # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(frob $(lang))/$(DOMAIN).resources.dll) + case "$ac_given_srcdir" in + .) srcdirpre= ;; + *) srcdirpre='$(srcdir)/' ;; + esac + POFILES= + UPDATEPOFILES= + DUMMYPOFILES= + GMOFILES= + PROPERTIESFILES= + CLASSFILES= + QMFILES= + MSGFILES= + RESOURCESDLLFILES= + for lang in $ALL_LINGUAS; do + POFILES="$POFILES $srcdirpre$lang.po" + UPDATEPOFILES="$UPDATEPOFILES $lang.po-update" + DUMMYPOFILES="$DUMMYPOFILES $lang.nop" + GMOFILES="$GMOFILES $srcdirpre$lang.gmo" + PROPERTIESFILES="$PROPERTIESFILES \$(top_srcdir)/\$(DOMAIN)_$lang.properties" + CLASSFILES="$CLASSFILES \$(top_srcdir)/\$(DOMAIN)_$lang.class" + QMFILES="$QMFILES $srcdirpre$lang.qm" + frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'` + MSGFILES="$MSGFILES $srcdirpre$frobbedlang.msg" + frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'` + RESOURCESDLLFILES="$RESOURCESDLLFILES $srcdirpre$frobbedlang/\$(DOMAIN).resources.dll" + done + # CATALOGS depends on both $ac_dir and the user's LINGUAS + # environment variable. + INST_LINGUAS= + if test -n "$ALL_LINGUAS"; then + for presentlang in $ALL_LINGUAS; do + useit=no + if test "%UNSET%" != "$LINGUAS"; then + desiredlanguages="$LINGUAS" + else + desiredlanguages="$ALL_LINGUAS" + fi + for desiredlang in $desiredlanguages; do + # Use the presentlang catalog if desiredlang is + # a. equal to presentlang, or + # b. a variant of presentlang (because in this case, + # presentlang can be used as a fallback for messages + # which are not translated in the desiredlang catalog). + case "$desiredlang" in + "$presentlang"*) useit=yes;; + esac + done + if test $useit = yes; then + INST_LINGUAS="$INST_LINGUAS $presentlang" + fi + done + fi + CATALOGS= + JAVACATALOGS= + QTCATALOGS= + TCLCATALOGS= + CSHARPCATALOGS= + if test -n "$INST_LINGUAS"; then + for lang in $INST_LINGUAS; do + CATALOGS="$CATALOGS $lang.gmo" + JAVACATALOGS="$JAVACATALOGS \$(DOMAIN)_$lang.properties" + QTCATALOGS="$QTCATALOGS $lang.qm" + frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'` + TCLCATALOGS="$TCLCATALOGS $frobbedlang.msg" + frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'` + CSHARPCATALOGS="$CSHARPCATALOGS $frobbedlang/\$(DOMAIN).resources.dll" + done + fi + + sed -e "s|@POTFILES_DEPS@|$POTFILES_DEPS|g" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@PROPERTIESFILES@|$PROPERTIESFILES|g" -e "s|@CLASSFILES@|$CLASSFILES|g" -e "s|@QMFILES@|$QMFILES|g" -e "s|@MSGFILES@|$MSGFILES|g" -e "s|@RESOURCESDLLFILES@|$RESOURCESDLLFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@JAVACATALOGS@|$JAVACATALOGS|g" -e "s|@QTCATALOGS@|$QTCATALOGS|g" -e "s|@TCLCATALOGS@|$TCLCATALOGS|g" -e "s|@CSHARPCATALOGS@|$CSHARPCATALOGS|g" -e 's,^#distdir:,distdir:,' < "$ac_file" > "$ac_file.tmp" + tab=`printf '\t'` + if grep -l '@TCLCATALOGS@' "$ac_file" > /dev/null; then + # Add dependencies that cannot be formulated as a simple suffix rule. + for lang in $ALL_LINGUAS; do + frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'` + cat >> "$ac_file.tmp" <<EOF +$frobbedlang.msg: $lang.po +${tab}@echo "\$(MSGFMT) -c --tcl -d \$(srcdir) -l $lang $srcdirpre$lang.po"; \ +${tab}\$(MSGFMT) -c --tcl -d "\$(srcdir)" -l $lang $srcdirpre$lang.po || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; } +EOF + done + fi + if grep -l '@CSHARPCATALOGS@' "$ac_file" > /dev/null; then + # Add dependencies that cannot be formulated as a simple suffix rule. + for lang in $ALL_LINGUAS; do + frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'` + cat >> "$ac_file.tmp" <<EOF +$frobbedlang/\$(DOMAIN).resources.dll: $lang.po +${tab}@echo "\$(MSGFMT) -c --csharp -d \$(srcdir) -l $lang $srcdirpre$lang.po -r \$(DOMAIN)"; \ +${tab}\$(MSGFMT) -c --csharp -d "\$(srcdir)" -l $lang $srcdirpre$lang.po -r "\$(DOMAIN)" || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; } +EOF + done + fi + if test -n "$POMAKEFILEDEPS"; then + cat >> "$ac_file.tmp" <<EOF +Makefile: $POMAKEFILEDEPS +EOF + fi + mv "$ac_file.tmp" "$ac_file" +]) + +dnl Initializes the accumulator used by AM_XGETTEXT_OPTION. +AC_DEFUN([AM_XGETTEXT_OPTION_INIT], +[ + XGETTEXT_EXTRA_OPTIONS= +]) + +dnl Registers an option to be passed to xgettext in the po subdirectory. +AC_DEFUN([AM_XGETTEXT_OPTION], +[ + AC_REQUIRE([AM_XGETTEXT_OPTION_INIT]) + XGETTEXT_EXTRA_OPTIONS="$XGETTEXT_EXTRA_OPTIONS $1" +]) diff --git a/gl/m4/printf-posix.m4 b/gl/m4/printf-posix.m4 new file mode 100644 index 0000000..d7dfb60 --- /dev/null +++ b/gl/m4/printf-posix.m4 @@ -0,0 +1,48 @@ +# printf-posix.m4 serial 6 (gettext-0.18.2) +dnl Copyright (C) 2003, 2007, 2009-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether the printf() function supports POSIX/XSI format strings with +dnl positions. + +AC_DEFUN([gt_PRINTF_POSIX], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([whether printf() supports POSIX/XSI format strings], + gt_cv_func_printf_posix, + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +/* The string "%2$d %1$d", with dollar characters protected from the shell's + dollar expansion (possibly an autoconf bug). */ +static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; +static char buf[100]; +int main () +{ + sprintf (buf, format, 33, 55); + return (strcmp (buf, "55 33") != 0); +}]])], + [gt_cv_func_printf_posix=yes], + [gt_cv_func_printf_posix=no], + [ + AC_EGREP_CPP([notposix], [ +#if defined __NetBSD__ || defined __BEOS__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ + notposix +#endif + ], + [gt_cv_func_printf_posix="guessing no"], + [gt_cv_func_printf_posix="guessing yes"]) + ]) + ]) + case $gt_cv_func_printf_posix in + *yes) + AC_DEFINE([HAVE_POSIX_PRINTF], [1], + [Define if your printf() function supports format strings with positions.]) + ;; + esac +]) diff --git a/gl/m4/printf.m4 b/gl/m4/printf.m4 new file mode 100644 index 0000000..8b8f010 --- /dev/null +++ b/gl/m4/printf.m4 @@ -0,0 +1,2158 @@ +# printf.m4 serial 84 +dnl Copyright (C) 2003, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Test whether the *printf family of functions supports the 'j', 'z', 't', +dnl 'L' size specifiers. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_sizes_c99. + +AC_DEFUN([gl_PRINTF_SIZES_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports size specifiers as in C99], + [gl_cv_func_printf_sizes_c99], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#if HAVE_STDINT_H_WITH_UINTMAX +# include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +# include <inttypes.h> +#endif +static char buf[100]; +int main () +{ + int result = 0; +#if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX + buf[0] = '\0'; + if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + result |= 1; +#else + result |= 1; +#endif + buf[0] = '\0'; + if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0 + || strcmp (buf, "12345672 33") != 0) + result |= 2; + buf[0] = '\0'; + if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0 + || strcmp (buf, "12345673 33") != 0) + result |= 4; + buf[0] = '\0'; + if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0 + || strcmp (buf, "1.5 33") != 0) + result |= 8; + return result; +}]])], + [gl_cv_func_printf_sizes_c99=yes], + [gl_cv_func_printf_sizes_c99=no], + [ + case "$host_os" in +changequote(,)dnl + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + midnightbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";; + darwin*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_printf_sizes_c99="guessing no";; + openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on Solaris >= 2.10. + solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; + solaris*) gl_cv_func_printf_sizes_c99="guessing no";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_printf_sizes_c99="guessing no";; + netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_sizes_c99="guessing yes"], + [gl_cv_func_printf_sizes_c99="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_sizes_c99="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the 'w8', 'w16', +dnl 'w32', 'w64', 'wf8', 'wf16', 'wf32', 'wf64' size specifiers. (ISO C23) +dnl Result is gl_cv_func_printf_sizes_c23. + +AC_DEFUN([gl_PRINTF_SIZES_C23], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports size specifiers as in C23], + [gl_cv_func_printf_sizes_c23], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#if HAVE_STDINT_H_WITH_UINTMAX +# include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +# include <inttypes.h> +#endif +static char buf[100]; +int main () +{ + int result = 0; + buf[0] = '\0'; + if (sprintf (buf, "%w8u %d", (uint8_t) 123, 33, 44, 55) < 0 + || strcmp (buf, "123 33") != 0) + result |= 1; + buf[0] = '\0'; + if (sprintf (buf, "%wf8u %d", (uint_fast8_t) 123, 33, 44, 55) < 0 + || strcmp (buf, "123 33") != 0) + result |= 1; + buf[0] = '\0'; + if (sprintf (buf, "%w16u %d", (uint16_t) 12345, 33, 44, 55) < 0 + || strcmp (buf, "12345 33") != 0) + result |= 2; + buf[0] = '\0'; + if (sprintf (buf, "%wf16u %d", (uint_fast16_t) 12345, 33, 44, 55) < 0 + || strcmp (buf, "12345 33") != 0) + result |= 2; + buf[0] = '\0'; + if (sprintf (buf, "%w32u %d", (uint32_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + result |= 4; + buf[0] = '\0'; + if (sprintf (buf, "%wf32u %d", (uint_fast32_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + result |= 4; +#if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX + buf[0] = '\0'; + if (sprintf (buf, "%w64u %d", (uint64_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + result |= 8; + buf[0] = '\0'; + if (sprintf (buf, "%wf64u %d", (uint_fast64_t) 12345671, 33, 44, 55) < 0 + || strcmp (buf, "12345671 33") != 0) + result |= 8; +#else + result |= 8; +#endif + return result; +}]])], + [gl_cv_func_printf_sizes_c23=yes], + [gl_cv_func_printf_sizes_c23=no], + [ + case "$host_os" in + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_sizes_c23="guessing no";; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_printf_sizes_c23="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_sizes_c23="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_sizes_c23="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_sizes_c23="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports 'long double' +dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_long_double. + +AC_DEFUN([gl_PRINTF_LONG_DOUBLE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports 'long double' arguments], + [gl_cv_func_printf_long_double], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[10000]; +int main () +{ + int result = 0; + buf[0] = '\0'; + if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.750000 33") != 0) + result |= 1; + buf[0] = '\0'; + if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.750000e+00 33") != 0) + result |= 2; + buf[0] = '\0'; + if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0 + || strcmp (buf, "1.75 33") != 0) + result |= 4; + return result; +}]])], + [gl_cv_func_printf_long_double=yes], + [gl_cv_func_printf_long_double=no], + [case "$host_os" in + # Guess no on BeOS. + beos*) gl_cv_func_printf_long_double="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_long_double="guessing yes";; + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_long_double="guessing yes"], + [gl_cv_func_printf_long_double="guessing no"]) + ;; + *) gl_cv_func_printf_long_double="guessing yes";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports infinite and NaN +dnl 'double' arguments and negative zero arguments in the %f, %e, %g +dnl directives. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_infinite. + +AC_DEFUN([gl_PRINTF_INFINITE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports infinite 'double' arguments], + [gl_cv_func_printf_infinite], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static int +strisnan (const char *string, size_t start_index, size_t end_index) +{ + if (start_index < end_index) + { + if (string[start_index] == '-') + start_index++; + if (start_index + 3 <= end_index + && memcmp (string + start_index, "nan", 3) == 0) + { + start_index += 3; + if (start_index == end_index + || (string[start_index] == '(' && string[end_index - 1] == ')')) + return 1; + } + } + return 0; +} +static int +have_minus_zero () +{ + static double plus_zero = 0.0; + double minus_zero = - plus_zero; + return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0; +} +static char buf[10000]; +static double zero = 0.0; +int main () +{ + int result = 0; + if (sprintf (buf, "%f", 1.0 / zero) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 1; + if (sprintf (buf, "%f", -1.0 / zero) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 1; + if (sprintf (buf, "%f", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + if (sprintf (buf, "%e", 1.0 / zero) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 4; + if (sprintf (buf, "%e", -1.0 / zero) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 4; + if (sprintf (buf, "%e", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 8; + if (sprintf (buf, "%g", 1.0 / zero) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 16; + if (sprintf (buf, "%g", -1.0 / zero) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 16; + if (sprintf (buf, "%g", zero / zero) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 32; + /* This test fails on HP-UX 10.20. */ + if (have_minus_zero ()) + if (sprintf (buf, "%g", - zero) < 0 + || strcmp (buf, "-0") != 0) + result |= 64; + return result; +}]])], + [gl_cv_func_printf_infinite=yes], + [gl_cv_func_printf_infinite=no], + [ + case "$host_os" in +changequote(,)dnl + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; + midnightbsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";; + darwin*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite="guessing no";; + hpux*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_printf_infinite="guessing no";; + netbsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; + openbsd*) gl_cv_func_printf_infinite="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_infinite="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_infinite="guessing no";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_infinite="guessing yes"], + [gl_cv_func_printf_infinite="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_infinite="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports infinite and NaN +dnl 'long double' arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_infinite_long_double. + +AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_BIGENDIAN]) + AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl The user can set or unset the variable gl_printf_safe to indicate + dnl that he wishes a safe handling of non-IEEE-754 'long double' values. + if test -n "$gl_printf_safe"; then + AC_DEFINE([CHECK_PRINTF_SAFE], [1], + [Define if you wish *printf() functions that have a safe handling of + non-IEEE-754 'long double' values.]) + fi + case "$gl_cv_func_printf_long_double" in + *yes) + AC_CACHE_CHECK([whether printf supports infinite 'long double' arguments], + [gl_cv_func_printf_infinite_long_double], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +]GL_NOCRASH[ +#include <float.h> +#include <stdio.h> +#include <string.h> +static int +strisnan (const char *string, size_t start_index, size_t end_index) +{ + if (start_index < end_index) + { + if (string[start_index] == '-') + start_index++; + if (start_index + 3 <= end_index + && memcmp (string + start_index, "nan", 3) == 0) + { + start_index += 3; + if (start_index == end_index + || (string[start_index] == '(' && string[end_index - 1] == ')')) + return 1; + } + } + return 0; +} +static char buf[10000]; +static long double zeroL = 0.0L; +int main () +{ + int result = 0; + nocrash_init(); + if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Lf", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 1; + if (sprintf (buf, "%Le", 1.0L / zeroL) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Le", -1.0L / zeroL) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Le", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 1; + if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0 + || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0 + || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) + result |= 1; + if (sprintf (buf, "%Lg", zeroL / zeroL) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 1; +#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE +/* Representation of an 80-bit 'long double' as an initializer for a sequence + of 'unsigned int' words. */ +# ifdef WORDS_BIGENDIAN +# define LDBL80_WORDS(exponent,manthi,mantlo) \ + { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \ + ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16), \ + (unsigned int) (mantlo) << 16 \ + } +# else +# define LDBL80_WORDS(exponent,manthi,mantlo) \ + { mantlo, manthi, exponent } +# endif + { /* Quiet NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + } + { + /* Signalling NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + if (sprintf (buf, "%Le", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + if (sprintf (buf, "%Lg", x.value) < 0 + || !strisnan (buf, 0, strlen (buf))) + result |= 2; + } + { /* Pseudo-NaN. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) <= 0) + result |= 4; + if (sprintf (buf, "%Le", x.value) <= 0) + result |= 4; + if (sprintf (buf, "%Lg", x.value) <= 0) + result |= 4; + } + { /* Pseudo-Infinity. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) <= 0) + result |= 8; + if (sprintf (buf, "%Le", x.value) <= 0) + result |= 8; + if (sprintf (buf, "%Lg", x.value) <= 0) + result |= 8; + } + { /* Pseudo-Zero. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) <= 0) + result |= 16; + if (sprintf (buf, "%Le", x.value) <= 0) + result |= 16; + if (sprintf (buf, "%Lg", x.value) <= 0) + result |= 16; + } + { /* Unnormalized number. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) <= 0) + result |= 32; + if (sprintf (buf, "%Le", x.value) <= 0) + result |= 32; + if (sprintf (buf, "%Lg", x.value) <= 0) + result |= 32; + } + { /* Pseudo-Denormal. */ + static union { unsigned int word[4]; long double value; } x = + { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) }; + if (sprintf (buf, "%Lf", x.value) <= 0) + result |= 64; + if (sprintf (buf, "%Le", x.value) <= 0) + result |= 64; + if (sprintf (buf, "%Lg", x.value) <= 0) + result |= 64; + } +#endif + return result; +}]])], + [gl_cv_func_printf_infinite_long_double=yes], + [gl_cv_func_printf_infinite_long_double=no], + [case "$host_cpu" in + # Guess no on ia64, x86_64, i386. + ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";; + *) + case "$host_os" in +changequote(,)dnl + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + midnightbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";; + hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; + openbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_infinite_long_double="guessing yes"], + [gl_cv_func_printf_infinite_long_double="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_infinite_long_double="$gl_cross_guess_normal";; + esac + ;; + esac + ]) + ]) + ;; + *) + gl_cv_func_printf_infinite_long_double="irrelevant" + ;; + esac +]) + +dnl Test whether the *printf family of functions supports the 'a' and 'A' +dnl conversion specifier for hexadecimal output of floating-point numbers. +dnl (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_a. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_A], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'a' and 'A' directives], + [gl_cv_func_printf_directive_a], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +static double zero = 0.0; +int main () +{ + int result = 0; + if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0 + || (strcmp (buf, "0x1.922p+1 33") != 0 + && strcmp (buf, "0x3.244p+0 33") != 0 + && strcmp (buf, "0x6.488p-1 33") != 0 + && strcmp (buf, "0xc.91p-2 33") != 0)) + result |= 1; + if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0 + || (strcmp (buf, "-0X1.922P+1 33") != 0 + && strcmp (buf, "-0X3.244P+0 33") != 0 + && strcmp (buf, "-0X6.488P-1 33") != 0 + && strcmp (buf, "-0XC.91P-2 33") != 0)) + result |= 2; + /* This catches a FreeBSD 13.0 bug: it doesn't round. */ + if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0 + || (strcmp (buf, "0x1.83p+0 33") != 0 + && strcmp (buf, "0x3.05p-1 33") != 0 + && strcmp (buf, "0x6.0ap-2 33") != 0 + && strcmp (buf, "0xc.14p-3 33") != 0)) + result |= 4; + /* This catches a Mac OS X 10.12.4 (Darwin 16.5) bug: it doesn't round. */ + if (sprintf (buf, "%.0a %d", 1.51, 33, 44, 55) < 0 + || (strcmp (buf, "0x2p+0 33") != 0 + && strcmp (buf, "0x3p-1 33") != 0 + && strcmp (buf, "0x6p-2 33") != 0 + && strcmp (buf, "0xcp-3 33") != 0)) + result |= 4; + /* This catches a FreeBSD 6.1 bug. See + <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */ + if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0 + || buf[0] == '0') + result |= 8; + /* This catches a Mac OS X 10.3.9 (Darwin 7.9) bug. */ + if (sprintf (buf, "%.1a", 1.999) < 0 + || (strcmp (buf, "0x1.0p+1") != 0 + && strcmp (buf, "0x2.0p+0") != 0 + && strcmp (buf, "0x4.0p-1") != 0 + && strcmp (buf, "0x8.0p-2") != 0)) + result |= 16; + /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a + glibc 2.4 bug <https://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */ + if (sprintf (buf, "%.1La", 1.999L) < 0 + || (strcmp (buf, "0x1.0p+1") != 0 + && strcmp (buf, "0x2.0p+0") != 0 + && strcmp (buf, "0x4.0p-1") != 0 + && strcmp (buf, "0x8.0p-2") != 0)) + result |= 32; + return result; +}]])], + [gl_cv_func_printf_directive_a=yes], + [gl_cv_func_printf_directive_a=no], + [ + case "$host_os" in + # Guess yes on glibc >= 2.5 systems. + *-gnu* | gnu*) + AC_EGREP_CPP([BZ2908], [ + #include <features.h> + #ifdef __GNU_LIBRARY__ + #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2)) && !defined __UCLIBC__ + BZ2908 + #endif + #endif + ], + [gl_cv_func_printf_directive_a="guessing yes"], + [gl_cv_func_printf_directive_a="guessing no"]) + ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_directive_a="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_a="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_a="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the 'b' conversion +dnl specifier for binary output of integers. +dnl (ISO C23) +dnl Result is gl_cv_func_printf_directive_b. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_B], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'b' directive], + [gl_cv_func_printf_directive_b], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + int result = 0; + if (sprintf (buf, "%b %d", 12345, 33, 44, 55) < 0 + || strcmp (buf, "11000000111001 33") != 0) + result |= 1; + return result; +}]])], + [gl_cv_func_printf_directive_b=yes], + [gl_cv_func_printf_directive_b=no], + [ + case "$host_os" in + # Guess yes on glibc >= 2.35 systems. + *-gnu* | gnu*) + AC_EGREP_CPP([Lucky], [ + #include <features.h> + #ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 35) || (__GLIBC__ > 2) + Lucky user + #endif + #endif + ], + [gl_cv_func_printf_directive_uppercase_b="guessing yes"], + [gl_cv_func_printf_directive_uppercase_b="guessing no"]) + ;; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_printf_directive_b="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_b="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_b="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_b="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the 'B' conversion +dnl specifier for binary output of integers. +dnl (GNU, encouraged by ISO C23 § 7.23.6.1) +dnl Result is gl_cv_func_printf_directive_uppercase_b. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_UPPERCASE_B], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'B' directive], + [gl_cv_func_printf_directive_uppercase_b], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + int result = 0; + if (sprintf (buf, "%#B %d", 12345, 33, 44, 55) < 0 + || strcmp (buf, "0B11000000111001 33") != 0) + result |= 1; + return result; +}]])], + [gl_cv_func_printf_directive_uppercase_b=yes], + [gl_cv_func_printf_directive_uppercase_b=no], + [ + case "$host_os" in + # Guess yes on glibc >= 2.35 systems. + *-gnu* | gnu*) + AC_EGREP_CPP([Lucky], [ + #include <features.h> + #ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 35) || (__GLIBC__ > 2) + Lucky user + #endif + #endif + ], + [gl_cv_func_printf_directive_uppercase_b="guessing yes"], + [gl_cv_func_printf_directive_uppercase_b="guessing no"]) + ;; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_printf_directive_uppercase_b="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_uppercase_b="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_uppercase_b="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_uppercase_b="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %F format +dnl directive. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_f. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_F], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'F' directive], + [gl_cv_func_printf_directive_f], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +static double zero = 0.0; +int main () +{ + int result = 0; + if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 + || strcmp (buf, "1234567.000000 33") != 0) + result |= 1; + if (sprintf (buf, "%F", 1.0 / zero) < 0 + || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) + result |= 2; + /* This catches a Cygwin 1.5.x bug. */ + if (sprintf (buf, "%.F", 1234.0) < 0 + || strcmp (buf, "1234") != 0) + result |= 4; + return result; +}]])], + [gl_cv_func_printf_directive_f=yes], + [gl_cv_func_printf_directive_f=no], + [ + case "$host_os" in +changequote(,)dnl + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on FreeBSD >= 6. + freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; + midnightbsd*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; + darwin*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; + openbsd*) gl_cv_func_printf_directive_f="guessing yes";; + # Guess yes on Solaris >= 2.10. + solaris2.[1-9][0-9]*) gl_cv_func_printf_directive_f="guessing yes";; + solaris*) gl_cv_func_printf_directive_f="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_f="guessing no";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_printf_directive_f="guessing yes"], + [gl_cv_func_printf_directive_f="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_directive_f="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %n format +dnl directive. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_printf_directive_n. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_N], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'n' directive], + [gl_cv_func_printf_directive_n], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#ifdef _MSC_VER +#include <inttypes.h> +/* See page about "Parameter Validation" on msdn.microsoft.com. + <https://docs.microsoft.com/en-us/cpp/c-runtime-library/parameter-validation> + <https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/set-invalid-parameter-handler-set-thread-local-invalid-parameter-handler> */ +static void cdecl +invalid_parameter_handler (const wchar_t *expression, + const wchar_t *function, + const wchar_t *file, unsigned int line, + uintptr_t dummy) +{ + exit (1); +} +#endif +static char fmtstring[10]; +static char buf[100]; +int main () +{ + int count = -1; +#ifdef _MSC_VER + _set_invalid_parameter_handler (invalid_parameter_handler); +#endif + /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) + support %n in format strings in read-only memory but not in writable + memory. */ + strcpy (fmtstring, "%d %n"); + if (sprintf (buf, fmtstring, 123, &count, 33, 44, 55) < 0 + || strcmp (buf, "123 ") != 0 + || count != 4) + return 1; + return 0; +}]])], + [gl_cv_func_printf_directive_n=yes], + [gl_cv_func_printf_directive_n=no], + [case "$host_os" in + # Guess no on glibc when _FORTIFY_SOURCE >= 2. + *-gnu* | gnu*) AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if _FORTIFY_SOURCE >= 2 + error fail + #endif + ]])], + [gl_cv_func_printf_directive_n="guessing yes"], + [gl_cv_func_printf_directive_n="guessing no"]) + ;; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_n="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_directive_n="guessing no";; + *) gl_cv_func_printf_directive_n="guessing yes";; + esac + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %ls format +dnl directive and in particular, when a precision is specified, whether +dnl the functions stop converting the wide string argument when the number +dnl of bytes that have been produced by this conversion equals or exceeds +dnl the precision. +dnl Result is gl_cv_func_printf_directive_ls. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_LS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'ls' directive], + [gl_cv_func_printf_directive_ls], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <wchar.h> +#include <string.h> +int main () +{ + int result = 0; + char buf[100]; + /* Test whether %ls works at all. + This test fails on OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Haiku, but not on + Cygwin 1.5. */ + { + static const wchar_t wstring[] = { 'a', 'b', 'c', 0 }; + buf[0] = '\0'; + if (sprintf (buf, "%ls", wstring) < 0 + || strcmp (buf, "abc") != 0) + result |= 1; + } + /* This test fails on IRIX 6.5, Solaris 2.6, Cygwin 1.5, Haiku (with an + assertion failure inside libc), but not on OpenBSD 4.0. */ + { + static const wchar_t wstring[] = { 'a', 0 }; + buf[0] = '\0'; + if (sprintf (buf, "%ls", wstring) < 0 + || strcmp (buf, "a") != 0) + result |= 2; + } + /* Test whether precisions in %ls are supported as specified in ISO C 99 + section 7.19.6.1: + "If a precision is specified, no more than that many bytes are written + (including shift sequences, if any), and the array shall contain a + null wide character if, to equal the multibyte character sequence + length given by the precision, the function would need to access a + wide character one past the end of the array." + This test fails on Solaris 10. */ + { + static const wchar_t wstring[] = { 'a', 'b', (wchar_t) 0xfdfdfdfd, 0 }; + buf[0] = '\0'; + if (sprintf (buf, "%.2ls", wstring) < 0 + || strcmp (buf, "ab") != 0) + result |= 8; + } + return result; +}]])], + [gl_cv_func_printf_directive_ls=yes], + [gl_cv_func_printf_directive_ls=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on OpenBSD >= 6.0. + openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";; + openbsd*) gl_cv_func_printf_directive_ls="guessing yes";; + irix*) gl_cv_func_printf_directive_ls="guessing no";; + solaris*) gl_cv_func_printf_directive_ls="guessing no";; + cygwin*) gl_cv_func_printf_directive_ls="guessing no";; + beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_directive_ls="guessing no";; + # Guess yes on native Windows. + mingw*) gl_cv_func_printf_directive_ls="guessing yes";; + *) gl_cv_func_printf_directive_ls="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the %lc format +dnl directive and in particular, when the argument is a null wide character, +dnl whether the functions don't produce a NUL byte. +dnl Result is gl_cv_func_printf_directive_lc. + +AC_DEFUN([gl_PRINTF_DIRECTIVE_LC], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the 'lc' directive correctly], + [gl_cv_func_printf_directive_lc], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <wchar.h> +#include <string.h> +int main () +{ + int result = 0; + char buf[100]; + /* This test fails on glibc 2.35, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, + macOS 12.5, AIX 7.2, Solaris 11.4. + glibc 2.35 bug: <https://sourceware.org/bugzilla/show_bug.cgi?id=30257> */ + { + buf[0] = '\0'; + if (sprintf (buf, "%lc%lc%lc", (wint_t) 'a', (wint_t) 0, (wint_t) 'z') < 0 + || strcmp (buf, "az") != 0) + result |= 1; + } + return result; +}]])], + [gl_cv_func_printf_directive_lc=yes], + [gl_cv_func_printf_directive_lc=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on musl libc. + *-musl* | midipix*) gl_cv_func_printf_directive_lc="guessing yes";; + # Guess no otherwise. + *) gl_cv_func_printf_directive_lc="guessing no";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports POSIX/XSI format +dnl strings with positions. (POSIX:2001) +dnl Result is gl_cv_func_printf_positions. + +AC_DEFUN_ONCE([gl_PRINTF_POSITIONS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions], + [gl_cv_func_printf_positions], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +/* The string "%2$d %1$d", with dollar characters protected from the shell's + dollar expansion (possibly an autoconf bug). */ +static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; +static char buf[100]; +int main () +{ + sprintf (buf, format, 33, 55); + return (strcmp (buf, "55 33") != 0); +}]])], + [gl_cv_func_printf_positions=yes], + [gl_cv_func_printf_positions=no], + [ +changequote(,)dnl + case "$host_os" in + netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) + gl_cv_func_printf_positions="guessing no";; + beos*) gl_cv_func_printf_positions="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_positions="guessing yes";; + # Guess no on native Windows. + mingw* | pw*) gl_cv_func_printf_positions="guessing no";; + *) gl_cv_func_printf_positions="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports POSIX/XSI format +dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001) +dnl Result is gl_cv_func_printf_flag_grouping. + +AC_DEFUN([gl_PRINTF_FLAG_GROUPING], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the grouping flag], + [gl_cv_func_printf_flag_grouping], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + if (sprintf (buf, "%'d %d", 1234567, 99) < 0 + || buf[strlen (buf) - 1] != '9') + return 1; + return 0; +}]])], + [gl_cv_func_printf_flag_grouping=yes], + [gl_cv_func_printf_flag_grouping=no], + [ +changequote(,)dnl + case "$host_os" in + cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; + netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";; + # Guess no on native Windows. + mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; + *) gl_cv_func_printf_flag_grouping="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports the - flag correctly. +dnl (ISO C99.) See +dnl <https://lists.gnu.org/r/bug-coreutils/2008-02/msg00035.html> +dnl Result is gl_cv_func_printf_flag_leftadjust. + +AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the left-adjust flag correctly], + [gl_cv_func_printf_flag_leftadjust], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +int main () +{ + /* Check that a '-' flag is not annihilated by a negative width. */ + if (sprintf (buf, "a%-*sc", -3, "b") < 0 + || strcmp (buf, "ab c") != 0) + return 1; + return 0; +}]])], + [gl_cv_func_printf_flag_leftadjust=yes], + [gl_cv_func_printf_flag_leftadjust=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on HP-UX 11. + hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess no on HP-UX 10 and older. + hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess yes on native Windows. + mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";; + # Guess yes otherwise. + *) gl_cv_func_printf_flag_leftadjust="guessing yes";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports padding of non-finite +dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See +dnl <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> +dnl Result is gl_cv_func_printf_flag_zero. + +AC_DEFUN([gl_PRINTF_FLAG_ZERO], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports the zero flag correctly], + [gl_cv_func_printf_flag_zero], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[100]; +static double zero = 0.0; +int main () +{ + if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 + || (strcmp (buf, " inf") != 0 + && strcmp (buf, " infinity") != 0)) + return 1; + return 0; +}]])], + [gl_cv_func_printf_flag_zero=yes], + [gl_cv_func_printf_flag_zero=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_flag_zero="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_flag_zero="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_printf_flag_zero="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions supports large precisions. +dnl On mingw, precisions larger than 512 are treated like 512, in integer, +dnl floating-point or pointer output. On Solaris 10/x86, precisions larger +dnl than 510 in floating-point output crash the program. On Solaris 10/SPARC, +dnl precisions larger than 510 in floating-point output yield wrong results. +dnl On AIX 7.1, precisions larger than 998 in floating-point output yield +dnl wrong results. On BeOS, precisions larger than 1044 crash the program. +dnl Result is gl_cv_func_printf_precision. + +AC_DEFUN([gl_PRINTF_PRECISION], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf supports large precisions], + [gl_cv_func_printf_precision], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +static char buf[5000]; +int main () +{ + int result = 0; +#ifdef __BEOS__ + /* On BeOS, this would crash and show a dialog box. Avoid the crash. */ + return 1; +#endif + if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3) + result |= 1; + if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5) + result |= 2; + if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5 + || buf[0] != '1') + result |= 4; + if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5 + || buf[0] != '1') + result |= 4; + return result; +}]])], + [gl_cv_func_printf_precision=yes], + [gl_cv_func_printf_precision=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess no only on Solaris, native Windows, and BeOS systems. + solaris*) gl_cv_func_printf_precision="guessing no" ;; + mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; + beos*) gl_cv_func_printf_precision="guessing no" ;; + # Guess yes on Android. + linux*-android*) gl_cv_func_printf_precision="guessing yes" ;; + *) gl_cv_func_printf_precision="guessing yes" ;; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the *printf family of functions recovers gracefully in case +dnl of an out-of-memory condition, or whether it crashes the entire program. +dnl Result is gl_cv_func_printf_enomem. + +AC_DEFUN([gl_PRINTF_ENOMEM], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_MULTIARCH]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether printf survives out-of-memory conditions], + [gl_cv_func_printf_enomem], + [ + gl_cv_func_printf_enomem="guessing no" + if test "$cross_compiling" = no; then + if test $APPLE_UNIVERSAL_BUILD = 0; then + AC_LANG_CONFTEST([AC_LANG_SOURCE([[ +]GL_NOCRASH[ +#include <stdio.h> +#include <sys/types.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <errno.h> +int main() +{ + struct rlimit limit; + int ret; + nocrash_init (); + /* Some printf implementations allocate temporary space with malloc. */ + /* On BSD systems, malloc() is limited by RLIMIT_DATA. */ +#ifdef RLIMIT_DATA + if (getrlimit (RLIMIT_DATA, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_DATA, &limit) < 0) + return 77; +#endif + /* On Linux systems, malloc() is limited by RLIMIT_AS. */ +#ifdef RLIMIT_AS + if (getrlimit (RLIMIT_AS, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_AS, &limit) < 0) + return 77; +#endif + /* Some printf implementations allocate temporary space on the stack. */ +#ifdef RLIMIT_STACK + if (getrlimit (RLIMIT_STACK, &limit) < 0) + return 77; + if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) + limit.rlim_max = 5000000; + limit.rlim_cur = limit.rlim_max; + if (setrlimit (RLIMIT_STACK, &limit) < 0) + return 77; +#endif + ret = printf ("%.5000000f", 1.0); + return !(ret == 5000002 || (ret < 0 && errno == ENOMEM)); +} + ]])]) + if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then + (./conftest 2>&AS_MESSAGE_LOG_FD + result=$? + _AS_ECHO_LOG([\$? = $result]) + if test $result != 0 && test $result != 77; then result=1; fi + exit $result + ) >/dev/null 2>/dev/null + case $? in + 0) gl_cv_func_printf_enomem="yes" ;; + 77) gl_cv_func_printf_enomem="guessing no" ;; + *) gl_cv_func_printf_enomem="no" ;; + esac + else + gl_cv_func_printf_enomem="guessing no" + fi + rm -fr conftest* + else + dnl A universal build on Apple Mac OS X platforms. + dnl The result would be 'no' in 32-bit mode and 'yes' in 64-bit mode. + dnl But we need a configuration result that is valid in both modes. + gl_cv_func_printf_enomem="guessing no" + fi + fi + if test "$gl_cv_func_printf_enomem" = "guessing no"; then +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on Solaris. + solaris*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on AIX. + aix*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on HP-UX/hppa. + hpux*) case "$host_cpu" in + hppa*) gl_cv_func_printf_enomem="guessing yes";; + *) gl_cv_func_printf_enomem="guessing no";; + esac + ;; + # Guess yes on IRIX. + irix*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on OSF/1. + osf*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_printf_enomem="guessing yes";; + # Guess yes on Haiku. + haiku*) gl_cv_func_printf_enomem="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_printf_enomem="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_printf_enomem="$gl_cross_guess_normal";; + esac +changequote([,])dnl + fi + ]) +]) + +dnl Test whether the snprintf function exists. (ISO C99, POSIX:2001) +dnl Result is ac_cv_func_snprintf. + +AC_DEFUN([gl_SNPRINTF_PRESENCE], +[ + AC_CHECK_FUNCS_ONCE([snprintf]) +]) + +dnl Test whether the string produced by the snprintf function is always NUL +dnl terminated. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_snprintf_truncation_c99. + +AC_DEFUN_ONCE([gl_SNPRINTF_TRUNCATION_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) + AC_CACHE_CHECK([whether snprintf truncates the result as in C99], + [gl_cv_func_snprintf_truncation_c99], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif +static char buf[100]; +int main () +{ + strcpy (buf, "ABCDEF"); + my_snprintf (buf, 3, "%d %d", 4567, 89); + if (memcmp (buf, "45\0DEF", 6) != 0) + return 1; + return 0; +}]])], + [gl_cv_func_snprintf_truncation_c99=yes], + [gl_cv_func_snprintf_truncation_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + midnightbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";; + darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_snprintf_truncation_c99="guessing no";; + openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5] | solaris2.[0-5].*) + gl_cv_func_snprintf_truncation_c99="guessing no";; + solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on HP-UX >= 11. + hpux[7-9]* | hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";; + hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on OSF/1 >= 5. + osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; + osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_truncation_c99="guessing no";; + netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";; + # Guess no on native Windows. + mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the return value of the snprintf function is the number +dnl of bytes (excluding the terminating NUL) that would have been produced +dnl if the buffer had been large enough. (ISO C99, POSIX:2001) +dnl For example, this test program fails on IRIX 6.5: +dnl --------------------------------------------------------------------- +dnl #include <stdio.h> +dnl int main() +dnl { +dnl static char buf[8]; +dnl int retval = snprintf (buf, 3, "%d", 12345); +dnl return retval >= 0 && retval < 3; +dnl } +dnl --------------------------------------------------------------------- +dnl Result is gl_cv_func_snprintf_retval_c99. + +AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) + AC_CACHE_CHECK([whether snprintf returns a byte count as in C99], + [gl_cv_func_snprintf_retval_c99], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif +static char buf[100]; +int main () +{ + strcpy (buf, "ABCDEF"); + if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7) + return 1; + if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7) + return 2; + if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7) + return 3; + return 0; +}]])], + [gl_cv_func_snprintf_retval_c99=yes], + [gl_cv_func_snprintf_retval_c99=no], + [case "$host_os" in +changequote(,)dnl + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4].*) gl_cv_func_snprintf_retval_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + midnightbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";; + darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on OpenBSD >= 3.9. + openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) + gl_cv_func_snprintf_retval_c99="guessing no";; + openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on Solaris >= 2.10. + solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; + solaris*) gl_cv_func_printf_sizes_c99="guessing no";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";; + aix*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_retval_c99="guessing no";; + netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_retval_c99="guessing yes";; + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";; +changequote([,])dnl + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_snprintf_retval_c99="guessing yes"], + [gl_cv_func_snprintf_retval_c99="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_retval_c99="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the snprintf function supports the %n format directive +dnl also in truncated portions of the format string. (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_snprintf_directive_n. + +AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) + AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive], + [gl_cv_func_snprintf_directive_n], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif +static char fmtstring[10]; +static char buf[100]; +int main () +{ + int count = -1; + /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) + support %n in format strings in read-only memory but not in writable + memory. */ + strcpy (fmtstring, "%d %n"); + my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); + if (count != 6) + return 1; + return 0; +}]])], + [gl_cv_func_snprintf_directive_n=yes], + [gl_cv_func_snprintf_directive_n=no], + [ + case "$host_os" in + # Guess no on glibc when _FORTIFY_SOURCE >= 2. + *-gnu* | gnu*) AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if _FORTIFY_SOURCE >= 2 + error fail + #endif + ]])], + [gl_cv_func_snprintf_directive_n="guessing yes"], + [gl_cv_func_snprintf_directive_n="guessing no"]) + ;; +changequote(,)dnl + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4].*) gl_cv_func_snprintf_directive_n="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; + midnightbsd*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";; + darwin*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5] | solaris2.[0-5].*) + gl_cv_func_snprintf_directive_n="guessing no";; + solaris*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";; + aix*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on OSF/1 >= 5. + osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";; + osf*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_snprintf_directive_n="guessing no";; + netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_snprintf_directive_n="guessing yes";; + # Guess no on Android. + linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";; + # Guess no on native Windows. + mingw*) gl_cv_func_snprintf_directive_n="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";; +changequote([,])dnl + esac + ]) + ]) +]) + +dnl Test whether the snprintf function, when passed a size = 1, writes any +dnl output without bounds in this case, behaving like sprintf. This is the +dnl case on Linux libc5. +dnl Result is gl_cv_func_snprintf_size1. + +AC_DEFUN([gl_SNPRINTF_SIZE1], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) + AC_CACHE_CHECK([whether snprintf respects a size of 1], + [gl_cv_func_snprintf_size1], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif +int main() +{ + static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; + my_snprintf (buf, 1, "%d", 12345); + return buf[1] != 'E'; +}]])], + [gl_cv_func_snprintf_size1=yes], + [gl_cv_func_snprintf_size1=no], + [case "$host_os" in + # Guess yes on Android. + linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_snprintf_size1="guessing yes" ;; + *) gl_cv_func_snprintf_size1="guessing yes" ;; + esac + ]) + ]) +]) + +dnl Test whether the vsnprintf function, when passed a zero size, produces no +dnl output. (ISO C99, POSIX:2001) +dnl For example, snprintf nevertheless writes a NUL byte in this case +dnl on OSF/1 5.1: +dnl --------------------------------------------------------------------- +dnl #include <stdio.h> +dnl int main() +dnl { +dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; +dnl snprintf (buf, 0, "%d", 12345); +dnl return buf[0] != 'D'; +dnl } +dnl --------------------------------------------------------------------- +dnl And vsnprintf writes any output without bounds in this case, behaving like +dnl vsprintf, on HP-UX 11 and OSF/1 5.1: +dnl --------------------------------------------------------------------- +dnl #include <stdarg.h> +dnl #include <stdio.h> +dnl static int my_snprintf (char *buf, int size, const char *format, ...) +dnl { +dnl va_list args; +dnl int ret; +dnl va_start (args, format); +dnl ret = vsnprintf (buf, size, format, args); +dnl va_end (args); +dnl return ret; +dnl } +dnl int main() +dnl { +dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; +dnl my_snprintf (buf, 0, "%d", 12345); +dnl return buf[0] != 'D'; +dnl } +dnl --------------------------------------------------------------------- +dnl Result is gl_cv_func_vsnprintf_zerosize_c99. + +AC_DEFUN([gl_VSNPRINTF_ZEROSIZE_C99], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether vsnprintf respects a zero size as in C99], + [gl_cv_func_vsnprintf_zerosize_c99], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdarg.h> +#include <stdio.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +int main() +{ + static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; + my_snprintf (buf, 0, "%d", 12345); + return buf[0] != 'D'; +}]])], + [gl_cv_func_vsnprintf_zerosize_c99=yes], + [gl_cv_func_vsnprintf_zerosize_c99=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on FreeBSD >= 5. + freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + midnightbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Mac OS X >= 10.3. + darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Cygwin. + cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Solaris >= 2.6. + solaris2.[0-5] | solaris2.[0-5].*) + gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on AIX >= 4. + aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on IRIX >= 6.5. + irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on NetBSD >= 3. + netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) + gl_cv_func_vsnprintf_zerosize_c99="guessing no";; + netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on BeOS. + beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on Android. + linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # Guess yes on native Windows. + mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";; + esac +changequote([,])dnl + ]) + ]) +]) + +dnl Test whether the swprintf function works correctly when it produces output +dnl that contains null wide characters. +dnl Result is gl_cv_func_swprintf_works. + +AC_DEFUN([gl_SWPRINTF_WORKS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_FUNCS_ONCE([swprintf]) + AC_CACHE_CHECK([whether swprintf works], + [gl_cv_func_swprintf_works], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#ifndef __USE_MINGW_ANSI_STDIO +# define __USE_MINGW_ANSI_STDIO 1 +#endif +#include <stdio.h> +#include <wchar.h> +int main() +{ + int result = 0; + { /* This test fails on musl libc 1.2.3, FreeBSD, NetBSD, OpenBSD, macOS, AIX. */ + wchar_t buf[5] = { 0xBEEF, 0xBEEF, 0xBEEF, 0xBEEF, 0xBEEF }; + int ret = swprintf (buf, 4, L"%cz", '\0'); + /* Expected result: + ret = 2, buf[0] = 0x0, buf[1] = 0x7a, buf[2] = 0x0, buf[3] = 0xbeef + musl libc 1.2.3: + ret = 2, buf[0] = 0x0, buf[1] = 0x0, buf[2] = 0x0, buf[3] = 0x0 + Reported at <https://www.openwall.com/lists/musl/2023/03/22/9>. + FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2: + ret = 2, buf[0] = 0x0, buf[1] = 0xbeef, buf[2] = 0xbeef, buf[3] = 0xbeef + */ + if (ret < 0 || buf[1] != 'z') + result |= 1; + } + { /* This test fails on mingw. */ + wchar_t buf[2]; + int ret = swprintf (buf, 2, L"%lc", (wint_t)0); + /* Expected: ret = 1 + mingw: ret = 0 + */ + if (ret != 1) + result |= 2; + } + return result; +}]])], + [gl_cv_func_swprintf_works=yes], + [gl_cv_func_swprintf_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_swprintf_works="guessing yes";; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_swprintf_works="guessing no";; + # Guess no on FreeBSD, NetBSD, OpenBSD, macOS, AIX. + freebsd* | midnightbsd* | netbsd* | openbsd* | darwin* | aix*) + gl_cv_func_swprintf_works="guessing no";; + # Guess no on native Windows. + mingw* | pw*) gl_cv_func_swprintf_works="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_swprintf_works="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *wprintf family of functions supports the 'a' and 'A' +dnl conversion specifier for hexadecimal output of 'long double' numbers. +dnl (ISO C99, POSIX:2001) +dnl Result is gl_cv_func_swprintf_directive_la. + +AC_DEFUN([gl_SWPRINTF_DIRECTIVE_LA], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether swprintf supports the 'La' and 'LA' directives], + [gl_cv_func_swprintf_directive_la], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <wchar.h> +static wchar_t buf[100]; +int main () +{ + int result = 0; + /* This catches a glibc 2.15 and Haiku 2022 bug. */ + if (swprintf (buf, sizeof (buf) / sizeof (wchar_t), + L"%La %d", 3.1416015625L, 33, 44, 55) < 0 + || (wcscmp (buf, L"0x1.922p+1 33") != 0 + && wcscmp (buf, L"0x3.244p+0 33") != 0 + && wcscmp (buf, L"0x6.488p-1 33") != 0 + && wcscmp (buf, L"0xc.91p-2 33") != 0)) + result |= 1; + return result; +}]])], + [gl_cv_func_swprintf_directive_la=yes], + [gl_cv_func_swprintf_directive_la=no], + [case "$host_os" in + # Guess yes on glibc >= 2.17 systems. + *-gnu* | gnu*) + AC_EGREP_CPP([Unlucky], [ + #include <features.h> + #ifdef __GNU_LIBRARY__ + #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16) || (__GLIBC__ > 2)) && !defined __UCLIBC__ + Unlucky + #endif + #endif + ], + [gl_cv_func_swprintf_directive_la="guessing yes"], + [gl_cv_func_swprintf_directive_la="guessing no"]) + ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_swprintf_directive_la="guessing yes";; + # Guess yes on Android. + linux*-android*) gl_cv_func_swprintf_directive_la="guessing yes";; + # Guess no on native Windows. + mingw*) gl_cv_func_swprintf_directive_la="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_swprintf_directive_la="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl Test whether the *wprintf family of functions supports the 'lc' conversion +dnl specifier for all wide characters. +dnl (ISO C11, POSIX:2001) +dnl Result is gl_cv_func_swprintf_directive_lc. + +AC_DEFUN([gl_SWPRINTF_DIRECTIVE_LC], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether swprintf supports the 'lc' directive], + [gl_cv_func_swprintf_directive_lc], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#include <wchar.h> +static wchar_t buf[100]; +static wint_t L_invalid = (wchar_t) 0x76543210; +int main () +{ + int result = 0; + /* This catches a musl libc 1.2.4, Android bug. + Reported at <https://www.openwall.com/lists/musl/2023/06/12/3>. */ + if (swprintf (buf, sizeof (buf) / sizeof (wchar_t), + L"%lc %d", L_invalid, 33, 44, 55) < 0) + result |= 1; + return result; +}]])], + [gl_cv_func_swprintf_directive_lc=yes], + [gl_cv_func_swprintf_directive_lc=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_swprintf_directive_lc="guessing yes";; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_swprintf_directive_lc="guessing no";; + # Guess no on Android. + linux*-android*) gl_cv_func_swprintf_directive_lc="guessing no";; + # Guess yes on native Windows. + mingw*) gl_cv_func_swprintf_directive_lc="guessing yes";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_swprintf_directive_lc="$gl_cross_guess_normal";; + esac + ]) + ]) +]) + +dnl The results of these tests on various platforms are: +dnl +dnl 1 = gl_PRINTF_SIZES_C99 +dnl 2 = gl_PRINTF_SIZES_C23 +dnl 3 = gl_PRINTF_LONG_DOUBLE +dnl 4 = gl_PRINTF_INFINITE +dnl 5 = gl_PRINTF_INFINITE_LONG_DOUBLE +dnl 6 = gl_PRINTF_DIRECTIVE_A +dnl 7 = gl_PRINTF_DIRECTIVE_B +dnl 8 = gl_PRINTF_DIRECTIVE_UPPERCASE_B +dnl 9 = gl_PRINTF_DIRECTIVE_F +dnl 10 = gl_PRINTF_DIRECTIVE_N +dnl 11 = gl_PRINTF_DIRECTIVE_LS +dnl 12 = gl_PRINTF_DIRECTIVE_LC +dnl 13 = gl_PRINTF_POSITIONS +dnl 14 = gl_PRINTF_FLAG_GROUPING +dnl 15 = gl_PRINTF_FLAG_LEFTADJUST +dnl 16 = gl_PRINTF_FLAG_ZERO +dnl 17 = gl_PRINTF_PRECISION +dnl 18 = gl_PRINTF_ENOMEM +dnl 19 = gl_SNPRINTF_PRESENCE +dnl 20 = gl_SNPRINTF_TRUNCATION_C99 +dnl 21 = gl_SNPRINTF_RETVAL_C99 +dnl 22 = gl_SNPRINTF_DIRECTIVE_N +dnl 23 = gl_SNPRINTF_SIZE1 +dnl 24 = gl_VSNPRINTF_ZEROSIZE_C99 +dnl 25 = gl_SWPRINTF_WORKS +dnl 26 = gl_SWPRINTF_DIRECTIVE_LA +dnl 27 = gl_SWPRINTF_DIRECTIVE_LC +dnl +dnl 1 = checking whether printf supports size specifiers as in C99... +dnl 2 = checking whether printf supports size specifiers as in C23... +dnl 3 = checking whether printf supports 'long double' arguments... +dnl 4 = checking whether printf supports infinite 'double' arguments... +dnl 5 = checking whether printf supports infinite 'long double' arguments... +dnl 6 = checking whether printf supports the 'a' and 'A' directives... +dnl 7 = checking whether printf supports the 'b' directive... +dnl 8 = checking whether printf supports the 'B' directive... +dnl 9 = checking whether printf supports the 'F' directive... +dnl 10 = checking whether printf supports the 'n' directive... +dnl 11 = checking whether printf supports the 'ls' directive... +dnl 12 = checking whether printf supports the 'lc' directive correctly... +dnl 13 = checking whether printf supports POSIX/XSI format strings with positions... +dnl 14 = checking whether printf supports the grouping flag... +dnl 15 = checking whether printf supports the left-adjust flag correctly... +dnl 16 = checking whether printf supports the zero flag correctly... +dnl 17 = checking whether printf supports large precisions... +dnl 18 = checking whether printf survives out-of-memory conditions... +dnl 19 = checking for snprintf... +dnl 20 = checking whether snprintf truncates the result as in C99... +dnl 21 = checking whether snprintf returns a byte count as in C99... +dnl 22 = checking whether snprintf fully supports the 'n' directive... +dnl 23 = checking whether snprintf respects a size of 1... +dnl 24 = checking whether vsnprintf respects a zero size as in C99... +dnl 25 = checking whether swprintf works... +dnl 26 = checking whether swprintf supports the 'La' and 'LA' directives... +dnl 27 = checking whether swprintf supports the 'lc' directive... +dnl +dnl . = yes, # = no. +dnl +dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 +dnl musl libc 1.2.3 . # . . . . # # . . . . . . . . . . . . . . . . # . # +dnl glibc 2.35 . # . . . . . . . . . # . . . . . . . . . . . . . . . +dnl glibc 2.5 . # . . . . # # . . . # . . . . . . . . . . . . . # . +dnl glibc 2.3.6 . # . . . # # # . . . # . . . . . . . . . . . . . # . +dnl FreeBSD 13.0 . # . . . # # # . . . # . . . . . # . . . . . . # . # +dnl FreeBSD 5.4, 6.1 . # . . . # # # . . . # . . . # . # . . . . . . # ? ? +dnl Mac OS X 10.13.5 . # . . # # # # . # . # . . . . . . . . . # . . # ? ? +dnl Mac OS X 10.5.8 . # . . # # # # . . . # . . . # . . . . . . . . # ? ? +dnl Mac OS X 10.3.9 . # . . . # # # . . . # . . . # . # . . . . . . # ? ? +dnl OpenBSD 6.0, 6.7 . # . . . # # # . . . # . . . . . # . . . . . . # . # +dnl OpenBSD 3.9, 4.0 . # . # # # # # # . # # . # . # . # . . . . . . # ? ? +dnl Cygwin 1.7.0 (2009) . # . . # . # # . . ? ? . . . . . ? . . . . . . ? ? ? +dnl Cygwin 1.5.25 (2008) . # . . # # # # . . # ? . . . . . # . . . . . . ? ? ? +dnl Cygwin 1.5.19 (2006) # # . . # # # # # . # ? . # . # # # . . . . . . ? ? ? +dnl Solaris 11.4 . # . # # # # # . . # # . . . # . . . . . . . . . # . +dnl Solaris 11.3 . # . . . # # # . . # # . . . . . . . . . . . . . # . +dnl Solaris 11.0 . # . # # # # # . . # # . . . # . . . . . . . . ? ? ? +dnl Solaris 10 . # . # # # # # . . # # . . . # # . . . . . . . . # . +dnl Solaris 2.6 ... 9 # # . # # # # # # . # # . . . # # . . . # . . . ? ? ? +dnl Solaris 2.5.1 # # . # # # # # # . # # . . . # . . # # # # # # ? ? ? +dnl AIX 7.1 . # . # # # # # . . . # . . . # # . . . . . . . # . . +dnl AIX 5.2 . # . # # # # # . . . # . . . # . . . . . . . . # ? ? +dnl AIX 4.3.2, 5.1 # # . # # # # # # . . # . . . # . . . . # . . . # ? ? +dnl HP-UX 11.31 . # . . . # # # . . . ? . . . # . . . . # # . . ? ? ? +dnl HP-UX 11.{00,11,23} # # . . . # # # # . . ? . . . # . . . . # # . # ? ? ? +dnl HP-UX 10.20 # # . # . # # # # . ? ? . . # # . . . . # # ? # ? ? ? +dnl IRIX 6.5 # # . # # # # # # . # # . . . # . . . . # . . . # ? ? +dnl OSF/1 5.1 # # . # # # # # # . . ? . . . # . . . . # . . # ? ? ? +dnl OSF/1 4.0d # # . # # # # # # . . ? . . . # . . # # # # # # ? ? ? +dnl NetBSD 9.0 . # . . . # # # . . . # . . . . . . . . . . . . # . # +dnl NetBSD 5.0 . # . . # # # # . . . # . . . # . # . . . . . . # ? ? +dnl NetBSD 4.0 . # ? ? ? ? # # ? . ? # . ? ? ? ? ? . . . ? ? ? # ? ? +dnl NetBSD 3.0 . # . . . # # # # . ? # # # ? # . # . . . . . . # ? ? +dnl Haiku . # . . # # # # # . # ? . . . . . ? . . ? . . . . # . +dnl BeOS # # # . # # # # # . ? ? # . ? . # ? . . ? . . . ? ? ? +dnl Android 4.3 . # . # # # # # # # # ? . # . # . # . . . # . . ? ? ? +dnl old mingw / msvcrt # # # # # # # # # . . ? # # . # # ? . # # # . . # ? ? +dnl MSVC 9 # # # # # # # # # # . ? # # . # # ? # # # # . . # ? ? +dnl mingw 2009-2011 . # # . # . # # . . . ? # # . . . ? . . . . . . # ? ? +dnl mingw-w64 2011 # # # # # # # # # . . ? # # . # # ? . # # # . . # ? ? diff --git a/gl/m4/progtest.m4 b/gl/m4/progtest.m4 new file mode 100644 index 0000000..7b39123 --- /dev/null +++ b/gl/m4/progtest.m4 @@ -0,0 +1,91 @@ +# progtest.m4 serial 7 (gettext-0.18.2) +dnl Copyright (C) 1996-2003, 2005, 2008-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper <drepper@cygnus.com>, 1996. + +AC_PREREQ([2.50]) + +# Search path for a program which passes the given test. + +dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR, +dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]]) +AC_DEFUN([AM_PATH_PROG_WITH_TEST], +[ +# Prepare PATH_SEPARATOR. +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which + # contains only /bin. Note that ksh looks also at the FPATH variable, + # so we have to set that as well for the test. + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \ + && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \ + || PATH_SEPARATOR=';' + } +fi + +# Find out how to test for executable files. Don't use a zero-byte file, +# as systems may use methods other than mode bits to determine executability. +cat >conf$$.file <<_ASEOF +#! /bin/sh +exit 0 +_ASEOF +chmod +x conf$$.file +if test -x conf$$.file >/dev/null 2>&1; then + ac_executable_p="test -x" +else + ac_executable_p="test -f" +fi +rm -f conf$$.file + +# Extract the first word of "$2", so it can be a program name with args. +set dummy $2; ac_word=[$]2 +AC_MSG_CHECKING([for $ac_word]) +AC_CACHE_VAL([ac_cv_path_$1], +[case "[$]$1" in + [[\\/]]* | ?:[[\\/]]*) + ac_cv_path_$1="[$]$1" # Let the user override the test with a path. + ;; + *) + ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in ifelse([$5], , $PATH, [$5]); do + IFS="$ac_save_IFS" + test -z "$ac_dir" && ac_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then + echo "$as_me: trying $ac_dir/$ac_word..." >&AS_MESSAGE_LOG_FD + if [$3]; then + ac_cv_path_$1="$ac_dir/$ac_word$ac_exec_ext" + break 2 + fi + fi + done + done + IFS="$ac_save_IFS" +dnl If no 4th arg is given, leave the cache variable unset, +dnl so AC_PATH_PROGS will keep looking. +ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4" +])dnl + ;; +esac])dnl +$1="$ac_cv_path_$1" +if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then + AC_MSG_RESULT([$][$1]) +else + AC_MSG_RESULT([no]) +fi +AC_SUBST([$1])dnl +]) diff --git a/gl/m4/pselect.m4 b/gl/m4/pselect.m4 new file mode 100644 index 0000000..6c3d1b8 --- /dev/null +++ b/gl/m4/pselect.m4 @@ -0,0 +1,75 @@ +# pselect.m4 serial 11 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_PSELECT], +[ + AC_REQUIRE([gl_SYS_SELECT_H]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_FUNCS_ONCE([pselect]) + + if test $ac_cv_func_pselect = yes; then + AC_CACHE_CHECK([whether signature of pselect conforms to POSIX], + [gl_cv_sig_pselect], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/select.h> + ]], + [[int (*p) (int, fd_set *, fd_set *, fd_set *restrict, + struct timespec const *restrict, + sigset_t const *restrict) = pselect; + return !p;]])], + [gl_cv_sig_pselect=yes], + [gl_cv_sig_pselect=no])]) + + dnl On FreeBSD 8.2, pselect() doesn't always reject bad fds. + AC_CACHE_CHECK([whether pselect detects invalid fds], + [gl_cv_func_pselect_detects_ebadf], + [ + AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <sys/time.h> +#if HAVE_SYS_SELECT_H +# include <sys/select.h> +#endif +#include <unistd.h> +#include <errno.h> +]GL_MDA_DEFINES], +[[ + fd_set set; + dup2(0, 16); + FD_ZERO(&set); + FD_SET(16, &set); + close(16); + struct timespec timeout; + timeout.tv_sec = 0; + timeout.tv_nsec = 5000; + return pselect (17, &set, NULL, NULL, &timeout, NULL) != -1 || errno != EBADF; +]])], [gl_cv_func_pselect_detects_ebadf=yes], + [gl_cv_func_pselect_detects_ebadf=no], + [ + case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_pselect_detects_ebadf="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_pselect_detects_ebadf="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_pselect_detects_ebadf="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_pselect_detects_ebadf="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case $gl_cv_func_pselect_detects_ebadf in + *yes) ;; + *) REPLACE_PSELECT=1 ;; + esac + fi + + if test $ac_cv_func_pselect = no || test $gl_cv_sig_pselect = no; then + REPLACE_PSELECT=1 + fi +]) diff --git a/gl/m4/pthread_rwlock_rdlock.m4 b/gl/m4/pthread_rwlock_rdlock.m4 new file mode 100644 index 0000000..66b29f8 --- /dev/null +++ b/gl/m4/pthread_rwlock_rdlock.m4 @@ -0,0 +1,185 @@ +# pthread_rwlock_rdlock.m4 serial 5 +dnl Copyright (C) 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Inspired by +dnl https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_rdlock/2-2.c +dnl by Intel Corporation. + +dnl Test whether in a situation where +dnl - an rwlock is taken by a reader and has a writer waiting, +dnl - an additional reader requests the lock, +dnl - the waiting writer and the requesting reader threads have the same +dnl priority, +dnl the requesting reader thread gets blocked, so that at some point the +dnl waiting writer can acquire the lock. +dnl Without such a guarantee, when there a N readers and each of the readers +dnl spends more than 1/Nth of the time with the lock held, there is a high +dnl probability that the waiting writer will not get the lock in a given finite +dnl time, a phenomenon called "writer starvation". +dnl Without such a guarantee, applications have a hard time avoiding writer +dnl starvation. +dnl +dnl POSIX:2017 makes this requirement only for implementations that support TPS +dnl (Thread Priority Scheduling) and only for the scheduling policies SCHED_FIFO +dnl and SCHED_RR, see +dnl https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_rwlock_rdlock.html +dnl but this test verifies the guarantee regardless of TPS and regardless of +dnl scheduling policy. +dnl Glibc does not provide this guarantee (and never will on Linux), see +dnl https://sourceware.org/bugzilla/show_bug.cgi?id=13701 +dnl https://bugzilla.redhat.com/show_bug.cgi?id=1410052 +AC_DEFUN([gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], +[ + AC_REQUIRE([gl_THREADLIB_EARLY]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether pthread_rwlock_rdlock prefers a writer to a reader], + [gl_cv_pthread_rwlock_rdlock_prefer_writer], + [save_LIBS="$LIBS" + LIBS="$LIBS $LIBMULTITHREAD" + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <errno.h> +#include <pthread.h> +#include <stdlib.h> +#include <unistd.h> + +#define SUCCEED() exit (0) +#define FAILURE() exit (1) +#define UNEXPECTED(n) (exit (10 + (n))) + +/* The main thread creates the waiting writer and the requesting reader threads + in the default way; this guarantees that they have the same priority. + We can reuse the main thread as first reader thread. */ + +static pthread_rwlock_t lock; +static pthread_t reader1; +static pthread_t writer; +static pthread_t reader2; +static pthread_t timer; +/* Used to pass control from writer to reader2 and from reader2 to timer, + as in a relay race. + Passing control from one running thread to another running thread + is most likely faster than to create the second thread. */ +static pthread_mutex_t baton; + +static void * +timer_func (void *ignored) +{ + /* Step 13 (can be before or after step 12): + The timer thread takes the baton, then waits a moment to make sure + it can tell whether the second reader thread is blocked at step 12. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (13); + usleep (100000); + /* By the time we get here, it's clear that the second reader thread is + blocked at step 12. This is the desired behaviour. */ + SUCCEED (); +} + +static void * +reader2_func (void *ignored) +{ + int err; + + /* Step 8 (can be before or after step 7): + The second reader thread takes the baton, then waits a moment to make sure + the writer thread has reached step 7. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (8); + usleep (100000); + /* Step 9: The second reader thread requests the lock. */ + err = pthread_rwlock_tryrdlock (&lock); + if (err == 0) + FAILURE (); + else if (err != EBUSY) + UNEXPECTED (9); + /* Step 10: Launch a timer, to test whether the next call blocks. */ + if (pthread_create (&timer, NULL, timer_func, NULL)) + UNEXPECTED (10); + /* Step 11: Release the baton. */ + if (pthread_mutex_unlock (&baton)) + UNEXPECTED (11); + /* Step 12: The second reader thread requests the lock. */ + err = pthread_rwlock_rdlock (&lock); + if (err == 0) + FAILURE (); + else + UNEXPECTED (12); +} + +static void * +writer_func (void *ignored) +{ + /* Step 4: Take the baton, so that the second reader thread does not go ahead + too early. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (4); + /* Step 5: Create the second reader thread. */ + if (pthread_create (&reader2, NULL, reader2_func, NULL)) + UNEXPECTED (5); + /* Step 6: Release the baton. */ + if (pthread_mutex_unlock (&baton)) + UNEXPECTED (6); + /* Step 7: The writer thread requests the lock. */ + if (pthread_rwlock_wrlock (&lock)) + UNEXPECTED (7); + return NULL; +} + +int +main () +{ + reader1 = pthread_self (); + + /* Step 1: The main thread initializes the lock and the baton. */ + if (pthread_rwlock_init (&lock, NULL)) + UNEXPECTED (1); + if (pthread_mutex_init (&baton, NULL)) + UNEXPECTED (1); + /* Step 2: The main thread acquires the lock as a reader. */ + if (pthread_rwlock_rdlock (&lock)) + UNEXPECTED (2); + /* Step 3: Create the writer thread. */ + if (pthread_create (&writer, NULL, writer_func, NULL)) + UNEXPECTED (3); + /* Job done. Go to sleep. */ + for (;;) + { + sleep (1); + } +} +]])], + [gl_cv_pthread_rwlock_rdlock_prefer_writer=yes], + [gl_cv_pthread_rwlock_rdlock_prefer_writer=no], + [case "$host_os" in + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess no on bionic systems. + *-android*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess yes on native Windows with the mingw-w64 winpthreads library. + # Guess no on native Windows with the gnulib windows-rwlock module. + mingw*) if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then + gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing yes" + else + gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" + fi + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_pthread_rwlock_rdlock_prefer_writer="$gl_cross_guess_normal" ;; + esac + ]) + LIBS="$save_LIBS" + ]) + case "$gl_cv_pthread_rwlock_rdlock_prefer_writer" in + *yes) + AC_DEFINE([HAVE_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], [1], + [Define if the 'pthread_rwlock_rdlock' function prefers a writer to a reader.]) + ;; + esac +]) diff --git a/gl/m4/pthread_sigmask.m4 b/gl/m4/pthread_sigmask.m4 new file mode 100644 index 0000000..2779528 --- /dev/null +++ b/gl/m4/pthread_sigmask.m4 @@ -0,0 +1,280 @@ +# pthread_sigmask.m4 serial 22 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + + AC_CHECK_FUNCS_ONCE([pthread_sigmask]) + + dnl On MinGW pthread_sigmask is just a macro which always returns 0. + dnl It does not exist as a real function, which is required by POSIX. + AC_CACHE_CHECK([whether pthread_sigmask is a macro], + [gl_cv_func_pthread_sigmask_macro], + [AC_EGREP_CPP([headers_define_pthread_sigmask], [ +#include <pthread.h> +#include <signal.h> +#ifdef pthread_sigmask + headers_define_pthread_sigmask +#endif], + [gl_cv_func_pthread_sigmask_macro=yes], + [gl_cv_func_pthread_sigmask_macro=no]) + ]) + + PTHREAD_SIGMASK_LIB= + + if test $gl_cv_func_pthread_sigmask_macro = yes; then + dnl pthread_sigmask is a dummy macro. + HAVE_PTHREAD_SIGMASK=0 + dnl Make sure to '#undef pthread_sigmask' before defining it. + REPLACE_PTHREAD_SIGMASK=1 + else + dnl Test whether the gnulib module 'threadlib' is in use. + dnl Some packages like Emacs use --avoid=threadlib. + dnl Write the symbol in such a way that it does not cause 'aclocal' to pick + dnl the threadlib.m4 file that is installed in $PREFIX/share/aclocal/. + m4_ifdef([gl_][THREADLIB], [ + AC_REQUIRE([gl_][THREADLIB]) + + if test "$gl_threads_api" = posix; then + if test $ac_cv_func_pthread_sigmask = yes; then + dnl pthread_sigmask is available without -lpthread. + : + else + if test -n "$LIBMULTITHREAD"; then + AC_CACHE_CHECK([for pthread_sigmask in $LIBMULTITHREAD], + [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD], + [gl_save_LIBS="$LIBS" + LIBS="$LIBS $LIBMULTITHREAD" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <pthread.h> + #include <signal.h> + ]], + [[return pthread_sigmask (0, (sigset_t *) 0, (sigset_t *) 0);]]) + ], + [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=yes], + [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=no]) + LIBS="$gl_save_LIBS" + ]) + if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then + dnl pthread_sigmask is available with -pthread or -lpthread. + PTHREAD_SIGMASK_LIB="$LIBMULTITHREAD" + else + dnl pthread_sigmask is not available at all. + HAVE_PTHREAD_SIGMASK=0 + fi + else + dnl pthread_sigmask is not available at all. + HAVE_PTHREAD_SIGMASK=0 + fi + fi + else + dnl pthread_sigmask may exist but does not interoperate with the chosen + dnl multithreading facility. + if test $ac_cv_func_pthread_sigmask = yes; then + REPLACE_PTHREAD_SIGMASK=1 + else + HAVE_PTHREAD_SIGMASK=0 + fi + fi + ], [ + dnl The module 'threadlib' is not in use, due to --avoid=threadlib being + dnl specified. + dnl The package either has prepared CPPFLAGS and LIBS for use of + dnl POSIX:2008 threads, or wants to build single-threaded programs. + if test $ac_cv_func_pthread_sigmask = yes; then + dnl pthread_sigmask exists and does not require extra libraries. + dnl Assume that it is declared. + : + else + dnl pthread_sigmask either does not exist or needs extra libraries. + HAVE_PTHREAD_SIGMASK=0 + dnl Define the symbol rpl_pthread_sigmask, not pthread_sigmask, + dnl so as to not accidentally override the system's pthread_sigmask + dnl symbol from libpthread. This is necessary on IRIX 6.5. + REPLACE_PTHREAD_SIGMASK=1 + fi + ]) + fi + + AC_SUBST([PTHREAD_SIGMASK_LIB]) + dnl For backward compatibility. + LIB_PTHREAD_SIGMASK="$PTHREAD_SIGMASK_LIB" + AC_SUBST([LIB_PTHREAD_SIGMASK]) + dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when + dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the + dnl same. + + dnl Now test for some bugs in the system function. + if test $HAVE_PTHREAD_SIGMASK = 1; then + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + dnl On FreeBSD 13.0, MidnightBSD 1.1, HP-UX 11.31, Solaris 9, in programs + dnl that are not linked with -lpthread, the pthread_sigmask() function + dnl always returns 0 and has no effect. + if test -z "$PTHREAD_SIGMASK_LIB"; then + case " $LIBS " in + *' -pthread '*) ;; + *' -lpthread '*) ;; + *) + AC_CACHE_CHECK([whether pthread_sigmask works without -lpthread], + [gl_cv_func_pthread_sigmask_in_libc_works], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <pthread.h> + #include <signal.h> + #include <stddef.h> + int main () + { + sigset_t set; + sigemptyset (&set); + return pthread_sigmask (1729, &set, NULL) != 0; + }]])], + [gl_cv_func_pthread_sigmask_in_libc_works=no], + [gl_cv_func_pthread_sigmask_in_libc_works=yes], + [ + changequote(,)dnl + case "$host_os" in + freebsd* | midnightbsd* | hpux* | solaris | solaris2.[2-9]*) + gl_cv_func_pthread_sigmask_in_libc_works="guessing no";; + *) + gl_cv_func_pthread_sigmask_in_libc_works="guessing yes";; + esac + changequote([,])dnl + ]) + ]) + case "$gl_cv_func_pthread_sigmask_in_libc_works" in + *no) + REPLACE_PTHREAD_SIGMASK=1 + AC_DEFINE([PTHREAD_SIGMASK_INEFFECTIVE], [1], + [Define to 1 if pthread_sigmask may return 0 and have no effect.]) + ;; + esac;; + esac + fi + + dnl On Cygwin 1.7.5, the pthread_sigmask() has a wrong return value + dnl convention: Upon failure, it returns -1 and sets errno. + AC_CACHE_CHECK([whether pthread_sigmask returns error numbers], + [gl_cv_func_pthread_sigmask_return_works], + [ + gl_save_LIBS="$LIBS" + LIBS="$LIBS $PTHREAD_SIGMASK_LIB" + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <pthread.h> +#include <signal.h> +#include <stddef.h> +int main () +{ + sigset_t set; + sigemptyset (&set); + if (pthread_sigmask (1729, &set, NULL) == -1) + return 1; + return 0; +}]])], + [gl_cv_func_pthread_sigmask_return_works=yes], + [gl_cv_func_pthread_sigmask_return_works=no], + [case "$host_os" in + cygwin*) + gl_cv_func_pthread_sigmask_return_works="guessing no";; + *) + gl_cv_func_pthread_sigmask_return_works="guessing yes";; + esac + ]) + LIBS="$gl_save_LIBS" + ]) + case "$gl_cv_func_pthread_sigmask_return_works" in + *no) + REPLACE_PTHREAD_SIGMASK=1 + AC_DEFINE([PTHREAD_SIGMASK_FAILS_WITH_ERRNO], [1], + [Define to 1 if pthread_sigmask(), when it fails, returns -1 and sets errno.]) + ;; + esac + + dnl On IRIX 6.5, in a single-threaded program, pending signals are not + dnl immediately delivered when they are unblocked through pthread_sigmask, + dnl only a little while later. + AC_CACHE_CHECK([whether pthread_sigmask unblocks signals correctly], + [gl_cv_func_pthread_sigmask_unblock_works], + [ + case "$host_os" in + irix*) + gl_cv_func_pthread_sigmask_unblock_works="guessing no";; + *) + gl_cv_func_pthread_sigmask_unblock_works="guessing yes";; + esac + m4_ifdef([gl_][THREADLIB], + [dnl Link against $LIBMULTITHREAD, not only $PTHREAD_SIGMASK_LIB. + dnl Otherwise we get a false positive on those platforms where + dnl $gl_cv_func_pthread_sigmask_in_libc_works is "no". + gl_save_LIBS=$LIBS + LIBS="$LIBS $LIBMULTITHREAD"]) + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <limits.h> +#include <pthread.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +]GL_MDA_DEFINES[ +static volatile int sigint_occurred; +static void +sigint_handler (int sig) +{ + sigint_occurred++; +} +int main () +{ + sigset_t set; + pid_t pid = getpid (); + char command[80]; + if (LONG_MAX < pid) + return 6; + signal (SIGINT, sigint_handler); + sigemptyset (&set); + sigaddset (&set, SIGINT); + if (!(pthread_sigmask (SIG_BLOCK, &set, NULL) == 0)) + return 1; + sprintf (command, "sh -c 'sleep 1; kill -INT %ld' &", (long) pid); + if (!(system (command) == 0)) + return 2; + sleep (2); + if (!(sigint_occurred == 0)) + return 3; + if (!(pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0)) + return 4; + if (!(sigint_occurred == 1)) /* This fails on IRIX. */ + return 5; + return 0; +}]])], + [:], + [gl_cv_func_pthread_sigmask_unblock_works=no], + [:]) + m4_ifdef([gl_][THREADLIB], [LIBS=$gl_save_LIBS]) + ]) + case "$gl_cv_func_pthread_sigmask_unblock_works" in + *no) + REPLACE_PTHREAD_SIGMASK=1 + AC_DEFINE([PTHREAD_SIGMASK_UNBLOCK_BUG], [1], + [Define to 1 if pthread_sigmask() unblocks signals incorrectly.]) + ;; + esac + fi +]) + +# Prerequisite of lib/pthread_sigmask.c. +AC_DEFUN([gl_PREREQ_PTHREAD_SIGMASK], +[ + if test $HAVE_PTHREAD_SIGMASK = 1; then + AC_DEFINE([HAVE_PTHREAD_SIGMASK], [1], + [Define to 1 if the pthread_sigmask function can be used (despite bugs).]) + fi +]) diff --git a/gl/m4/raise.m4 b/gl/m4/raise.m4 new file mode 100644 index 0000000..f20c439 --- /dev/null +++ b/gl/m4/raise.m4 @@ -0,0 +1,36 @@ +# raise.m4 serial 4 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_RAISE], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS([raise]) + if test $ac_cv_func_raise = no; then + HAVE_RAISE=0 + else + m4_ifdef([gl_MSVC_INVAL], [ + AC_REQUIRE([gl_MSVC_INVAL]) + if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then + REPLACE_RAISE=1 + fi + ]) + m4_ifdef([gl_SIGNALBLOCKING], [ + gl_SIGNALBLOCKING + if test $HAVE_POSIX_SIGNALBLOCKING = 0; then + m4_ifdef([gl_SIGNAL_SIGPIPE], [ + gl_SIGNAL_SIGPIPE + if test $gl_cv_header_signal_h_SIGPIPE != yes; then + REPLACE_RAISE=1 + fi + ], [:]) + fi + ]) + fi +]) + +# Prerequisites of lib/raise.c. +AC_DEFUN([gl_PREREQ_RAISE], [:]) diff --git a/gl/m4/rawmemchr.m4 b/gl/m4/rawmemchr.m4 new file mode 100644 index 0000000..a48d829 --- /dev/null +++ b/gl/m4/rawmemchr.m4 @@ -0,0 +1,20 @@ +# rawmemchr.m4 serial 3 +dnl Copyright (C) 2003, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_RAWMEMCHR], +[ + dnl Persuade glibc <string.h> to declare rawmemchr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([rawmemchr]) + if test $ac_cv_func_rawmemchr = no; then + HAVE_RAWMEMCHR=0 + fi +]) + +# Prerequisites of lib/strchrnul.c. +AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:]) diff --git a/gl/m4/readdir.m4 b/gl/m4/readdir.m4 new file mode 100644 index 0000000..81337e2 --- /dev/null +++ b/gl/m4/readdir.m4 @@ -0,0 +1,21 @@ +# readdir.m4 serial 2 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_READDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + + AC_CHECK_FUNCS([readdir]) + if test $ac_cv_func_readdir = no; then + HAVE_READDIR=0 + else + dnl Replace readdir() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_READDIR=1 + fi + fi +]) diff --git a/gl/m4/readlink.m4 b/gl/m4/readlink.m4 new file mode 100644 index 0000000..f1d41d2 --- /dev/null +++ b/gl/m4/readlink.m4 @@ -0,0 +1,120 @@ +# readlink.m4 serial 17 +dnl Copyright (C) 2003, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_READLINK], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_FUNCS_ONCE([readlink]) + if test $ac_cv_func_readlink = no; then + HAVE_READLINK=0 + else + AC_CACHE_CHECK([whether readlink signature is correct], + [gl_cv_decl_readlink_works], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> + /* Cause compilation failure if original declaration has wrong type. */ + ssize_t readlink (const char *, char *, size_t);]])], + [gl_cv_decl_readlink_works=yes], [gl_cv_decl_readlink_works=no])]) + dnl Solaris 9 ignores trailing slash. + dnl FreeBSD 7.2 dereferences only one level of links with trailing slash. + AC_CACHE_CHECK([whether readlink handles trailing slash correctly], + [gl_cv_func_readlink_trailing_slash], + [# We have readlink, so assume ln -s works. + ln -s conftest.no-such conftest.link + ln -s conftest.link conftest.lnk2 + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> +]], [[char buf[20]; + return readlink ("conftest.lnk2/", buf, sizeof buf) != -1;]])], + [gl_cv_func_readlink_trailing_slash=yes], + [gl_cv_func_readlink_trailing_slash=no], + [case "$host_os" in + # Guess yes on Linux or glibc systems. + linux-* | linux | *-gnu* | gnu*) + gl_cv_func_readlink_trailing_slash="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) + gl_cv_func_readlink_trailing_slash="guessing yes" ;; + # Guess no on AIX or HP-UX. + aix* | hpux*) + gl_cv_func_readlink_trailing_slash="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_readlink_trailing_slash="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.link conftest.lnk2]) + case "$gl_cv_func_readlink_trailing_slash" in + *yes) + if test "$gl_cv_decl_readlink_works" != yes; then + REPLACE_READLINK=1 + fi + ;; + *) + AC_DEFINE([READLINK_TRAILING_SLASH_BUG], [1], [Define to 1 if readlink + fails to recognize a trailing slash.]) + REPLACE_READLINK=1 + ;; + esac + + AC_CACHE_CHECK([whether readlink truncates results correctly], + [gl_cv_func_readlink_truncate], + [# We have readlink, so assume ln -s works. + ln -s ab conftest.link + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> +]], [[char c; + return readlink ("conftest.link", &c, 1) != 1;]])], + [gl_cv_func_readlink_truncate=yes], + [gl_cv_func_readlink_truncate=no], + [case "$host_os" in + # Guess yes on Linux or glibc systems. + linux-* | linux | *-gnu* | gnu*) + gl_cv_func_readlink_truncate="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) + gl_cv_func_readlink_truncate="guessing yes" ;; + # Guess no on AIX or HP-UX. + aix* | hpux*) + gl_cv_func_readlink_truncate="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_readlink_truncate="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.link conftest.lnk2]) + case $gl_cv_func_readlink_truncate in + *yes) + if test "$gl_cv_decl_readlink_works" != yes; then + REPLACE_READLINK=1 + fi + ;; + *) + AC_DEFINE([READLINK_TRUNCATE_BUG], [1], [Define to 1 if readlink + sets errno instead of truncating a too-long link.]) + REPLACE_READLINK=1 + ;; + esac + fi +]) + +# Like gl_FUNC_READLINK, except prepare for separate compilation +# (no REPLACE_READLINK, no AC_LIBOBJ). +AC_DEFUN([gl_FUNC_READLINK_SEPARATE], +[ + AC_CHECK_FUNCS_ONCE([readlink]) + gl_PREREQ_READLINK +]) + +# Prerequisites of lib/readlink.c. +AC_DEFUN([gl_PREREQ_READLINK], +[ + : +]) diff --git a/gl/m4/readlinkat.m4 b/gl/m4/readlinkat.m4 new file mode 100644 index 0000000..5c51356 --- /dev/null +++ b/gl/m4/readlinkat.m4 @@ -0,0 +1,42 @@ +# serial 8 +# See if we need to provide readlinkat replacement. + +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Eric Blake. + +AC_DEFUN([gl_FUNC_READLINKAT], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + gl_CHECK_FUNCS_ANDROID([readlinkat], [[#include <unistd.h>]]) + AC_REQUIRE([gl_FUNC_READLINK]) + if test $ac_cv_func_readlinkat = no; then + HAVE_READLINKAT=0 + case "$gl_cv_onwards_func_readlinkat" in + future*) REPLACE_READLINKAT=1 ;; + esac + else + AC_CACHE_CHECK([whether readlinkat signature is correct], + [gl_cv_decl_readlinkat_works], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> + /* Check whether original declaration has correct type. */ + ssize_t readlinkat (int, char const *, char *, size_t);]])], + [gl_cv_decl_readlinkat_works=yes], + [gl_cv_decl_readlinkat_works=no])]) + # Assume readlinkat has the same bugs as readlink, + # as is the case on OS X 10.10 with trailing slashes. + case $gl_cv_decl_readlinkat_works,$gl_cv_func_readlink_trailing_slash,$gl_cv_func_readlink_truncate in + *yes,*yes,*yes) + ;; + *) + REPLACE_READLINKAT=1 + ;; + esac + fi +]) diff --git a/gl/m4/realloc.m4 b/gl/m4/realloc.m4 new file mode 100644 index 0000000..2605391 --- /dev/null +++ b/gl/m4/realloc.m4 @@ -0,0 +1,63 @@ +# realloc.m4 serial 27 +dnl Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# This is adapted with modifications from upstream Autoconf here: +# https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=v2.70#n1455 +AC_DEFUN([_AC_FUNC_REALLOC_IF], +[ + AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles + AC_CACHE_CHECK([whether realloc (0, 0) returns nonnull], + [ac_cv_func_realloc_0_nonnull], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h> + ]], + [[void *p = realloc (0, 0); + int result = !p; + free (p); + return result;]]) + ], + [ac_cv_func_realloc_0_nonnull=yes], + [ac_cv_func_realloc_0_nonnull=no], + [case "$host_os" in + # Guess yes on platforms where we know the result. + *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \ + | gnu* | *-musl* | midipix* | midnightbsd* \ + | hpux* | solaris* | cygwin* | mingw* | msys* ) + ac_cv_func_realloc_0_nonnull="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_realloc_0_nonnull="$gl_cross_guess_normal" ;; + esac + ]) + ]) + AS_CASE([$ac_cv_func_realloc_0_nonnull], [*yes], [$1], [$2]) +])# AC_FUNC_REALLOC + +# gl_FUNC_REALLOC_GNU +# ------------------- +# Replace realloc if it is not compatible with GNU libc. +AC_DEFUN([gl_FUNC_REALLOC_GNU], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_REALLOC_POSIX]) + if test $REPLACE_REALLOC_FOR_REALLOC_GNU = 0; then + _AC_FUNC_REALLOC_IF([], [REPLACE_REALLOC_FOR_REALLOC_GNU=1]) + fi +])# gl_FUNC_REALLOC_GNU + +# gl_FUNC_REALLOC_POSIX +# --------------------- +# Test whether 'realloc' is POSIX compliant (sets errno to ENOMEM when it +# fails, and doesn't mess up with ptrdiff_t overflow), +# and replace realloc if it is not. +AC_DEFUN([gl_FUNC_REALLOC_POSIX], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_MALLOC_POSIX]) + if test $REPLACE_MALLOC_FOR_MALLOC_POSIX = 1; then + REPLACE_REALLOC_FOR_REALLOC_POSIX=1 + fi +]) diff --git a/gl/m4/reallocarray.m4 b/gl/m4/reallocarray.m4 new file mode 100644 index 0000000..6a5b5ab --- /dev/null +++ b/gl/m4/reallocarray.m4 @@ -0,0 +1,26 @@ +# reallocarray.m4 serial 5 +dnl Copyright (C) 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_REALLOCARRAY], +[ + dnl Persuade glibc <stdlib.h> to declare reallocarray. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF]) + gl_CHECK_FUNCS_ANDROID([reallocarray], [[#include <stdlib.h>]]) + if test "$ac_cv_func_reallocarray" = no; then + HAVE_REALLOCARRAY=0 + case "$gl_cv_onwards_func_reallocarray" in + future*) REPLACE_REALLOCARRAY=1 ;; + esac + elif test "$gl_cv_malloc_ptrdiff" = no; then + REPLACE_REALLOCARRAY=1 + fi +]) + +# Prerequisites of lib/reallocarray.c. +AC_DEFUN([gl_PREREQ_REALLOCARRAY], [:]) diff --git a/gl/m4/regex.m4 b/gl/m4/regex.m4 new file mode 100644 index 0000000..7acadc4 --- /dev/null +++ b/gl/m4/regex.m4 @@ -0,0 +1,396 @@ +# serial 74 + +# Copyright (C) 1996-2001, 2003-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl Initially derived from code in GNU grep. +dnl Mostly written by Jim Meyering. + +AC_PREREQ([2.50]) + +AC_DEFUN([gl_REGEX], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_ARG_WITH([included-regex], + [AS_HELP_STRING([[--without-included-regex]], + [don't compile regex; this is the default on systems + with recent-enough versions of the GNU C Library + (use with caution on other systems).])]) + + case $with_included_regex in #( + yes|no) ac_use_included_regex=$with_included_regex + ;; + '') + # If the system regex support is good enough that it passes the + # following run test, then default to *not* using the included regex.c. + # If cross compiling, assume the test would fail and use the included + # regex.c. + AC_CHECK_DECLS_ONCE([alarm]) + AC_CHECK_HEADERS_ONCE([malloc.h]) + AC_CACHE_CHECK([for working re_compile_pattern], + [gl_cv_func_re_compile_pattern_working], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <regex.h> + + #include <locale.h> + #include <limits.h> + #include <string.h> + + #if defined M_CHECK_ACTION || HAVE_DECL_ALARM + # include <signal.h> + # include <unistd.h> + #endif + + #if HAVE_MALLOC_H + # include <malloc.h> + #endif + + #ifdef M_CHECK_ACTION + /* Exit with distinguishable exit code. */ + static void sigabrt_no_core (int sig) { raise (SIGTERM); } + #endif + ]], + [[int result = 0; + static struct re_pattern_buffer regex; + unsigned char folded_chars[UCHAR_MAX + 1]; + int i; + const char *s; + struct re_registers regs; + + /* Some builds of glibc go into an infinite loop on this + test. Use alarm to force death, and mallopt to avoid + malloc recursion in diagnosing the corrupted heap. */ +#if HAVE_DECL_ALARM + signal (SIGALRM, SIG_DFL); + alarm (2); +#endif +#ifdef M_CHECK_ACTION + signal (SIGABRT, sigabrt_no_core); + mallopt (M_CHECK_ACTION, 2); +#endif + + if (setlocale (LC_ALL, "en_US.UTF-8")) + { + { + /* https://sourceware.org/ml/libc-hacker/2006-09/msg00008.html + This test needs valgrind to catch the bug on Debian + GNU/Linux 3.1 x86, but it might catch the bug better + on other platforms and it shouldn't hurt to try the + test here. */ + static char const pat[] = "insert into"; + static char const data[] = + "\xFF\0\x12\xA2\xAA\xC4\xB1,K\x12\xC4\xB1*\xACK"; + re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE + | RE_ICASE); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern (pat, sizeof pat - 1, ®ex); + if (s) + result |= 1; + else + { + if (re_search (®ex, data, sizeof data - 1, + 0, sizeof data - 1, ®s) + != -1) + result |= 1; + regfree (®ex); + } + } + + { + /* This test is from glibc bug 15078. + The test case is from Andreas Schwab in + <https://sourceware.org/ml/libc-alpha/2013-01/msg00967.html>. + */ + static char const pat[] = "[^x]x"; + static char const data[] = + /* <U1000><U103B><U103D><U1014><U103A><U102F><U1015><U103A> */ + "\xe1\x80\x80" + "\xe1\x80\xbb" + "\xe1\x80\xbd" + "\xe1\x80\x94" + "\xe1\x80\xba" + "\xe1\x80\xaf" + "\xe1\x80\x95" + "\xe1\x80\xba" + "x"; + re_set_syntax (0); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern (pat, sizeof pat - 1, ®ex); + if (s) + result |= 1; + else + { + i = re_search (®ex, data, sizeof data - 1, + 0, sizeof data - 1, 0); + if (i != 0 && i != 21) + result |= 1; + regfree (®ex); + } + } + + if (! setlocale (LC_ALL, "C")) + return 1; + } + + /* This test is from glibc bug 3957, reported by Andrew Mackey. */ + re_set_syntax (RE_SYNTAX_EGREP | RE_HAT_LISTS_NOT_NEWLINE); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("a[^x]b", 6, ®ex); + if (s) + result |= 2; + else + { + /* This should fail, but succeeds for glibc-2.5. */ + if (re_search (®ex, "a\nb", 3, 0, 3, ®s) != -1) + result |= 2; + regfree (®ex); + } + + /* This regular expression is from Spencer ere test number 75 + in grep-2.3. */ + re_set_syntax (RE_SYNTAX_POSIX_EGREP); + memset (®ex, 0, sizeof regex); + for (i = 0; i <= UCHAR_MAX; i++) + folded_chars[i] = i; + regex.translate = folded_chars; + s = re_compile_pattern ("a[[:@:>@:]]b\n", 11, ®ex); + /* This should fail with _Invalid character class name_ error. */ + if (!s) + { + result |= 4; + regfree (®ex); + } + + /* Ensure that [b-a] is diagnosed as invalid, when + using RE_NO_EMPTY_RANGES. */ + re_set_syntax (RE_SYNTAX_POSIX_EGREP | RE_NO_EMPTY_RANGES); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("a[b-a]", 6, ®ex); + if (s == 0) + { + result |= 8; + regfree (®ex); + } + + /* This should succeed, but does not for glibc-2.1.3. */ + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("{1", 2, ®ex); + if (s) + result |= 8; + else + regfree (®ex); + + /* The following example is derived from a problem report + against gawk from Jorge Stolfi <stolfi@ic.unicamp.br>. */ + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("[an\371]*n", 7, ®ex); + if (s) + result |= 8; + else + { + /* This should match, but does not for glibc-2.2.1. */ + if (re_match (®ex, "an", 2, 0, ®s) != 2) + result |= 8; + else + { + free (regs.start); + free (regs.end); + } + regfree (®ex); + } + + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("x", 1, ®ex); + if (s) + result |= 8; + else + { + /* glibc-2.2.93 does not work with a negative RANGE argument. */ + if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1) + result |= 8; + else + { + free (regs.start); + free (regs.end); + } + regfree (®ex); + } + + /* The version of regex.c in older versions of gnulib + ignored RE_ICASE. Detect that problem too. */ + re_set_syntax (RE_SYNTAX_EMACS | RE_ICASE); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("x", 1, ®ex); + if (s) + result |= 16; + else + { + if (re_search (®ex, "WXY", 3, 0, 3, ®s) < 0) + result |= 16; + else + { + free (regs.start); + free (regs.end); + } + regfree (®ex); + } + + /* Catch a bug reported by Vin Shelton in + https://lists.gnu.org/r/bug-coreutils/2007-06/msg00089.html + */ + re_set_syntax (RE_SYNTAX_POSIX_BASIC + & ~RE_CONTEXT_INVALID_DUP + & ~RE_NO_EMPTY_RANGES); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("[[:alnum:]_-]\\\\+\$", 16, ®ex); + if (s) + result |= 32; + else + regfree (®ex); + + /* REG_STARTEND was added to glibc on 2004-01-15. + Reject older versions. */ + if (! REG_STARTEND) + result |= 64; + + /* Matching with the compiled form of this regexp would provoke + an assertion failure prior to glibc-2.28: + regexec.c:1375: pop_fail_stack: Assertion 'num >= 0' failed + With glibc-2.28, compilation fails and reports the invalid + back reference. */ + re_set_syntax (RE_SYNTAX_POSIX_EGREP); + memset (®ex, 0, sizeof regex); + s = re_compile_pattern ("0|()0|\\\\1|0", 10, ®ex); + if (!s) + { + memset (®s, 0, sizeof regs); + i = re_search (®ex, "x", 1, 0, 1, ®s); + if (i != -1) + result |= 64; + if (0 <= i) + { + free (regs.start); + free (regs.end); + } + regfree (®ex); + } + else + { + if (strcmp (s, "Invalid back reference")) + result |= 64; + } + + /* glibc bug 11053. */ + re_set_syntax (RE_SYNTAX_POSIX_BASIC); + memset (®ex, 0, sizeof regex); + static char const pat_sub2[] = "\\\\(a*\\\\)*a*\\\\1"; + s = re_compile_pattern (pat_sub2, sizeof pat_sub2 - 1, ®ex); + if (s) + result |= 64; + else + { + memset (®s, 0, sizeof regs); + static char const data[] = "a"; + int datalen = sizeof data - 1; + i = re_search (®ex, data, datalen, 0, datalen, ®s); + if (i != 0) + result |= 64; + else if (regs.num_regs < 2) + result |= 64; + else if (! (regs.start[0] == 0 && regs.end[0] == 1)) + result |= 64; + else if (! (regs.start[1] == 0 && regs.end[1] == 0)) + result |= 64; + regfree (®ex); + free (regs.start); + free (regs.end); + } + +#if 0 + /* It would be nice to reject hosts whose regoff_t values are too + narrow (including glibc on hosts with 64-bit ptrdiff_t and + 32-bit int), but we should wait until glibc implements this + feature. Otherwise, support for equivalence classes and + multibyte collation symbols would always be broken except + when compiling --without-included-regex. */ + if (sizeof (regoff_t) < sizeof (ptrdiff_t) + || sizeof (regoff_t) < sizeof (ssize_t)) + result |= 64; +#endif + + return result; + ]])], + [gl_cv_func_re_compile_pattern_working=yes], + [gl_cv_func_re_compile_pattern_working=no], + [case "$host_os" in + # Guess no on native Windows. + mingw*) gl_cv_func_re_compile_pattern_working="guessing no" ;; + # Otherwise obey --enable-cross-guesses. + *) gl_cv_func_re_compile_pattern_working="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_re_compile_pattern_working" in #( + *yes) ac_use_included_regex=no;; #( + *no) ac_use_included_regex=yes;; + esac + ;; + *) AC_MSG_ERROR([Invalid value for --with-included-regex: $with_included_regex]) + ;; + esac + + if test $ac_use_included_regex = yes; then + AC_DEFINE([_REGEX_INCLUDE_LIMITS_H], [1], + [Define if you want <regex.h> to include <limits.h>, so that it + consistently overrides <limits.h>'s RE_DUP_MAX.]) + AC_DEFINE([_REGEX_LARGE_OFFSETS], [1], + [Define if you want regoff_t to be at least as wide POSIX requires.]) + AC_DEFINE([re_syntax_options], [rpl_re_syntax_options], + [Define to rpl_re_syntax_options if the replacement should be used.]) + AC_DEFINE([re_set_syntax], [rpl_re_set_syntax], + [Define to rpl_re_set_syntax if the replacement should be used.]) + AC_DEFINE([re_compile_pattern], [rpl_re_compile_pattern], + [Define to rpl_re_compile_pattern if the replacement should be used.]) + AC_DEFINE([re_compile_fastmap], [rpl_re_compile_fastmap], + [Define to rpl_re_compile_fastmap if the replacement should be used.]) + AC_DEFINE([re_search], [rpl_re_search], + [Define to rpl_re_search if the replacement should be used.]) + AC_DEFINE([re_search_2], [rpl_re_search_2], + [Define to rpl_re_search_2 if the replacement should be used.]) + AC_DEFINE([re_match], [rpl_re_match], + [Define to rpl_re_match if the replacement should be used.]) + AC_DEFINE([re_match_2], [rpl_re_match_2], + [Define to rpl_re_match_2 if the replacement should be used.]) + AC_DEFINE([re_set_registers], [rpl_re_set_registers], + [Define to rpl_re_set_registers if the replacement should be used.]) + AC_DEFINE([re_comp], [rpl_re_comp], + [Define to rpl_re_comp if the replacement should be used.]) + AC_DEFINE([re_exec], [rpl_re_exec], + [Define to rpl_re_exec if the replacement should be used.]) + AC_DEFINE([regcomp], [rpl_regcomp], + [Define to rpl_regcomp if the replacement should be used.]) + AC_DEFINE([regexec], [rpl_regexec], + [Define to rpl_regexec if the replacement should be used.]) + AC_DEFINE([regerror], [rpl_regerror], + [Define to rpl_regerror if the replacement should be used.]) + AC_DEFINE([regfree], [rpl_regfree], + [Define to rpl_regfree if the replacement should be used.]) + fi +]) + +# Prerequisites of lib/regex.c and lib/regex_internal.c. +AC_DEFUN([gl_PREREQ_REGEX], +[ + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([AC_C_INLINE]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + AC_REQUIRE([gl_EEMALLOC]) + AC_CHECK_HEADERS([libintl.h]) + AC_CHECK_FUNCS_ONCE([isblank iswctype]) + AC_CHECK_DECLS([isblank], [], [], [[#include <ctype.h>]]) +]) diff --git a/gl/m4/rename.m4 b/gl/m4/rename.m4 new file mode 100644 index 0000000..efabf1a --- /dev/null +++ b/gl/m4/rename.m4 @@ -0,0 +1,261 @@ +# serial 34 + +# Copyright (C) 2001, 2003, 2005-2006, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Volker Borchert. +dnl Determine whether rename works for source file names with a trailing slash. +dnl The rename from SunOS 4.1.1_U1 doesn't. +dnl +dnl If it doesn't, then define RENAME_TRAILING_SLASH_BUG and arrange +dnl to compile the wrapper function. +dnl + +AC_DEFUN([gl_FUNC_RENAME], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([lstat]) + + dnl Solaris 11.3, AIX 7.1 mistakenly allow rename("file","name/"). + dnl NetBSD 1.6 mistakenly forbids rename("dir","name/"). + dnl FreeBSD 7.2 mistakenly allows rename("file","link-to-file/"). + dnl The Solaris bug can be worked around without stripping + dnl trailing slash, while the NetBSD bug requires stripping; + dnl the two conditions can be distinguished by whether hard + dnl links are also broken. + AC_CACHE_CHECK([whether rename honors trailing slash on destination], + [gl_cv_func_rename_slash_dst_works], + [rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk + touch conftest.f && touch conftest.f1 && mkdir conftest.d1 || + AC_MSG_ERROR([cannot create temporary files]) + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.f conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +# include <stdio.h> +# include <stdlib.h> + ]], + [[int result = 0; + if (rename ("conftest.f1", "conftest.f2/") == 0) + result |= 1; + if (rename ("conftest.d1", "conftest.d2/") != 0) + result |= 2; +#if HAVE_LSTAT + if (rename ("conftest.f", "conftest.lnk/") == 0) + result |= 4; +#endif + return result; + ]])], + [gl_cv_func_rename_slash_dst_works=yes], + [gl_cv_func_rename_slash_dst_works=no], + dnl When crosscompiling, assume rename is broken. + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_slash_dst_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_rename_slash_dst_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_slash_dst_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rename_slash_dst_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_slash_dst_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk + ]) + case "$gl_cv_func_rename_slash_dst_works" in + *yes) ;; + *) + REPLACE_RENAME=1 + AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1], + [Define if rename does not correctly handle slashes on the destination + argument, such as on Solaris 11 or NetBSD 1.6.]) + ;; + esac + + dnl SunOS 4.1.1_U1 mistakenly forbids rename("dir/","name"). + dnl Solaris 9 mistakenly allows rename("file/","name"). + dnl FreeBSD 7.2 mistakenly allows rename("link-to-file/","name"). + dnl These bugs require stripping trailing slash to avoid corrupting + dnl symlinks with a trailing slash. + AC_CACHE_CHECK([whether rename honors trailing slash on source], + [gl_cv_func_rename_slash_src_works], + [rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk + touch conftest.f && touch conftest.f1 && mkdir conftest.d1 || + AC_MSG_ERROR([cannot create temporary files]) + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.f conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +# include <stdio.h> +# include <stdlib.h> + ]], + [[int result = 0; + if (rename ("conftest.f1/", "conftest.d3") == 0) + result |= 1; + if (rename ("conftest.d1/", "conftest.d2") != 0) + result |= 2; +#if HAVE_LSTAT + if (rename ("conftest.lnk/", "conftest.f") == 0) + result |= 4; +#endif + return result; + ]])], + [gl_cv_func_rename_slash_src_works=yes], + [gl_cv_func_rename_slash_src_works=no], + dnl When crosscompiling, assume rename is broken. + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_slash_src_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk + ]) + case "$gl_cv_func_rename_slash_src_works" in + *yes) ;; + *) + REPLACE_RENAME=1 + AC_DEFINE([RENAME_TRAILING_SLASH_SOURCE_BUG], [1], + [Define if rename does not correctly handle slashes on the source + argument, such as on Solaris 9 or cygwin 1.5.]) + ;; + esac + + dnl NetBSD 1.6 and cygwin 1.5.x mistakenly reduce hard link count + dnl on rename("h1","h2"). + dnl This bug requires stat'ting targets prior to attempting rename. + AC_CHECK_FUNCS_ONCE([link]) + AC_CACHE_CHECK([whether rename manages hard links correctly], + [gl_cv_func_rename_link_works], + [if test $ac_cv_func_link = yes; then + if test $cross_compiling != yes; then + rm -rf conftest.f conftest.f1 conftest.f2 + if touch conftest.f conftest.f2 && ln conftest.f conftest.f1 && + set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +# include <errno.h> +# include <stdio.h> +# include <stdlib.h> +# include <unistd.h> + ]GL_MDA_DEFINES], + [[int result = 0; + if (rename ("conftest.f", "conftest.f1")) + result |= 1; + if (unlink ("conftest.f1")) + result |= 2; + + /* Allow either the POSIX-required behavior, where the + previous rename kept conftest.f, or the (better) NetBSD + behavior, where it removed conftest.f. */ + if (rename ("conftest.f", "conftest.f") != 0 + && errno != ENOENT) + result |= 4; + + if (rename ("conftest.f1", "conftest.f1") == 0) + result |= 8; + if (rename ("conftest.f2", "conftest.f2") != 0) + result |= 16; + return result; + ]])], + [gl_cv_func_rename_link_works=yes], + [gl_cv_func_rename_link_works=no], + [dnl We don't get here. + : + ]) + else + gl_cv_func_rename_link_works="guessing no" + fi + rm -rf conftest.f conftest.f1 conftest.f2 + else + dnl When crosscompiling, assume rename is broken. + case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_link_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_rename_link_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_link_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_rename_link_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_link_works="$gl_cross_guess_normal" ;; + esac + fi + else + gl_cv_func_rename_link_works=yes + fi + ]) + case "$gl_cv_func_rename_link_works" in + *yes) ;; + *) + REPLACE_RENAME=1 + AC_DEFINE([RENAME_HARD_LINK_BUG], [1], + [Define if rename fails to leave hard links alone, as on NetBSD 1.6 + or Cygwin 1.5.]) + ;; + esac + + dnl Cygwin 1.5.x mistakenly allows rename("dir","file"). + dnl mingw mistakenly forbids rename("dir1","dir2"). + dnl These bugs require stripping trailing slash to avoid corrupting + dnl symlinks with a trailing slash. + AC_CACHE_CHECK([whether rename manages existing destinations correctly], + [gl_cv_func_rename_dest_works], + [rm -rf conftest.f conftest.d1 conftest.d2 + touch conftest.f && mkdir conftest.d1 conftest.d2 || + AC_MSG_ERROR([cannot create temporary files]) + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +# include <stdio.h> +# include <stdlib.h> + ]], + [[int result = 0; + if (rename ("conftest.d1", "conftest.d2") != 0) + result |= 1; + if (rename ("conftest.d2", "conftest.f") == 0) + result |= 2; + return result; + ]])], + [gl_cv_func_rename_dest_works=yes], + [gl_cv_func_rename_dest_works=no], + dnl When crosscompiling, assume rename is broken. + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_dest_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_dest_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rename_dest_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_dest_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.f conftest.d1 conftest.d2 + ]) + case "$gl_cv_func_rename_dest_works" in + *yes) ;; + *) + REPLACE_RENAME=1 + AC_DEFINE([RENAME_DEST_EXISTS_BUG], [1], + [Define if rename does not work when the destination file exists, + as on Cygwin 1.5 or Windows.]) + ;; + esac +]) diff --git a/gl/m4/renameat.m4 b/gl/m4/renameat.m4 new file mode 100644 index 0000000..3780578 --- /dev/null +++ b/gl/m4/renameat.m4 @@ -0,0 +1,26 @@ +# serial 4 +# See if we need to provide renameat replacement. + +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Eric Blake. + +AC_DEFUN([gl_FUNC_RENAMEAT], +[ + AC_REQUIRE([gl_FUNC_OPENAT]) + AC_REQUIRE([gl_FUNC_RENAME]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS([linux/fs.h]) + AC_CHECK_FUNCS_ONCE([renameat]) + if test $ac_cv_func_renameat = no; then + HAVE_RENAMEAT=0 + elif test $REPLACE_RENAME = 1; then + dnl Solaris 9 and 10 have the same bugs in renameat as in rename. + REPLACE_RENAMEAT=1 + fi + gl_CHECK_FUNCS_ANDROID([renameat2], [[#include <stdio.h>]]) +]) diff --git a/gl/m4/rewinddir.m4 b/gl/m4/rewinddir.m4 new file mode 100644 index 0000000..d0d24de --- /dev/null +++ b/gl/m4/rewinddir.m4 @@ -0,0 +1,21 @@ +# rewinddir.m4 serial 2 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_REWINDDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + + AC_CHECK_FUNCS([rewinddir]) + if test $ac_cv_func_rewinddir = no; then + HAVE_REWINDDIR=0 + else + dnl Replace rewinddir() on native Windows, to support fdopendir(). + AC_REQUIRE([gl_DIRENT_DIR]) + if test $DIR_HAS_FD_MEMBER = 0; then + REPLACE_REWINDDIR=1 + fi + fi +]) diff --git a/gl/m4/rmdir.m4 b/gl/m4/rmdir.m4 new file mode 100644 index 0000000..b19c890 --- /dev/null +++ b/gl/m4/rmdir.m4 @@ -0,0 +1,56 @@ +# rmdir.m4 serial 18 +dnl Copyright (C) 2002, 2005, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_RMDIR], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl Detect cygwin 1.5.x bug. + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CACHE_CHECK([whether rmdir works], [gl_cv_func_rmdir_works], + [mkdir conftest.dir + touch conftest.file + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdio.h> + #include <errno.h> + #if HAVE_UNISTD_H + # include <unistd.h> + #else /* on Windows with MSVC */ + # include <direct.h> + #endif + ]GL_MDA_DEFINES], + [[int result = 0; + if (!rmdir ("conftest.file/")) + result |= 1; + else if (errno != ENOTDIR) + result |= 2; + if (!rmdir ("conftest.dir/./")) + result |= 4; + return result; + ]])], + [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_rmdir_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rmdir_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rmdir_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -rf conftest.dir conftest.file]) + case "$gl_cv_func_rmdir_works" in + *yes) ;; + *) + REPLACE_RMDIR=1 + ;; + esac +]) diff --git a/gl/m4/save-cwd.m4 b/gl/m4/save-cwd.m4 new file mode 100644 index 0000000..2e6cf58 --- /dev/null +++ b/gl/m4/save-cwd.m4 @@ -0,0 +1,11 @@ +# serial 10 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Prerequisites for lib/save-cwd.c. +AC_DEFUN([gl_SAVE_CWD], +[ + AC_CHECK_FUNCS_ONCE([fchdir]) +]) diff --git a/gl/m4/select.m4 b/gl/m4/select.m4 new file mode 100644 index 0000000..88861af --- /dev/null +++ b/gl/m4/select.m4 @@ -0,0 +1,122 @@ +# select.m4 serial 15 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SELECT], +[ + AC_REQUIRE([gl_SYS_SELECT_H]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SOCKETS]) + if test "$ac_cv_header_winsock2_h" = yes; then + REPLACE_SELECT=1 + else + dnl On Interix 3.5, select(0, NULL, NULL, NULL, timeout) fails with error + dnl EFAULT. + AC_CHECK_HEADERS_ONCE([sys/select.h]) + AC_CACHE_CHECK([whether select supports a 0 argument], + [gl_cv_func_select_supports0], + [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <sys/types.h> +#include <sys/time.h> +#if HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +int main () +{ + struct timeval timeout; + timeout.tv_sec = 0; + timeout.tv_usec = 5; + return select (0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &timeout) < 0; +}]])], [gl_cv_func_select_supports0=yes], [gl_cv_func_select_supports0=no], + [ +changequote(,)dnl + case "$host_os" in + # Guess no on Interix. + interix*) gl_cv_func_select_supports0="guessing no";; + # Guess yes otherwise. + *) gl_cv_func_select_supports0="guessing yes";; + esac +changequote([,])dnl + ]) + ]) + case "$gl_cv_func_select_supports0" in + *yes) ;; + *) REPLACE_SELECT=1 ;; + esac + + dnl On FreeBSD 8.2, select() doesn't always reject bad fds. + AC_CACHE_CHECK([whether select detects invalid fds], + [gl_cv_func_select_detects_ebadf], + [ + AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <sys/time.h> +#if HAVE_SYS_SELECT_H +# include <sys/select.h> +#endif +#include <unistd.h> +#include <errno.h> +]GL_MDA_DEFINES], +[[ + fd_set set; + dup2(0, 16); + FD_ZERO(&set); + FD_SET(16, &set); + close(16); + struct timeval timeout; + timeout.tv_sec = 0; + timeout.tv_usec = 5; + return select (17, &set, NULL, NULL, &timeout) != -1 || errno != EBADF; +]])], [gl_cv_func_select_detects_ebadf=yes], + [gl_cv_func_select_detects_ebadf=no], + [ + case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_select_detects_ebadf="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_select_detects_ebadf="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_select_detects_ebadf="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_select_detects_ebadf="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case $gl_cv_func_select_detects_ebadf in + *yes) ;; + *) REPLACE_SELECT=1 ;; + esac + fi + + dnl Determine the needed libraries. + SELECT_LIB="$LIBSOCKET" + if test $REPLACE_SELECT = 1; then + case "$host_os" in + mingw*) + dnl On the MSVC platform, the function MsgWaitForMultipleObjects + dnl (used in lib/select.c) requires linking with -luser32. On mingw, + dnl it is implicit. + AC_LINK_IFELSE( + [AC_LANG_SOURCE([[ +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +int +main () +{ + MsgWaitForMultipleObjects (0, NULL, 0, 0, 0); + return 0; +}]])], + [], + [SELECT_LIB="$SELECT_LIB -luser32"]) + ;; + esac + fi + AC_SUBST([SELECT_LIB]) + dnl For backward compatibility. + LIB_SELECT="$LIB_SELECT" + AC_SUBST([LIB_SELECT]) +]) diff --git a/gl/m4/setenv.m4 b/gl/m4/setenv.m4 new file mode 100644 index 0000000..a30523d --- /dev/null +++ b/gl/m4/setenv.m4 @@ -0,0 +1,165 @@ +# setenv.m4 serial 33 +dnl Copyright (C) 2001-2004, 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SETENV], +[ + AC_REQUIRE([gl_FUNC_SETENV_SEPARATE]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + if test $ac_cv_func_setenv = no; then + HAVE_SETENV=0 + else + AC_CACHE_CHECK([whether setenv validates arguments], + [gl_cv_func_setenv_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ + #include <stdlib.h> + #include <errno.h> + #include <string.h> + ]], [[ + int result = 0; + { + if (setenv ("", "", 0) != -1) + result |= 1; + else if (errno != EINVAL) + result |= 2; + } + { + if (setenv ("a", "=", 1) != 0) + result |= 4; + else if (strcmp (getenv ("a"), "=") != 0) + result |= 8; + } + return result; + ]])], + [gl_cv_func_setenv_works=yes], [gl_cv_func_setenv_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_setenv_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_setenv_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_setenv_works="$gl_cross_guess_normal" ;; + esac + ])]) + case "$gl_cv_func_setenv_works" in + *yes) ;; + *) + REPLACE_SETENV=1 + ;; + esac + fi +]) + +# Like gl_FUNC_SETENV, except prepare for separate compilation +# (no REPLACE_SETENV, no AC_LIBOBJ). +AC_DEFUN([gl_FUNC_SETENV_SEPARATE], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([setenv]) + if test $ac_cv_have_decl_setenv = no; then + HAVE_DECL_SETENV=0 + fi + AC_CHECK_FUNCS_ONCE([setenv]) + gl_PREREQ_SETENV +]) + +AC_DEFUN([gl_FUNC_UNSETENV], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_DECLS_ONCE([unsetenv]) + if test $ac_cv_have_decl_unsetenv = no; then + HAVE_DECL_UNSETENV=0 + fi + AC_CHECK_FUNCS([unsetenv]) + if test $ac_cv_func_unsetenv = no; then + HAVE_UNSETENV=0 + else + HAVE_UNSETENV=1 + dnl Some BSDs return void, failing to do error checking. + AC_CACHE_CHECK([for unsetenv() return type], [gt_cv_func_unsetenv_ret], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ +#undef _BSD +#define _BSD 1 /* unhide unsetenv declaration in OSF/1 5.1 <stdlib.h> */ +#include <stdlib.h> +extern +#ifdef __cplusplus +"C" +#endif +int unsetenv (const char *name); + ]], + [[]])], + [gt_cv_func_unsetenv_ret='int'], + [gt_cv_func_unsetenv_ret='void'])]) + if test $gt_cv_func_unsetenv_ret = 'void'; then + AC_DEFINE([VOID_UNSETENV], [1], [Define to 1 if unsetenv returns void + instead of int.]) + REPLACE_UNSETENV=1 + fi + + dnl Solaris 10 unsetenv does not remove all copies of a name. + dnl Haiku alpha 2 unsetenv gets confused by assignment to environ. + dnl OpenBSD 4.7 unsetenv("") does not fail. + AC_CACHE_CHECK([whether unsetenv obeys POSIX], + [gl_cv_func_unsetenv_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ + #include <stdlib.h> + #include <errno.h> + extern char **environ; + ]GL_MDA_DEFINES], + [[ + char entry1[] = "a=1"; + char entry2[] = "b=2"; + char *env[] = { entry1, entry2, NULL }; + if (putenv ((char *) "a=1")) return 1; + if (putenv (entry2)) return 2; + entry2[0] = 'a'; + unsetenv ("a"); + if (getenv ("a")) return 3; + if (!unsetenv ("") || errno != EINVAL) return 4; + entry2[0] = 'b'; + environ = env; + if (!getenv ("a")) return 5; + entry2[0] = 'a'; + unsetenv ("a"); + if (getenv ("a")) return 6; + ]])], + [gl_cv_func_unsetenv_works=yes], + [gl_cv_func_unsetenv_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_unsetenv_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_unsetenv_works" in + *yes) ;; + *) + REPLACE_UNSETENV=1 + ;; + esac + fi +]) + +# Prerequisites of lib/setenv.c. +AC_DEFUN([gl_PREREQ_SETENV], +[ + AC_REQUIRE([gl_ENVIRON]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CHECK_HEADERS([search.h]) + gl_CHECK_FUNCS_ANDROID([tsearch], [[#include <search.h>]]) +]) + +# Prerequisites of lib/unsetenv.c. +AC_DEFUN([gl_PREREQ_UNSETENV], +[ + AC_REQUIRE([gl_ENVIRON]) + AC_CHECK_HEADERS_ONCE([unistd.h]) +]) diff --git a/gl/m4/setlocale_null.m4 b/gl/m4/setlocale_null.m4 new file mode 100644 index 0000000..1105d69 --- /dev/null +++ b/gl/m4/setlocale_null.m4 @@ -0,0 +1,115 @@ +# setlocale_null.m4 serial 8 +dnl Copyright (C) 2019-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SETLOCALE_NULL], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_PTHREADLIB]) + AC_CHECK_HEADERS_ONCE([threads.h]) + + AC_CACHE_CHECK([whether setlocale (LC_ALL, NULL) is multithread-safe], + [gl_cv_func_setlocale_null_all_mtsafe], + [case "$host_os" in + # Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku. + *-musl* | midipix* | darwin* | freebsd* | midnightbsd* | netbsd* | openbsd* | aix* | haiku*) + gl_cv_func_setlocale_null_all_mtsafe=no ;; + # Guess no on Cygwin < 3.4.6. + cygwin*) + AC_EGREP_CPP([Lucky user], + [ +#if defined __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED >= CYGWIN_VERSION_DLL_MAKE_COMBINED (3004, 6) + Lucky user + #endif +#endif + ], + [gl_cv_func_setlocale_null_all_mtsafe=yes], + [gl_cv_func_setlocale_null_all_mtsafe=no]) + ;; + # Guess yes on glibc, HP-UX, IRIX, Solaris, native Windows. + *-gnu* | gnu* | hpux* | irix* | solaris* | mingw*) + gl_cv_func_setlocale_null_all_mtsafe=yes ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_setlocale_null_all_mtsafe="$gl_cross_guess_normal" ;; + esac + ]) + dnl On platforms without multithreading, there is no issue. + case "$host_os" in + mingw*) ;; + *) + if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then + gl_cv_func_setlocale_null_all_mtsafe="trivially yes" + fi + ;; + esac + case "$gl_cv_func_setlocale_null_all_mtsafe" in + *yes) SETLOCALE_NULL_ALL_MTSAFE=1 ;; + *) SETLOCALE_NULL_ALL_MTSAFE=0 ;; + esac + AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ALL_MTSAFE], [$SETLOCALE_NULL_ALL_MTSAFE], + [Define to 1 if setlocale (LC_ALL, NULL) is multithread-safe.]) + + dnl This is about a single category (not LC_ALL). + AC_CACHE_CHECK([whether setlocale (category, NULL) is multithread-safe], + [gl_cv_func_setlocale_null_one_mtsafe], + [case "$host_os" in + # Guess no on OpenBSD, AIX. + openbsd* | aix*) + gl_cv_func_setlocale_null_one_mtsafe=no ;; + # Guess yes on glibc, musl libc, macOS, FreeBSD, NetBSD, HP-UX, IRIX, Solaris, Haiku, Cygwin, native Windows. + *-gnu* | gnu* | *-musl* | midipix* | darwin* | freebsd* | midnightbsd* | netbsd* | hpux* | irix* | solaris* | haiku* | cygwin* | mingw*) + gl_cv_func_setlocale_null_one_mtsafe=yes ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_setlocale_null_one_mtsafe="$gl_cross_guess_normal" ;; + esac + ]) + dnl On platforms without multithreading, there is no issue. + case "$host_os" in + mingw*) ;; + *) + if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then + gl_cv_func_setlocale_null_one_mtsafe="trivially yes" + fi + ;; + esac + case "$gl_cv_func_setlocale_null_one_mtsafe" in + *yes) SETLOCALE_NULL_ONE_MTSAFE=1 ;; + *) SETLOCALE_NULL_ONE_MTSAFE=0 ;; + esac + AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ONE_MTSAFE], [$SETLOCALE_NULL_ONE_MTSAFE], + [Define to 1 if setlocale (category, NULL) is multithread-safe.]) + + dnl Determine link dependencies of lib/setlocale_null.c and lib/setlocale-lock.c. + if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then + case "$host_os" in + mingw*) SETLOCALE_NULL_LIB= ;; + *) + gl_WEAK_SYMBOLS + case "$gl_cv_have_weak" in + *yes) SETLOCALE_NULL_LIB= ;; + *) SETLOCALE_NULL_LIB="$LIBPTHREAD" ;; + esac + ;; + esac + else + SETLOCALE_NULL_LIB= + fi + dnl SETLOCALE_NULL_LIB is expected to be '-pthread' or '-lpthread' on AIX + dnl with gcc or xlc, and empty otherwise. + AC_SUBST([SETLOCALE_NULL_LIB]) + dnl For backward compatibility. + LIB_SETLOCALE_NULL="$SETLOCALE_NULL_LIB" + AC_SUBST([LIB_SETLOCALE_NULL]) +]) + +# Prerequisites of lib/setlocale-lock.c. +AC_DEFUN([gl_PREREQ_SETLOCALE_LOCK], +[ + gl_VISIBILITY +]) diff --git a/gl/m4/sigaction.m4 b/gl/m4/sigaction.m4 new file mode 100644 index 0000000..e981a74 --- /dev/null +++ b/gl/m4/sigaction.m4 @@ -0,0 +1,40 @@ +# sigaction.m4 serial 7 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Determine if sigaction interface is present. +AC_DEFUN([gl_SIGACTION], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([sigaction]) + if test $ac_cv_func_sigaction = yes; then + AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , , + [[#include <signal.h>]]) + if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then + HAVE_STRUCT_SIGACTION_SA_SIGACTION=0 + fi + else + HAVE_SIGACTION=0 + fi +]) + +# Prerequisites of the part of lib/signal.in.h and of lib/sigaction.c. +AC_DEFUN([gl_PREREQ_SIGACTION], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_TYPE_UID_T]) + AC_REQUIRE([gl_PREREQ_SIG_HANDLER_H]) + AC_CHECK_FUNCS_ONCE([sigaltstack siginterrupt]) + AC_CHECK_TYPES([siginfo_t], [], [], [[ +#include <signal.h> + ]]) + if test $ac_cv_type_siginfo_t = no; then + HAVE_SIGINFO_T=0 + fi +]) + +# Prerequisites of lib/sig-handler.h. +AC_DEFUN([gl_PREREQ_SIG_HANDLER_H], [:]) diff --git a/gl/m4/signal_h.m4 b/gl/m4/signal_h.m4 new file mode 100644 index 0000000..cdd6812 --- /dev/null +++ b/gl/m4/signal_h.m4 @@ -0,0 +1,100 @@ +# signal_h.m4 serial 22 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_SIGNAL_H], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) + gl_NEXT_HEADERS([signal.h]) + +# AIX declares sig_atomic_t to already include volatile, and C89 compilers +# then choke on 'volatile sig_atomic_t'. C99 requires that it compile. + AC_CHECK_TYPE([volatile sig_atomic_t], [], + [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ +#include <signal.h> + ]]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + AC_REQUIRE([AC_TYPE_UID_T]) + + dnl Persuade glibc <signal.h> to define sighandler_t. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ +#include <signal.h> + ]]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <signal.h> + ]], [pthread_sigmask sigaction + sigaddset sigdelset sigemptyset sigfillset sigismember + sigpending sigprocmask]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +AC_DEFUN([gl_CHECK_TYPE_SIGSET_T], +[ + AC_CHECK_TYPES([sigset_t], + [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no], + [[ + #include <signal.h> + /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ + #include <sys/types.h> + ]]) + if test $gl_cv_type_sigset_t != yes; then + HAVE_SIGSET_T=0 + fi +]) + +# gl_SIGNAL_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SIGNAL_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SIGNAL_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SIGNAL_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_SIGMASK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RAISE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGNAL_H_SIGPIPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGPROCMASK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGACTION]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SIGNAL_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SIGNAL_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) + HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) + HAVE_RAISE=1; AC_SUBST([HAVE_RAISE]) + HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) + HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) + HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) + HAVE_STRUCT_SIGACTION_SA_SIGACTION=1; + AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) + HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; + AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) + HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) + REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) + REPLACE_RAISE=0; AC_SUBST([REPLACE_RAISE]) +]) diff --git a/gl/m4/signalblocking.m4 b/gl/m4/signalblocking.m4 new file mode 100644 index 0000000..81cc91a --- /dev/null +++ b/gl/m4/signalblocking.m4 @@ -0,0 +1,23 @@ +# signalblocking.m4 serial 17 +dnl Copyright (C) 2001-2002, 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Determine available signal blocking primitives. Three different APIs exist: +# 1) POSIX: sigemptyset, sigaddset, sigprocmask +# 2) SYSV: sighold, sigrelse +# 3) BSD: sigblock, sigsetmask +# For simplicity, here we check only for the POSIX signal blocking. +AC_DEFUN([gl_SIGNALBLOCKING], +[ + AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) + HAVE_POSIX_SIGNALBLOCKING=0 + if test "$gl_cv_type_sigset_t" = yes; then + AC_CHECK_FUNC([sigprocmask], [HAVE_POSIX_SIGNALBLOCKING=1]) + fi +]) + +# Prerequisites of lib/sigprocmask.c. +AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:]) diff --git a/gl/m4/sigpipe.m4 b/gl/m4/sigpipe.m4 new file mode 100644 index 0000000..1b6ec42 --- /dev/null +++ b/gl/m4/sigpipe.m4 @@ -0,0 +1,29 @@ +# sigpipe.m4 serial 3 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Tests whether SIGPIPE is provided by <signal.h>. +dnl Sets gl_cv_header_signal_h_SIGPIPE. +AC_DEFUN([gl_SIGNAL_SIGPIPE], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_SIGNAL_SIGPIPE_BODY]) +]) + +AC_DEFUN([gl_SIGNAL_SIGPIPE_BODY], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for SIGPIPE], [gl_cv_header_signal_h_SIGPIPE], [ + AC_EGREP_CPP([booboo],[ +#include <signal.h> +#if !defined SIGPIPE +booboo +#endif + ], + [gl_cv_header_signal_h_SIGPIPE=no], + [gl_cv_header_signal_h_SIGPIPE=yes]) + ]) +]) diff --git a/gl/m4/size_max.m4 b/gl/m4/size_max.m4 new file mode 100644 index 0000000..0763366 --- /dev/null +++ b/gl/m4/size_max.m4 @@ -0,0 +1,75 @@ +# size_max.m4 serial 12 +dnl Copyright (C) 2003, 2005-2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_PREREQ([2.61]) + +AC_DEFUN([gl_SIZE_MAX], +[ + AC_CHECK_HEADERS([stdint.h]) + dnl First test whether the system already has SIZE_MAX. + AC_CACHE_CHECK([for SIZE_MAX], [gl_cv_size_max], [ + gl_cv_size_max=no + AC_EGREP_CPP([Found it], [ +#include <limits.h> +#if HAVE_STDINT_H +#include <stdint.h> +#endif +#ifdef SIZE_MAX +Found it +#endif +], [gl_cv_size_max=yes]) + if test $gl_cv_size_max != yes; then + dnl Define it ourselves. Here we assume that the type 'size_t' is not wider + dnl than the type 'unsigned long'. Try hard to find a definition that can + dnl be used in a preprocessor #if, i.e. doesn't contain a cast. + AC_COMPUTE_INT([size_t_bits_minus_1], [sizeof (size_t) * CHAR_BIT - 1], + [#include <stddef.h> +#include <limits.h>], [size_t_bits_minus_1=]) + AC_COMPUTE_INT([fits_in_uint], [sizeof (size_t) <= sizeof (unsigned int)], + [#include <stddef.h>], [fits_in_uint=]) + if test -n "$size_t_bits_minus_1" && test -n "$fits_in_uint"; then + if test $fits_in_uint = 1; then + dnl Even though SIZE_MAX fits in an unsigned int, it must be of type + dnl 'unsigned long' if the type 'size_t' is the same as 'unsigned long'. + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + extern size_t foo; + extern unsigned long foo; + ]], + [[]])], + [fits_in_uint=0]) + fi + dnl We cannot use 'expr' to simplify this expression, because 'expr' + dnl works only with 'long' integers in the host environment, while we + dnl might be cross-compiling from a 32-bit platform to a 64-bit platform. + if test $fits_in_uint = 1; then + gl_cv_size_max="(((1U << $size_t_bits_minus_1) - 1) * 2 + 1)" + else + gl_cv_size_max="(((1UL << $size_t_bits_minus_1) - 1) * 2 + 1)" + fi + else + dnl Shouldn't happen, but who knows... + gl_cv_size_max='((size_t)~(size_t)0)' + fi + fi + ]) + if test "$gl_cv_size_max" != yes; then + AC_DEFINE_UNQUOTED([SIZE_MAX], [$gl_cv_size_max], + [Define as the maximum value of type 'size_t', if the system doesn't define it.]) + fi + dnl Don't redefine SIZE_MAX in config.h if config.h is re-included after + dnl <stdint.h>. Remember that the #undef in AH_VERBATIM gets replaced with + dnl #define by AC_DEFINE_UNQUOTED. + AH_VERBATIM([SIZE_MAX], +[/* Define as the maximum value of type 'size_t', if the system doesn't define + it. */ +#ifndef SIZE_MAX +# undef SIZE_MAX +#endif]) +]) diff --git a/gl/m4/sleep.m4 b/gl/m4/sleep.m4 new file mode 100644 index 0000000..269b73b --- /dev/null +++ b/gl/m4/sleep.m4 @@ -0,0 +1,68 @@ +# sleep.m4 serial 12 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SLEEP], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl We expect to see the declaration of sleep() in a header file. + dnl Older versions of mingw have a sleep() function that is an alias to + dnl _sleep() in MSVCRT. It has a different signature than POSIX sleep(): + dnl it takes the number of milliseconds as argument and returns void. + dnl mingw does not declare this function. + AC_CHECK_DECLS([sleep], , , [[#include <unistd.h>]]) + AC_CHECK_FUNCS_ONCE([sleep]) + if test $ac_cv_have_decl_sleep != yes; then + HAVE_SLEEP=0 + else + dnl Cygwin 1.5.x has a bug where sleep can't exceed 49.7 days. + AC_CACHE_CHECK([for working sleep], [gl_cv_func_sleep_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <errno.h> +#include <unistd.h> +#include <signal.h> +static void +handle_alarm (int sig) +{ + if (sig != SIGALRM) + _exit (2); +} +]], [[ + /* Failure to compile this test due to missing alarm is okay, + since all such platforms (mingw) also lack sleep. */ + unsigned int pentecost = 50 * 24 * 60 * 60; /* 50 days. */ + unsigned int remaining; + signal (SIGALRM, handle_alarm); + alarm (1); + remaining = sleep (pentecost); + if (remaining > pentecost) + return 3; + if (remaining <= pentecost - 10) + return 4; + return 0; + ]])], + [gl_cv_func_sleep_works=yes], [gl_cv_func_sleep_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_sleep_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_sleep_works="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_sleep_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_sleep_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_sleep_works="$gl_cross_guess_normal" ;; + esac + ])]) + case "$gl_cv_func_sleep_works" in + *yes) ;; + *) + REPLACE_SLEEP=1 + ;; + esac + fi +]) diff --git a/gl/m4/socketlib.m4 b/gl/m4/socketlib.m4 new file mode 100644 index 0000000..a556af1 --- /dev/null +++ b/gl/m4/socketlib.m4 @@ -0,0 +1,96 @@ +# socketlib.m4 serial 3 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl gl_SOCKETLIB +dnl Determines the library to use for socket functions. +dnl Sets and AC_SUBSTs LIBSOCKET. + +AC_DEFUN([gl_SOCKETLIB], +[ + gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H + LIBSOCKET= + if test $HAVE_WINSOCK2_H = 1; then + dnl Native Windows API (not Cygwin). + dnl If the function WSAStartup exists (declared in <winsock2.h> and + dnl defined through -lws2_32), we need to call it. + AC_CACHE_CHECK([for WSAStartup], + [gl_cv_func_wsastartup], [ + gl_save_LIBS="$LIBS" + LIBS="$LIBS -lws2_32" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +#ifdef HAVE_WINSOCK2_H +# include <winsock2.h> +#endif]], [[ + WORD wVersionRequested = MAKEWORD(1, 1); + WSADATA wsaData; + int err = WSAStartup(wVersionRequested, &wsaData); + WSACleanup (); + ]]) + ], + [gl_cv_func_wsastartup=yes], + [gl_cv_func_wsastartup=no]) + LIBS="$gl_save_LIBS" + ]) + if test "$gl_cv_func_wsastartup" = "yes"; then + AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.]) + LIBSOCKET='-lws2_32' + fi + else + dnl Unix API. + dnl Solaris has most socket functions in libsocket. + dnl Haiku has most socket functions in libnetwork. + dnl BeOS has most socket functions in libnet. + dnl On HP-UX, do NOT link with libxnet, because in 64-bit mode this would + dnl break code (e.g. in libraries) that invokes accept(), getpeername(), + dnl getsockname(), getsockopt(), or recvfrom() with a 32-bit addrlen. See + dnl "man xopen_networking" for details. + AC_CACHE_CHECK([for library containing setsockopt], [gl_cv_lib_socket], [ + gl_cv_lib_socket= + AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern +#ifdef __cplusplus +"C" +#endif +char setsockopt();]], [[setsockopt();]])], + [], + [gl_save_LIBS="$LIBS" + LIBS="$gl_save_LIBS -lsocket" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern +#ifdef __cplusplus +"C" +#endif +char setsockopt();]], [[setsockopt();]])], + [gl_cv_lib_socket="-lsocket"]) + if test -z "$gl_cv_lib_socket"; then + LIBS="$gl_save_LIBS -lnetwork" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern +#ifdef __cplusplus +"C" +#endif +char setsockopt();]], [[setsockopt();]])], + [gl_cv_lib_socket="-lnetwork"]) + if test -z "$gl_cv_lib_socket"; then + LIBS="$gl_save_LIBS -lnet" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern +#ifdef __cplusplus +"C" +#endif +char setsockopt();]], [[setsockopt();]])], + [gl_cv_lib_socket="-lnet"]) + fi + fi + LIBS="$gl_save_LIBS" + ]) + if test -z "$gl_cv_lib_socket"; then + gl_cv_lib_socket="none needed" + fi + ]) + if test "$gl_cv_lib_socket" != "none needed"; then + LIBSOCKET="$gl_cv_lib_socket" + fi + fi + AC_SUBST([LIBSOCKET]) +]) diff --git a/gl/m4/sockets.m4 b/gl/m4/sockets.m4 new file mode 100644 index 0000000..ed9cb87 --- /dev/null +++ b/gl/m4/sockets.m4 @@ -0,0 +1,17 @@ +# sockets.m4 serial 7 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_SOCKETS], +[ + AC_REQUIRE([AC_C_INLINE]) + AC_REQUIRE([gl_SOCKETLIB]) + gl_PREREQ_SOCKETS +]) + +# Prerequisites of lib/sockets.c. +AC_DEFUN([gl_PREREQ_SOCKETS], [ + : +]) diff --git a/gl/m4/socklen.m4 b/gl/m4/socklen.m4 new file mode 100644 index 0000000..1c63a85 --- /dev/null +++ b/gl/m4/socklen.m4 @@ -0,0 +1,76 @@ +# socklen.m4 serial 11 +dnl Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Albert Chin, Windows fixes from Simon Josefsson. + +dnl Check for socklen_t: historically on BSD it is an int, and in +dnl POSIX 1g it is a type of its own, but some platforms use different +dnl types for the argument to getsockopt, getpeername, etc.: +dnl HP-UX 10.20, IRIX 6.5, OSF/1 4.0, Interix 3.5, BeOS. +dnl So we have to test to find something that will work. + +AC_DEFUN([gl_TYPE_SOCKLEN_T], + [AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])dnl + AC_CHECK_TYPE([socklen_t], , + [AC_CACHE_CHECK([for socklen_t equivalent], + [gl_cv_socklen_t_equiv], + [# Systems have either "struct sockaddr *" or + # "void *" as the second argument to getpeername + gl_cv_socklen_t_equiv= + for arg2 in "struct sockaddr" void; do + for t in int size_t "unsigned int" "long int" "unsigned long int"; do + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[#include <sys/types.h> + #include <sys/socket.h> + + int getpeername (int, $arg2 *, $t *);]], + [[$t len; + getpeername (0, 0, &len);]])], + [gl_cv_socklen_t_equiv="$t"]) + test "$gl_cv_socklen_t_equiv" != "" && break + done + test "$gl_cv_socklen_t_equiv" != "" && break + done + if test "$gl_cv_socklen_t_equiv" = ""; then + AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) + fi + ]) + AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv], + [type to use in place of socklen_t if not defined])], + [gl_SOCKET_HEADERS])]) + +dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find +dnl it there too. But on Cygwin, wc2tcpip.h must not be included. Users +dnl of this module should use the same include pattern as gl_SOCKET_HEADERS. +dnl When you change this macro, keep also in sync: +dnl - gl_CHECK_SOCKET_HEADERS, +dnl - the Include section of modules/socklen. +AC_DEFUN([gl_SOCKET_HEADERS], +[ +/* <sys/types.h> is not needed according to POSIX, but the + <sys/socket.h> in i386-unknown-freebsd4.10 and + powerpc-apple-darwin5.5 required it. */ +#include <sys/types.h> +#if HAVE_SYS_SOCKET_H +# include <sys/socket.h> +#elif HAVE_WS2TCPIP_H +# include <ws2tcpip.h> +#endif +]) + +dnl Tests for the existence of the header for socket facilities. +dnl Defines the C macros HAVE_SYS_SOCKET_H, HAVE_WS2TCPIP_H. +dnl This macro must match gl_SOCKET_HEADERS. +AC_DEFUN([gl_CHECK_SOCKET_HEADERS], + [AC_CHECK_HEADERS_ONCE([sys/socket.h]) + if test $ac_cv_header_sys_socket_h = no; then + dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make + dnl the check for those headers unconditional; yet cygwin reports + dnl that the headers are present but cannot be compiled (since on + dnl cygwin, all socket information should come from sys/socket.h). + AC_CHECK_HEADERS([ws2tcpip.h]) + fi + ]) diff --git a/gl/m4/sockpfaf.m4 b/gl/m4/sockpfaf.m4 new file mode 100644 index 0000000..6c6dc2f --- /dev/null +++ b/gl/m4/sockpfaf.m4 @@ -0,0 +1,84 @@ +# sockpfaf.m4 serial 10 +dnl Copyright (C) 2004, 2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) +dnl and some common address families (AF_INET, AF_INET6, ...). +dnl This test assumes that a system supports an address family if and only if +dnl it supports the corresponding protocol family. + +dnl From Bruno Haible. + +AC_DEFUN([gl_SOCKET_FAMILIES], +[ + AC_REQUIRE([gl_SYS_SOCKET_H]) + AC_CHECK_HEADERS_ONCE([netinet/in.h]) + + AC_CACHE_CHECK([for IPv4 sockets], + [gl_cv_socket_ipv4], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif]], +[[int x = AF_INET; struct in_addr y; struct sockaddr_in z; + if (&x && &y && &z) return 0;]])], + gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) + if test $gl_cv_socket_ipv4 = yes; then + AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.]) + fi + + AC_CACHE_CHECK([for IPv6 sockets], + [gl_cv_socket_ipv6], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif +#ifdef HAVE_WS2TCPIP_H +#include <ws2tcpip.h> +#endif]], +[[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; + if (&x && &y && &z) return 0;]])], + gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) + if test $gl_cv_socket_ipv6 = yes; then + AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.]) + fi +]) + +AC_DEFUN([gl_SOCKET_FAMILY_UNIX], +[ + AC_REQUIRE([gl_SYS_SOCKET_H]) + AC_CHECK_HEADERS_ONCE([sys/un.h]) + + AC_CACHE_CHECK([for UNIX domain sockets], + [gl_cv_socket_unix], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#endif]], +[[int x = AF_UNIX; struct sockaddr_un y; + if (&x && &y) return 0;]])], + gl_cv_socket_unix=yes, gl_cv_socket_unix=no)]) + if test $gl_cv_socket_unix = yes; then + AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if <sys/socket.h> defines AF_UNIX.]) + fi +]) diff --git a/gl/m4/ssize_t.m4 b/gl/m4/ssize_t.m4 new file mode 100644 index 0000000..52bd77d --- /dev/null +++ b/gl/m4/ssize_t.m4 @@ -0,0 +1,37 @@ +# ssize_t.m4 serial 6 +dnl Copyright (C) 2001-2003, 2006, 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Define ssize_t if it does not already exist. + +AC_DEFUN([gt_TYPE_SSIZE_T], +[ + AC_CACHE_CHECK([for ssize_t], [gl_cv_ssize_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h>]], + [[int x = sizeof (ssize_t *) + sizeof (ssize_t); + return !x;]])], + [gl_cv_ssize_t=yes], [gl_cv_ssize_t=no])]) + if test $gl_cv_ssize_t = no; then + dnl On 64-bit native Windows, ssize_t needs to be defined as 'long long', + dnl for consistency with the 64-bit size_t. + AC_CACHE_CHECK([whether size_t is wider than 'long'], [gl_cv_size_t_large], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + typedef int array [2 * (sizeof (size_t) > sizeof (long)) - 1]; + ]])], + [gl_cv_size_t_large=yes], [gl_cv_size_t_large=no])]) + if test $gl_cv_size_t_large = yes; then + gl_def_ssize_t='long long' + else + gl_def_ssize_t='long' + fi + AC_DEFINE_UNQUOTED([ssize_t], [$gl_def_ssize_t], + [Define as a signed type of the same size as size_t.]) + fi +]) diff --git a/gl/m4/stat-time.m4 b/gl/m4/stat-time.m4 new file mode 100644 index 0000000..40993d5 --- /dev/null +++ b/gl/m4/stat-time.m4 @@ -0,0 +1,83 @@ +# Checks for stat-related time functions. + +# Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2023 Free Software +# Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# st_atim.tv_nsec - Linux, Solaris, Cygwin +# st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE +# st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE +# st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1) + +# st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) +# st_birthtim - Cygwin 1.7.0+ + +AC_DEFUN([gl_STAT_TIME], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS_ONCE([sys/time.h]) + + AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec], + [AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <sys/stat.h> + #if HAVE_SYS_TIME_H + # include <sys/time.h> + #endif + #include <time.h> + struct timespec ts; + struct stat st; + ]], + [[ + st.st_atim = ts; + ]])], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])]) + if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then + AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], [1], + [Define to 1 if the type of the st_atim member of a struct stat is + struct timespec.]) + fi], + [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], + [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], + [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>]) +]) + +# Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.) +# and NTFS (Cygwin). +# There was a time when this field was named st_createtime (21 June +# 2002 to 16 July 2002) But that window is very small and applied only +# to development code, so systems still using that configuration are +# not supported. See revisions 1.10 and 1.11 of FreeBSD's +# src/sys/ufs/ufs/dinode.h. +# +AC_DEFUN([gl_STAT_BIRTHTIME], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS_ONCE([sys/time.h]) + AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], + [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], + [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>]) +]) diff --git a/gl/m4/stat.m4 b/gl/m4/stat.m4 new file mode 100644 index 0000000..6d1628c --- /dev/null +++ b/gl/m4/stat.m4 @@ -0,0 +1,87 @@ +# serial 19 + +# Copyright (C) 2009-2023 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STAT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([lstat]) + case "$host_os" in + mingw*) + dnl On this platform, the original stat() returns st_atime, st_mtime, + dnl st_ctime values that are affected by the time zone. + REPLACE_STAT=1 + ;; + *) + dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). + dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) + dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). + AC_CACHE_CHECK([whether stat handles trailing slashes on files], + [gl_cv_func_stat_file_slash], + [touch conftest.tmp + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.tmp conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/stat.h> +]], [[int result = 0; + struct stat st; + if (!stat ("conftest.tmp/", &st)) + result |= 1; +#if HAVE_LSTAT + if (!stat ("conftest.lnk/", &st)) + result |= 2; +#endif + return result; + ]])], + [gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_stat_file_slash="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_stat_file_slash="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_stat_file_slash="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.tmp conftest.lnk]) + case $gl_cv_func_stat_file_slash in + *no) + REPLACE_STAT=1 + AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs + help when passed a file name with a trailing slash]);; + esac + case $host_os in + dnl Solaris stat can return a negative tv_nsec. + solaris*) + REPLACE_FSTAT=1 ;; + esac + ;; + esac +]) + +# Prerequisites of lib/stat.c and lib/stat-w32.c. +AC_DEFUN([gl_PREREQ_STAT], [ + AC_REQUIRE([gl_SYS_STAT_H]) + AC_REQUIRE([gl_PREREQ_STAT_W32]) + : +]) + +# Prerequisites of lib/stat-w32.c. +AC_DEFUN([gl_PREREQ_STAT_W32], [ + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + AC_CHECK_HEADERS([sdkddkver.h]) + ;; + esac +]) diff --git a/gl/m4/stdalign.m4 b/gl/m4/stdalign.m4 new file mode 100644 index 0000000..1a236d6 --- /dev/null +++ b/gl/m4/stdalign.m4 @@ -0,0 +1,200 @@ +# Check for alignas and alignof that conform to C23. + +dnl Copyright 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert and Bruno Haible. + +# Prepare for substituting <stdalign.h> if it is not supported. + +AC_DEFUN([gl_ALIGNASOF], +[ + AC_CACHE_CHECK([for alignas and alignof], + [gl_cv_header_working_stdalign_h], + [gl_save_CFLAGS=$CFLAGS + for gl_working in "yes, keywords" "yes, <stdalign.h> macros"; do + AS_CASE([$gl_working], + [*stdalign.h*], [CFLAGS="$gl_save_CFLAGS -DINCLUDE_STDALIGN_H"]) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdint.h> + #ifdef INCLUDE_STDALIGN_H + #include <stdalign.h> + #endif + #include <stddef.h> + + /* Test that alignof yields a result consistent with offsetof. + This catches GCC bug 52023 + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ + #ifdef __cplusplus + template <class t> struct alignof_helper { char a; t b; }; + # define ao(type) offsetof (alignof_helper<type>, b) + #else + # define ao(type) offsetof (struct { char a; type b; }, b) + #endif + char test_double[ao (double) % _Alignof (double) == 0 ? 1 : -1]; + char test_long[ao (long int) % _Alignof (long int) == 0 ? 1 : -1]; + char test_alignof[alignof (double) == _Alignof (double) ? 1 : -1]; + + /* Test alignas only on platforms where gnulib can help. */ + #if \ + ((defined __cplusplus && 201103 <= __cplusplus) \ + || (__TINYC__ && defined __attribute__) \ + || (defined __APPLE__ && defined __MACH__ \ + ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \ + : __GNUC__) \ + || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \ + || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__ \ + || 1300 <= _MSC_VER) + struct alignas_test { char c; char alignas (8) alignas_8; }; + char test_alignas[offsetof (struct alignas_test, alignas_8) == 8 + ? 1 : -1]; + #endif + ]])], + [gl_cv_header_working_stdalign_h=$gl_working], + [gl_cv_header_working_stdalign_h=no]) + + CFLAGS=$gl_save_CFLAGS + test "$gl_cv_header_working_stdalign_h" != no && break + done]) + + AS_CASE([$gl_cv_header_working_stdalign_h], + [yes*keyword*], + [AC_DEFINE([HAVE_C_ALIGNASOF], [1], + [Define to 1 if the alignas and alignof keywords work.])]) + + dnl The "zz" puts this toward config.h's end, to avoid potential + dnl collisions with other definitions. + AH_VERBATIM([zzalignas], +[#if !defined HAVE_C_ALIGNASOF && __cplusplus < 201103 && !defined alignof +# if HAVE_STDALIGN_H +# include <stdalign.h> +# endif + +/* ISO C23 alignas and alignof for platforms that lack it. + + References: + ISO C23 (latest free draft + <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n3047.pdf>) + sections 6.5.3.4, 6.7.5, 7.15. + C++11 (latest free draft + <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf>) + section 18.10. */ + +/* alignof (TYPE), also known as _Alignof (TYPE), yields the alignment + requirement of a structure member (i.e., slot or field) that is of + type TYPE, as an integer constant expression. + + This differs from GCC's and clang's __alignof__ operator, which can + yield a better-performing alignment for an object of that type. For + example, on x86 with GCC and on Linux/x86 with clang, + __alignof__ (double) and __alignof__ (long long) are 8, whereas + alignof (double) and alignof (long long) are 4 unless the option + '-malign-double' is used. + + The result cannot be used as a value for an 'enum' constant, if you + want to be portable to HP-UX 10.20 cc and AIX 3.2.5 xlc. */ + +/* GCC releases before GCC 4.9 had a bug in _Alignof. See GCC bug 52023 + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. + clang versions < 8.0.0 have the same bug. */ +# if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \ + || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9) \ + && !defined __clang__) \ + || (defined __clang__ && __clang_major__ < 8)) +# undef/**/_Alignof +# ifdef __cplusplus +# if (201103 <= __cplusplus || defined _MSC_VER) +# define _Alignof(type) alignof (type) +# else + template <class __t> struct __alignof_helper { char __a; __t __b; }; +# define _Alignof(type) offsetof (__alignof_helper<type>, __b) +# define _GL_STDALIGN_NEEDS_STDDEF 1 +# endif +# else +# if (defined __GNUC__ && 4 <= __GNUC__) || defined __clang__ +# define _Alignof(type) __builtin_offsetof (struct { char __a; type __b; }, __b) +# else +# define _Alignof(type) offsetof (struct { char __a; type __b; }, __b) +# define _GL_STDALIGN_NEEDS_STDDEF 1 +# endif +# endif +# endif +# if ! (defined __cplusplus && (201103 <= __cplusplus || defined _MSC_VER)) +# undef/**/alignof +# define alignof _Alignof +# endif + +/* alignas (A), also known as _Alignas (A), aligns a variable or type + to the alignment A, where A is an integer constant expression. For + example: + + int alignas (8) foo; + struct s { int a; int alignas (8) bar; }; + + aligns the address of FOO and the offset of BAR to be multiples of 8. + + A should be a power of two that is at least the type's alignment + and at most the implementation's alignment limit. This limit is + 2**28 on typical GNUish hosts, and 2**13 on MSVC. To be portable + to MSVC through at least version 10.0, A should be an integer + constant, as MSVC does not support expressions such as 1 << 3. + To be portable to Sun C 5.11, do not align auto variables to + anything stricter than their default alignment. + + The following C23 requirements are not supported here: + + - If A is zero, alignas has no effect. + - alignas can be used multiple times; the strictest one wins. + - alignas (TYPE) is equivalent to alignas (alignof (TYPE)). + + */ +# if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 +# if defined __cplusplus && (201103 <= __cplusplus || defined _MSC_VER) +# define _Alignas(a) alignas (a) +# elif (!defined __attribute__ \ + && ((defined __APPLE__ && defined __MACH__ \ + ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \ + : __GNUC__ && !defined __ibmxl__) \ + || (4 <= __clang_major__) \ + || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \ + || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__)) +# define _Alignas(a) __attribute__ ((__aligned__ (a))) +# elif 1300 <= _MSC_VER +# define _Alignas(a) __declspec (align (a)) +# endif +# endif +# if !HAVE_STDALIGN_H +# if ((defined _Alignas \ + && !(defined __cplusplus \ + && (201103 <= __cplusplus || defined _MSC_VER))) \ + || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__)) +# define alignas _Alignas +# endif +# endif + +# if _GL_STDALIGN_NEEDS_STDDEF +# include <stddef.h> +# endif +#endif]) +]) + +AC_DEFUN([gl_STDALIGN_H], +[ + AC_REQUIRE([gl_ALIGNASOF]) + if test "$gl_cv_header_working_stdalign_h" = no; then + GL_GENERATE_STDALIGN_H=true + else + GL_GENERATE_STDALIGN_H=false + fi + + gl_CHECK_NEXT_HEADERS([stdalign.h]) + if test $ac_cv_header_stdalign_h = yes; then + HAVE_STDALIGN_H=1 + else + HAVE_STDALIGN_H=0 + fi + AC_SUBST([HAVE_STDALIGN_H]) +]) diff --git a/gl/m4/stdarg.m4 b/gl/m4/stdarg.m4 new file mode 100644 index 0000000..94787cc --- /dev/null +++ b/gl/m4/stdarg.m4 @@ -0,0 +1,76 @@ +# stdarg.m4 serial 8 +dnl Copyright (C) 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Provide a working va_copy in combination with <stdarg.h>. + +AC_DEFUN([gl_STDARG_H], +[ + GL_GENERATE_STDARG_H=false + NEXT_STDARG_H='<stdarg.h>' + AC_CACHE_CHECK([for va_copy], + [gl_cv_func_va_copy], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdarg.h>]], + [[ +#ifndef va_copy +void (*func) (va_list, va_list) = va_copy; +#endif + ]])], + [gl_cv_func_va_copy=yes], + [gl_cv_func_va_copy=no]) + ]) + if test $gl_cv_func_va_copy = no; then + dnl Provide a substitute. + dnl Usually a simple definition in <config.h> is enough. Not so on AIX 5 + dnl with some versions of the /usr/vac/bin/cc compiler. It has an <stdarg.h> + dnl which does '#undef va_copy', leading to a missing va_copy symbol. For + dnl this platform, we use an <stdarg.h> substitute. But we cannot use this + dnl approach on other platforms, because <stdarg.h> often defines only + dnl preprocessor macros and gl_ABSOLUTE_HEADER, gl_CHECK_NEXT_HEADERS do + dnl not work in this situation. + AC_EGREP_CPP([vaccine], + [#if defined _AIX && !defined __GNUC__ + AIX vaccine + #endif + ], [gl_aixcc=yes], [gl_aixcc=no]) + if test $gl_aixcc = yes; then + dnl Provide a substitute <stdarg.h> file. + GL_GENERATE_STDARG_H=true + gl_NEXT_HEADERS([stdarg.h]) + dnl Fallback for the case when <stdarg.h> contains only macro definitions. + if test "$gl_cv_next_stdarg_h" = '""'; then + gl_cv_next_stdarg_h='"///usr/include/stdarg.h"' + NEXT_STDARG_H="$gl_cv_next_stdarg_h" + fi + else + dnl Provide a substitute in <config.h>, either __va_copy or as a simple + dnl assignment. + gl_CACHE_VAL_SILENT([gl_cv_func___va_copy], [ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdarg.h>]], + [[ +#ifndef __va_copy +error, bail out +#endif + ]])], + [gl_cv_func___va_copy=yes], + [gl_cv_func___va_copy=no])]) + if test $gl_cv_func___va_copy = yes; then + AC_DEFINE([va_copy], [__va_copy], + [Define as a macro for copying va_list variables.]) + else + AH_VERBATIM([gl_VA_COPY], [/* A replacement for va_copy, if needed. */ +#define gl_va_copy(a,b) ((a) = (b))]) + AC_DEFINE([va_copy], [gl_va_copy], + [Define as a macro for copying va_list variables.]) + fi + fi + fi + AC_SUBST([NEXT_STDARG_H]) +]) diff --git a/gl/m4/stddef_h.m4 b/gl/m4/stddef_h.m4 new file mode 100644 index 0000000..aa01221 --- /dev/null +++ b/gl/m4/stddef_h.m4 @@ -0,0 +1,119 @@ +# stddef_h.m4 serial 14 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl A placeholder for <stddef.h>, for platforms that have issues. + +AC_DEFUN_ONCE([gl_STDDEF_H], +[ + AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + + dnl Persuade OpenBSD <stddef.h> to declare max_align_t. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + GL_GENERATE_STDDEF_H=false + + dnl Test whether the type max_align_t exists and whether its alignment + dnl "is as great as is supported by the implementation in all contexts". + AC_CACHE_CHECK([for good max_align_t], + [gl_cv_type_max_align_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[/* On FreeBSD 12.0/x86, max_align_t defined by <stddef.h> has + the correct alignment with the default (wrong) definition of + _Alignof, but a wrong alignment as soon as we activate an + ISO C compliant _Alignof definition. */ + #if ((defined __GNUC__ && 4 <= __GNUC__) || defined __clang__) && !defined __cplusplus + #define _Alignof(type) __builtin_offsetof (struct { char __a; type __b; }, __b) + #endif + #include <stddef.h> + unsigned int s = sizeof (max_align_t); + #if defined __GNUC__ || defined __clang__ || defined __IBM__ALIGNOF__ + int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1]; + int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1]; + #endif + typedef struct { char a; max_align_t b; } max_helper; + typedef struct { char a; long b; } long_helper; + typedef struct { char a; double b; } double_helper; + typedef struct { char a; long double b; } long_double_helper; + int check3[2 * (offsetof (long_helper, b) <= offsetof (max_helper, b)) - 1]; + int check4[2 * (offsetof (double_helper, b) <= offsetof (max_helper, b)) - 1]; + int check5[2 * (offsetof (long_double_helper, b) <= offsetof (max_helper, b)) - 1]; + ]])], + [gl_cv_type_max_align_t=yes], + [gl_cv_type_max_align_t=no]) + ]) + if test $gl_cv_type_max_align_t = no; then + HAVE_MAX_ALIGN_T=0 + GL_GENERATE_STDDEF_H=true + fi + + if test $gt_cv_c_wchar_t = no; then + HAVE_WCHAR_T=0 + GL_GENERATE_STDDEF_H=true + fi + + AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions], + [gl_cv_decl_null_works], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h> + int test[2 * (sizeof NULL == sizeof (void *)) -1]; +]])], + [gl_cv_decl_null_works=yes], + [gl_cv_decl_null_works=no])]) + if test $gl_cv_decl_null_works = no; then + REPLACE_NULL=1 + GL_GENERATE_STDDEF_H=true + fi + + AC_CACHE_CHECK([for unreachable], + [gl_cv_func_unreachable], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + ]], + [[unreachable (); + ]])], + [gl_cv_func_unreachable=yes], + [gl_cv_func_unreachable=no]) + ]) + if test $gl_cv_func_unreachable = no; then + GL_GENERATE_STDDEF_H=true + fi + + if $GL_GENERATE_STDDEF_H; then + gl_NEXT_HEADERS([stddef.h]) + fi +]) + +# gl_STDDEF_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_STDDEF_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_STDDEF_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_STDDEF_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_STDDEF_H_MODULE_INDICATOR_DEFAULTS], [ + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_STDDEF_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) +]) + +AC_DEFUN([gl_STDDEF_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + REPLACE_NULL=0; AC_SUBST([REPLACE_NULL]) + HAVE_MAX_ALIGN_T=1; AC_SUBST([HAVE_MAX_ALIGN_T]) + HAVE_WCHAR_T=1; AC_SUBST([HAVE_WCHAR_T]) +]) diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4 new file mode 100644 index 0000000..d6961b0 --- /dev/null +++ b/gl/m4/stdint.m4 @@ -0,0 +1,531 @@ +# stdint.m4 serial 61 +dnl Copyright (C) 2001-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert and Bruno Haible. +dnl Test whether <stdint.h> is supported or must be substituted. + +AC_PREREQ([2.61]) + +AC_DEFUN_ONCE([gl_STDINT_H], +[ + AC_PREREQ([2.59])dnl + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_REQUIRE([gl_LIMITS_H]) + AC_REQUIRE([gt_TYPE_WINT_T]) + + dnl For backward compatibility. Some packages may still be testing these + dnl macros. + AC_DEFINE([HAVE_LONG_LONG_INT], [1], + [Define to 1 if the system has the type 'long long int'.]) + AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1], + [Define to 1 if the system has the type 'unsigned long long int'.]) + + dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does. + AC_CHECK_HEADERS_ONCE([wchar.h]) + if test $ac_cv_header_wchar_h = yes; then + HAVE_WCHAR_H=1 + else + HAVE_WCHAR_H=0 + fi + AC_SUBST([HAVE_WCHAR_H]) + + dnl Check for <inttypes.h>. + AC_CHECK_HEADERS_ONCE([inttypes.h]) + if test $ac_cv_header_inttypes_h = yes; then + HAVE_INTTYPES_H=1 + else + HAVE_INTTYPES_H=0 + fi + AC_SUBST([HAVE_INTTYPES_H]) + + dnl Check for <sys/types.h>. + AC_CHECK_HEADERS_ONCE([sys/types.h]) + if test $ac_cv_header_sys_types_h = yes; then + HAVE_SYS_TYPES_H=1 + else + HAVE_SYS_TYPES_H=0 + fi + AC_SUBST([HAVE_SYS_TYPES_H]) + + gl_CHECK_NEXT_HEADERS([stdint.h]) + if test $ac_cv_header_stdint_h = yes; then + HAVE_STDINT_H=1 + else + HAVE_STDINT_H=0 + fi + AC_SUBST([HAVE_STDINT_H]) + + dnl Now see whether we need a substitute <stdint.h>. + if test $ac_cv_header_stdint_h = yes; then + AC_CACHE_CHECK([whether stdint.h conforms to C99], + [gl_cv_header_working_stdint_h], + [gl_cv_header_working_stdint_h=no + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ +#define __STDC_CONSTANT_MACROS 1 +#define __STDC_LIMIT_MACROS 1 +#include <stdint.h> +/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */ +#if !(defined WCHAR_MIN && defined WCHAR_MAX) +#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>" +#endif +] +gl_STDINT_INCLUDES +[ +#ifdef INT8_MAX +int8_t a1 = INT8_MAX; +int8_t a1min = INT8_MIN; +#endif +#ifdef INT16_MAX +int16_t a2 = INT16_MAX; +int16_t a2min = INT16_MIN; +#endif +#ifdef INT32_MAX +int32_t a3 = INT32_MAX; +int32_t a3min = INT32_MIN; +#endif +#ifdef INT64_MAX +int64_t a4 = INT64_MAX; +int64_t a4min = INT64_MIN; +#endif +#ifdef UINT8_MAX +uint8_t b1 = UINT8_MAX; +#else +typedef int b1[(unsigned char) -1 != 255 ? 1 : -1]; +#endif +#ifdef UINT16_MAX +uint16_t b2 = UINT16_MAX; +#endif +#ifdef UINT32_MAX +uint32_t b3 = UINT32_MAX; +#endif +#ifdef UINT64_MAX +uint64_t b4 = UINT64_MAX; +#endif +int_least8_t c1 = INT8_C (0x7f); +int_least8_t c1max = INT_LEAST8_MAX; +int_least8_t c1min = INT_LEAST8_MIN; +int_least16_t c2 = INT16_C (0x7fff); +int_least16_t c2max = INT_LEAST16_MAX; +int_least16_t c2min = INT_LEAST16_MIN; +int_least32_t c3 = INT32_C (0x7fffffff); +int_least32_t c3max = INT_LEAST32_MAX; +int_least32_t c3min = INT_LEAST32_MIN; +int_least64_t c4 = INT64_C (0x7fffffffffffffff); +int_least64_t c4max = INT_LEAST64_MAX; +int_least64_t c4min = INT_LEAST64_MIN; +uint_least8_t d1 = UINT8_C (0xff); +uint_least8_t d1max = UINT_LEAST8_MAX; +uint_least16_t d2 = UINT16_C (0xffff); +uint_least16_t d2max = UINT_LEAST16_MAX; +uint_least32_t d3 = UINT32_C (0xffffffff); +uint_least32_t d3max = UINT_LEAST32_MAX; +uint_least64_t d4 = UINT64_C (0xffffffffffffffff); +uint_least64_t d4max = UINT_LEAST64_MAX; +int_fast8_t e1 = INT_FAST8_MAX; +int_fast8_t e1min = INT_FAST8_MIN; +int_fast16_t e2 = INT_FAST16_MAX; +int_fast16_t e2min = INT_FAST16_MIN; +int_fast32_t e3 = INT_FAST32_MAX; +int_fast32_t e3min = INT_FAST32_MIN; +int_fast64_t e4 = INT_FAST64_MAX; +int_fast64_t e4min = INT_FAST64_MIN; +uint_fast8_t f1 = UINT_FAST8_MAX; +uint_fast16_t f2 = UINT_FAST16_MAX; +uint_fast32_t f3 = UINT_FAST32_MAX; +uint_fast64_t f4 = UINT_FAST64_MAX; +#ifdef INTPTR_MAX +intptr_t g = INTPTR_MAX; +intptr_t gmin = INTPTR_MIN; +#endif +#ifdef UINTPTR_MAX +uintptr_t h = UINTPTR_MAX; +#endif +intmax_t i = INTMAX_MAX; +uintmax_t j = UINTMAX_MAX; + +/* Check that SIZE_MAX has the correct type, if possible. */ +#if 201112 <= __STDC_VERSION__ +int k = _Generic (SIZE_MAX, size_t: 0); +#elif (2 <= __GNUC__ || 4 <= __clang_major__ || defined __IBM__TYPEOF__ \ + || (0x5110 <= __SUNPRO_C && !__STDC__)) +extern size_t k; +extern __typeof__ (SIZE_MAX) k; +#endif + +#include <limits.h> /* for CHAR_BIT */ +#define TYPE_MINIMUM(t) \ + ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t))) +#define TYPE_MAXIMUM(t) \ + ((t) ((t) 0 < (t) -1 \ + ? (t) -1 \ + : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) +struct s { + int check_PTRDIFF: + PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) + && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t) + ? 1 : -1; + /* Detect bug in FreeBSD 6.0/ia64 and FreeBSD 13.0/arm64. */ + int check_SIG_ATOMIC: + SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t) + && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t) + ? 1 : -1; + int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1; + int check_WCHAR: + WCHAR_MIN == TYPE_MINIMUM (wchar_t) + && WCHAR_MAX == TYPE_MAXIMUM (wchar_t) + ? 1 : -1; + /* Detect bug in mingw. */ + int check_WINT: + WINT_MIN == TYPE_MINIMUM (wint_t) + && WINT_MAX == TYPE_MAXIMUM (wint_t) + ? 1 : -1; + + /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */ + int check_UINT8_C: + (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1; + int check_UINT16_C: + (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1; + + /* Detect bugs in OpenBSD 3.9 stdint.h. */ +#ifdef UINT8_MAX + int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1; +#endif +#ifdef UINT16_MAX + int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1; +#endif +#ifdef UINT32_MAX + int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1; +#endif +#ifdef UINT64_MAX + int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1; +#endif + int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1; + int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1; + int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1; + int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1; + int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1; + int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1; + int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1; + int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1; + int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1; + int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1; + int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1; +}; + ]])], + [dnl Determine whether the various *_MIN, *_MAX macros are usable + dnl in preprocessor expression. We could do it by compiling a test + dnl program for each of these macros. It is faster to run a program + dnl that inspects the macro expansion. + dnl This detects a bug on HP-UX 11.23/ia64. + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ +#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ +#define __STDC_CONSTANT_MACROS 1 +#define __STDC_LIMIT_MACROS 1 +#include <stdint.h> +] +gl_STDINT_INCLUDES +[ +#include <stdio.h> +#include <string.h> +#define MVAL(macro) MVAL1(macro) +#define MVAL1(expression) #expression +static const char *macro_values[] = + { +#ifdef INT8_MAX + MVAL (INT8_MAX), +#endif +#ifdef INT16_MAX + MVAL (INT16_MAX), +#endif +#ifdef INT32_MAX + MVAL (INT32_MAX), +#endif +#ifdef INT64_MAX + MVAL (INT64_MAX), +#endif +#ifdef UINT8_MAX + MVAL (UINT8_MAX), +#endif +#ifdef UINT16_MAX + MVAL (UINT16_MAX), +#endif +#ifdef UINT32_MAX + MVAL (UINT32_MAX), +#endif +#ifdef UINT64_MAX + MVAL (UINT64_MAX), +#endif + NULL + }; +]], [[ + const char **mv; + for (mv = macro_values; *mv != NULL; mv++) + { + const char *value = *mv; + /* Test whether it looks like a cast expression. */ + if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0 + || strncmp (value, "((unsigned short)"/*)*/, 17) == 0 + || strncmp (value, "((unsigned char)"/*)*/, 16) == 0 + || strncmp (value, "((int)"/*)*/, 6) == 0 + || strncmp (value, "((signed short)"/*)*/, 15) == 0 + || strncmp (value, "((signed char)"/*)*/, 14) == 0) + return mv - macro_values + 1; + } + return 0; +]])], + [gl_cv_header_working_stdint_h=yes], + [], + [case "$host_os" in + # Guess yes on native Windows. + mingw*) gl_cv_header_working_stdint_h="guessing yes" ;; + # In general, assume it works. + *) gl_cv_header_working_stdint_h="guessing yes" ;; + esac + ]) + ]) + ]) + fi + + HAVE_C99_STDINT_H=0 + HAVE_SYS_BITYPES_H=0 + HAVE_SYS_INTTYPES_H=0 + GL_GENERATE_STDINT_H=true + case "$gl_cv_header_working_stdint_h" in + *yes) + HAVE_C99_STDINT_H=1 + dnl Now see whether the system <stdint.h> works without + dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined. + dnl If not, there would be problems when stdint.h is included from C++. + AC_CACHE_CHECK([whether stdint.h works without ISO C predefines], + [gl_cv_header_stdint_without_STDC_macros], + [gl_cv_header_stdint_without_STDC_macros=no + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ +#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ +#include <stdint.h> +] +gl_STDINT_INCLUDES +[ +intmax_t im = INTMAX_MAX; +int32_t i32 = INT32_C (0x7fffffff); + ]])], + [gl_cv_header_stdint_without_STDC_macros=yes]) + ]) + + if test $gl_cv_header_stdint_without_STDC_macros = no; then + AC_DEFINE([__STDC_CONSTANT_MACROS], [1], + [Define to 1 if the system <stdint.h> predates C++11.]) + AC_DEFINE([__STDC_LIMIT_MACROS], [1], + [Define to 1 if the system <stdint.h> predates C++11.]) + fi + AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], + [gl_cv_header_stdint_width], + [gl_cv_header_stdint_width=no + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + /* Work if build is not clean. */ + #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 + #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include <stdint.h> + ]gl_STDINT_INCLUDES[ + int iw = UINTMAX_WIDTH; + ]])], + [gl_cv_header_stdint_width=yes])]) + if test "$gl_cv_header_stdint_width" = yes; then + GL_GENERATE_STDINT_H=false + fi + ;; + *) + dnl Check for <sys/inttypes.h>, and for + dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5). + AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h]) + if test $ac_cv_header_sys_inttypes_h = yes; then + HAVE_SYS_INTTYPES_H=1 + fi + if test $ac_cv_header_sys_bitypes_h = yes; then + HAVE_SYS_BITYPES_H=1 + fi + gl_STDINT_TYPE_PROPERTIES + ;; + esac + + dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. + gl_REPLACE_LIMITS_H + + AC_SUBST([HAVE_C99_STDINT_H]) + AC_SUBST([HAVE_SYS_BITYPES_H]) + AC_SUBST([HAVE_SYS_INTTYPES_H]) +]) + +dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) +dnl Determine the size of each of the given types in bits. +AC_DEFUN([gl_STDINT_BITSIZEOF], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), + [Define to the number of bits in type ']gltype['.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}], + [AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT], + [$2 +#include <limits.h>], [result=unknown]) + eval gl_cv_bitsizeof_${gltype}=\$result + ]) + eval result=\$gl_cv_bitsizeof_${gltype} + if test $result = unknown; then + dnl Use a nonempty default, because some compilers, such as IRIX 5 cc, + dnl do a syntax check even on unused #if conditions and give an error + dnl on valid C code like this: + dnl #if 0 + dnl # if > 32 + dnl # endif + dnl #endif + result=0 + fi + GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result]) + eval BITSIZEOF_${GLTYPE}=\$result + done + m4_foreach_w([gltype], [$1], + [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) +]) + +dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES) +dnl Determine the signedness of each of the given types. +dnl Define HAVE_SIGNED_TYPE if type is signed. +AC_DEFUN([gl_CHECK_TYPES_SIGNED], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), + [Define to 1 if ']gltype[' is a signed integer type.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([$2[ + int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])], + result=yes, result=no) + eval gl_cv_type_${gltype}_signed=\$result + ]) + eval result=\$gl_cv_type_${gltype}_signed + GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + if test "$result" = yes; then + AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1]) + eval HAVE_SIGNED_${GLTYPE}=1 + else + eval HAVE_SIGNED_${GLTYPE}=0 + fi + done + m4_foreach_w([gltype], [$1], + [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) +]) + +dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES) +dnl Determine the suffix to use for integer constants of the given types. +dnl Define t_SUFFIX for each such type. +AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], +[ + dnl Use a shell loop, to avoid bloating configure, and + dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into + dnl config.h.in, + dnl - extra AC_SUBST calls, so that the right substitutions are made. + m4_foreach_w([gltype], [$1], + [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX], + [Define to l, ll, u, ul, ull, etc., as suitable for + constants of type ']gltype['.])]) + for gltype in $1 ; do + AC_CACHE_CHECK([for $gltype integer literal suffix], + [gl_cv_type_${gltype}_suffix], + [eval gl_cv_type_${gltype}_suffix=no + eval result=\$gl_cv_type_${gltype}_signed + if test "$result" = yes; then + glsufu= + else + glsufu=u + fi + for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do + case $glsuf in + '') gltype1='int';; + l) gltype1='long int';; + ll) gltype1='long long int';; + i64) gltype1='__int64';; + u) gltype1='unsigned int';; + ul) gltype1='unsigned long int';; + ull) gltype1='unsigned long long int';; + ui64)gltype1='unsigned __int64';; + esac + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([$2[ + extern $gltype foo; + extern $gltype1 foo;]])], + [eval gl_cv_type_${gltype}_suffix=\$glsuf]) + eval result=\$gl_cv_type_${gltype}_suffix + test "$result" != no && break + done]) + GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` + eval result=\$gl_cv_type_${gltype}_suffix + test "$result" = no && result= + eval ${GLTYPE}_SUFFIX=\$result + AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result]) + done + m4_foreach_w([gltype], [$1], + [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) +]) + +dnl gl_STDINT_INCLUDES +AC_DEFUN([gl_STDINT_INCLUDES], +[[ + #include <stddef.h> + #include <signal.h> + #if HAVE_WCHAR_H + # include <wchar.h> + #endif +]]) + +dnl gl_STDINT_TYPE_PROPERTIES +dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t +dnl of interest to stdint.in.h. +AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], +[ + AC_REQUIRE([gl_MULTIARCH]) + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_STDINT_BITSIZEOF([ptrdiff_t size_t], + [gl_STDINT_INCLUDES]) + fi + gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) + gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) + gl_cv_type_ptrdiff_t_signed=yes + gl_cv_type_size_t_signed=no + if test $APPLE_UNIVERSAL_BUILD = 0; then + gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t], + [gl_STDINT_INCLUDES]) + fi + gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t], + [gl_STDINT_INCLUDES]) + + dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99 + dnl requirement that wint_t is "unchanged by default argument promotions". + dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t. + dnl Set the variable BITSIZEOF_WINT_T accordingly. + if test $GNULIBHEADERS_OVERRIDE_WINT_T = 1; then + BITSIZEOF_WINT_T=32 + fi +]) diff --git a/gl/m4/stdint_h.m4 b/gl/m4/stdint_h.m4 new file mode 100644 index 0000000..70349f6 --- /dev/null +++ b/gl/m4/stdint_h.m4 @@ -0,0 +1,27 @@ +# stdint_h.m4 serial 9 +dnl Copyright (C) 1997-2004, 2006, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_STDINT_H], +[ + AC_CACHE_CHECK([for stdint.h], [gl_cv_header_stdint_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + #include <stdint.h>]], + [[uintmax_t i = (uintmax_t) -1; return !i;]])], + [gl_cv_header_stdint_h=yes], + [gl_cv_header_stdint_h=no])]) + if test $gl_cv_header_stdint_h = yes; then + AC_DEFINE_UNQUOTED([HAVE_STDINT_H_WITH_UINTMAX], [1], + [Define if <stdint.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4 new file mode 100644 index 0000000..dbfa0d5 --- /dev/null +++ b/gl/m4/stdio_h.m4 @@ -0,0 +1,255 @@ +# stdio_h.m4 serial 63 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_STDIO_H_EARLY], +[ + dnl Defining __USE_MINGW_ANSI_STDIO to 1 must be done early, because + dnl the results of several configure tests depend on it: The tests + dnl - checking whether snprintf returns a byte count as in C99... + dnl - checking whether snprintf truncates the result as in C99... + dnl - checking whether printf supports the 'F' directive... + dnl - checking whether printf supports the grouping flag... + dnl - checking whether printf supports the zero flag correctly... + dnl - checking whether printf supports infinite 'double' arguments... + dnl - checking whether printf supports large precisions... + dnl report 'yes' if __USE_MINGW_ANSI_STDIO is 1 but 'no' if + dnl __USE_MINGW_ANSI_STDIO is not set. + AH_VERBATIM([MINGW_ANSI_STDIO], +[/* Use GNU style printf and scanf. */ +#ifndef __USE_MINGW_ANSI_STDIO +# undef __USE_MINGW_ANSI_STDIO +#endif +]) + AC_DEFINE([__USE_MINGW_ANSI_STDIO]) +]) + +AC_DEFUN_ONCE([gl_STDIO_H], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + gl_NEXT_HEADERS([stdio.h]) + + dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and + dnl inttypes.h behave like gnu instead of system; we must give our + dnl printf wrapper the right attribute to match. + AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros], + [gl_cv_func_printf_attribute_flavor], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #define __STDC_FORMAT_MACROS 1 + #include <stdio.h> + #include <inttypes.h> + /* For non-mingw systems, compilation will trivially succeed. + For mingw, compilation will succeed for older mingw (system + printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ + #if (defined _WIN32 && ! defined __CYGWIN__) && \ + (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) + extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; + #endif + ]])], [gl_cv_func_printf_attribute_flavor=system], + [gl_cv_func_printf_attribute_flavor=gnu])]) + if test "$gl_cv_func_printf_attribute_flavor" = gnu; then + AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1], + [Define to 1 if printf and friends should be labeled with + attribute "__gnu_printf__" instead of "__printf__"]) + fi + + dnl For defining _PRINTF_NAN_LEN_MAX. + gl_MUSL_LIBC + + dnl This ifdef is an optimization, to avoid performing a configure check whose + dnl result is not used. But it does not make the test of + dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant. + m4_ifdef([gl_NONBLOCKING_IO], [ + gl_NONBLOCKING_IO + if test $gl_cv_have_nonblocking != yes; then + REPLACE_STDIO_READ_FUNCS=1 + fi + ]) + + dnl This ifdef is an optimization, to avoid performing a configure check whose + dnl result is not used. But it does not make the test of + dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant. + m4_ifdef([gl_SIGNAL_SIGPIPE], [ + gl_SIGNAL_SIGPIPE + if test $gl_cv_header_signal_h_SIGPIPE != yes; then + REPLACE_STDIO_WRITE_FUNCS=1 + fi + ]) + dnl This ifdef is an optimization, to avoid performing a configure check whose + dnl result is not used. But it does not make the test of + dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant. + m4_ifdef([gl_NONBLOCKING_IO], [ + gl_NONBLOCKING_IO + if test $gl_cv_have_nonblocking != yes; then + REPLACE_STDIO_WRITE_FUNCS=1 + fi + ]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, and which is not + dnl guaranteed by both C89 and C11. + gl_WARN_ON_USE_PREPARE([[#include <stdio.h> + ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen + renameat snprintf tmpfile vdprintf vsnprintf]) + + AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS_ONCE([fcloseall]) + if test $ac_cv_have_decl_fcloseall = no; then + HAVE_DECL_FCLOSEALL=0 + fi + + AC_CHECK_DECLS_ONCE([getw]) + if test $ac_cv_have_decl_getw = no; then + HAVE_DECL_GETW=0 + fi + + AC_CHECK_DECLS_ONCE([putw]) + if test $ac_cv_have_decl_putw = no; then + HAVE_DECL_PUTW=0 + fi +]) + +# gl_STDIO_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_STDIO_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_STDIO_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_STDIO_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCLOSE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDOPEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFLUSH]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN_GNU]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPURGE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREAD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREOPEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSCANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEKO]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELLO]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FWRITE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCHAR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDELIM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLINE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PCLOSE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PERROR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POPEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTCHAR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMOVE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAMEAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SCANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SNPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SPRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_NONBLOCKING]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_SIGPIPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TMPFILE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VASPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFSCANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSCANF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VDPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSNPRINTF]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSPRINTF_POSIX]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FCLOSEALL], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FDOPEN], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FILENO], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETW], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_PUTW], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_TEMPNAM], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) +]) + +AC_DEFUN([gl_STDIO_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_FCLOSEALL=1; AC_SUBST([HAVE_DECL_FCLOSEALL]) + HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) + HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO]) + HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO]) + HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) + HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) + HAVE_DECL_GETW=1; AC_SUBST([HAVE_DECL_GETW]) + HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) + HAVE_DECL_PUTW=1; AC_SUBST([HAVE_DECL_PUTW]) + HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF]) + HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) + HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF]) + HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) + HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) + HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE]) + HAVE_POPEN=1; AC_SUBST([HAVE_POPEN]) + HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT]) + HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) + HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) + REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) + REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) + REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN]) + REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) + REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN]) + REPLACE_FOPEN_FOR_FOPEN_GNU=0; AC_SUBST([REPLACE_FOPEN_FOR_FOPEN_GNU]) + REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) + REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE]) + REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN]) + REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) + REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) + REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) + REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) + REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM]) + REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE]) + REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) + REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR]) + REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN]) + REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) + REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE]) + REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME]) + REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT]) + REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) + REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) + REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS]) + REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) + REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE]) + REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) + REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF]) + REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) + REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) + REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) + REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) +]) diff --git a/gl/m4/stdlib_h.m4 b/gl/m4/stdlib_h.m4 new file mode 100644 index 0000000..f47c1eb --- /dev/null +++ b/gl/m4/stdlib_h.m4 @@ -0,0 +1,256 @@ +# stdlib_h.m4 serial 75 +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_STDLIB_H], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + gl_NEXT_HEADERS([stdlib.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, and which is not + dnl guaranteed by C89. + gl_WARN_ON_USE_PREPARE([[#include <stdlib.h> +#if HAVE_SYS_LOADAVG_H +/* OpenIndiana has a bug: <sys/time.h> must be included before + <sys/loadavg.h>. */ +# include <sys/time.h> +# include <sys/loadavg.h> +#endif +#if HAVE_RANDOM_H +# include <random.h> +#endif + ]], [_Exit aligned_alloc atoll canonicalize_file_name free + getloadavg getprogname getsubopt grantpt + initstate initstate_r mbstowcs mbtowc mkdtemp mkostemp mkostemps mkstemp + mkstemps posix_memalign posix_openpt ptsname ptsname_r qsort_r + random random_r reallocarray realpath rpmatch secure_getenv setenv + setstate setstate_r srandom srandom_r + strtod strtol strtold strtoll strtoul strtoull unlockpt unsetenv]) + + AC_REQUIRE([AC_C_RESTRICT]) + + dnl Test whether MB_CUR_MAX needs to be overridden. + dnl On Solaris 10, in UTF-8 locales, its value is 3 but needs to be 4. + dnl Fortunately, we can do this because on this platform MB_LEN_MAX is 5. + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_CACHE_CHECK([whether MB_CUR_MAX is correct], + [gl_cv_macro_MB_CUR_MAX_good], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on Solaris. + solaris*) gl_cv_macro_MB_CUR_MAX_good="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_macro_MB_CUR_MAX_good="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <stdlib.h> +int main () +{ + int result = 0; + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + if (MB_CUR_MAX < 4) + result |= 1; + } + return result; +}]])], + [gl_cv_macro_MB_CUR_MAX_good=yes], + [gl_cv_macro_MB_CUR_MAX_good=no], + [:]) + fi + ]) + case "$gl_cv_macro_MB_CUR_MAX_good" in + *yes) ;; + *) REPLACE_MB_CUR_MAX=1 ;; + esac + + AC_CHECK_DECLS_ONCE([ecvt]) + if test $ac_cv_have_decl_ecvt = no; then + HAVE_DECL_ECVT=0 + fi + AC_CHECK_DECLS_ONCE([fcvt]) + if test $ac_cv_have_decl_fcvt = no; then + HAVE_DECL_FCVT=0 + fi + AC_CHECK_DECLS_ONCE([gcvt]) + if test $ac_cv_have_decl_gcvt = no; then + HAVE_DECL_GCVT=0 + fi +]) + +# gl_STDLIB_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_STDLIB_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_STDLIB_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_STDLIB_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB__EXIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ALIGNED_ALLOC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ATOLL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CALLOC_GNU]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CALLOC_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CANONICALIZE_FILE_NAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREE_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOADAVG]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPROGNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETSUBOPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GRANTPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MALLOC_GNU]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MALLOC_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSTOWCS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBTOWC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDTEMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKOSTEMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKOSTEMPS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKSTEMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKSTEMPS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POSIX_MEMALIGN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POSIX_OPENPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTSNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTSNAME_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTENV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_QSORT_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RANDOM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RANDOM_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REALLOCARRAY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REALLOC_GNU]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REALLOC_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REALPATH]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RPMATCH]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SECURE_GETENV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETENV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOLD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOLL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOUL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOULL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYSTEM_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLOCKPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNSETENV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCTOMB]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ECVT], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FCVT], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GCVT], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MKTEMP], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_PUTENV], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_STDLIB_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) +]) + +AC_DEFUN([gl_STDLIB_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE__EXIT=1; AC_SUBST([HAVE__EXIT]) + HAVE_ALIGNED_ALLOC=1; AC_SUBST([HAVE_ALIGNED_ALLOC]) + HAVE_ATOLL=1; AC_SUBST([HAVE_ATOLL]) + HAVE_CANONICALIZE_FILE_NAME=1; AC_SUBST([HAVE_CANONICALIZE_FILE_NAME]) + HAVE_DECL_ECVT=1; AC_SUBST([HAVE_DECL_ECVT]) + HAVE_DECL_FCVT=1; AC_SUBST([HAVE_DECL_FCVT]) + HAVE_DECL_GCVT=1; AC_SUBST([HAVE_DECL_GCVT]) + HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG]) + HAVE_DECL_PROGRAM_INVOCATION_NAME=1; AC_SUBST([HAVE_DECL_PROGRAM_INVOCATION_NAME]) + HAVE_GETPROGNAME=1; AC_SUBST([HAVE_GETPROGNAME]) + HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT]) + HAVE_GRANTPT=1; AC_SUBST([HAVE_GRANTPT]) + HAVE_INITSTATE=1; AC_SUBST([HAVE_INITSTATE]) + HAVE_DECL_INITSTATE=1; AC_SUBST([HAVE_DECL_INITSTATE]) + HAVE_MBTOWC=1; AC_SUBST([HAVE_MBTOWC]) + HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP]) + HAVE_MKOSTEMP=1; AC_SUBST([HAVE_MKOSTEMP]) + HAVE_MKOSTEMPS=1; AC_SUBST([HAVE_MKOSTEMPS]) + HAVE_MKSTEMP=1; AC_SUBST([HAVE_MKSTEMP]) + HAVE_MKSTEMPS=1; AC_SUBST([HAVE_MKSTEMPS]) + HAVE_POSIX_MEMALIGN=1; AC_SUBST([HAVE_POSIX_MEMALIGN]) + HAVE_POSIX_OPENPT=1; AC_SUBST([HAVE_POSIX_OPENPT]) + HAVE_PTSNAME=1; AC_SUBST([HAVE_PTSNAME]) + HAVE_PTSNAME_R=1; AC_SUBST([HAVE_PTSNAME_R]) + HAVE_QSORT_R=1; AC_SUBST([HAVE_QSORT_R]) + HAVE_RANDOM=1; AC_SUBST([HAVE_RANDOM]) + HAVE_RANDOM_H=1; AC_SUBST([HAVE_RANDOM_H]) + HAVE_RANDOM_R=1; AC_SUBST([HAVE_RANDOM_R]) + HAVE_REALLOCARRAY=1; AC_SUBST([HAVE_REALLOCARRAY]) + HAVE_REALPATH=1; AC_SUBST([HAVE_REALPATH]) + HAVE_RPMATCH=1; AC_SUBST([HAVE_RPMATCH]) + HAVE_SECURE_GETENV=1; AC_SUBST([HAVE_SECURE_GETENV]) + HAVE_SETENV=1; AC_SUBST([HAVE_SETENV]) + HAVE_DECL_SETENV=1; AC_SUBST([HAVE_DECL_SETENV]) + HAVE_SETSTATE=1; AC_SUBST([HAVE_SETSTATE]) + HAVE_DECL_SETSTATE=1; AC_SUBST([HAVE_DECL_SETSTATE]) + HAVE_STRTOD=1; AC_SUBST([HAVE_STRTOD]) + HAVE_STRTOL=1; AC_SUBST([HAVE_STRTOL]) + HAVE_STRTOLD=1; AC_SUBST([HAVE_STRTOLD]) + HAVE_STRTOLL=1; AC_SUBST([HAVE_STRTOLL]) + HAVE_STRTOUL=1; AC_SUBST([HAVE_STRTOUL]) + HAVE_STRTOULL=1; AC_SUBST([HAVE_STRTOULL]) + HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA]) + HAVE_SYS_LOADAVG_H=0; AC_SUBST([HAVE_SYS_LOADAVG_H]) + HAVE_UNLOCKPT=1; AC_SUBST([HAVE_UNLOCKPT]) + HAVE_DECL_UNSETENV=1; AC_SUBST([HAVE_DECL_UNSETENV]) + REPLACE__EXIT=0; AC_SUBST([REPLACE__EXIT]) + REPLACE_ALIGNED_ALLOC=0; AC_SUBST([REPLACE_ALIGNED_ALLOC]) + REPLACE_CALLOC_FOR_CALLOC_GNU=0; AC_SUBST([REPLACE_CALLOC_FOR_CALLOC_GNU]) + REPLACE_CALLOC_FOR_CALLOC_POSIX=0; AC_SUBST([REPLACE_CALLOC_FOR_CALLOC_POSIX]) + REPLACE_CANONICALIZE_FILE_NAME=0; AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME]) + REPLACE_FREE=0; AC_SUBST([REPLACE_FREE]) + REPLACE_GETLOADAVG=0; AC_SUBST([REPLACE_GETLOADAVG]) + REPLACE_GETPROGNAME=0; AC_SUBST([REPLACE_GETPROGNAME]) + REPLACE_GETSUBOPT=0; AC_SUBST([REPLACE_GETSUBOPT]) + REPLACE_INITSTATE=0; AC_SUBST([REPLACE_INITSTATE]) + REPLACE_MALLOC_FOR_MALLOC_GNU=0; AC_SUBST([REPLACE_MALLOC_FOR_MALLOC_GNU]) + REPLACE_MALLOC_FOR_MALLOC_POSIX=0; AC_SUBST([REPLACE_MALLOC_FOR_MALLOC_POSIX]) + REPLACE_MB_CUR_MAX=0; AC_SUBST([REPLACE_MB_CUR_MAX]) + REPLACE_MBSTOWCS=0; AC_SUBST([REPLACE_MBSTOWCS]) + REPLACE_MBTOWC=0; AC_SUBST([REPLACE_MBTOWC]) + REPLACE_MKOSTEMP=0; AC_SUBST([REPLACE_MKOSTEMP]) + REPLACE_MKOSTEMPS=0; AC_SUBST([REPLACE_MKOSTEMPS]) + REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP]) + REPLACE_POSIX_MEMALIGN=0; AC_SUBST([REPLACE_POSIX_MEMALIGN]) + REPLACE_POSIX_OPENPT=0; AC_SUBST([REPLACE_POSIX_OPENPT]) + REPLACE_PTSNAME=0; AC_SUBST([REPLACE_PTSNAME]) + REPLACE_PTSNAME_R=0; AC_SUBST([REPLACE_PTSNAME_R]) + REPLACE_PUTENV=0; AC_SUBST([REPLACE_PUTENV]) + REPLACE_QSORT_R=0; AC_SUBST([REPLACE_QSORT_R]) + REPLACE_RANDOM=0; AC_SUBST([REPLACE_RANDOM]) + REPLACE_RANDOM_R=0; AC_SUBST([REPLACE_RANDOM_R]) + REPLACE_REALLOC_FOR_REALLOC_GNU=0; AC_SUBST([REPLACE_REALLOC_FOR_REALLOC_GNU]) + REPLACE_REALLOC_FOR_REALLOC_POSIX=0; AC_SUBST([REPLACE_REALLOC_FOR_REALLOC_POSIX]) + REPLACE_REALLOCARRAY=0; AC_SUBST([REPLACE_REALLOCARRAY]) + REPLACE_REALPATH=0; AC_SUBST([REPLACE_REALPATH]) + REPLACE_SETENV=0; AC_SUBST([REPLACE_SETENV]) + REPLACE_SETSTATE=0; AC_SUBST([REPLACE_SETSTATE]) + REPLACE_STRTOD=0; AC_SUBST([REPLACE_STRTOD]) + REPLACE_STRTOL=0; AC_SUBST([REPLACE_STRTOL]) + REPLACE_STRTOLD=0; AC_SUBST([REPLACE_STRTOLD]) + REPLACE_STRTOLL=0; AC_SUBST([REPLACE_STRTOLL]) + REPLACE_STRTOUL=0; AC_SUBST([REPLACE_STRTOUL]) + REPLACE_STRTOULL=0; AC_SUBST([REPLACE_STRTOULL]) + REPLACE_UNSETENV=0; AC_SUBST([REPLACE_UNSETENV]) + REPLACE_WCTOMB=0; AC_SUBST([REPLACE_WCTOMB]) +]) diff --git a/gl/m4/stpcpy.m4 b/gl/m4/stpcpy.m4 new file mode 100644 index 0000000..f3acbee --- /dev/null +++ b/gl/m4/stpcpy.m4 @@ -0,0 +1,28 @@ +# stpcpy.m4 serial 11 +dnl Copyright (C) 2002, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STPCPY], +[ + dnl Persuade glibc <string.h> to declare stpcpy(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl The stpcpy() declaration in lib/string.in.h uses 'restrict'. + AC_REQUIRE([AC_C_RESTRICT]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + gl_CHECK_FUNCS_ANDROID([stpcpy], [[#include <string.h>]]) + if test $ac_cv_func_stpcpy = no; then + HAVE_STPCPY=0 + case "$gl_cv_onwards_func_stpcpy" in + future*) REPLACE_STPCPY=1 ;; + esac + fi +]) + +# Prerequisites of lib/stpcpy.c. +AC_DEFUN([gl_PREREQ_STPCPY], [ + : +]) diff --git a/gl/m4/strcase.m4 b/gl/m4/strcase.m4 new file mode 100644 index 0000000..3cf740d --- /dev/null +++ b/gl/m4/strcase.m4 @@ -0,0 +1,45 @@ +# strcase.m4 serial 12 +dnl Copyright (C) 2002, 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_STRCASE], +[ + gl_FUNC_STRCASECMP + gl_FUNC_STRNCASECMP +]) + +AC_DEFUN([gl_FUNC_STRCASECMP], +[ + AC_REQUIRE([gl_STRINGS_H_DEFAULTS]) + AC_CHECK_FUNCS([strcasecmp]) + if test $ac_cv_func_strcasecmp = no; then + HAVE_STRCASECMP=0 + fi +]) + +AC_DEFUN([gl_FUNC_STRNCASECMP], +[ + AC_REQUIRE([gl_STRINGS_H_DEFAULTS]) + AC_CHECK_FUNCS([strncasecmp]) + if test $ac_cv_func_strncasecmp = yes; then + HAVE_STRNCASECMP=1 + else + HAVE_STRNCASECMP=0 + fi + AC_CHECK_DECLS([strncasecmp]) + if test $ac_cv_have_decl_strncasecmp = no; then + HAVE_DECL_STRNCASECMP=0 + fi +]) + +# Prerequisites of lib/strcasecmp.c. +AC_DEFUN([gl_PREREQ_STRCASECMP], [ + : +]) + +# Prerequisites of lib/strncasecmp.c. +AC_DEFUN([gl_PREREQ_STRNCASECMP], [ + : +]) diff --git a/gl/m4/strcasestr.m4 b/gl/m4/strcasestr.m4 new file mode 100644 index 0000000..971e0b2 --- /dev/null +++ b/gl/m4/strcasestr.m4 @@ -0,0 +1,155 @@ +# strcasestr.m4 serial 28 +dnl Copyright (C) 2005, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Check that strcasestr is present and works. +AC_DEFUN([gl_FUNC_STRCASESTR_SIMPLE], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + + dnl Persuade glibc <string.h> to declare strcasestr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_FUNC_MEMCHR]) + AC_CHECK_FUNCS([strcasestr]) + if test $ac_cv_func_strcasestr = no; then + HAVE_STRCASESTR=0 + else + if test $REPLACE_MEMCHR = 1; then + REPLACE_STRCASESTR=1 + else + dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092 + dnl and https://sourceware.org/bugzilla/show_bug.cgi?id=23637. + AC_CACHE_CHECK([whether strcasestr works], + [gl_cv_func_strcasestr_works_always], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <string.h> /* for __GNU_LIBRARY__, strcasestr */ +#ifdef __GNU_LIBRARY__ + #include <features.h> + #if __GLIBC__ == 2 && __GLIBC_MINOR__ == 28 + Unlucky user + #endif +#endif +#define P "_EF_BF_BD" +#define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P +#define NEEDLE P P P P P +]], + [[return !!strcasestr (HAYSTACK, NEEDLE); + ]])], + [gl_cv_func_strcasestr_works_always=yes], + [gl_cv_func_strcasestr_works_always=no], + [dnl glibc 2.12 and cygwin 1.7.7 have a known bug. uClibc is not + dnl affected, since it uses different source code for strcasestr + dnl than glibc. + dnl Assume that it works on all other platforms, even if it is not + dnl linear. + AC_EGREP_CPP([Lucky user], + [ +#include <string.h> /* for __GNU_LIBRARY__ */ +#ifdef __GNU_LIBRARY__ + #include <features.h> + #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \ + || defined __UCLIBC__ + Lucky user + #endif +#elif defined __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7) + Lucky user + #endif +#else + Lucky user +#endif + ], + [gl_cv_func_strcasestr_works_always="guessing yes"], + [gl_cv_func_strcasestr_works_always="$gl_cross_guess_normal"]) + ]) + ]) + case "$gl_cv_func_strcasestr_works_always" in + *yes) ;; + *) + REPLACE_STRCASESTR=1 + ;; + esac + fi + fi +]) # gl_FUNC_STRCASESTR_SIMPLE + +dnl Additionally, check that strcasestr is efficient. +AC_DEFUN([gl_FUNC_STRCASESTR], +[ + AC_REQUIRE([gl_FUNC_STRCASESTR_SIMPLE]) + if test $HAVE_STRCASESTR = 1 && test $REPLACE_STRCASESTR = 0; then + AC_CACHE_CHECK([whether strcasestr works in linear time], + [gl_cv_func_strcasestr_linear], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <signal.h> /* for signal */ +#include <string.h> /* for strcasestr */ +#include <stdlib.h> /* for malloc */ +#include <unistd.h> /* for alarm */ +static void quit (int sig) { _exit (sig + 128); } +]], [[ + int result = 0; + size_t m = 1000000; + char *haystack = (char *) malloc (2 * m + 2); + char *needle = (char *) malloc (m + 2); + /* Failure to compile this test due to missing alarm is okay, + since all such platforms (mingw) also lack strcasestr. */ + signal (SIGALRM, quit); + alarm (5); + /* Check for quadratic performance. */ + if (haystack && needle) + { + memset (haystack, 'A', 2 * m); + haystack[2 * m] = 'B'; + haystack[2 * m + 1] = 0; + memset (needle, 'A', m); + needle[m] = 'B'; + needle[m + 1] = 0; + if (!strcasestr (haystack, needle)) + result |= 1; + } + /* Free allocated memory, in case some sanitizer is watching. */ + free (haystack); + free (needle); + return result; + ]])], + [gl_cv_func_strcasestr_linear=yes], [gl_cv_func_strcasestr_linear=no], + [dnl Only glibc > 2.12 and cygwin > 1.7.7 are known to have a + dnl strcasestr that works in linear time. + AC_EGREP_CPP([Lucky user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \ + && !defined __UCLIBC__ + Lucky user + #endif +#endif +#ifdef __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7) + Lucky user + #endif +#endif + ], + [gl_cv_func_strcasestr_linear="guessing yes"], + [gl_cv_func_strcasestr_linear="$gl_cross_guess_normal"]) + ]) + ]) + case "$gl_cv_func_strcasestr_linear" in + *yes) ;; + *) + REPLACE_STRCASESTR=1 + ;; + esac + fi +]) # gl_FUNC_STRCASESTR + +# Prerequisites of lib/strcasestr.c. +AC_DEFUN([gl_PREREQ_STRCASESTR], [ + : +]) diff --git a/gl/m4/strchrnul.m4 b/gl/m4/strchrnul.m4 new file mode 100644 index 0000000..9b9ab11 --- /dev/null +++ b/gl/m4/strchrnul.m4 @@ -0,0 +1,53 @@ +# strchrnul.m4 serial 12 +dnl Copyright (C) 2003, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRCHRNUL], +[ + dnl Persuade glibc <string.h> to declare strchrnul(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + gl_CHECK_FUNCS_ANDROID([strchrnul], [[#include <string.h>]]) + if test $ac_cv_func_strchrnul = no; then + HAVE_STRCHRNUL=0 + case "$gl_cv_onwards_func_strchrnul" in + future*) REPLACE_STRCHRNUL=1 ;; + esac + else + AC_CACHE_CHECK([whether strchrnul works], + [gl_cv_func_strchrnul_works], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <string.h> /* for strchrnul */ +]], [[const char *buf = "a"; + return strchrnul (buf, 'b') != buf + 1; + ]])], + [gl_cv_func_strchrnul_works=yes], + [gl_cv_func_strchrnul_works=no], + [dnl Cygwin 1.7.9 introduced strchrnul, but it was broken until 1.7.10 + AC_EGREP_CPP([Lucky user], + [ +#if defined __CYGWIN__ + #include <cygwin/version.h> + #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 9) + Lucky user + #endif +#else + Lucky user +#endif + ], + [gl_cv_func_strchrnul_works="guessing yes"], + [gl_cv_func_strchrnul_works="guessing no"]) + ]) + ]) + case "$gl_cv_func_strchrnul_works" in + *yes) ;; + *) REPLACE_STRCHRNUL=1 ;; + esac + fi +]) + +# Prerequisites of lib/strchrnul.c. +AC_DEFUN([gl_PREREQ_STRCHRNUL], [:]) diff --git a/gl/m4/strdup.m4 b/gl/m4/strdup.m4 new file mode 100644 index 0000000..ecfcdd0 --- /dev/null +++ b/gl/m4/strdup.m4 @@ -0,0 +1,32 @@ +# strdup.m4 serial 15 + +dnl Copyright (C) 2002-2023 Free Software Foundation, Inc. + +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRDUP], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([strdup]) + if test $ac_cv_have_decl_strdup = no; then + HAVE_DECL_STRDUP=0 + fi +]) + +AC_DEFUN([gl_FUNC_STRDUP_POSIX], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) + if test $gl_cv_func_malloc_posix != yes; then + REPLACE_STRDUP=1 + fi + AC_CHECK_DECLS_ONCE([strdup]) + if test $ac_cv_have_decl_strdup = no; then + HAVE_DECL_STRDUP=0 + fi +]) + +# Prerequisites of lib/strdup.c. +AC_DEFUN([gl_PREREQ_STRDUP], [:]) diff --git a/gl/m4/strerror.m4 b/gl/m4/strerror.m4 new file mode 100644 index 0000000..9f1dddd --- /dev/null +++ b/gl/m4/strerror.m4 @@ -0,0 +1,102 @@ +# strerror.m4 serial 24 +dnl Copyright (C) 2002, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRERROR], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_REQUIRE([gl_HEADER_ERRNO_H]) + AC_REQUIRE([gl_FUNC_STRERROR_0]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [ + AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS]) + ]) + if test "$GL_GENERATE_ERRNO_H:$REPLACE_STRERROR_0" = false:0; then + AC_CACHE_CHECK([for working strerror function], + [gl_cv_func_working_strerror], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <string.h> + ]], + [[if (!*strerror (-2)) return 1;]])], + [gl_cv_func_working_strerror=yes], + [gl_cv_func_working_strerror=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_working_strerror="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_working_strerror="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_working_strerror="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_working_strerror" in + *yes) ;; + *) + dnl The system's strerror() fails to return a string for out-of-range + dnl integers. Replace it. + REPLACE_STRERROR=1 + ;; + esac + m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [ + dnl If the system's strerror_r or __xpg_strerror_r clobbers strerror's + dnl buffer, we must replace strerror. + case "$gl_cv_func_strerror_r_works" in + *no) REPLACE_STRERROR=1 ;; + esac + ]) + else + dnl The system's strerror() cannot know about the new errno values we add + dnl to <errno.h>, or any fix for strerror(0). Replace it. + REPLACE_STRERROR=1 + fi +]) + +dnl Detect if strerror(0) passes (that is, does not set errno, and does not +dnl return a string that matches strerror(-1)). +AC_DEFUN([gl_FUNC_STRERROR_0], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + REPLACE_STRERROR_0=0 + AC_CACHE_CHECK([whether strerror(0) succeeds], + [gl_cv_func_strerror_0_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <string.h> + #include <errno.h> + ]], + [[int result = 0; + char *str; + errno = 0; + str = strerror (0); + if (!*str) result |= 1; + if (errno) result |= 2; + if (strstr (str, "nknown") || strstr (str, "ndefined")) + result |= 4; + return result;]])], + [gl_cv_func_strerror_0_works=yes], + [gl_cv_func_strerror_0_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_strerror_0_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl* | midipix*) gl_cv_func_strerror_0_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_strerror_0_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_strerror_0_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_strerror_0_works" in + *yes) ;; + *) + REPLACE_STRERROR_0=1 + AC_DEFINE([REPLACE_STRERROR_0], [1], [Define to 1 if strerror(0) + does not return a message implying success.]) + ;; + esac +]) diff --git a/gl/m4/string_h.m4 b/gl/m4/string_h.m4 new file mode 100644 index 0000000..7f51391 --- /dev/null +++ b/gl/m4/string_h.m4 @@ -0,0 +1,150 @@ +# Configure a GNU-like replacement for <string.h>. + +# Copyright (C) 2007-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 37 + +# Written by Paul Eggert. + +AC_DEFUN_ONCE([gl_STRING_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + gl_NEXT_HEADERS([string.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, and which is not + dnl guaranteed by C89. + gl_WARN_ON_USE_PREPARE([[#include <string.h> + ]], + [explicit_bzero ffsl ffsll memmem mempcpy memrchr memset_explicit + rawmemchr stpcpy stpncpy strchrnul + strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r + strerror_r strerrorname_np sigabbrev_np sigdescr_np strsignal strverscmp]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +# gl_STRING_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_STRING_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_STRING_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_STRING_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXPLICIT_BZERO]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFSLL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMMEM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMPCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMRCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MEMSET_EXPLICIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RAWMEMCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STPNCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCHRNUL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRDUP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNCAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNDUP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRNLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRPBRK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSEP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSTR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRCASESTR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRTOK_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSRCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSTR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASECMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNCASECMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPCASECMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCASESTR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSCSPN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSPBRK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSPN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSSEP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSTOK_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERROR_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRERRORNAME_NP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGABBREV_NP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SIGDESCR_NP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRSIGNAL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRVERSCMP]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MEMCCPY], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_STRDUP], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_STRING_H_MODULE_INDICATOR_DEFAULTS]) + dnl Make sure the shell variable for GNULIB_FREE_POSIX is initialized. + gl_STDLIB_H_REQUIRE_DEFAULTS + AC_REQUIRE([gl_STRING_H_DEFAULTS]) +]) + +AC_DEFUN([gl_STRING_H_DEFAULTS], +[ + HAVE_MBSLEN=0; AC_SUBST([HAVE_MBSLEN]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_EXPLICIT_BZERO=1; AC_SUBST([HAVE_EXPLICIT_BZERO]) + HAVE_FFSL=1; AC_SUBST([HAVE_FFSL]) + HAVE_FFSLL=1; AC_SUBST([HAVE_FFSLL]) + HAVE_DECL_MEMMEM=1; AC_SUBST([HAVE_DECL_MEMMEM]) + HAVE_MEMPCPY=1; AC_SUBST([HAVE_MEMPCPY]) + HAVE_MEMSET_EXPLICIT=1; AC_SUBST([HAVE_MEMSET_EXPLICIT]) + HAVE_DECL_MEMRCHR=1; AC_SUBST([HAVE_DECL_MEMRCHR]) + HAVE_RAWMEMCHR=1; AC_SUBST([HAVE_RAWMEMCHR]) + HAVE_STPCPY=1; AC_SUBST([HAVE_STPCPY]) + HAVE_STPNCPY=1; AC_SUBST([HAVE_STPNCPY]) + HAVE_STRCHRNUL=1; AC_SUBST([HAVE_STRCHRNUL]) + HAVE_DECL_STRDUP=1; AC_SUBST([HAVE_DECL_STRDUP]) + HAVE_DECL_STRNDUP=1; AC_SUBST([HAVE_DECL_STRNDUP]) + HAVE_DECL_STRNLEN=1; AC_SUBST([HAVE_DECL_STRNLEN]) + HAVE_STRPBRK=1; AC_SUBST([HAVE_STRPBRK]) + HAVE_STRSEP=1; AC_SUBST([HAVE_STRSEP]) + HAVE_STRCASESTR=1; AC_SUBST([HAVE_STRCASESTR]) + HAVE_DECL_STRTOK_R=1; AC_SUBST([HAVE_DECL_STRTOK_R]) + HAVE_DECL_STRERROR_R=1; AC_SUBST([HAVE_DECL_STRERROR_R]) + HAVE_STRERRORNAME_NP=1; AC_SUBST([HAVE_STRERRORNAME_NP]) + HAVE_SIGABBREV_NP=1; AC_SUBST([HAVE_SIGABBREV_NP]) + HAVE_SIGDESCR_NP=1; AC_SUBST([HAVE_SIGDESCR_NP]) + HAVE_DECL_STRSIGNAL=1; AC_SUBST([HAVE_DECL_STRSIGNAL]) + HAVE_STRVERSCMP=1; AC_SUBST([HAVE_STRVERSCMP]) + REPLACE_FFSLL=0; AC_SUBST([REPLACE_FFSLL]) + REPLACE_MEMCHR=0; AC_SUBST([REPLACE_MEMCHR]) + REPLACE_MEMMEM=0; AC_SUBST([REPLACE_MEMMEM]) + REPLACE_MEMPCPY=0; AC_SUBST([REPLACE_MEMPCPY]) + REPLACE_STPCPY=0; AC_SUBST([REPLACE_STPCPY]) + REPLACE_STPNCPY=0; AC_SUBST([REPLACE_STPNCPY]) + REPLACE_STRCHRNUL=0; AC_SUBST([REPLACE_STRCHRNUL]) + REPLACE_STRDUP=0; AC_SUBST([REPLACE_STRDUP]) + REPLACE_STRNCAT=0; AC_SUBST([REPLACE_STRNCAT]) + REPLACE_STRNDUP=0; AC_SUBST([REPLACE_STRNDUP]) + REPLACE_STRNLEN=0; AC_SUBST([REPLACE_STRNLEN]) + REPLACE_STRSTR=0; AC_SUBST([REPLACE_STRSTR]) + REPLACE_STRCASESTR=0; AC_SUBST([REPLACE_STRCASESTR]) + REPLACE_STRTOK_R=0; AC_SUBST([REPLACE_STRTOK_R]) + REPLACE_STRERROR=0; AC_SUBST([REPLACE_STRERROR]) + REPLACE_STRERROR_R=0; AC_SUBST([REPLACE_STRERROR_R]) + REPLACE_STRERRORNAME_NP=0; AC_SUBST([REPLACE_STRERRORNAME_NP]) + REPLACE_STRSIGNAL=0; AC_SUBST([REPLACE_STRSIGNAL]) + UNDEFINE_STRTOK_R=0; AC_SUBST([UNDEFINE_STRTOK_R]) +]) diff --git a/gl/m4/strings_h.m4 b/gl/m4/strings_h.m4 new file mode 100644 index 0000000..4c41221 --- /dev/null +++ b/gl/m4/strings_h.m4 @@ -0,0 +1,62 @@ +# Configure a replacement for <strings.h>. +# serial 9 + +# Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_STRINGS_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_STRINGS_H_DEFAULTS]) + + gl_CHECK_NEXT_HEADERS([strings.h]) + if test $ac_cv_header_strings_h = yes; then + HAVE_STRINGS_H=1 + else + HAVE_STRINGS_H=0 + fi + AC_SUBST([HAVE_STRINGS_H]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ + /* Minix 3.1.8 has a bug: <sys/types.h> must be included before + <strings.h>. */ + #include <sys/types.h> + #include <strings.h> + ]], [ffs strcasecmp strncasecmp]) +]) + +# gl_STRINGS_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_STRINGS_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_STRINGS_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_STRINGS_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_STRINGS_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFS]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_STRINGS_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_STRINGS_H_DEFAULTS]) +]) + +AC_DEFUN([gl_STRINGS_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_FFS=1; AC_SUBST([HAVE_FFS]) + HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP]) + HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP]) +]) diff --git a/gl/m4/strndup.m4 b/gl/m4/strndup.m4 new file mode 100644 index 0000000..9ec9715 --- /dev/null +++ b/gl/m4/strndup.m4 @@ -0,0 +1,58 @@ +# strndup.m4 serial 23 +dnl Copyright (C) 2002-2003, 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRNDUP], +[ + dnl Persuade glibc <string.h> to declare strndup(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([strndup]) + AC_CHECK_FUNCS_ONCE([strndup]) + if test $ac_cv_have_decl_strndup = no; then + HAVE_DECL_STRNDUP=0 + fi + + if test $ac_cv_func_strndup = yes; then + HAVE_STRNDUP=1 + # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'. + AC_CACHE_CHECK([for working strndup], [gl_cv_func_strndup_works], + [AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[#include <string.h> + #include <stdlib.h>]], [[ +#if !HAVE_DECL_STRNDUP + extern + #ifdef __cplusplus + "C" + #endif + char *strndup (const char *, size_t); +#endif + int result; + char *s; + s = strndup ("some longer string", 15); + free (s); + s = strndup ("shorter string", 13); + result = s[13] != '\0'; + free (s); + return result;]])], + [gl_cv_func_strndup_works=yes], + [gl_cv_func_strndup_works=no], + [ +changequote(,)dnl + case $host_os in + aix | aix[3-6]*) gl_cv_func_strndup_works="guessing no";; + *) gl_cv_func_strndup_works="guessing yes";; + esac +changequote([,])dnl + ])]) + case $gl_cv_func_strndup_works in + *no) REPLACE_STRNDUP=1 ;; + esac + else + HAVE_STRNDUP=0 + fi +]) diff --git a/gl/m4/strnlen.m4 b/gl/m4/strnlen.m4 new file mode 100644 index 0000000..d2cac59 --- /dev/null +++ b/gl/m4/strnlen.m4 @@ -0,0 +1,30 @@ +# strnlen.m4 serial 14 +dnl Copyright (C) 2002-2003, 2005-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRNLEN], +[ + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + + dnl Persuade glibc <string.h> to declare strnlen(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([strnlen]) + if test $ac_cv_have_decl_strnlen = no; then + HAVE_DECL_STRNLEN=0 + else + m4_pushdef([AC_LIBOBJ], [:]) + dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]). + AC_FUNC_STRNLEN + m4_popdef([AC_LIBOBJ]) + if test $ac_cv_func_strnlen_working = no; then + REPLACE_STRNLEN=1 + fi + fi +]) + +# Prerequisites of lib/strnlen.c. +AC_DEFUN([gl_PREREQ_STRNLEN], [:]) diff --git a/gl/m4/strsep.m4 b/gl/m4/strsep.m4 new file mode 100644 index 0000000..e0da09a --- /dev/null +++ b/gl/m4/strsep.m4 @@ -0,0 +1,23 @@ +# strsep.m4 serial 11 +dnl Copyright (C) 2002-2004, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRSEP], +[ + dnl Persuade glibc <string.h> to declare strsep(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl The strsep() declaration in lib/string.in.h uses 'restrict'. + AC_REQUIRE([AC_C_RESTRICT]) + + AC_REQUIRE([gl_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([strsep]) + if test $ac_cv_func_strsep = no; then + HAVE_STRSEP=0 + fi +]) + +# Prerequisites of lib/strsep.c. +AC_DEFUN([gl_PREREQ_STRSEP], [:]) diff --git a/gl/m4/sys_file_h.m4 b/gl/m4/sys_file_h.m4 new file mode 100644 index 0000000..60d4e30 --- /dev/null +++ b/gl/m4/sys_file_h.m4 @@ -0,0 +1,56 @@ +# Configure a replacement for <sys/file.h>. +# serial 9 + +# Copyright (C) 2008-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Richard W.M. Jones. + +AC_DEFUN_ONCE([gl_SYS_FILE_H], +[ + AC_REQUIRE([gl_SYS_FILE_H_DEFAULTS]) + + dnl <sys/file.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/file.h]) + + if test $ac_cv_header_sys_file_h = yes; then + HAVE_SYS_FILE_H=1 + else + HAVE_SYS_FILE_H=0 + fi + AC_SUBST([HAVE_SYS_FILE_H]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <sys/file.h> + ]], [flock]) +]) + +# gl_SYS_FILE_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_FILE_MODULE_INDICATOR], +[ + gl_SYS_FILE_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_FILE_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_FILE_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FLOCK]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_FILE_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_FILE_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_FILE_H_DEFAULTS], +[ + HAVE_FLOCK=1; AC_SUBST([HAVE_FLOCK]) +]) diff --git a/gl/m4/sys_ioctl_h.m4 b/gl/m4/sys_ioctl_h.m4 new file mode 100644 index 0000000..80f0510 --- /dev/null +++ b/gl/m4/sys_ioctl_h.m4 @@ -0,0 +1,79 @@ +# sys_ioctl_h.m4 serial 15 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Bruno Haible. + +AC_DEFUN_ONCE([gl_SYS_IOCTL_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) + + AC_CHECK_HEADERS_ONCE([sys/ioctl.h]) + if test $ac_cv_header_sys_ioctl_h = yes; then + HAVE_SYS_IOCTL_H=1 + dnl Test whether <sys/ioctl.h> declares ioctl(), or whether some other + dnl header file, such as <unistd.h> or <stropts.h>, is needed for that. + AC_CACHE_CHECK([whether <sys/ioctl.h> declares ioctl], + [gl_cv_decl_ioctl_in_sys_ioctl_h], + [dnl We cannot use AC_CHECK_DECL because it produces its own messages. + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/ioctl.h>]], + [[(void) ioctl;]])], + [gl_cv_decl_ioctl_in_sys_ioctl_h=yes], + [gl_cv_decl_ioctl_in_sys_ioctl_h=no]) + ]) + else + HAVE_SYS_IOCTL_H=0 + fi + AC_SUBST([HAVE_SYS_IOCTL_H]) + dnl <sys/ioctl.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/ioctl.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <sys/ioctl.h> +/* Some platforms declare ioctl in the wrong header. */ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include <unistd.h> +#endif + ]], [ioctl]) +]) + +# gl_SYS_IOCTL_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_IOCTL_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_IOCTL_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_IOCTL_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_IOCTL_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_IOCTL]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_IOCTL_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_IOCTL_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + SYS_IOCTL_H_HAVE_WINSOCK2_H=0; AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H]) + SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; + AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) + REPLACE_IOCTL=0; AC_SUBST([REPLACE_IOCTL]) +]) diff --git a/gl/m4/sys_random_h.m4 b/gl/m4/sys_random_h.m4 new file mode 100644 index 0000000..01d5fee --- /dev/null +++ b/gl/m4/sys_random_h.m4 @@ -0,0 +1,68 @@ +# sys_random_h.m4 serial 8 +dnl Copyright (C) 2020-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_SYS_RANDOM_H], +[ + AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS]) + dnl <sys/random.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/random.h]) + if test $ac_cv_header_sys_random_h = yes; then + HAVE_SYS_RANDOM_H=1 + else + HAVE_SYS_RANDOM_H=0 + fi + AC_SUBST([HAVE_SYS_RANDOM_H]) + + m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) + if test $ac_cv_header_sys_random_h = yes; then + UNISTD_H_HAVE_SYS_RANDOM_H=1 + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#if HAVE_SYS_RANDOM_H +/* Additional includes are needed before <sys/random.h> on uClibc + and Mac OS X. */ +# include <sys/types.h> +# include <stdlib.h> +# include <sys/random.h> +#endif + ]], + [getrandom]) +]) + +# gl_SYS_RANDOM_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_RANDOM_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_RANDOM_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_RANDOM_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_RANDOM_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETRANDOM]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_RANDOM_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_RANDOM_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_GETRANDOM=1; AC_SUBST([HAVE_GETRANDOM]) + REPLACE_GETRANDOM=0; AC_SUBST([REPLACE_GETRANDOM]) +]) diff --git a/gl/m4/sys_select_h.m4 b/gl/m4/sys_select_h.m4 new file mode 100644 index 0000000..4ec5ed7 --- /dev/null +++ b/gl/m4/sys_select_h.m4 @@ -0,0 +1,110 @@ +# sys_select_h.m4 serial 23 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_SYS_SELECT_H], +[ + AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_CACHE_CHECK([whether <sys/select.h> is self-contained], + [gl_cv_header_sys_select_h_selfcontained], + [ + dnl Test against two bugs: + dnl 1. On many platforms, <sys/select.h> assumes prior inclusion of + dnl <sys/types.h>. + dnl 2. On OSF/1 4.0, <sys/select.h> provides only a forward declaration + dnl of 'struct timeval', and no definition of this type. + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/select.h>]], + [[struct timeval b;]])], + [gl_cv_header_sys_select_h_selfcontained=yes], + [gl_cv_header_sys_select_h_selfcontained=no]) + dnl Test against another bug: + dnl 3. On Solaris 10, <sys/select.h> provides an FD_ZERO implementation + dnl that relies on memset(), but without including <string.h>. + if test $gl_cv_header_sys_select_h_selfcontained = yes; then + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <sys/select.h>]], + [[int memset; int bzero;]]) + ], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[#include <sys/select.h>]], [[ + #undef memset + #define memset nonexistent_memset + extern + #ifdef __cplusplus + "C" + #endif + void *memset (void *, int, unsigned long); + #undef bzero + #define bzero nonexistent_bzero + extern + #ifdef __cplusplus + "C" + #endif + void bzero (void *, unsigned long); + fd_set fds; + FD_ZERO (&fds); + ]]) + ], + [], + [gl_cv_header_sys_select_h_selfcontained=no]) + ]) + fi + ]) + dnl <sys/select.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/select.h]) + if test $ac_cv_header_sys_select_h = yes; then + HAVE_SYS_SELECT_H=1 + else + HAVE_SYS_SELECT_H=0 + fi + AC_SUBST([HAVE_SYS_SELECT_H]) + gl_PREREQ_SYS_H_WINSOCK2 + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +/* Some systems require prerequisite headers. */ +#include <sys/types.h> +#if !(defined __GLIBC__ && !defined __UCLIBC__) && HAVE_SYS_TIME_H +# include <sys/time.h> +#endif +#include <sys/select.h> + ]], [pselect select]) +]) + +# gl_SYS_SELECT_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_SELECT_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_SELECT_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_SELECT_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_SELECT_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PSELECT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SELECT]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_SELECT_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_SELECT_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_PSELECT=1; AC_SUBST([HAVE_PSELECT]) + REPLACE_PSELECT=0; AC_SUBST([REPLACE_PSELECT]) + REPLACE_SELECT=0; AC_SUBST([REPLACE_SELECT]) +]) diff --git a/gl/m4/sys_socket_h.m4 b/gl/m4/sys_socket_h.m4 new file mode 100644 index 0000000..98a1041 --- /dev/null +++ b/gl/m4/sys_socket_h.m4 @@ -0,0 +1,206 @@ +# sys_socket_h.m4 serial 29 +dnl Copyright (C) 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson. + +AC_DEFUN_ONCE([gl_SYS_SOCKET_H], +[ + AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have + dnl old-style declarations (with return type 'int' instead of 'ssize_t') + dnl unless _POSIX_PII_SOCKET is defined. + case "$host_os" in + osf*) + AC_DEFINE([_POSIX_PII_SOCKET], [1], + [Define to 1 in order to get the POSIX compatible declarations + of socket functions.]) + ;; + esac + + GL_GENERATE_SYS_SOCKET_H=false + AC_CACHE_CHECK([whether <sys/socket.h> is self-contained], + [gl_cv_header_sys_socket_h_selfcontained], + [ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])], + [gl_cv_header_sys_socket_h_selfcontained=yes], + [gl_cv_header_sys_socket_h_selfcontained=no]) + ]) + if test $gl_cv_header_sys_socket_h_selfcontained = yes; then + dnl If the shutdown function exists, <sys/socket.h> should define + dnl SHUT_RD, SHUT_WR, SHUT_RDWR. + AC_CHECK_FUNCS([shutdown]) + if test $ac_cv_func_shutdown = yes; then + AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros], + [gl_cv_header_sys_socket_h_shut], + [ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <sys/socket.h>]], + [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])], + [gl_cv_header_sys_socket_h_shut=yes], + [gl_cv_header_sys_socket_h_shut=no]) + ]) + if test $gl_cv_header_sys_socket_h_shut = no; then + GL_GENERATE_SYS_SOCKET_H=true + fi + fi + fi + # We need to check for ws2tcpip.h now. + gl_PREREQ_SYS_H_SOCKET + AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[ + /* sys/types.h is not needed according to POSIX, but the + sys/socket.h in i386-unknown-freebsd4.10 and + powerpc-apple-darwin5.5 required it. */ +#include <sys/types.h> +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_WS2TCPIP_H +#include <ws2tcpip.h> +#endif +]) + if test $ac_cv_type_struct_sockaddr_storage = no; then + HAVE_STRUCT_SOCKADDR_STORAGE=0 + fi + if test $ac_cv_type_sa_family_t = no; then + HAVE_SA_FAMILY_T=0 + fi + if test $ac_cv_type_struct_sockaddr_storage != no; then + AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family], + [], + [HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=0], + [#include <sys/types.h> + #ifdef HAVE_SYS_SOCKET_H + #include <sys/socket.h> + #endif + #ifdef HAVE_WS2TCPIP_H + #include <ws2tcpip.h> + #endif + ]) + fi + if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \ + || test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then + GL_GENERATE_SYS_SOCKET_H=true + fi + gl_PREREQ_SYS_H_WINSOCK2 + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +/* Some systems require prerequisite headers. */ +#include <sys/types.h> +#include <sys/socket.h> + ]], [socket connect accept bind getpeername getsockname getsockopt + listen recv send recvfrom sendto setsockopt shutdown accept4]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +AC_DEFUN([gl_PREREQ_SYS_H_SOCKET], +[ + dnl Check prerequisites of the <sys/socket.h> replacement. + AC_REQUIRE([gl_CHECK_SOCKET_HEADERS]) + gl_CHECK_NEXT_HEADERS([sys/socket.h]) + if test $ac_cv_header_sys_socket_h = yes; then + HAVE_SYS_SOCKET_H=1 + else + HAVE_SYS_SOCKET_H=0 + fi + AC_SUBST([HAVE_SYS_SOCKET_H]) + gl_PREREQ_SYS_H_WS2TCPIP +]) + +# Common prerequisites of the <sys/socket.h> replacement and of the +# <sys/select.h> replacement. +# Sets and substitutes HAVE_WINSOCK2_H. +AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], +[ + m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) + m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) + AC_CHECK_HEADERS_ONCE([sys/socket.h]) + if test $ac_cv_header_sys_socket_h != yes; then + dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make + dnl the check for those headers unconditional; yet cygwin reports + dnl that the headers are present but cannot be compiled (since on + dnl cygwin, all socket information should come from sys/socket.h). + AC_CHECK_HEADERS([winsock2.h]) + fi + if test "$ac_cv_header_winsock2_h" = yes; then + HAVE_WINSOCK2_H=1 + UNISTD_H_HAVE_WINSOCK2_H=1 + SYS_IOCTL_H_HAVE_WINSOCK2_H=1 + else + HAVE_WINSOCK2_H=0 + fi + AC_SUBST([HAVE_WINSOCK2_H]) +]) + +# Common prerequisites of the <sys/socket.h> replacement and of the +# <arpa/inet.h> replacement. +# Sets and substitutes HAVE_WS2TCPIP_H. +AC_DEFUN([gl_PREREQ_SYS_H_WS2TCPIP], +[ + AC_REQUIRE([gl_CHECK_SOCKET_HEADERS]) + if test $ac_cv_header_sys_socket_h = yes; then + HAVE_WS2TCPIP_H=0 + else + if test $ac_cv_header_ws2tcpip_h = yes; then + HAVE_WS2TCPIP_H=1 + else + HAVE_WS2TCPIP_H=0 + fi + fi + AC_SUBST([HAVE_WS2TCPIP_H]) +]) + +# gl_SYS_SOCKET_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_SOCKET_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_SOCKET_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_SOCKET_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SOCKET]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CONNECT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCEPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_BIND]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPEERNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETSOCKNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETSOCKOPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LISTEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RECV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SEND]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RECVFROM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SENDTO]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETSOCKOPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SHUTDOWN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCEPT4]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_SOCKET_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS], +[ + HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE]) + HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1; + AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY]) + HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T]) + HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4]) +]) diff --git a/gl/m4/sys_stat_h.m4 b/gl/m4/sys_stat_h.m4 new file mode 100644 index 0000000..ca57398 --- /dev/null +++ b/gl/m4/sys_stat_h.m4 @@ -0,0 +1,129 @@ +# sys_stat_h.m4 serial 42 -*- Autoconf -*- +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Eric Blake. +dnl Provide a GNU-like <sys/stat.h>. + +AC_DEFUN_ONCE([gl_SYS_STAT_H], +[ + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) + + dnl Check for broken stat macros. + AC_REQUIRE([AC_HEADER_STAT]) + + gl_CHECK_NEXT_HEADERS([sys/stat.h]) + + dnl Ensure the type mode_t gets defined. + AC_REQUIRE([AC_TYPE_MODE_T]) + + dnl Whether to enable precise timestamps in 'struct stat'. + m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [ + AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC]) + ], [ + WINDOWS_STAT_TIMESPEC=0 + ]) + AC_SUBST([WINDOWS_STAT_TIMESPEC]) + + dnl Whether to ensure that struct stat.st_size is 64-bit wide. + m4_ifdef([gl_LARGEFILE], [ + AC_REQUIRE([gl_LARGEFILE]) + ], [ + WINDOWS_64_BIT_ST_SIZE=0 + ]) + AC_SUBST([WINDOWS_64_BIT_ST_SIZE]) + + dnl Define types that are supposed to be defined in <sys/types.h> or + dnl <sys/stat.h>. + AC_CHECK_TYPE([nlink_t], [], + [AC_DEFINE([nlink_t], [int], + [Define to the type of st_nlink in struct stat, or a supertype.])], + [#include <sys/types.h> + #include <sys/stat.h>]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h> + ]], [chmod fchmodat fstat fstatat futimens getumask lchmod lstat + mkdirat mkfifo mkfifoat mknod mknodat stat utimensat]) + + AC_REQUIRE([AC_C_RESTRICT]) +]) + +# gl_SYS_STAT_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_STAT_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_STAT_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS], [ + gl_UNISTD_H_REQUIRE_DEFAULTS dnl for REPLACE_FCHDIR + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHMOD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHMODAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTATAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FUTIMENS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUMASK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHMOD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSTAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIRAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFO]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFOAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNOD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNODAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UTIMENSAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OVERRIDES_STRUCT_STAT]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHMOD], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MKDIR], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UMASK], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_STAT_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT]) + HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT]) + HAVE_FUTIMENS=1; AC_SUBST([HAVE_FUTIMENS]) + HAVE_GETUMASK=1; AC_SUBST([HAVE_GETUMASK]) + HAVE_LCHMOD=1; AC_SUBST([HAVE_LCHMOD]) + HAVE_LSTAT=1; AC_SUBST([HAVE_LSTAT]) + HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT]) + HAVE_MKFIFO=1; AC_SUBST([HAVE_MKFIFO]) + HAVE_MKFIFOAT=1; AC_SUBST([HAVE_MKFIFOAT]) + HAVE_MKNOD=1; AC_SUBST([HAVE_MKNOD]) + HAVE_MKNODAT=1; AC_SUBST([HAVE_MKNODAT]) + HAVE_UTIMENSAT=1; AC_SUBST([HAVE_UTIMENSAT]) + REPLACE_CHMOD=0; AC_SUBST([REPLACE_CHMOD]) + REPLACE_FCHMODAT=0; AC_SUBST([REPLACE_FCHMODAT]) + REPLACE_FSTAT=0; AC_SUBST([REPLACE_FSTAT]) + REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT]) + REPLACE_FUTIMENS=0; AC_SUBST([REPLACE_FUTIMENS]) + REPLACE_LSTAT=0; AC_SUBST([REPLACE_LSTAT]) + REPLACE_MKDIR=0; AC_SUBST([REPLACE_MKDIR]) + REPLACE_MKFIFO=0; AC_SUBST([REPLACE_MKFIFO]) + REPLACE_MKFIFOAT=0; AC_SUBST([REPLACE_MKFIFOAT]) + REPLACE_MKNOD=0; AC_SUBST([REPLACE_MKNOD]) + REPLACE_MKNODAT=0; AC_SUBST([REPLACE_MKNODAT]) + REPLACE_STAT=0; AC_SUBST([REPLACE_STAT]) + REPLACE_UTIMENSAT=0; AC_SUBST([REPLACE_UTIMENSAT]) +]) diff --git a/gl/m4/sys_time_h.m4 b/gl/m4/sys_time_h.m4 new file mode 100644 index 0000000..45a1f8b --- /dev/null +++ b/gl/m4/sys_time_h.m4 @@ -0,0 +1,120 @@ +# Configure a replacement for <sys/time.h>. +# serial 12 + +# Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert and Martin Lambers. + +AC_DEFUN_ONCE([gl_SYS_TIME_H], +[ + dnl Use AC_REQUIRE here, so that the REPLACE_GETTIMEOFDAY=0 statement + dnl below is expanded once only, before all REPLACE_GETTIMEOFDAY=1 + dnl statements that occur in other macros. + AC_REQUIRE([gl_SYS_TIME_H_DEFAULTS]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_CHECK_HEADERS_ONCE([sys/time.h]) + gl_CHECK_NEXT_HEADERS([sys/time.h]) + + if test $ac_cv_header_sys_time_h != yes; then + HAVE_SYS_TIME_H=0 + fi + + dnl On native Windows with MSVC, 'struct timeval' is defined in <winsock2.h> + dnl only. So include that header in the list. + gl_PREREQ_SYS_H_WINSOCK2 + AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#if HAVE_SYS_TIME_H + #include <sys/time.h> + #endif + #include <time.h> + #if HAVE_WINSOCK2_H + # include <winsock2.h> + #endif + ]], + [[static struct timeval x; x.tv_sec = x.tv_usec;]])], + [gl_cv_sys_struct_timeval=yes], + [gl_cv_sys_struct_timeval=no]) + ]) + if test $gl_cv_sys_struct_timeval != yes; then + HAVE_STRUCT_TIMEVAL=0 + else + dnl On native Windows with a 64-bit 'time_t', 'struct timeval' is defined + dnl (in <sys/time.h> and <winsock2.h> for mingw64, in <winsock2.h> only + dnl for MSVC) with a tv_sec field of type 'long' (32-bit!), which is + dnl smaller than the 'time_t' type mandated by POSIX. + dnl On OpenBSD 5.1 amd64, tv_sec is 64 bits and time_t 32 bits, but + dnl that is good enough. + AC_CACHE_CHECK([for wide-enough struct timeval.tv_sec member], + [gl_cv_sys_struct_timeval_tv_sec], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#if HAVE_SYS_TIME_H + #include <sys/time.h> + #endif + #include <time.h> + #if HAVE_WINSOCK2_H + # include <winsock2.h> + #endif + ]], + [[static struct timeval x; + typedef int verify_tv_sec_type[ + sizeof (time_t) <= sizeof x.tv_sec ? 1 : -1 + ]; + ]])], + [gl_cv_sys_struct_timeval_tv_sec=yes], + [gl_cv_sys_struct_timeval_tv_sec=no]) + ]) + if test $gl_cv_sys_struct_timeval_tv_sec != yes; then + REPLACE_STRUCT_TIMEVAL=1 + fi + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#if HAVE_SYS_TIME_H +# include <sys/time.h> +#endif +#include <time.h> + ]], [gettimeofday]) +]) + +# gl_SYS_TIME_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_TIME_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_TIME_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_TIME_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_TIME_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETTIMEOFDAY]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_TIME_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_TIME_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_TIME_H_DEFAULTS], +[ + dnl Assume POSIX behavior unless another module says otherwise. + HAVE_GETTIMEOFDAY=1; AC_SUBST([HAVE_GETTIMEOFDAY]) + HAVE_STRUCT_TIMEVAL=1; AC_SUBST([HAVE_STRUCT_TIMEVAL]) + HAVE_SYS_TIME_H=1; AC_SUBST([HAVE_SYS_TIME_H]) + REPLACE_GETTIMEOFDAY=0; AC_SUBST([REPLACE_GETTIMEOFDAY]) + REPLACE_STRUCT_TIMEVAL=0; AC_SUBST([REPLACE_STRUCT_TIMEVAL]) +]) diff --git a/gl/m4/sys_types_h.m4 b/gl/m4/sys_types_h.m4 new file mode 100644 index 0000000..627671f --- /dev/null +++ b/gl/m4/sys_types_h.m4 @@ -0,0 +1,70 @@ +# sys_types_h.m4 serial 13 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_SYS_TYPES_H], +[ + AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS]) + + dnl Use sane struct stat types in OpenVMS 8.2 and later. + AC_DEFINE([_USE_STD_STAT], 1, [For standard stat data types on VMS.]) + + gl_NEXT_HEADERS([sys/types.h]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Ensure the type mode_t gets defined. + AC_REQUIRE([AC_TYPE_MODE_T]) + + dnl Whether to override the 'off_t' type. + AC_REQUIRE([gl_TYPE_OFF_T]) + + dnl Whether to override the 'dev_t' and 'ino_t' types. + m4_ifdef([gl_WINDOWS_STAT_INODES], [ + AC_REQUIRE([gl_WINDOWS_STAT_INODES]) + ], [ + WINDOWS_STAT_INODES=0 + ]) + AC_SUBST([WINDOWS_STAT_INODES]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_TYPES_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_TYPE_H_MODULE_INDICATOR_DEFAULTS], [ + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_TYPE_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], +[ +]) + +# This works around a buggy version in autoconf <= 2.69. +# See <https://lists.gnu.org/r/autoconf/2016-08/msg00014.html> +# The 2.70 version isn't quoted properly, so override it too. + +m4_version_prereq([2.70.1], [], [ + +m4_undefine([AC_HEADER_MAJOR]) +AC_DEFUN([AC_HEADER_MAJOR], +[AC_CHECK_HEADERS_ONCE([sys/types.h]) +AC_CHECK_HEADER([sys/mkdev.h], + [AC_DEFINE([MAJOR_IN_MKDEV], [1], + [Define to 1 if `major', `minor', and `makedev' are + declared in <mkdev.h>.])]) +if test $ac_cv_header_sys_mkdev_h = no; then + AC_CHECK_HEADER([sys/sysmacros.h], + [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], + [Define to 1 if `major', `minor', and `makedev' + are declared in <sysmacros.h>.])]) +fi +])# AC_HEADER_MAJOR + +]) diff --git a/gl/m4/sys_uio_h.m4 b/gl/m4/sys_uio_h.m4 new file mode 100644 index 0000000..93a65d2 --- /dev/null +++ b/gl/m4/sys_uio_h.m4 @@ -0,0 +1,46 @@ +# sys_uio_h.m4 serial 3 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_SYS_UIO_H], +[ + AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS]) + dnl <sys/uio.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/uio.h]) + if test $ac_cv_header_sys_uio_h = yes; then + HAVE_SYS_UIO_H=1 + else + HAVE_SYS_UIO_H=0 + fi + AC_SUBST([HAVE_SYS_UIO_H]) +]) + +# gl_SYS_UIO_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_SYS_UIO_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_SYS_UIO_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_SYS_UIO_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_UIO_H_MODULE_INDICATOR_DEFAULTS], [ + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_UIO_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS]) +]) + +AC_DEFUN([gl_SYS_UIO_H_DEFAULTS], +[ +]) diff --git a/gl/m4/sysexits.m4 b/gl/m4/sysexits.m4 new file mode 100644 index 0000000..5dfc193 --- /dev/null +++ b/gl/m4/sysexits.m4 @@ -0,0 +1,42 @@ +# sysexits.m4 serial 7 +dnl Copyright (C) 2003, 2005, 2007, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_SYSEXITS], +[ + AC_CHECK_HEADERS_ONCE([sysexits.h]) + if test $ac_cv_header_sysexits_h = yes; then + HAVE_SYSEXITS_H=1 + gl_CHECK_NEXT_HEADERS([sysexits.h]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sysexits.h>]], + [[switch (0) + { + case EX_OK: + case EX_USAGE: + case EX_DATAERR: + case EX_NOINPUT: + case EX_NOUSER: + case EX_NOHOST: + case EX_UNAVAILABLE: + case EX_SOFTWARE: + case EX_OSERR: + case EX_OSFILE: + case EX_CANTCREAT: + case EX_IOERR: + case EX_TEMPFAIL: + case EX_PROTOCOL: + case EX_NOPERM: + case EX_CONFIG: + break; + } + ]])], + [GL_GENERATE_SYSEXITS_H=false], + [GL_GENERATE_SYSEXITS_H=true]) + else + HAVE_SYSEXITS_H=0 + GL_GENERATE_SYSEXITS_H=true + fi + AC_SUBST([HAVE_SYSEXITS_H]) +]) diff --git a/gl/m4/tempname.m4 b/gl/m4/tempname.m4 new file mode 100644 index 0000000..abed799 --- /dev/null +++ b/gl/m4/tempname.m4 @@ -0,0 +1,19 @@ +#serial 5 + +# Copyright (C) 2006-2007, 2009-2023 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# glibc provides __gen_tempname as a wrapper for mk[ds]temp. Expose +# it as a public API, and provide it on systems that are lacking. +AC_DEFUN([gl_FUNC_GEN_TEMPNAME], +[ + gl_PREREQ_TEMPNAME +]) + +# Prerequisites of lib/tempname.c. +AC_DEFUN([gl_PREREQ_TEMPNAME], +[ + : +]) diff --git a/gl/m4/termios_h.m4 b/gl/m4/termios_h.m4 new file mode 100644 index 0000000..4a69003 --- /dev/null +++ b/gl/m4/termios_h.m4 @@ -0,0 +1,58 @@ +# termios_h.m4 serial 7 +dnl Copyright (C) 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN_ONCE([gl_TERMIOS_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_TERMIOS_H_DEFAULTS]) + + gl_CHECK_NEXT_HEADERS([termios.h]) + if test $ac_cv_header_termios_h != yes; then + HAVE_TERMIOS_H=0 + fi + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use, and which is not + dnl guaranteed by C89. + gl_WARN_ON_USE_PREPARE([[#include <termios.h>]], + [tcgetsid]) +]) + +# gl_TERMIOS_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_TERMIOS_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_TERMIOS_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_TERMIOS_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_TERMIOS_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TCGETSID]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_TERMIOS_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_TERMIOS_H_DEFAULTS]) +]) + +AC_DEFUN([gl_TERMIOS_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_TCGETSID=1; AC_SUBST([HAVE_DECL_TCGETSID]) + HAVE_TERMIOS_H=1; AC_SUBST([HAVE_TERMIOS_H]) +]) diff --git a/gl/m4/threadlib.m4 b/gl/m4/threadlib.m4 new file mode 100644 index 0000000..1fc5777 --- /dev/null +++ b/gl/m4/threadlib.m4 @@ -0,0 +1,673 @@ +# threadlib.m4 serial 38 +dnl Copyright (C) 2005-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_PREREQ([2.60]) + +dnl The general structure of the multithreading modules in gnulib is that we +dnl have three set of modules: +dnl +dnl * POSIX API: +dnl pthread, which combines +dnl pthread-h +dnl pthread-thread +dnl pthread-once +dnl pthread-mutex +dnl pthread-rwlock +dnl pthread-cond +dnl pthread-tss +dnl pthread-spin +dnl sched_yield +dnl +dnl * ISO C API: +dnl threads, which combines +dnl threads-h +dnl thrd +dnl mtx +dnl cnd +dnl tss +dnl +dnl * Gnulib API, with an implementation that can be chosen at configure +dnl time through the option --enable-threads=... +dnl thread +dnl lock +dnl cond +dnl tls +dnl yield +dnl +dnl They are independent, except for the fact that +dnl - the implementation of the ISO C API may use the POSIX (or some other +dnl platform dependent) API, +dnl - the implementation of the Gnulib API may use the POSIX or ISO C or +dnl some other platform dependent API, depending on the --enable-threads +dnl option. +dnl +dnl This file contains macros for all of these APIs! + +dnl ============================================================================ +dnl Macros for all thread APIs + +AC_DEFUN([gl_ANYTHREADLIB_EARLY], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + if test -z "$gl_anythreadlib_early_done"; then + case "$host_os" in + osf*) + # On OSF/1, the compiler needs the flag -D_REENTRANT so that it + # groks <pthread.h>. cc also understands the flag -pthread, but + # we don't use it because 1. gcc-2.95 doesn't understand -pthread, + # 2. putting a flag into CPPFLAGS that has an effect on the linker + # causes the AC_LINK_IFELSE test below to succeed unexpectedly, + # leading to wrong values of LIBTHREAD and LTLIBTHREAD. + CPPFLAGS="$CPPFLAGS -D_REENTRANT" + ;; + esac + # Some systems optimize for single-threaded programs by default, and + # need special flags to disable these optimizations. For example, the + # definition of 'errno' in <errno.h>. + case "$host_os" in + aix* | freebsd*) CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE" ;; + solaris*) CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;; + esac + gl_anythreadlib_early_done=done + fi +]) + +dnl Checks whether the compiler and linker support weak declarations of symbols. + +AC_DEFUN([gl_WEAK_SYMBOLS], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether imported symbols can be declared weak], + [gl_cv_have_weak], + [case "$host_os" in + cygwin* | mingw*) + dnl On Cygwin 3.2.0 with gcc 10.2, and likewise on mingw 10.0.0 with + dnl gcc 11.3, the test below would succeed, but programs that use + dnl pthread_in_use() with weak symbol references crash miserably at + dnl runtime. + gl_cv_have_weak="guessing no" + ;; + *) + gl_cv_have_weak=no + dnl First, test whether the compiler accepts it syntactically. + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern void xyzzy (); +#pragma weak xyzzy]], + [[xyzzy();]])], + [gl_cv_have_weak=maybe]) + if test $gl_cv_have_weak = maybe; then + dnl Second, test whether it actually works. On Cygwin 1.7.2, with + dnl gcc 4.3, symbols declared weak always evaluate to the address 0. + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#pragma weak fputs +int main () +{ + return (fputs == NULL); +}]])], + [gl_cv_have_weak=yes], + [gl_cv_have_weak=no], + [dnl When cross-compiling, assume that only ELF platforms support + dnl weak symbols. + AC_EGREP_CPP([Extensible Linking Format], + [#ifdef __ELF__ + Extensible Linking Format + #endif + ], + [gl_cv_have_weak="guessing yes"], + [gl_cv_have_weak="guessing no"]) + ]) + fi + ;; + esac + dnl But when linking statically, weak symbols don't work. + case " $LDFLAGS " in + *" -static "*) gl_cv_have_weak=no ;; + esac + dnl Test for a bug in FreeBSD 11: A link error occurs when using a weak + dnl symbol and linking against a shared library that has a dependency on + dnl the shared library that defines the symbol. + case "$gl_cv_have_weak" in + *yes) + case "$host_os" in + freebsd* | dragonfly* | midnightbsd*) + : > conftest1.c + $CC $CPPFLAGS $CFLAGS $LDFLAGS -fPIC -shared -o libempty.so conftest1.c -lpthread >&AS_MESSAGE_LOG_FD 2>&1 + cat <<EOF > conftest2.c +#include <pthread.h> +#pragma weak pthread_mutexattr_gettype +int main () +{ + return (pthread_mutexattr_gettype != NULL); +} +EOF + $CC $CPPFLAGS $CFLAGS $LDFLAGS -o conftest conftest2.c libempty.so >&AS_MESSAGE_LOG_FD 2>&1 \ + || gl_cv_have_weak=no + rm -f conftest1.c libempty.so conftest2.c conftest + ;; + esac + ;; + esac + ]) + case "$gl_cv_have_weak" in + *yes) + AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], + [Define to 1 if the compiler and linker support weak declarations of symbols.]) + ;; + esac +]) + +dnl ============================================================================ +dnl Macros for the POSIX API + +dnl gl_PTHREADLIB +dnl ------------- +dnl Tests for the libraries needs for using the POSIX threads API. +dnl Sets the variable LIBPTHREAD to the linker options for use in a Makefile. +dnl Sets the variable LIBPMULTITHREAD, for programs that really need +dnl multithread functionality. The difference between LIBPTHREAD and +dnl LIBPMULTITHREAD is that on platforms supporting weak symbols, typically +dnl LIBPTHREAD is empty whereas LIBPMULTITHREAD is not. +dnl Sets the variable SCHED_YIELD_LIB to the linker options needed to use the +dnl sched_yield() function. +dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for +dnl multithread-safe programs. +dnl Defines the C macro HAVE_PTHREAD_API if (at least parts of) the POSIX +dnl threads API is available. + +dnl The guts of gl_PTHREADLIB. Needs to be expanded only once. + +AC_DEFUN([gl_PTHREADLIB_BODY], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + if test -z "$gl_pthreadlib_body_done"; then + gl_pthread_api=no + LIBPTHREAD= + LIBPMULTITHREAD= + # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that + # it groks <pthread.h>. It's added above, in gl_ANYTHREADLIB_EARLY. + AC_CHECK_HEADER([pthread.h], + [gl_have_pthread_h=yes], [gl_have_pthread_h=no]) + if test "$gl_have_pthread_h" = yes; then + # Other possible tests: + # -lpthreads (FSU threads, PCthreads) + # -lgthreads + # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist + # in libc. IRIX 6.5 has the first one in both libc and libpthread, but + # the second one only in libpthread, and lock.c needs it. + # + # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04 + # needs -pthread for some reason. See: + # https://lists.gnu.org/r/bug-gnulib/2014-09/msg00023.html + save_LIBS=$LIBS + for gl_pthread in '' '-pthread'; do + LIBS="$LIBS $gl_pthread" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <pthread.h> + pthread_mutex_t m; + pthread_mutexattr_t ma; + ]], + [[pthread_mutex_lock (&m); + pthread_mutexattr_init (&ma);]])], + [gl_pthread_api=yes + LIBPTHREAD=$gl_pthread + LIBPMULTITHREAD=$gl_pthread]) + LIBS=$save_LIBS + test $gl_pthread_api = yes && break + done + echo "$as_me:__oline__: gl_pthread_api=$gl_pthread_api" >&AS_MESSAGE_LOG_FD + echo "$as_me:__oline__: LIBPTHREAD=$LIBPTHREAD" >&AS_MESSAGE_LOG_FD + + gl_pthread_in_glibc=no + # On Linux with glibc >= 2.34, libc contains the fully functional + # pthread functions. + case "$host_os" in + linux*) + AC_EGREP_CPP([Lucky user], + [#include <features.h> + #ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 34) || (__GLIBC__ > 2) + Lucky user + #endif + #endif + ], + [gl_pthread_in_glibc=yes], + []) + ;; + esac + echo "$as_me:__oline__: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&AS_MESSAGE_LOG_FD + + # Test for libpthread by looking for pthread_kill. (Not pthread_self, + # since it is defined as a macro on OSF/1.) + if test $gl_pthread_api = yes && test -z "$LIBPTHREAD"; then + # The program links fine without libpthread. But it may actually + # need to link with libpthread in order to create multiple threads. + AC_CHECK_LIB([pthread], [pthread_kill], + [if test $gl_pthread_in_glibc = yes; then + LIBPMULTITHREAD= + else + LIBPMULTITHREAD=-lpthread + # On Solaris and HP-UX, most pthread functions exist also in libc. + # Therefore pthread_in_use() needs to actually try to create a + # thread: pthread_create from libc will fail, whereas + # pthread_create will actually create a thread. + # On Solaris 10 or newer, this test is no longer needed, because + # libc contains the fully functional pthread functions. + case "$host_os" in +changequote(,)dnl + solaris | solaris2.[1-9] | solaris2.[1-9].* | hpux*) +changequote([,])dnl + AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1], + [Define if the pthread_in_use() detection is hard.]) + esac + fi + ]) + elif test $gl_pthread_api != yes; then + # Some library is needed. Try libpthread and libc_r. + AC_CHECK_LIB([pthread], [pthread_kill], + [gl_pthread_api=yes + LIBPTHREAD=-lpthread + LIBPMULTITHREAD=-lpthread]) + if test $gl_pthread_api != yes; then + # For FreeBSD 4. + AC_CHECK_LIB([c_r], [pthread_kill], + [gl_pthread_api=yes + LIBPTHREAD=-lc_r + LIBPMULTITHREAD=-lc_r]) + fi + fi + echo "$as_me:__oline__: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&AS_MESSAGE_LOG_FD + fi + AC_MSG_CHECKING([whether POSIX threads API is available]) + AC_MSG_RESULT([$gl_pthread_api]) + AC_SUBST([LIBPTHREAD]) + AC_SUBST([LIBPMULTITHREAD]) + if test $gl_pthread_api = yes; then + AC_DEFINE([HAVE_PTHREAD_API], [1], + [Define if you have the <pthread.h> header and the POSIX threads API.]) + fi + + dnl On some systems, sched_yield is in librt, rather than in libpthread. + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sched.h>]], + [[sched_yield ();]])], + [SCHED_YIELD_LIB= + ], + [dnl Solaris 7...10 has sched_yield in librt, not in libpthread or libc. + AC_CHECK_LIB([rt], [sched_yield], [SCHED_YIELD_LIB=-lrt], + [dnl Solaris 2.5.1, 2.6 has sched_yield in libposix4, not librt. + AC_CHECK_LIB([posix4], [sched_yield], [SCHED_YIELD_LIB=-lposix4])]) + ]) + AC_SUBST([SCHED_YIELD_LIB]) + dnl For backward compatibility. + LIB_SCHED_YIELD="$SCHED_YIELD_LIB" + AC_SUBST([LIB_SCHED_YIELD]) + + gl_pthreadlib_body_done=done + fi +]) + +AC_DEFUN([gl_PTHREADLIB], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + gl_PTHREADLIB_BODY +]) + +dnl ============================================================================ +dnl Macros for the ISO C API + +dnl gl_STDTHREADLIB +dnl --------------- +dnl Tests for the libraries needs for using the ISO C threads API. +dnl Sets the variable LIBSTDTHREAD to the linker options for use in a Makefile. +dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for +dnl multithread-safe programs. +dnl Defines the C macro HAVE_THREADS_H if (at least parts of) the ISO C threads +dnl API is available. + +dnl The guts of gl_STDTHREADLIB. Needs to be expanded only once. + +AC_DEFUN([gl_STDTHREADLIB_BODY], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + AC_REQUIRE([AC_CANONICAL_HOST]) + if test -z "$gl_stdthreadlib_body_done"; then + AC_CHECK_HEADERS_ONCE([threads.h]) + + case "$host_os" in + mingw*) + LIBSTDTHREAD= + ;; + *) + gl_PTHREADLIB_BODY + if test $ac_cv_header_threads_h = yes; then + dnl glibc >= 2.29 has thrd_create in libpthread. + dnl FreeBSD >= 10 has thrd_create in libstdthreads; this library depends + dnl on libpthread (for the symbol 'pthread_mutexattr_gettype'). + dnl glibc >= 2.34, AIX >= 7.1, and Solaris >= 11.4 have thrd_create in + dnl libc. + gl_CHECK_FUNCS_ANDROID([thrd_create], [[#include <threads.h>]]) + if test $ac_cv_func_thrd_create = yes; then + LIBSTDTHREAD= + else + AC_CHECK_LIB([stdthreads], [thrd_create], [ + LIBSTDTHREAD='-lstdthreads -lpthread' + ], [ + dnl Guess that thrd_create is in libpthread. + LIBSTDTHREAD="$LIBPMULTITHREAD" + ]) + fi + else + dnl Libraries needed by thrd.c, mtx.c, cnd.c, tss.c. + LIBSTDTHREAD="$LIBPMULTITHREAD $SCHED_YIELD_LIB" + fi + ;; + esac + AC_SUBST([LIBSTDTHREAD]) + + AC_MSG_CHECKING([whether ISO C threads API is available]) + AC_MSG_RESULT([$ac_cv_header_threads_h]) + gl_stdthreadlib_body_done=done + fi +]) + +AC_DEFUN([gl_STDTHREADLIB], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + gl_STDTHREADLIB_BODY +]) + +dnl ============================================================================ +dnl Macros for the Gnulib API + +dnl gl_THREADLIB +dnl ------------ +dnl Tests for a multithreading library to be used. +dnl If the configure.ac contains a definition of the gl_THREADLIB_DEFAULT_NO +dnl (it must be placed before the invocation of gl_THREADLIB_EARLY!), then the +dnl default is 'no', otherwise it is system dependent. In both cases, the user +dnl can change the choice through the options --enable-threads=choice or +dnl --disable-threads. +dnl Defines at most one of the macros USE_ISOC_THREADS, USE_POSIX_THREADS, +dnl USE_ISOC_AND_POSIX_THREADS, USE_WINDOWS_THREADS. +dnl The choice --enable-threads=isoc+posix is available only on platforms that +dnl have both the ISO C and the POSIX threads APIs. It has the effect of using +dnl the ISO C API for most things and the POSIX API only for creating and +dnl controlling threads (because there is no equivalent to pthread_atfork in +dnl the ISO C API). +dnl Sets the variables LIBTHREAD and LTLIBTHREAD to the linker options for use +dnl in a Makefile (LIBTHREAD for use without libtool, LTLIBTHREAD for use with +dnl libtool). +dnl Sets the variables LIBMULTITHREAD and LTLIBMULTITHREAD similarly, for +dnl programs that really need multithread functionality. The difference +dnl between LIBTHREAD and LIBMULTITHREAD is that on platforms supporting weak +dnl symbols, typically LIBTHREAD is empty whereas LIBMULTITHREAD is not. +dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for +dnl multithread-safe programs. +dnl Since support for GNU pth was removed, $LTLIBTHREAD and $LIBTHREAD have the +dnl same value, and similarly $LTLIBMULTITHREAD and $LIBMULTITHREAD have the +dnl same value. Only system libraries are needed. + +AC_DEFUN([gl_THREADLIB_EARLY], +[ + AC_REQUIRE([gl_THREADLIB_EARLY_BODY]) +]) + +dnl The guts of gl_THREADLIB_EARLY. Needs to be expanded only once. + +AC_DEFUN([gl_THREADLIB_EARLY_BODY], +[ + dnl Ordering constraints: This macro modifies CPPFLAGS in a way that + dnl influences the result of the autoconf tests that test for *_unlocked + dnl declarations, on AIX 5 at least. Therefore it must come early. + AC_BEFORE([$0], [gl_FUNC_GLIBC_UNLOCKED_IO])dnl + AC_BEFORE([$0], [gl_ARGP])dnl + + AC_REQUIRE([AC_CANONICAL_HOST]) + dnl _GNU_SOURCE is needed for pthread_rwlock_t on glibc systems. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + dnl Check for multithreading. + m4_ifdef([gl_THREADLIB_DEFAULT_NO], + [m4_divert_text([DEFAULTS], [gl_use_threads_default=no])], + [m4_divert_text([DEFAULTS], [gl_use_threads_default=])]) + dnl gl_use_winpthreads_default defaults to 'no', because in mingw 10, like + dnl in mingw 5, the use of libwinpthread still makes test-pthread-tss crash. + m4_divert_text([DEFAULTS], [gl_use_winpthreads_default=no]) + AC_ARG_ENABLE([threads], +AS_HELP_STRING([[--enable-threads={isoc|posix|isoc+posix|windows}]], [specify multithreading API])m4_ifdef([gl_THREADLIB_DEFAULT_NO], [], [ +AS_HELP_STRING([[--disable-threads]], [build without multithread safety])]), + [gl_use_threads=$enableval], + [if test -n "$gl_use_threads_default"; then + gl_use_threads="$gl_use_threads_default" + else +changequote(,)dnl + case "$host_os" in + dnl Disable multithreading by default on OSF/1, because it interferes + dnl with fork()/exec(): When msgexec is linked with -lpthread, its + dnl child process gets an endless segmentation fault inside execvp(). + osf*) gl_use_threads=no ;; + dnl Disable multithreading by default on Cygwin 1.5.x, because it has + dnl bugs that lead to endless loops or crashes. See + dnl <https://cygwin.com/ml/cygwin/2009-08/msg00283.html>. + cygwin*) + case `uname -r` in + 1.[0-5].*) gl_use_threads=no ;; + *) gl_use_threads=yes ;; + esac + ;; + dnl Obey gl_AVOID_WINPTHREAD on mingw. + mingw*) + case "$gl_use_winpthreads_default" in + yes) gl_use_threads=posix ;; + no) gl_use_threads=windows ;; + *) gl_use_threads=yes ;; + esac + ;; + *) gl_use_threads=yes ;; + esac +changequote([,])dnl + fi + ]) + if test "$gl_use_threads" = yes \ + || test "$gl_use_threads" = isoc \ + || test "$gl_use_threads" = posix \ + || test "$gl_use_threads" = isoc+posix; then + # For using <threads.h> or <pthread.h>: + gl_ANYTHREADLIB_EARLY + fi +]) + +dnl The guts of gl_THREADLIB. Needs to be expanded only once. + +AC_DEFUN([gl_THREADLIB_BODY], +[ + AC_REQUIRE([gl_THREADLIB_EARLY_BODY]) + gl_threads_api=none + LIBTHREAD= + LTLIBTHREAD= + LIBMULTITHREAD= + LTLIBMULTITHREAD= + if test "$gl_use_threads" != no; then + dnl Check whether the compiler and linker support weak declarations. + gl_WEAK_SYMBOLS + if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then + dnl If we use weak symbols to implement pthread_in_use / pth_in_use / + dnl thread_in_use, we also need to test whether the ISO C 11 thrd_create + dnl facility is in use. + AC_CHECK_HEADERS_ONCE([threads.h]) + : + fi + if test "$gl_use_threads" = isoc || test "$gl_use_threads" = isoc+posix; then + AC_CHECK_HEADERS_ONCE([threads.h]) + gl_have_isoc_threads="$ac_cv_header_threads_h" + fi + if test "$gl_use_threads" = yes \ + || test "$gl_use_threads" = posix \ + || test "$gl_use_threads" = isoc+posix; then + gl_PTHREADLIB_BODY + LIBTHREAD=$LIBPTHREAD LTLIBTHREAD=$LIBPTHREAD + LIBMULTITHREAD=$LIBPMULTITHREAD LTLIBMULTITHREAD=$LIBPMULTITHREAD + if test $gl_pthread_api = yes; then + if test "$gl_use_threads" = isoc+posix && test "$gl_have_isoc_threads" = yes; then + gl_threads_api='isoc+posix' + AC_DEFINE([USE_ISOC_AND_POSIX_THREADS], [1], + [Define if the combination of the ISO C and POSIX multithreading APIs can be used.]) + LIBTHREAD= LTLIBTHREAD= + else + gl_threads_api=posix + AC_DEFINE([USE_POSIX_THREADS], [1], + [Define if the POSIX multithreading library can be used.]) + if test -z "$LIBMULTITHREAD" && test -z "$LTLIBMULTITHREAD"; then + AC_DEFINE([USE_POSIX_THREADS_FROM_LIBC], [1], + [Define if references to the POSIX multithreading library are satisfied by libc.]) + else + if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then + AC_DEFINE([USE_POSIX_THREADS_WEAK], [1], + [Define if references to the POSIX multithreading library should be made weak.]) + LIBTHREAD= LTLIBTHREAD= + else + case "$host_os" in + freebsd* | dragonfly* | midnightbsd*) + if test "x$LIBTHREAD" != "x$LIBMULTITHREAD"; then + dnl If weak symbols can't tell whether pthread_create(), pthread_key_create() + dnl etc. will succeed, we need a runtime test. + AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1], + [Define if the pthread_in_use() detection is hard.]) + fi + ;; + esac + fi + fi + fi + fi + fi + if test $gl_threads_api = none; then + if test "$gl_use_threads" = isoc && test "$gl_have_isoc_threads" = yes; then + gl_STDTHREADLIB_BODY + LIBTHREAD=$LIBSTDTHREAD LTLIBTHREAD=$LIBSTDTHREAD + LIBMULTITHREAD=$LIBSTDTHREAD LTLIBMULTITHREAD=$LIBSTDTHREAD + gl_threads_api=isoc + AC_DEFINE([USE_ISOC_THREADS], [1], + [Define if the ISO C multithreading library can be used.]) + fi + fi + if test $gl_threads_api = none; then + case "$gl_use_threads" in + yes | windows | win32) # The 'win32' is for backward compatibility. + if { case "$host_os" in + mingw*) true;; + *) false;; + esac + }; then + gl_threads_api=windows + AC_DEFINE([USE_WINDOWS_THREADS], [1], + [Define if the native Windows multithreading API can be used.]) + fi + ;; + esac + fi + fi + AC_MSG_CHECKING([for multithread API to use]) + AC_MSG_RESULT([$gl_threads_api]) + AC_SUBST([LIBTHREAD]) + AC_SUBST([LTLIBTHREAD]) + AC_SUBST([LIBMULTITHREAD]) + AC_SUBST([LTLIBMULTITHREAD]) +]) + +AC_DEFUN([gl_THREADLIB], +[ + AC_REQUIRE([gl_THREADLIB_EARLY]) + AC_REQUIRE([gl_THREADLIB_BODY]) +]) + + +dnl gl_DISABLE_THREADS +dnl ------------------ +dnl Sets the gl_THREADLIB default so that threads are not used by default. +dnl The user can still override it at installation time, by using the +dnl configure option '--enable-threads'. + +AC_DEFUN([gl_DISABLE_THREADS], [ + m4_divert_text([INIT_PREPARE], [gl_use_threads_default=no]) +]) + + +dnl gl_AVOID_WINPTHREAD +dnl ------------------- +dnl Sets the gl_THREADLIB default so that on mingw, a dependency to the +dnl libwinpthread DLL (mingw-w64 winpthreads library) is avoided. +dnl The user can still override it at installation time, by using the +dnl configure option '--enable-threads=posix'. +dnl As of 2023, this is now the default. + +AC_DEFUN([gl_AVOID_WINPTHREAD], [ + m4_divert_text([INIT_PREPARE], [gl_use_winpthreads_default=no]) +]) + + +dnl ============================================================================ + + +dnl Survey of platforms: +dnl +dnl Platform Available Compiler Supports test-lock +dnl flavours option weak result +dnl --------------- --------- --------- -------- --------- +dnl Linux 2.4/glibc posix -lpthread Y OK +dnl +dnl Linux/glibc 2.34 posix Y OK +dnl +dnl GNU Hurd/glibc posix -lpthread Y OK +dnl +dnl Ubuntu 14.04 posix -pthread Y OK +dnl +dnl FreeBSD 5.3 posix -lc_r Y +dnl posix -lkse ? Y +dnl posix -lpthread ? Y +dnl posix -lthr Y +dnl +dnl FreeBSD 5.2 posix -lc_r Y +dnl posix -lkse Y +dnl posix -lthr Y +dnl +dnl FreeBSD 4.0,4.10 posix -lc_r Y OK +dnl +dnl NetBSD 1.6 -- +dnl +dnl OpenBSD 3.4 posix -lpthread Y OK +dnl +dnl Mac OS X 10.[123] posix -lpthread Y OK +dnl +dnl Solaris 7,8,9 posix -lpthread Y Sol 7,8: 0.0; Sol 9: OK +dnl +dnl HP-UX 11 posix -lpthread N (cc) OK +dnl Y (gcc) +dnl +dnl IRIX 6.5 posix -lpthread Y 0.5 +dnl +dnl AIX 4.3,5.1 posix -lpthread N AIX 4: 0.5; AIX 5: OK +dnl +dnl OSF/1 4.0,5.1 posix -pthread (cc) N OK +dnl -lpthread (gcc) Y +dnl +dnl Cygwin posix -lpthread Y OK +dnl +dnl Mingw windows N OK +dnl +dnl BeOS 5 -- +dnl +dnl The test-lock result shows what happens if in test-lock.c EXPLICIT_YIELD is +dnl turned off: +dnl OK if all three tests terminate OK, +dnl 0.5 if the first test terminates OK but the second one loops endlessly, +dnl 0.0 if the first test already loops endlessly. diff --git a/gl/m4/time_h.m4 b/gl/m4/time_h.m4 new file mode 100644 index 0000000..51d553a --- /dev/null +++ b/gl/m4/time_h.m4 @@ -0,0 +1,186 @@ +# Configure a more-standard replacement for <time.h>. + +# Copyright (C) 2000-2001, 2003-2007, 2009-2023 Free Software Foundation, Inc. + +# serial 22 + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert and Jim Meyering. + +AC_DEFUN_ONCE([gl_TIME_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_TIME_H_DEFAULTS]) + + gl_NEXT_HEADERS([time.h]) + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#include <time.h> + ]], [asctime_r ctime_r]) + + AC_REQUIRE([AC_C_RESTRICT]) + + AC_CACHE_CHECK([for TIME_UTC in <time.h>], + [gl_cv_time_h_has_TIME_UTC], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + ]], + [[static int x = TIME_UTC; x++;]])], + [gl_cv_time_h_has_TIME_UTC=yes], + [gl_cv_time_h_has_TIME_UTC=no])]) + if test $gl_cv_time_h_has_TIME_UTC = yes; then + TIME_H_DEFINES_TIME_UTC=1 + else + TIME_H_DEFINES_TIME_UTC=0 + fi + AC_SUBST([TIME_H_DEFINES_TIME_UTC]) +]) + +dnl Check whether 'struct timespec' is declared +dnl in time.h, sys/time.h, pthread.h, or unistd.h. + +AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC], +[ + AC_CHECK_HEADERS_ONCE([sys/time.h]) + AC_CACHE_CHECK([for struct timespec in <time.h>], + [gl_cv_sys_struct_timespec_in_time_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <time.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [gl_cv_sys_struct_timespec_in_time_h=yes], + [gl_cv_sys_struct_timespec_in_time_h=no])]) + + TIME_H_DEFINES_STRUCT_TIMESPEC=0 + SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0 + PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0 + UNISTD_H_DEFINES_STRUCT_TIMESPEC=0 + if test $gl_cv_sys_struct_timespec_in_time_h = yes; then + TIME_H_DEFINES_STRUCT_TIMESPEC=1 + else + AC_CACHE_CHECK([for struct timespec in <sys/time.h>], + [gl_cv_sys_struct_timespec_in_sys_time_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/time.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [gl_cv_sys_struct_timespec_in_sys_time_h=yes], + [gl_cv_sys_struct_timespec_in_sys_time_h=no])]) + if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then + SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1 + else + AC_CACHE_CHECK([for struct timespec in <pthread.h>], + [gl_cv_sys_struct_timespec_in_pthread_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <pthread.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [gl_cv_sys_struct_timespec_in_pthread_h=yes], + [gl_cv_sys_struct_timespec_in_pthread_h=no])]) + if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then + PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1 + else + AC_CACHE_CHECK([for struct timespec in <unistd.h>], + [gl_cv_sys_struct_timespec_in_unistd_h], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> + ]], + [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], + [gl_cv_sys_struct_timespec_in_unistd_h=yes], + [gl_cv_sys_struct_timespec_in_unistd_h=no])]) + if test $gl_cv_sys_struct_timespec_in_unistd_h = yes; then + UNISTD_H_DEFINES_STRUCT_TIMESPEC=1 + fi + fi + fi + fi + AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC]) + AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC]) + AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC]) + AC_SUBST([UNISTD_H_DEFINES_STRUCT_TIMESPEC]) +]) + +# gl_TIME_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_TIME_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_TIME_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_TIME_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_TIME_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CTIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKTIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALTIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NANOSLEEP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRFTIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRPTIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMEGM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMESPEC_GET]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMESPEC_GETRES]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIME_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIME_RZ]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TZSET]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_TZSET], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_TIME_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_TIME_H_DEFAULTS]) +]) + +AC_DEFUN([gl_TIME_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_LOCALTIME_R=1; AC_SUBST([HAVE_DECL_LOCALTIME_R]) + HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP]) + HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME]) + HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM]) + HAVE_TIMESPEC_GET=1; AC_SUBST([HAVE_TIMESPEC_GET]) + HAVE_TIMESPEC_GETRES=1; AC_SUBST([HAVE_TIMESPEC_GETRES]) + dnl Even GNU libc does not have timezone_t yet. + HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T]) + dnl If another module says to replace or to not replace, do that. + dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK; + dnl this lets maintainers check for portability. + REPLACE_CTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_CTIME]) + REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R]) + REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME]) + REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP]) + REPLACE_STRFTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRFTIME]) + REPLACE_TIME=0; AC_SUBST([REPLACE_TIME]) + REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM]) + REPLACE_TIMESPEC_GET=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMESPEC_GET]) + REPLACE_TZSET=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TZSET]) + + dnl Hack so that the time module doesn't depend on the sys_time module. + dnl First, default GNULIB_GETTIMEOFDAY to 0 if sys_time is absent. + : ${GNULIB_GETTIMEOFDAY=0}; AC_SUBST([GNULIB_GETTIMEOFDAY]) + dnl Second, it's OK to not use GNULIB_PORTCHECK for REPLACE_GMTIME + dnl and REPLACE_LOCALTIME, as portability to Solaris 2.6 and earlier + dnl is no longer a big deal. + REPLACE_GMTIME=0; AC_SUBST([REPLACE_GMTIME]) + REPLACE_LOCALTIME=0; AC_SUBST([REPLACE_LOCALTIME]) +]) diff --git a/gl/m4/timespec.m4 b/gl/m4/timespec.m4 new file mode 100644 index 0000000..95f475f --- /dev/null +++ b/gl/m4/timespec.m4 @@ -0,0 +1,11 @@ +#serial 15 + +# Copyright (C) 2000-2001, 2003-2007, 2009-2023 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering + +AC_DEFUN([gl_TIMESPEC], [:]) diff --git a/gl/m4/uintmax_t.m4 b/gl/m4/uintmax_t.m4 new file mode 100644 index 0000000..c6ff800 --- /dev/null +++ b/gl/m4/uintmax_t.m4 @@ -0,0 +1,30 @@ +# uintmax_t.m4 serial 12 +dnl Copyright (C) 1997-2004, 2007-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_PREREQ([2.13]) + +# Define uintmax_t to 'unsigned long' or 'unsigned long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_UINTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) + test $ac_cv_type_unsigned_long_long_int = yes \ + && ac_type='unsigned long long' \ + || ac_type='unsigned long' + AC_DEFINE_UNQUOTED([uintmax_t], [$ac_type], + [Define to unsigned long or unsigned long long + if <stdint.h> and <inttypes.h> don't define.]) + else + AC_DEFINE([HAVE_UINTMAX_T], [1], + [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) diff --git a/gl/m4/unistd-safer.m4 b/gl/m4/unistd-safer.m4 new file mode 100644 index 0000000..ced03b0 --- /dev/null +++ b/gl/m4/unistd-safer.m4 @@ -0,0 +1,10 @@ +#serial 9 +dnl Copyright (C) 2002, 2005-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_UNISTD_SAFER], +[ + AC_CHECK_FUNCS_ONCE([pipe]) +]) diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4 new file mode 100644 index 0000000..1c96158 --- /dev/null +++ b/gl/m4/unistd_h.m4 @@ -0,0 +1,275 @@ +# unistd_h.m4 serial 94 +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Simon Josefsson, Bruno Haible. + +AC_DEFUN_ONCE([gl_UNISTD_H], +[ + dnl Ensure to expand the default settings once only, before all statements + dnl that occur in other macros. + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + gl_CHECK_NEXT_HEADERS([unistd.h]) + if test $ac_cv_header_unistd_h = yes; then + HAVE_UNISTD_H=1 + else + HAVE_UNISTD_H=0 + fi + AC_SUBST([HAVE_UNISTD_H]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + + dnl Determine WINDOWS_64_BIT_OFF_T. + AC_REQUIRE([gl_TYPE_OFF_T]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +/* Some systems declare various items in the wrong headers. */ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include <fcntl.h> +# include <stdio.h> +# include <stdlib.h> +# if defined _WIN32 && ! defined __CYGWIN__ +# include <io.h> +# endif +#endif + ]], [access chdir chown copy_file_range dup dup2 dup3 environ euidaccess + execl execle execlp execv execve execvp execvpe + faccessat fchdir + fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize + getentropy getgroups gethostname getlogin getlogin_r getpagesize getpass + getusershell setusershell endusershell + group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite + readlink readlinkat rmdir sethostname sleep symlink symlinkat + truncate ttyname_r unlink unlinkat usleep]) + + AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS_ONCE([execvpe]) + if test $ac_cv_have_decl_execvpe = no; then + HAVE_DECL_EXECVPE=0 + fi +]) + +# gl_UNISTD_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_UNISTD_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_UNISTD_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCESS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHOWN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CLOSE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPY_FILE_RANGE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP2]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP3]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ENVIRON]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EUIDACCESS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECV]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FACCESSAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHOWNAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDATASYNC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSYNC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTRUNCATE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCWD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDOMAINNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDTABLESIZE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETENTROPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETGROUPS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETHOSTNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETOPT_POSIX]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPAGESIZE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPASS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPASS_GNU]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUSERSHELL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GROUP_MEMBER]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISATTY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHOWN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINKAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSEEK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE2]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PREAD]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PWRITE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READ]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINKAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RMDIR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETHOSTNAME]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SLEEP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINKAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNCATE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TTYNAME_R]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_GETOPT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_NONBLOCKING]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_SIGPIPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINKAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_USLEEP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WRITE]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ACCESS], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHDIR], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CLOSE], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP2], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECL], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLE], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLP], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECV], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVE], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVP], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVPE], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETCWD], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETPID], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ISATTY], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_LSEEK], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_READ], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_RMDIR], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_SWAB], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UNLINK], [1]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_WRITE], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) +]) + +AC_DEFUN([gl_UNISTD_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN]) + HAVE_COPY_FILE_RANGE=1; AC_SUBST([HAVE_COPY_FILE_RANGE]) + HAVE_DUP3=1; AC_SUBST([HAVE_DUP3]) + HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) + HAVE_EXECVPE=1; AC_SUBST([HAVE_EXECVPE]) + HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT]) + HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR]) + HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT]) + HAVE_FDATASYNC=1; AC_SUBST([HAVE_FDATASYNC]) + HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC]) + HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) + HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE]) + HAVE_GETENTROPY=1; AC_SUBST([HAVE_GETENTROPY]) + HAVE_GETGROUPS=1; AC_SUBST([HAVE_GETGROUPS]) + HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) + HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN]) + HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) + HAVE_GETPASS=1; AC_SUBST([HAVE_GETPASS]) + HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER]) + HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN]) + HAVE_LINK=1; AC_SUBST([HAVE_LINK]) + HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT]) + HAVE_PIPE=1; AC_SUBST([HAVE_PIPE]) + HAVE_PIPE2=1; AC_SUBST([HAVE_PIPE2]) + HAVE_PREAD=1; AC_SUBST([HAVE_PREAD]) + HAVE_PWRITE=1; AC_SUBST([HAVE_PWRITE]) + HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) + HAVE_READLINKAT=1; AC_SUBST([HAVE_READLINKAT]) + HAVE_SETHOSTNAME=1; AC_SUBST([HAVE_SETHOSTNAME]) + HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) + HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK]) + HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT]) + HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT]) + HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP]) + HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) + HAVE_DECL_EXECVPE=1; AC_SUBST([HAVE_DECL_EXECVPE]) + HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) + HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC]) + HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) + HAVE_DECL_GETLOGIN=1; AC_SUBST([HAVE_DECL_GETLOGIN]) + HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) + HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE]) + HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL]) + HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME]) + HAVE_DECL_TRUNCATE=1; AC_SUBST([HAVE_DECL_TRUNCATE]) + HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R]) + HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) + HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) + REPLACE_ACCESS=0; AC_SUBST([REPLACE_ACCESS]) + REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) + REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) + REPLACE_COPY_FILE_RANGE=0; AC_SUBST([REPLACE_COPY_FILE_RANGE]) + REPLACE_DUP=0; AC_SUBST([REPLACE_DUP]) + REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2]) + REPLACE_DUP3=0; AC_SUBST([REPLACE_DUP3]) + REPLACE_EXECL=0; AC_SUBST([REPLACE_EXECL]) + REPLACE_EXECLE=0; AC_SUBST([REPLACE_EXECLE]) + REPLACE_EXECLP=0; AC_SUBST([REPLACE_EXECLP]) + REPLACE_EXECV=0; AC_SUBST([REPLACE_EXECV]) + REPLACE_EXECVE=0; AC_SUBST([REPLACE_EXECVE]) + REPLACE_EXECVP=0; AC_SUBST([REPLACE_EXECVP]) + REPLACE_EXECVPE=0; AC_SUBST([REPLACE_EXECVPE]) + REPLACE_FACCESSAT=0; AC_SUBST([REPLACE_FACCESSAT]) + REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT]) + REPLACE_FDATASYNC=0; AC_SUBST([REPLACE_FDATASYNC]) + REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE]) + REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) + REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME]) + REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE]) + REPLACE_GETENTROPY=0; AC_SUBST([REPLACE_GETENTROPY]) + REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R]) + REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS]) + REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) + REPLACE_GETPASS=0; AC_SUBST([REPLACE_GETPASS]) + REPLACE_GETPASS_FOR_GETPASS_GNU=0; AC_SUBST([REPLACE_GETPASS_FOR_GETPASS_GNU]) + REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY]) + REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) + REPLACE_LINK=0; AC_SUBST([REPLACE_LINK]) + REPLACE_LINKAT=0; AC_SUBST([REPLACE_LINKAT]) + REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) + REPLACE_PIPE2=0; AC_SUBST([REPLACE_PIPE2]) + REPLACE_PREAD=0; AC_SUBST([REPLACE_PREAD]) + REPLACE_PWRITE=0; AC_SUBST([REPLACE_PWRITE]) + REPLACE_READ=0; AC_SUBST([REPLACE_READ]) + REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK]) + REPLACE_READLINKAT=0; AC_SUBST([REPLACE_READLINKAT]) + REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR]) + REPLACE_SETHOSTNAME=0; AC_SUBST([REPLACE_SETHOSTNAME]) + REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP]) + REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK]) + REPLACE_SYMLINKAT=0; AC_SUBST([REPLACE_SYMLINKAT]) + REPLACE_TRUNCATE=0; AC_SUBST([REPLACE_TRUNCATE]) + REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R]) + REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK]) + REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT]) + REPLACE_USLEEP=0; AC_SUBST([REPLACE_USLEEP]) + REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE]) + UNISTD_H_HAVE_SYS_RANDOM_H=0; AC_SUBST([UNISTD_H_HAVE_SYS_RANDOM_H]) + UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H]) + UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; + AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) +]) diff --git a/gl/m4/unlink.m4 b/gl/m4/unlink.m4 new file mode 100644 index 0000000..1fecaac --- /dev/null +++ b/gl/m4/unlink.m4 @@ -0,0 +1,137 @@ +# unlink.m4 serial 16 +dnl Copyright (C) 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_UNLINK], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + + dnl Detect FreeBSD 7.2, AIX 7.1, Solaris 9 bug. + AC_CACHE_CHECK([whether unlink honors trailing slashes], + [gl_cv_func_unlink_honors_slashes], + [touch conftest.file + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.file conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#if HAVE_UNISTD_H + # include <unistd.h> + #else /* on Windows with MSVC */ + # include <io.h> + #endif + #include <errno.h> + ]GL_MDA_DEFINES], + [[int result = 0; + if (!unlink ("conftest.file/")) + result |= 1; + else if (errno != ENOTDIR) + result |= 2; +#if HAVE_LSTAT + if (!unlink ("conftest.lnk/")) + result |= 4; + else if (errno != ENOTDIR) + result |= 8; +#endif + return result; + ]])], + [gl_cv_func_unlink_honors_slashes=yes], + [gl_cv_func_unlink_honors_slashes=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_unlink_honors_slashes="guessing yes" ;; + # Guess yes on systems that emulate the Linux system calls. + midipix*) gl_cv_func_unlink_honors_slashes="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_unlink_honors_slashes="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_unlink_honors_slashes="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_unlink_honors_slashes="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.file conftest.lnk]) + case "$gl_cv_func_unlink_honors_slashes" in + *no) + REPLACE_UNLINK=1 + ;; + esac + + dnl Detect Mac OS X 10.5.6 bug: On read-write HFS mounts, unlink("..") or + dnl unlink("../..") succeeds without doing anything. + AC_CACHE_CHECK([whether unlink of a parent directory fails as it should], + [gl_cv_func_unlink_parent_fails], + [case "$host_os" in + darwin*) + dnl Try to unlink a subdirectory of /tmp, because /tmp is usually on a + dnl HFS mount on Mac OS X. Use a subdirectory, owned by the current + dnl user, because otherwise unlink() may fail due to permissions + dnl reasons, and because when running as root we don't want to risk + dnl destroying the entire /tmp. + if { + # Use the mktemp program if available. If not available, hide the error + # message. + tmp=`(umask 077 && mktemp -d /tmp/gtXXXXXX) 2>/dev/null` && + test -n "$tmp" && test -d "$tmp" + } || + { + # Use a simple mkdir command. It is guaranteed to fail if the directory + # already exists. $RANDOM is bash specific and expands to empty in shells + # other than bash, ksh and zsh. Its use does not increase security; + # rather, it minimizes the probability of failure in a very cluttered /tmp + # directory. + tmp=/tmp/gt$$-$RANDOM + (umask 077 && mkdir "$tmp") + }; then + mkdir "$tmp/subdir" + GL_SUBDIR_FOR_UNLINK="$tmp/subdir" + export GL_SUBDIR_FOR_UNLINK + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <stdlib.h> + #if HAVE_UNISTD_H + # include <unistd.h> + #else /* on Windows with MSVC */ + # include <direct.h> + # include <io.h> + #endif + ]GL_MDA_DEFINES[ + int main () + { + int result = 0; + if (chdir (getenv ("GL_SUBDIR_FOR_UNLINK")) != 0) + result |= 1; + else if (unlink ("..") == 0) + result |= 2; + return result; + } + ]])], + [gl_cv_func_unlink_parent_fails=yes], + [gl_cv_func_unlink_parent_fails=no], + [# If we don't know, obey --enable-cross-guesses. + gl_cv_func_unlink_parent_fails="$gl_cross_guess_normal" + ]) + unset GL_SUBDIR_FOR_UNLINK + rm -rf "$tmp" + else + gl_cv_func_unlink_parent_fails="guessing no" + fi + ;; + *) + gl_cv_func_unlink_parent_fails="guessing yes" + ;; + esac + ]) + case "$gl_cv_func_unlink_parent_fails" in + *no) + REPLACE_UNLINK=1 + AC_DEFINE([UNLINK_PARENT_BUG], [1], + [Define to 1 if unlink() on a parent directory may succeed]) + ;; + esac +]) diff --git a/gl/m4/unlinkat.m4 b/gl/m4/unlinkat.m4 new file mode 100644 index 0000000..55cdb2a --- /dev/null +++ b/gl/m4/unlinkat.m4 @@ -0,0 +1,34 @@ +# unlinkat.m4 serial 2 +dnl Copyright (C) 2004-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Jim Meyering. + +AC_DEFUN([gl_FUNC_UNLINKAT], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([unlinkat]) + AC_REQUIRE([gl_FUNC_UNLINK]) + AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) + if test $ac_cv_func_unlinkat = no; then + HAVE_UNLINKAT=0 + else + case "$gl_cv_func_lstat_dereferences_slashed_symlink" in + *no) + # Solaris 9 has *at functions, but uniformly mishandles trailing + # slash in all of them. + REPLACE_UNLINKAT=1 + ;; + *) + # GNU/Hurd has unlinkat, but it has the same bug as unlink. + # Darwin has unlinkat, but it has the same UNLINK_PARENT_BUG. + if test $REPLACE_UNLINK = 1; then + REPLACE_UNLINKAT=1 + fi + ;; + esac + fi +]) diff --git a/gl/m4/utime.m4 b/gl/m4/utime.m4 new file mode 100644 index 0000000..4c0443a --- /dev/null +++ b/gl/m4/utime.m4 @@ -0,0 +1,76 @@ +# utime.m4 serial 4 +dnl Copyright (C) 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_UTIME], +[ + AC_REQUIRE([gl_UTIME_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([lstat]) + case "$host_os" in + mingw*) + dnl On this platform, the original utime() or _utime() produces + dnl timestamps that are affected by the time zone. + dnl Use the function name 'rpl_utime' always, in order to avoid a + dnl possible conflict with the function name 'utime' from oldnames.lib + dnl (MSVC) or liboldnames.a (mingw). + REPLACE_UTIME=1 + ;; + *) + AC_CHECK_FUNCS([utime]) + if test $ac_cv_func_utime = no; then + HAVE_UTIME=0 + else + dnl On macOS 10.13, utime("link-to-file/", NULL) mistakenly succeeds. + AC_CACHE_CHECK([whether utime handles trailing slashes on files], + [gl_cv_func_utime_file_slash], + [touch conftest.tmp + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.tmp conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + #include <utime.h> + ]], + [[int result = 0; + if (!utime ("conftest.tmp/", NULL)) + result |= 1; + #if HAVE_LSTAT + if (!utime ("conftest.lnk/", NULL)) + result |= 2; + #endif + return result; + ]])], + [gl_cv_func_utime_file_slash=yes], + [gl_cv_func_utime_file_slash=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_utime_file_slash="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_utime_file_slash="guessing yes" ;; + # Guess no on macOS. + darwin*) gl_cv_func_utime_file_slash="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_utime_file_slash="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.tmp conftest.lnk + ]) + case $gl_cv_func_stat_file_slash in + *no) + REPLACE_UTIME=1 + AC_DEFINE([REPLACE_FUNC_UTIME_FILE], [1], + [Define to 1 if utime needs help when passed a file name with a trailing slash]) + ;; + esac + fi + ;; + esac +]) + +# Prerequisites of lib/utime.c. +AC_DEFUN([gl_PREREQ_UTIME], [:]) diff --git a/gl/m4/utime_h.m4 b/gl/m4/utime_h.m4 new file mode 100644 index 0000000..6b6403e --- /dev/null +++ b/gl/m4/utime_h.m4 @@ -0,0 +1,63 @@ +# utime_h.m4 serial 8 +dnl Copyright (C) 2017-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN_ONCE([gl_UTIME_H], +[ + AC_REQUIRE([gl_UTIME_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])]) + AC_CHECK_HEADERS_ONCE([utime.h]) + gl_CHECK_NEXT_HEADERS([utime.h]) + + if test $ac_cv_header_utime_h = yes; then + HAVE_UTIME_H=1 + else + HAVE_UTIME_H=0 + fi + AC_SUBST([HAVE_UTIME_H]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <utime.h> + ]], + [utime]) +]) + +# gl_UTIME_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_UTIME_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_UTIME_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_UTIME_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_UTIME_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UTIME]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UTIME], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_UTIME_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_UTIME_H_DEFAULTS]) +]) + +AC_DEFUN([gl_UTIME_H_DEFAULTS], +[ + dnl Assume POSIX behavior unless another module says otherwise. + HAVE_UTIME=1; AC_SUBST([HAVE_UTIME]) + REPLACE_UTIME=0; AC_SUBST([REPLACE_UTIME]) +]) diff --git a/gl/m4/utimens.m4 b/gl/m4/utimens.m4 new file mode 100644 index 0000000..5f86061 --- /dev/null +++ b/gl/m4/utimens.m4 @@ -0,0 +1,56 @@ +dnl Copyright (C) 2003-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl serial 15 + +AC_DEFUN([gl_UTIMENS], +[ + dnl Prerequisites of lib/utimens.c. + AC_REQUIRE([gl_FUNC_UTIMES]) + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + gl_CHECK_FUNCS_ANDROID([futimes], [[#include <sys/time.h>]]) + gl_CHECK_FUNCS_ANDROID([futimesat], [[#include <sys/time.h>]]) + gl_CHECK_FUNCS_ANDROID([lutimes], [[#include <sys/time.h>]]) + gl_CHECK_FUNCS_ANDROID([futimens], [[#include <sys/stat.h>]]) + gl_CHECK_FUNCS_ANDROID([utimensat], [[#include <sys/stat.h>]]) + + if test $ac_cv_func_futimens = no && test $ac_cv_func_futimesat = yes; then + dnl FreeBSD 8.0-rc2 mishandles futimesat(fd,NULL,time). It is not + dnl standardized, but Solaris implemented it first and uses it as + dnl its only means to set fd time. + AC_CACHE_CHECK([whether futimesat handles NULL file], + [gl_cv_func_futimesat_works], + [touch conftest.file + AC_RUN_IFELSE([AC_LANG_PROGRAM([[ +#include <stddef.h> +#include <sys/times.h> +#include <fcntl.h> +]GL_MDA_DEFINES], + [[int fd = open ("conftest.file", O_RDWR); + if (fd < 0) return 1; + if (futimesat (fd, NULL, NULL)) return 2; + ]])], + [gl_cv_func_futimesat_works=yes], + [gl_cv_func_futimesat_works=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_futimesat_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_futimesat_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_futimesat_works="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.file]) + case "$gl_cv_func_futimesat_works" in + *yes) ;; + *) + AC_DEFINE([FUTIMESAT_NULL_BUG], [1], + [Define to 1 if futimesat mishandles a NULL file name.]) + ;; + esac + fi +]) diff --git a/gl/m4/utimes.m4 b/gl/m4/utimes.m4 new file mode 100644 index 0000000..73b9a2d --- /dev/null +++ b/gl/m4/utimes.m4 @@ -0,0 +1,161 @@ +# Detect some bugs in glibc's implementation of utimes. +# serial 8 + +dnl Copyright (C) 2003-2005, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# See if we need to work around bugs in glibc's implementation of +# utimes from 2003-07-12 to 2003-09-17. +# First, there was a bug that would make utimes set mtime +# and atime to zero (1970-01-01) unconditionally. +# Then, there was code to round rather than truncate. +# Then, there was an implementation (sparc64, Linux-2.4.28, glibc-2.3.3) +# that didn't honor the NULL-means-set-to-current-time semantics. +# Finally, there was also a version of utimes that failed on read-only +# files, while utime worked fine (linux-2.2.20, glibc-2.2.5). +# +# From Jim Meyering, with suggestions from Paul Eggert. + +AC_DEFUN([gl_FUNC_UTIMES], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether the utimes function works], + [gl_cv_func_working_utimes], + [AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <sys/time.h> +#include <time.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <utime.h> +#include <errno.h> +]GL_MDA_DEFINES[ + +static int +inorder (time_t a, time_t b, time_t c) +{ + return a <= b && b <= c; +} + +int +main () +{ + int result = 0; + char const *file = "conftest.utimes"; + /* On OS/2, file timestamps must be on or after 1980 in local time, + with an even number of seconds. */ + static struct timeval timeval[2] = {{315620000 + 10, 10}, + {315620000 + 1000000, 999998}}; + + /* Test whether utimes() essentially works. */ + { + struct stat sbuf; + FILE *f = fopen (file, "w"); + if (f == NULL) + result |= 1; + else if (fclose (f) != 0) + result |= 1; + else if (utimes (file, timeval) != 0) + result |= 2; + else if (lstat (file, &sbuf) != 0) + result |= 1; + else if (!(sbuf.st_atime == timeval[0].tv_sec + && sbuf.st_mtime == timeval[1].tv_sec)) + result |= 4; + if (unlink (file) != 0) + result |= 1; + } + + /* Test whether utimes() with a NULL argument sets the file's timestamp + to the current time. Use 'fstat' as well as 'time' to + determine the "current" time, to accommodate NFS file systems + if there is a time skew between the host and the NFS server. */ + { + int fd = open (file, O_WRONLY|O_CREAT, 0644); + if (fd < 0) + result |= 1; + else + { + time_t t0, t2; + struct stat st0, st1, st2; + if (time (&t0) == (time_t) -1) + result |= 1; + else if (fstat (fd, &st0) != 0) + result |= 1; + else if (utimes (file, timeval) != 0 + && (errno != EACCES + /* OS/2 kLIBC utimes fails on opened files. */ + || close (fd) != 0 + || utimes (file, timeval) != 0 + || (fd = open (file, O_WRONLY)) < 0)) + result |= 2; + else if (utimes (file, NULL) != 0 + && (errno != EACCES + /* OS/2 kLIBC utimes fails on opened files. */ + || close (fd) != 0 + || utimes (file, NULL) != 0 + || (fd = open (file, O_WRONLY)) < 0)) + result |= 8; + else if (fstat (fd, &st1) != 0) + result |= 1; + else if (write (fd, "\n", 1) != 1) + result |= 1; + else if (fstat (fd, &st2) != 0) + result |= 1; + else if (time (&t2) == (time_t) -1) + result |= 1; + else + { + int m_ok_POSIX = inorder (t0, st1.st_mtime, t2); + int m_ok_NFS = inorder (st0.st_mtime, st1.st_mtime, st2.st_mtime); + if (! (st1.st_atime == st1.st_mtime)) + result |= 16; + if (! (m_ok_POSIX || m_ok_NFS)) + result |= 32; + } + if (close (fd) != 0) + result |= 1; + } + if (unlink (file) != 0) + result |= 1; + } + + /* Test whether utimes() with a NULL argument works on read-only files. */ + { + int fd = open (file, O_WRONLY|O_CREAT, 0444); + if (fd < 0) + result |= 1; + else if (close (fd) != 0) + result |= 1; + else if (utimes (file, NULL) != 0) + result |= 64; + if (unlink (file) != 0) + result |= 1; + } + + return result; +} + ]])], + [gl_cv_func_working_utimes=yes], + [gl_cv_func_working_utimes=no], + [case "$host_os" in + # Guess yes on musl systems. + *-musl*) gl_cv_func_working_utimes="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_working_utimes="guessing no" ;; + *) gl_cv_func_working_utimes="$gl_cross_guess_normal" ;; + esac + ]) + ]) + + case "$gl_cv_func_working_utimes" in + *yes) + AC_DEFINE([HAVE_WORKING_UTIMES], [1], [Define if utimes works properly.]) + ;; + esac +]) diff --git a/gl/m4/vasnprintf.m4 b/gl/m4/vasnprintf.m4 new file mode 100644 index 0000000..df87b9e --- /dev/null +++ b/gl/m4/vasnprintf.m4 @@ -0,0 +1,462 @@ +# vasnprintf.m4 serial 50 +dnl Copyright (C) 2002-2004, 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_VASNPRINTF], +[ + AC_CHECK_FUNCS_ONCE([vasnprintf]) + if test $ac_cv_func_vasnprintf = no; then + gl_REPLACE_VASNPRINTF + fi +]) + +AC_DEFUN([gl_REPLACE_VASNPRINTF], +[ + AC_CHECK_FUNCS_ONCE([vasnprintf]) + AC_LIBOBJ([vasnprintf]) + AC_LIBOBJ([printf-args]) + AC_LIBOBJ([printf-parse]) + AC_LIBOBJ([asnprintf]) + if test $ac_cv_func_vasnprintf = yes; then + AC_DEFINE([REPLACE_VASNPRINTF], [1], + [Define if vasnprintf exists but is overridden by gnulib.]) + fi + gl_PREREQ_PRINTF_ARGS + gl_PREREQ_PRINTF_PARSE + gl_PREREQ_VASNPRINTF + gl_PREREQ_ASNPRINTF +]) + +AC_DEFUN([gl_FUNC_VASNWPRINTF], +[ + AC_LIBOBJ([printf-args]) + gl_PREREQ_PRINTF_ARGS + gl_PREREQ_PRINTF_PARSE + gl_PREREQ_VASNWPRINTF + gl_PREREQ_ASNPRINTF +]) + +# Prerequisites of lib/printf-args.h, lib/printf-args.c. +AC_DEFUN([gl_PREREQ_PRINTF_ARGS], +[ + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) +]) + +# Prerequisites of lib/printf-parse.h, lib/printf-parse.c. +# Prerequisites of lib/wprintf-parse.h, lib/wprintf-parse.c. +AC_DEFUN([gl_PREREQ_PRINTF_PARSE], +[ + AC_REQUIRE([gl_FEATURES_H]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_REQUIRE([AC_TYPE_SIZE_T]) + AC_CHECK_TYPE([ptrdiff_t], , + [AC_DEFINE([ptrdiff_t], [long], + [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) + ]) + AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) +]) + +# Prerequisites of lib/vasnprintf.c if !WIDE_CHAR_VERSION. +AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], +[ + AC_CHECK_FUNCS([snprintf strnlen wcrtomb]) + dnl Use the _snprintf function only if it is declared (because on NetBSD it + dnl is defined as a weak alias of snprintf; we prefer to use the latter). + AC_CHECK_DECLS([_snprintf], , , [[#include <stdio.h>]]) + dnl We can avoid a lot of code by assuming that snprintf's return value + dnl conforms to ISO C99. So check that. + AC_REQUIRE([gl_SNPRINTF_RETVAL_C99]) + case "$gl_cv_func_snprintf_retval_c99" in + *yes) + AC_DEFINE([HAVE_SNPRINTF_RETVAL_C99], [1], + [Define if the return value of the snprintf function is the number of + of bytes (excluding the terminating NUL) that would have been produced + if the buffer had been large enough.]) + ;; + esac + dnl Additionally, the use of %n can be eliminated by assuming that snprintf + dnl always produces NUL-terminated strings (no truncation). + AC_REQUIRE([gl_SNPRINTF_TRUNCATION_C99]) + case "$gl_cv_func_snprintf_truncation_c99" in + *yes) + AC_DEFINE([HAVE_SNPRINTF_TRUNCATION_C99], [1], + [Define if the string produced by the snprintf function is always NUL + terminated.]) + ;; + esac + gl_PREREQ_VASNXPRINTF +]) + +# Prerequisites of lib/vasnwprintf.c. +AC_DEFUN_ONCE([gl_PREREQ_VASNWPRINTF], +[ + AC_CHECK_FUNCS_ONCE([swprintf wcsnlen mbrtowc]) + AC_CHECK_DECLS([_snwprintf], , , [[#include <stdio.h>]]) + AC_CHECK_DECLS([wcsnlen], , , [[#include <wchar.h>]]) + gl_SWPRINTF_WORKS + case "$gl_cv_func_swprintf_works" in + *yes) + AC_DEFINE([HAVE_WORKING_SWPRINTF], [1], + [Define if the swprintf function works correctly when it produces output + that contains null wide characters.]) + ;; + esac + gl_MBRTOWC_C_LOCALE + case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in + *yes) + AC_CACHE_CHECK([whether swprintf in the C locale is free of encoding errors], + [gl_cv_func_swprintf_C_locale_sans_EILSEQ], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#ifndef __USE_MINGW_ANSI_STDIO +# define __USE_MINGW_ANSI_STDIO 1 +#endif +#include <stdio.h> +#include <wchar.h> +int main() +{ + int result = 0; + { /* This test fails on glibc 2.35, musl libc 1.2.4, FreeBSD 13.2, NetBSD 9.3, + OpenBSD 7.2, Cygwin 2.9.0. + Reported at <https://www.openwall.com/lists/musl/2023/06/12/2>. */ + wchar_t buf[12]; + int ret = swprintf (buf, 12, L"%c", '\377'); + if (ret < 0) + result |= 1; + } + return result; +}]])], + [gl_cv_func_swprintf_C_locale_sans_EILSEQ=yes], + [gl_cv_func_swprintf_C_locale_sans_EILSEQ=no], + [case "$host_os" in + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_func_swprintf_C_locale_sans_EILSEQ="guessing yes";; + # Guess no on musl systems. + *-musl* | midipix*) gl_cv_func_swprintf_C_locale_sans_EILSEQ="guessing no";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_swprintf_C_locale_sans_EILSEQ="$gl_cross_guess_normal";; + esac + ]) + ]) + ;; + esac + if case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in + *yes) false ;; + *) true ;; + esac \ + || case "$gl_cv_func_swprintf_C_locale_sans_EILSEQ" in + *yes) false ;; + *) true ;; + esac; then + AC_DEFINE([NEED_WPRINTF_DIRECTIVE_C], [1], + [Define if the vasnwprintf implementation needs special code for + the 'c' directive.]) + fi + gl_SWPRINTF_DIRECTIVE_LA + case "$gl_cv_func_swprintf_directive_la" in + *yes) ;; + *) + AC_DEFINE([NEED_WPRINTF_DIRECTIVE_LA], [1], + [Define if the vasnwprintf implementation needs special code for + the 'a' directive with 'long double' arguments.]) + ;; + esac + gl_SWPRINTF_DIRECTIVE_LC + case "$gl_cv_func_swprintf_directive_lc" in + *yes) ;; + *) + AC_DEFINE([NEED_WPRINTF_DIRECTIVE_LC], [1], + [Define if the vasnwprintf implementation needs special code for + the 'lc' directive.]) + ;; + esac + gl_MUSL_LIBC + gl_PREREQ_VASNXPRINTF +]) + +# Common prerequisites of lib/vasnprintf.c and lib/vasnwprintf.c. +AC_DEFUN_ONCE([gl_PREREQ_VASNXPRINTF], +[ + AC_REQUIRE([AC_FUNC_ALLOCA]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_CHECK_FUNCS([wcslen]) + dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization + dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE. + AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION]) +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting 'long double' +# arguments. +AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) + case "$gl_cv_func_printf_long_double" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double' +# arguments. +AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_INFINITE]) + case "$gl_cv_func_printf_infinite" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + infinite 'double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double' +# arguments. +AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE], +[ + AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE]) + dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if + dnl NEED_PRINTF_LONG_DOUBLE is already set. + AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE]) + case "$gl_cv_func_printf_long_double" in + *yes) + case "$gl_cv_func_printf_infinite_long_double" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + infinite 'long double' arguments.]) + ;; + esac + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_A]) + case "$gl_cv_func_printf_directive_a" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], [1], + [Define if the vasnprintf implementation needs special code for + the 'a' and 'A' directives.]) + gl_CHECK_FUNCS_ANDROID([nl_langinfo], [[#include <langinfo.h>]]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'b' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_B], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_B]) + case "$gl_cv_func_printf_directive_b" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_B], [1], + [Define if the vasnprintf implementation needs special code for + the 'b' directive.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_F]) + case "$gl_cv_func_printf_directive_f" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], [1], + [Define if the vasnprintf implementation needs special code for + the 'F' directive.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'ls' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LS], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS]) + case "$gl_cv_func_printf_directive_ls" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_LS], [1], + [Define if the vasnprintf implementation needs special code for + the 'ls' directive.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'lc' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LC], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_LC]) + case "$gl_cv_func_printf_directive_lc" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_LC], [1], + [Define if the vasnprintf implementation needs special code for + the 'lc' directive.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the ' flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING], +[ + AC_REQUIRE([gl_PRINTF_FLAG_GROUPING]) + case "$gl_cv_func_printf_flag_grouping" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], [1], + [Define if the vasnprintf implementation needs special code for the + ' flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST], +[ + AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST]) + case "$gl_cv_func_printf_flag_leftadjust" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], [1], + [Define if the vasnprintf implementation needs special code for the + '-' flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag. +AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO], +[ + AC_REQUIRE([gl_PRINTF_FLAG_ZERO]) + case "$gl_cv_func_printf_flag_zero" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_FLAG_ZERO], [1], + [Define if the vasnprintf implementation needs special code for the + 0 flag.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting large precisions. +AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION], +[ + AC_REQUIRE([gl_PRINTF_PRECISION]) + case "$gl_cv_func_printf_precision" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], [1], + [Define if the vasnprintf implementation needs special code for + supporting large precisions without arbitrary bounds.]) + AC_DEFINE([NEED_PRINTF_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + 'double' arguments.]) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory +# conditions. +AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM], +[ + AC_REQUIRE([gl_PRINTF_ENOMEM]) + case "$gl_cv_func_printf_enomem" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_ENOMEM], [1], + [Define if the vasnprintf implementation needs special code for + surviving out-of-memory conditions.]) + AC_DEFINE([NEED_PRINTF_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + 'double' arguments.]) + AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], + [Define if the vasnprintf implementation needs special code for + 'long double' arguments.]) + ;; + esac +]) + +# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance. +AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS], +[ + AC_REQUIRE([gl_PREREQ_VASNPRINTF]) + gl_PREREQ_VASNPRINTF_LONG_DOUBLE + gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE + gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE + gl_PREREQ_VASNPRINTF_DIRECTIVE_A + gl_PREREQ_VASNPRINTF_DIRECTIVE_B + gl_PREREQ_VASNPRINTF_DIRECTIVE_F + gl_PREREQ_VASNPRINTF_DIRECTIVE_LS + gl_PREREQ_VASNPRINTF_DIRECTIVE_LC + gl_PREREQ_VASNPRINTF_FLAG_GROUPING + gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST + gl_PREREQ_VASNPRINTF_FLAG_ZERO + gl_PREREQ_VASNPRINTF_PRECISION + gl_PREREQ_VASNPRINTF_ENOMEM +]) + +# Extra prerequisites of lib/vasnprintf.c for supporting the 'B' directive. +AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_UPPERCASE_B], +[ + AC_REQUIRE([gl_PRINTF_DIRECTIVE_UPPERCASE_B]) + case "$gl_cv_func_printf_directive_uppercase_b" in + *yes) + ;; + *) + AC_DEFINE([NEED_PRINTF_DIRECTIVE_UPPERCASE_B], [1], + [Define if the vasnprintf implementation needs special code for + the 'B' directive.]) + ;; + esac +]) + +# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance +# and GNU compatibility. +AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_GNU_EXTRAS], +[ + gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS + AC_DEFINE([SUPPORT_GNU_PRINTF_DIRECTIVES], [1], + [Define if the vasnprintf implementation should support GNU compatible + printf directives.]) + gl_PREREQ_VASNPRINTF_DIRECTIVE_UPPERCASE_B +]) + +# Prerequisites of lib/asnprintf.c. +# Prerequisites of lib/asnwprintf.c. +AC_DEFUN([gl_PREREQ_ASNPRINTF], +[ +]) diff --git a/gl/m4/vasprintf.m4 b/gl/m4/vasprintf.m4 new file mode 100644 index 0000000..6e6156a --- /dev/null +++ b/gl/m4/vasprintf.m4 @@ -0,0 +1,46 @@ +# vasprintf.m4 serial 6 +dnl Copyright (C) 2002-2003, 2006-2007, 2009-2023 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_VASPRINTF], +[ + AC_CHECK_FUNCS([vasprintf]) + if test $ac_cv_func_vasprintf = no; then + gl_REPLACE_VASPRINTF + fi +]) + +AC_DEFUN([gl_REPLACE_VASPRINTF], +[ + AC_LIBOBJ([vasprintf]) + AC_LIBOBJ([asprintf]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + if test $ac_cv_func_vasprintf = yes; then + REPLACE_VASPRINTF=1 + else + HAVE_VASPRINTF=0 + fi + gl_PREREQ_VASPRINTF_H + gl_PREREQ_VASPRINTF + gl_PREREQ_ASPRINTF +]) + +# Prerequisites of the vasprintf portion of lib/stdio.h. +AC_DEFUN([gl_PREREQ_VASPRINTF_H], +[ + dnl Persuade glibc <stdio.h> to declare asprintf() and vasprintf(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) +]) + +# Prerequisites of lib/vasprintf.c. +AC_DEFUN([gl_PREREQ_VASPRINTF], +[ +]) + +# Prerequisites of lib/asprintf.c. +AC_DEFUN([gl_PREREQ_ASPRINTF], +[ +]) diff --git a/gl/m4/visibility.m4 b/gl/m4/visibility.m4 new file mode 100644 index 0000000..f0468e8 --- /dev/null +++ b/gl/m4/visibility.m4 @@ -0,0 +1,82 @@ +# visibility.m4 serial 8 +dnl Copyright (C) 2005, 2008, 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +dnl Tests whether the compiler supports the command-line option +dnl -fvisibility=hidden and the function and variable attributes +dnl __attribute__((__visibility__("hidden"))) and +dnl __attribute__((__visibility__("default"))). +dnl Does *not* test for __visibility__("protected") - which has tricky +dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on +dnl Mac OS X. +dnl Does *not* test for __visibility__("internal") - which has processor +dnl dependent semantics. +dnl Does *not* test for #pragma GCC visibility push(hidden) - which is +dnl "really only recommended for legacy code". +dnl Set the variable CFLAG_VISIBILITY. +dnl Defines and sets the variable HAVE_VISIBILITY. + +AC_DEFUN([gl_VISIBILITY], +[ + AC_REQUIRE([AC_PROG_CC]) + CFLAG_VISIBILITY= + HAVE_VISIBILITY=0 + if test -n "$GCC"; then + dnl First, check whether -Werror can be added to the command line, or + dnl whether it leads to an error because of some other option that the + dnl user has put into $CC $CFLAGS $CPPFLAGS. + AC_CACHE_CHECK([whether the -Werror option is usable], + [gl_cv_cc_vis_werror], + [gl_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[]], [[]])], + [gl_cv_cc_vis_werror=yes], + [gl_cv_cc_vis_werror=no]) + CFLAGS="$gl_save_CFLAGS" + ]) + dnl Now check whether visibility declarations are supported. + AC_CACHE_CHECK([for simple visibility declarations], + [gl_cv_cc_visibility], + [gl_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fvisibility=hidden" + dnl We use the option -Werror and a function dummyfunc, because on some + dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning + dnl "visibility attribute not supported in this configuration; ignored" + dnl at the first function definition in every compilation unit, and we + dnl don't want to use the option in this case. + if test $gl_cv_cc_vis_werror = yes; then + CFLAGS="$CFLAGS -Werror" + fi + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[extern __attribute__((__visibility__("hidden"))) int hiddenvar; + extern __attribute__((__visibility__("default"))) int exportedvar; + extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void); + extern __attribute__((__visibility__("default"))) int exportedfunc (void); + void dummyfunc (void); + int hiddenvar; + int exportedvar; + int hiddenfunc (void) { return 51; } + int exportedfunc (void) { return 1225736919; } + void dummyfunc (void) {} + ]], + [[]])], + [gl_cv_cc_visibility=yes], + [gl_cv_cc_visibility=no]) + CFLAGS="$gl_save_CFLAGS" + ]) + if test $gl_cv_cc_visibility = yes; then + CFLAG_VISIBILITY="-fvisibility=hidden" + HAVE_VISIBILITY=1 + fi + fi + AC_SUBST([CFLAG_VISIBILITY]) + AC_SUBST([HAVE_VISIBILITY]) + AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY], + [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.]) +]) diff --git a/gl/m4/vsnprintf.m4 b/gl/m4/vsnprintf.m4 new file mode 100644 index 0000000..7fbb11c --- /dev/null +++ b/gl/m4/vsnprintf.m4 @@ -0,0 +1,62 @@ +# vsnprintf.m4 serial 7 +dnl Copyright (C) 2002-2004, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Libintl 0.17 will replace vsnprintf only if it does not support %1$s, +dnl but defers to any gnulib vsnprintf replacements. Therefore, gnulib +dnl must guarantee that the decision for replacing vsnprintf is a superset +dnl of the reasons checked by libintl. +AC_DEFUN([gl_FUNC_VSNPRINTF], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + gl_cv_func_vsnprintf_usable=no + AC_CHECK_FUNCS([vsnprintf]) + if test $ac_cv_func_vsnprintf = yes; then + gl_SNPRINTF_SIZE1 + case "$gl_cv_func_snprintf_size1" in + *yes) + gl_SNPRINTF_RETVAL_C99 + case "$gl_cv_func_snprintf_retval_c99" in + *yes) + gl_PRINTF_POSITIONS + case "$gl_cv_func_printf_positions" in + *yes) + gl_cv_func_vsnprintf_usable=yes + ;; + esac + ;; + esac + ;; + esac + fi + if test $gl_cv_func_vsnprintf_usable = no; then + gl_REPLACE_VSNPRINTF + fi + AC_CHECK_DECLS_ONCE([vsnprintf]) + if test $ac_cv_have_decl_vsnprintf = no; then + HAVE_DECL_VSNPRINTF=0 + fi +]) + +AC_DEFUN([gl_REPLACE_VSNPRINTF], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_LIBOBJ([vsnprintf]) + if test $ac_cv_func_vsnprintf = yes; then + REPLACE_VSNPRINTF=1 + else + AC_CHECK_DECLS_ONCE([vsnprintf]) + if test $ac_cv_have_decl_vsnprintf = yes; then + dnl If the function is declared but does not appear to exist, it may be + dnl defined as an inline function. In order to avoid a conflict, we have + dnl to define rpl_vsnprintf, not vsnprintf. + REPLACE_VSNPRINTF=1 + fi + fi + gl_PREREQ_VSNPRINTF +]) + +# Prerequisites of lib/vsnprintf.c. +AC_DEFUN([gl_PREREQ_VSNPRINTF], [:]) diff --git a/gl/m4/warn-on-use.m4 b/gl/m4/warn-on-use.m4 new file mode 100644 index 0000000..10649c5 --- /dev/null +++ b/gl/m4/warn-on-use.m4 @@ -0,0 +1,62 @@ +# warn-on-use.m4 serial 10 +dnl Copyright (C) 2010-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# gl_WARN_ON_USE_PREPARE(INCLUDES, NAMES) +# --------------------------------------- +# If the module 'posixcheck' is in use: +# +# For each whitespace-separated element in the list of NAMES, define +# HAVE_RAW_DECL_name if the function has a declaration among INCLUDES +# even after being undefined as a macro. +# +# See warn-on-use.h for some hints on how to poison function names, as +# well as ideas on poisoning global variables and macros. NAMES may +# include global variables, but remember that only functions work with +# _GL_WARN_ON_USE. Typically, INCLUDES only needs to list a single +# header, but if the replacement header pulls in other headers because +# some systems declare functions in the wrong header, then INCLUDES +# should do likewise. +# +# It is generally safe to assume declarations for functions declared +# in the intersection of C89 and C11 (such as printf) without +# needing gl_WARN_ON_USE_PREPARE. +AC_DEFUN([gl_WARN_ON_USE_PREPARE], +[ + m4_ifdef([gl_POSIXCHECK], + [m4_foreach_w([gl_decl], [$2], + [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])), + [Define to 1 if ]m4_defn([gl_decl])[ is declared even after + undefining macros.])])dnl + for gl_func in m4_flatten([$2]); do + AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl + dnl As a workaround to implicit built-in function declarations in + dnl clang (e.g. strndup), reference ac_compile_for_check_decl instead + dnl of ac_compile. If, for whatever reason, the override of AC_PROG_CC + dnl in zzgnulib.m4 is inactive, use the original ac_compile. + ac_save_ac_compile="$ac_compile" + if test -n "$ac_compile_for_check_decl"; then + ac_compile="$ac_compile_for_check_decl" + fi + AC_CACHE_CHECK([whether $gl_func is declared without a macro], + [gl_Symbol], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1], +[[#undef $gl_func + (void) $gl_func;]])], + [AS_VAR_SET([gl_Symbol], [yes])], [AS_VAR_SET([gl_Symbol], [no])])]) + ac_compile="$ac_save_ac_compile" + AS_VAR_IF([gl_Symbol], [yes], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) + dnl Shortcut for an AC_CHECK_DECL invocation that may come later: + dnl If the raw declaration exists with the given includes, then + dnl AC_CHECK_DECL with its many includes would see it as well. + dnl So, set a cache variable to allow skipping any later + dnl AC_CHECK_DECL invocation for $gl_func. + eval "ac_cv_have_decl_$gl_func=yes" + ]) + AS_VAR_POPDEF([gl_Symbol])dnl + done + ]) +]) diff --git a/gl/m4/warnings.m4 b/gl/m4/warnings.m4 new file mode 100644 index 0000000..9433cb5 --- /dev/null +++ b/gl/m4/warnings.m4 @@ -0,0 +1,176 @@ +# warnings.m4 serial 19 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson + +AC_PREREQ([2.64]) + +# gl_COMPILER_OPTION_IF(OPTION, [IF-SUPPORTED], [IF-NOT-SUPPORTED], +# [PROGRAM = AC_LANG_PROGRAM()]) +# ----------------------------------------------------------------- +# Check if the compiler supports OPTION when compiling PROGRAM. +# +# The effects of this macro depend on the current language (_AC_LANG). +AC_DEFUN([gl_COMPILER_OPTION_IF], +[ +AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_[]_AC_LANG_ABBREV[]_$1])dnl +AS_VAR_PUSHDEF([gl_Flags], [_AC_LANG_PREFIX[]FLAGS])dnl +AS_LITERAL_IF([$1], + [m4_pushdef([gl_Positive], m4_bpatsubst([$1], [^-Wno-], [-W]))], + [gl_positive="$1" +case $gl_positive in + -Wno-*) gl_positive=-W`expr "X$gl_positive" : 'X-Wno-\(.*\)'` ;; +esac +m4_pushdef([gl_Positive], [$gl_positive])])dnl +AC_CACHE_CHECK([whether _AC_LANG compiler handles $1], [gl_Warn], [ + gl_save_compiler_FLAGS="$gl_Flags" + AS_VAR_APPEND(m4_defn([gl_Flags]), + [" $gl_unknown_warnings_are_errors ]m4_defn([gl_Positive])["]) + AC_LINK_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([[]])])], + [AS_VAR_SET([gl_Warn], [yes])], + [AS_VAR_SET([gl_Warn], [no])]) + gl_Flags="$gl_save_compiler_FLAGS" +]) +AS_VAR_IF(gl_Warn, [yes], [$2], [$3]) +m4_popdef([gl_Positive])dnl +AS_VAR_POPDEF([gl_Flags])dnl +AS_VAR_POPDEF([gl_Warn])dnl +]) + +# gl_UNKNOWN_WARNINGS_ARE_ERRORS +# ------------------------------ +# Clang doesn't complain about unknown warning options unless one also +# specifies -Wunknown-warning-option -Werror. Detect this. +# +# The effects of this macro depend on the current language (_AC_LANG). +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS], +[_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) + +# Specialization for _AC_LANG = C. This macro can be AC_REQUIREd. +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C)], +[ + AC_LANG_PUSH([C]) + gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL + AC_LANG_POP([C]) +]) + +# Specialization for _AC_LANG = C++. This macro can be AC_REQUIREd. +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C++)], +[ + AC_LANG_PUSH([C++]) + gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL + AC_LANG_POP([C++]) +]) + +# Specialization for _AC_LANG = Objective C. This macro can be AC_REQUIREd. +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS(Objective C)], +[ + AC_LANG_PUSH([Objective C]) + gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL + AC_LANG_POP([Objective C]) +]) + +AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL], +[gl_COMPILER_OPTION_IF([-Werror -Wunknown-warning-option], + [gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'], + [gl_unknown_warnings_are_errors=])]) + +# gl_WARN_ADD(OPTION, [VARIABLE = WARN_CFLAGS/WARN_CXXFLAGS], +# [PROGRAM = AC_LANG_PROGRAM()]) +# ----------------------------------------------------------- +# Adds OPTION to VARIABLE (which defaults to WARN_CFLAGS or WARN_CXXFLAGS) +# if the compiler supports it when compiling PROGRAM. +# +# If VARIABLE is a variable name, AC_SUBST it. +# +# The effects of this macro depend on the current language (_AC_LANG). +# +# Example: gl_WARN_ADD([-Wparentheses]). +AC_DEFUN([gl_WARN_ADD], +[AC_REQUIRE([gl_UNKNOWN_WARNINGS_ARE_ERRORS(]_AC_LANG[)]) +gl_COMPILER_OPTION_IF([$1], + [AS_VAR_APPEND(m4_if([$2], [], [[WARN_]_AC_LANG_PREFIX[FLAGS]], [[$2]]), [" $1"])], + [], + [$3]) +m4_ifval([$2], + [AS_LITERAL_IF([$2], [AC_SUBST([$2])])], + [AC_SUBST([WARN_]_AC_LANG_PREFIX[FLAGS])])dnl +]) + + +# gl_CC_INHIBIT_WARNINGS +# sets and substitutes a variable GL_CFLAG_INHIBIT_WARNINGS, to a $(CC) option +# that reverts all preceding -W* options, if available. +# This is expected to be '-w' at least on gcc, clang, AIX xlc, xlclang, Sun cc, +# "compile cl" (MSVC), "compile clang-cl" (MSVC-compatible clang). Or it can be +# empty. +AC_DEFUN([gl_CC_INHIBIT_WARNINGS], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([for C compiler option to inhibit all warnings], + [gl_cv_cc_winhibit], + [rm -f conftest* + echo 'int dummy;' > conftest.c + AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c 2>conftest1.err]) >/dev/null + AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -w -c conftest.c 2>conftest2.err]) >/dev/null + if test $? = 0 && test `wc -l < conftest1.err` = `wc -l < conftest2.err`; then + gl_cv_cc_winhibit='-w' + else + gl_cv_cc_winhibit=none + fi + rm -f conftest* + ]) + case "$gl_cv_cc_winhibit" in + none) GL_CFLAG_INHIBIT_WARNINGS='' ;; + *) + GL_CFLAG_INHIBIT_WARNINGS="$gl_cv_cc_winhibit" + dnl If all warnings are inhibited, there's no point in having the GCC + dnl analyzer enabled. This saves RAM requirements and CPU consumption. + gl_WARN_ADD([-fno-analyzer], [GL_CFLAG_INHIBIT_WARNINGS]) + ;; + esac + AC_SUBST([GL_CFLAG_INHIBIT_WARNINGS]) +]) + +# gl_CXX_INHIBIT_WARNINGS +# sets and substitutes a variable GL_CXXFLAG_INHIBIT_WARNINGS, to a $(CC) option +# that reverts all preceding -W* options, if available. +AC_DEFUN([gl_CXX_INHIBIT_WARNINGS], +[ + dnl Requires AC_PROG_CXX or gl_PROG_ANSI_CXX. + if test -n "$CXX" && test "$CXX" != no; then + AC_CACHE_CHECK([for C++ compiler option to inhibit all warnings], + [gl_cv_cxx_winhibit], + [rm -f conftest* + echo 'int dummy;' > conftest.cc + AC_TRY_COMMAND([${CXX-c++} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>conftest1.err]) >/dev/null + AC_TRY_COMMAND([${CXX-c++} $CXXFLAGS $CPPFLAGS -w -c conftest.cc 2>conftest2.err]) >/dev/null + if test $? = 0 && test `wc -l < conftest1.err` = `wc -l < conftest2.err`; then + gl_cv_cxx_winhibit='-w' + else + gl_cv_cxx_winhibit=none + fi + rm -f conftest* + ]) + case "$gl_cv_cxx_winhibit" in + none) GL_CXXFLAG_INHIBIT_WARNINGS='' ;; + *) + GL_CXXFLAG_INHIBIT_WARNINGS="$gl_cv_cxx_winhibit" + dnl If all warnings are inhibited, there's no point in having the GCC + dnl analyzer enabled. This saves RAM requirements and CPU consumption. + gl_WARN_ADD([-fno-analyzer], [GL_CXXFLAG_INHIBIT_WARNINGS]) + ;; + esac + else + GL_CXXFLAG_INHIBIT_WARNINGS='' + fi + AC_SUBST([GL_CXXFLAG_INHIBIT_WARNINGS]) +]) + + +# Local Variables: +# mode: autoconf +# End: diff --git a/gl/m4/wchar_h.m4 b/gl/m4/wchar_h.m4 new file mode 100644 index 0000000..442932b --- /dev/null +++ b/gl/m4/wchar_h.m4 @@ -0,0 +1,262 @@ +dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. + +dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Eric Blake. + +# wchar_h.m4 serial 60 + +AC_DEFUN_ONCE([gl_WCHAR_H], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + AC_REQUIRE([gl_WCHAR_H_INLINE_OK]) + dnl Prepare for creating substitute <wchar.h>. + dnl Check for <wchar.h> (missing in Linux uClibc when built without wide + dnl character support). + dnl <wchar.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([wchar.h]) + if test $ac_cv_header_wchar_h = yes; then + HAVE_WCHAR_H=1 + else + HAVE_WCHAR_H=0 + fi + AC_SUBST([HAVE_WCHAR_H]) + + AC_REQUIRE([gl_FEATURES_H]) + + AC_REQUIRE([gt_TYPE_WINT_T]) + if test $gt_cv_c_wint_t = yes; then + HAVE_WINT_T=1 + else + HAVE_WINT_T=0 + fi + AC_SUBST([HAVE_WINT_T]) + + AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ + #include <wchar.h> + ]], + [btowc wctob mbsinit mbrtowc mbrlen mbsrtowcs mbsnrtowcs wcrtomb + wcsrtombs wcsnrtombs wcwidth + wmemchr wmemcmp wmemcpy wmemmove wmempcpy wmemset + wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp + wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr + wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime + ]) + + AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS([wcsdup], [], [], [[ + #include <wchar.h> + ]]) + if test $ac_cv_have_decl_wcsdup = no; then + HAVE_DECL_WCSDUP=0 + fi +]) + +dnl Check whether <wchar.h> is usable at all. +AC_DEFUN([gl_WCHAR_H_INLINE_OK], +[ + dnl Test whether <wchar.h> suffers due to the transition from '__inline' to + dnl 'gnu_inline'. See <https://sourceware.org/bugzilla/show_bug.cgi?id=4022> + dnl and <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary, + dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and + dnl the option -std=c99 or -std=gnu99, leads to a broken <wchar.h>. + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([whether <wchar.h> uses 'inline' correctly], + [gl_cv_header_wchar_h_correct_inline], + [gl_cv_header_wchar_h_correct_inline=yes + case "$host_os" in + *-gnu* | gnu*) + AC_LANG_CONFTEST([ + AC_LANG_SOURCE([[ + #define wcstod renamed_wcstod + #include <wchar.h> + extern int zero (void); + int main () { return zero(); } + ]])]) + dnl Do not rename the object file from conftest.$ac_objext to + dnl conftest1.$ac_objext, as this will cause the link to fail on + dnl z/OS when using the XPLINK object format (due to duplicate + dnl CSECT names). Instead, temporarily redefine $ac_compile so + dnl that the object file has the latter name from the start. + save_ac_compile="$ac_compile" + ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/` + if echo '#include "conftest.c"' >conftest1.c \ + && AC_TRY_EVAL([ac_compile]); then + AC_LANG_CONFTEST([ + AC_LANG_SOURCE([[ + #define wcstod renamed_wcstod + #include <wchar.h> + int zero (void) { return 0; } + ]])]) + dnl See note above about renaming object files. + ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/` + if echo '#include "conftest.c"' >conftest2.c \ + && AC_TRY_EVAL([ac_compile]); then + if $CC -o conftest$ac_exeext $CFLAGS $LDFLAGS conftest1.$ac_objext conftest2.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD 2>&1; then + : + else + gl_cv_header_wchar_h_correct_inline=no + fi + fi + fi + ac_compile="$save_ac_compile" + rm -f conftest[12].c conftest[12].$ac_objext conftest$ac_exeext + ;; + esac + ]) + if test $gl_cv_header_wchar_h_correct_inline = no; then + AC_MSG_ERROR([<wchar.h> cannot be used with this compiler ($CC $CFLAGS $CPPFLAGS). +This is a known interoperability problem of glibc <= 2.5 with gcc >= 4.3 in +C99 mode. You have four options: + - Add the flag -fgnu89-inline to CC and reconfigure, or + - Fix your include files, using parts of + <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or + - Use a gcc version older than 4.3, or + - Don't use the flags -std=c99 or -std=gnu99. +Configuration aborted.]) + fi +]) + +# gl_WCHAR_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_WCHAR_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_WCHAR_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_WCHAR_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_WCHAR_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_BTOWC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCTOB]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSINIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBRTOWC]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBRLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSRTOWCS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MBSNRTOWCS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCRTOMB]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSRTOMBS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNRTOMBS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCWIDTH]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMCMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMMOVE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMPCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WMEMSET]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNLEN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCPCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCPNCPY]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNCAT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNCMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCASECMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSNCASECMP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCOLL]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSXFRM]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSDUP]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSRCHR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSCSPN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSSPN]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSPBRK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSSTR]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSTOK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSWIDTH]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCSFTIME]) + dnl Support Microsoft deprecated alias function names by default. + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_WCSDUP], [1]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_WCHAR_H_MODULE_INDICATOR_DEFAULTS]) + dnl Make sure the shell variable for GNULIB_FREE_POSIX is initialized. + gl_STDLIB_H_REQUIRE_DEFAULTS + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) +]) + +AC_DEFUN([gl_WCHAR_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC]) + HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT]) + HAVE_MBRTOWC=1; AC_SUBST([HAVE_MBRTOWC]) + HAVE_MBRLEN=1; AC_SUBST([HAVE_MBRLEN]) + HAVE_MBSRTOWCS=1; AC_SUBST([HAVE_MBSRTOWCS]) + HAVE_MBSNRTOWCS=1; AC_SUBST([HAVE_MBSNRTOWCS]) + HAVE_WCRTOMB=1; AC_SUBST([HAVE_WCRTOMB]) + HAVE_WCSRTOMBS=1; AC_SUBST([HAVE_WCSRTOMBS]) + HAVE_WCSNRTOMBS=1; AC_SUBST([HAVE_WCSNRTOMBS]) + HAVE_WMEMCHR=1; AC_SUBST([HAVE_WMEMCHR]) + HAVE_WMEMCMP=1; AC_SUBST([HAVE_WMEMCMP]) + HAVE_WMEMCPY=1; AC_SUBST([HAVE_WMEMCPY]) + HAVE_WMEMMOVE=1; AC_SUBST([HAVE_WMEMMOVE]) + HAVE_WMEMPCPY=1; AC_SUBST([HAVE_WMEMPCPY]) + HAVE_WMEMSET=1; AC_SUBST([HAVE_WMEMSET]) + HAVE_WCSLEN=1; AC_SUBST([HAVE_WCSLEN]) + HAVE_WCSNLEN=1; AC_SUBST([HAVE_WCSNLEN]) + HAVE_WCSCPY=1; AC_SUBST([HAVE_WCSCPY]) + HAVE_WCPCPY=1; AC_SUBST([HAVE_WCPCPY]) + HAVE_WCSNCPY=1; AC_SUBST([HAVE_WCSNCPY]) + HAVE_WCPNCPY=1; AC_SUBST([HAVE_WCPNCPY]) + HAVE_WCSCAT=1; AC_SUBST([HAVE_WCSCAT]) + HAVE_WCSNCAT=1; AC_SUBST([HAVE_WCSNCAT]) + HAVE_WCSCMP=1; AC_SUBST([HAVE_WCSCMP]) + HAVE_WCSNCMP=1; AC_SUBST([HAVE_WCSNCMP]) + HAVE_WCSCASECMP=1; AC_SUBST([HAVE_WCSCASECMP]) + HAVE_WCSNCASECMP=1; AC_SUBST([HAVE_WCSNCASECMP]) + HAVE_WCSCOLL=1; AC_SUBST([HAVE_WCSCOLL]) + HAVE_WCSXFRM=1; AC_SUBST([HAVE_WCSXFRM]) + HAVE_WCSDUP=1; AC_SUBST([HAVE_WCSDUP]) + HAVE_WCSCHR=1; AC_SUBST([HAVE_WCSCHR]) + HAVE_WCSRCHR=1; AC_SUBST([HAVE_WCSRCHR]) + HAVE_WCSCSPN=1; AC_SUBST([HAVE_WCSCSPN]) + HAVE_WCSSPN=1; AC_SUBST([HAVE_WCSSPN]) + HAVE_WCSPBRK=1; AC_SUBST([HAVE_WCSPBRK]) + HAVE_WCSSTR=1; AC_SUBST([HAVE_WCSSTR]) + HAVE_WCSTOK=1; AC_SUBST([HAVE_WCSTOK]) + HAVE_WCSWIDTH=1; AC_SUBST([HAVE_WCSWIDTH]) + HAVE_WCSFTIME=1; AC_SUBST([HAVE_WCSFTIME]) + HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB]) + HAVE_DECL_WCSDUP=1; AC_SUBST([HAVE_DECL_WCSDUP]) + HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) + REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T]) + REPLACE_BTOWC=0; AC_SUBST([REPLACE_BTOWC]) + REPLACE_WCTOB=0; AC_SUBST([REPLACE_WCTOB]) + REPLACE_MBSINIT=0; AC_SUBST([REPLACE_MBSINIT]) + REPLACE_MBRTOWC=0; AC_SUBST([REPLACE_MBRTOWC]) + REPLACE_MBRLEN=0; AC_SUBST([REPLACE_MBRLEN]) + REPLACE_MBSRTOWCS=0; AC_SUBST([REPLACE_MBSRTOWCS]) + REPLACE_MBSNRTOWCS=0; AC_SUBST([REPLACE_MBSNRTOWCS]) + REPLACE_WCRTOMB=0; AC_SUBST([REPLACE_WCRTOMB]) + REPLACE_WCSRTOMBS=0; AC_SUBST([REPLACE_WCSRTOMBS]) + REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS]) + REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) + REPLACE_WCSWIDTH=0; AC_SUBST([REPLACE_WCSWIDTH]) + REPLACE_WCSFTIME=0; AC_SUBST([REPLACE_WCSFTIME]) + REPLACE_WCSCMP=0; AC_SUBST([REPLACE_WCSCMP]) + REPLACE_WCSNCMP=0; AC_SUBST([REPLACE_WCSNCMP]) + REPLACE_WCSSTR=0; AC_SUBST([REPLACE_WCSSTR]) + REPLACE_WCSTOK=0; AC_SUBST([REPLACE_WCSTOK]) + REPLACE_WMEMCMP=0; AC_SUBST([REPLACE_WMEMCMP]) + REPLACE_WMEMPCPY=0; AC_SUBST([REPLACE_WMEMPCPY]) +]) diff --git a/gl/m4/wchar_t.m4 b/gl/m4/wchar_t.m4 new file mode 100644 index 0000000..50bde08 --- /dev/null +++ b/gl/m4/wchar_t.m4 @@ -0,0 +1,24 @@ +# wchar_t.m4 serial 4 (gettext-0.18.2) +dnl Copyright (C) 2002-2003, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <stddef.h> has the 'wchar_t' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WCHAR_T], +[ + AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + wchar_t foo = (wchar_t)'\0';]], + [[]])], + [gt_cv_c_wchar_t=yes], + [gt_cv_c_wchar_t=no])]) + if test $gt_cv_c_wchar_t = yes; then + AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.]) + fi +]) diff --git a/gl/m4/wcrtomb.m4 b/gl/m4/wcrtomb.m4 new file mode 100644 index 0000000..fa503b5 --- /dev/null +++ b/gl/m4/wcrtomb.m4 @@ -0,0 +1,150 @@ +# wcrtomb.m4 serial 18 +dnl Copyright (C) 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_WCRTOMB], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + gl_MBSTATE_T_BROKEN + + AC_CHECK_FUNCS_ONCE([wcrtomb]) + if test $ac_cv_func_wcrtomb = no; then + HAVE_WCRTOMB=0 + AC_CHECK_DECLS([wcrtomb],,, [[ + #include <wchar.h> + ]]) + if test $ac_cv_have_decl_wcrtomb = yes; then + dnl On Minix 3.1.8, the system's <wchar.h> declares wcrtomb() although + dnl it does not have the function. Avoid a collision with gnulib's + dnl replacement. + REPLACE_WCRTOMB=1 + fi + else + dnl We don't actually need to override wcrtomb when redefining the semantics + dnl of the mbstate_t type. Tested on 32-bit AIX. + dnl if test $REPLACE_MBSTATE_T = 1; then + dnl REPLACE_WCRTOMB=1 + dnl fi + if test $REPLACE_WCRTOMB = 0; then + dnl On Android 4.3, wcrtomb produces wrong characters in the C locale. + dnl On AIX 4.3, OSF/1 5.1 and Solaris <= 11.3, wcrtomb (NULL, 0, NULL) + dnl sometimes returns 0 instead of 1. + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) + AC_REQUIRE([gt_LOCALE_JA]) + AC_REQUIRE([gt_LOCALE_ZH_CN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether wcrtomb works in the C locale], + [gl_cv_func_wcrtomb_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <string.h> +#include <stdlib.h> +#include <wchar.h> +int main () +{ + mbstate_t state; + char out[64]; + int count; + memset (&state, 0, sizeof (state)); + out[0] = 'x'; + count = wcrtomb (out, L'a', &state); + return !(count == 1 && out[0] == 'a'); +}]])], + [gl_cv_func_wcrtomb_works=yes], + [gl_cv_func_wcrtomb_works=no], + [case "$host_os" in + # Guess no on Android. + linux*-android*) gl_cv_func_wcrtomb_works="guessing no";; + # Guess yes otherwise. + *) gl_cv_func_wcrtomb_works="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_wcrtomb_works" in + *yes) ;; + *) AC_DEFINE([WCRTOMB_C_LOCALE_BUG], [1], + [Define if the wcrtomb function does not work in the C locale.]) + REPLACE_WCRTOMB=1 ;; + esac + fi + if test $REPLACE_WCRTOMB = 0; then + AC_CACHE_CHECK([whether wcrtomb return value is correct], + [gl_cv_func_wcrtomb_retval], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on AIX 4, OSF/1, Solaris, native Windows. + aix4* | osf* | solaris* | mingw*) gl_cv_func_wcrtomb_retval="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_wcrtomb_retval="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +#include <wchar.h> +#include <stdlib.h> +int main () +{ + int result = 0; + if (strcmp ("$LOCALE_FR", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + if (wcrtomb (NULL, 0, NULL) != 1) + result |= 1; + } + if (strcmp ("$LOCALE_FR_UTF8", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + if (wcrtomb (NULL, 0, NULL) != 1) + result |= 2; + { + wchar_t wc = (wchar_t) 0xBADFACE; + if (mbtowc (&wc, "\303\274", 2) == 2) + if (wcrtomb (NULL, wc, NULL) != 1) + result |= 2; + } + } + if (strcmp ("$LOCALE_JA", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_JA") != NULL) + { + if (wcrtomb (NULL, 0, NULL) != 1) + result |= 4; + } + if (strcmp ("$LOCALE_ZH_CN", "none") != 0 + && setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) + { + if (wcrtomb (NULL, 0, NULL) != 1) + result |= 8; + } + return result; +}]])], + [gl_cv_func_wcrtomb_retval=yes], + [gl_cv_func_wcrtomb_retval=no], + [:]) + fi + ]) + case "$gl_cv_func_wcrtomb_retval" in + *yes) ;; + *) AC_DEFINE([WCRTOMB_RETVAL_BUG], [1], + [Define if the wcrtomb function has an incorrect return value.]) + REPLACE_WCRTOMB=1 ;; + esac + fi + fi +]) + +# Prerequisites of lib/wcrtomb.c. +AC_DEFUN([gl_PREREQ_WCRTOMB], [ + : +]) diff --git a/gl/m4/wctype_h.m4 b/gl/m4/wctype_h.m4 new file mode 100644 index 0000000..6856a73 --- /dev/null +++ b/gl/m4/wctype_h.m4 @@ -0,0 +1,200 @@ +# wctype_h.m4 serial 30 + +dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. + +dnl Copyright (C) 2006-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN_ONCE([gl_WCTYPE_H], +[ + AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CHECK_FUNCS_ONCE([iswcntrl]) + if test $ac_cv_func_iswcntrl = yes; then + HAVE_ISWCNTRL=1 + else + HAVE_ISWCNTRL=0 + fi + AC_SUBST([HAVE_ISWCNTRL]) + + AC_REQUIRE([gt_TYPE_WINT_T]) + if test $gt_cv_c_wint_t = yes; then + HAVE_WINT_T=1 + else + HAVE_WINT_T=0 + fi + AC_SUBST([HAVE_WINT_T]) + + AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) + + gl_CHECK_NEXT_HEADERS([wctype.h]) + if test $ac_cv_header_wctype_h = yes; then + if test $ac_cv_func_iswcntrl = yes; then + dnl Linux libc5 has an iswprint function that returns 0 for all arguments. + dnl The other functions are likely broken in the same way. + AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], + [ + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ + #include <wchar.h> + #include <wctype.h> + int main () { return iswprint ('x') == 0; } + ]])], + [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], + [dnl Guess no on Linux libc5, yes otherwise. + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> + #if __GNU_LIBRARY__ == 1 + Linux libc5 i18n is broken. + #endif]], [[]])], + [gl_cv_func_iswcntrl_works="guessing yes"], + [gl_cv_func_iswcntrl_works="guessing no"]) + ]) + ]) + fi + HAVE_WCTYPE_H=1 + else + HAVE_WCTYPE_H=0 + fi + AC_SUBST([HAVE_WCTYPE_H]) + + if test $GNULIBHEADERS_OVERRIDE_WINT_T = 1; then + REPLACE_ISWCNTRL=1 + else + case "$gl_cv_func_iswcntrl_works" in + *yes) REPLACE_ISWCNTRL=0 ;; + *) REPLACE_ISWCNTRL=1 ;; + esac + fi + AC_SUBST([REPLACE_ISWCNTRL]) + + if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then + dnl Redefine all of iswcntrl, ..., iswxdigit in <wctype.h>. + : + fi + + if test $REPLACE_ISWCNTRL = 1; then + REPLACE_TOWLOWER=1 + else + AC_CHECK_FUNCS([towlower]) + if test $ac_cv_func_towlower = yes; then + REPLACE_TOWLOWER=0 + else + AC_CHECK_DECLS([towlower],,, + [[#include <wchar.h> + #if HAVE_WCTYPE_H + # include <wctype.h> + #endif + ]]) + if test $ac_cv_have_decl_towlower = yes; then + dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and + dnl towupper() although it does not have the functions. Avoid a + dnl collision with gnulib's replacement. + REPLACE_TOWLOWER=1 + else + REPLACE_TOWLOWER=0 + fi + fi + fi + AC_SUBST([REPLACE_TOWLOWER]) + + if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then + dnl Redefine towlower, towupper in <wctype.h>. + : + fi + + dnl We assume that the wctype() and iswctype() functions exist if and only + dnl if the type wctype_t is defined in <wchar.h> or in <wctype.h> if that + dnl exists. + dnl HP-UX 11.00 declares all these in <wchar.h> and lacks <wctype.h>. + AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h> + #if HAVE_WCTYPE_H + # include <wctype.h> + #endif + wctype_t a; + ]], + [[]])], + [gl_cv_type_wctype_t=yes], + [gl_cv_type_wctype_t=no]) + ]) + if test $gl_cv_type_wctype_t = no; then + HAVE_WCTYPE_T=0 + fi + + dnl We assume that the wctrans() and towctrans() functions exist if and only + dnl if the type wctrans_t is defined in <wctype.h>. + AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h> + #include <wctype.h> + wctrans_t a; + ]], + [[]])], + [gl_cv_type_wctrans_t=yes], + [gl_cv_type_wctrans_t=no]) + ]) + if test $gl_cv_type_wctrans_t = no; then + HAVE_WCTRANS_T=0 + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include <wchar.h> +#endif +#include <wctype.h> + ]], + [wctype iswctype wctrans towctrans + ]) +]) + +# gl_WCTYPE_MODULE_INDICATOR([modulename]) +# sets the shell variable that indicates the presence of the given module +# to a C preprocessor expression that will evaluate to 1. +# This macro invocation must not occur in macros that are AC_REQUIREd. +AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR], +[ + dnl Ensure to expand the default settings once only. + gl_WCTYPE_H_REQUIRE_DEFAULTS + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +# Initializes the default values for AC_SUBSTed shell variables. +# This macro must not be AC_REQUIREd. It must only be invoked, and only +# outside of macros or in macros that are not AC_REQUIREd. +AC_DEFUN([gl_WCTYPE_H_REQUIRE_DEFAULTS], +[ + m4_defun(GL_MODULE_INDICATOR_PREFIX[_WCTYPE_H_MODULE_INDICATOR_DEFAULTS], [ + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISWBLANK]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISWDIGIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISWXDIGIT]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCTYPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISWCTYPE]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WCTRANS]) + gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TOWCTRANS]) + ]) + m4_require(GL_MODULE_INDICATOR_PREFIX[_WCTYPE_H_MODULE_INDICATOR_DEFAULTS]) + AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) +]) + +AC_DEFUN([gl_WCTYPE_H_DEFAULTS], +[ + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK]) + HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T]) + HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T]) + REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK]) + REPLACE_ISWDIGIT=0; AC_SUBST([REPLACE_ISWDIGIT]) + REPLACE_ISWXDIGIT=0; AC_SUBST([REPLACE_ISWXDIGIT]) +]) diff --git a/gl/m4/wint_t.m4 b/gl/m4/wint_t.m4 new file mode 100644 index 0000000..dfd743b --- /dev/null +++ b/gl/m4/wint_t.m4 @@ -0,0 +1,57 @@ +# wint_t.m4 serial 11 +dnl Copyright (C) 2003, 2007-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <wchar.h> has the 'wint_t' type and whether gnulib's +dnl <wchar.h> or <wctype.h> would, if present, override 'wint_t'. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WINT_T], +[ + AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h> + wint_t foo = (wchar_t)'\0';]], + [[]])], + [gt_cv_c_wint_t=yes], + [gt_cv_c_wint_t=no])]) + if test $gt_cv_c_wint_t = yes; then + AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.]) + + dnl Determine whether gnulib's <wchar.h> or <wctype.h> would, if present, + dnl override 'wint_t'. + AC_CACHE_CHECK([whether wint_t is large enough], + [gl_cv_type_wint_t_large_enough], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h> + int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1]; + ]])], + [gl_cv_type_wint_t_large_enough=yes], + [gl_cv_type_wint_t_large_enough=no])]) + if test $gl_cv_type_wint_t_large_enough = no; then + GNULIBHEADERS_OVERRIDE_WINT_T=1 + else + GNULIBHEADERS_OVERRIDE_WINT_T=0 + fi + else + GNULIBHEADERS_OVERRIDE_WINT_T=0 + fi + AC_SUBST([GNULIBHEADERS_OVERRIDE_WINT_T]) +]) + +dnl Prerequisites of the 'wint_t' override. +AC_DEFUN([gl_TYPE_WINT_T_PREREQ], +[ + AC_CHECK_HEADERS_ONCE([crtdefs.h]) + if test $ac_cv_header_crtdefs_h = yes; then + HAVE_CRTDEFS_H=1 + else + HAVE_CRTDEFS_H=0 + fi + AC_SUBST([HAVE_CRTDEFS_H]) +]) diff --git a/gl/m4/wmemchr.m4 b/gl/m4/wmemchr.m4 new file mode 100644 index 0000000..ac414fb --- /dev/null +++ b/gl/m4/wmemchr.m4 @@ -0,0 +1,25 @@ +# wmemchr.m4 serial 5 +dnl Copyright (C) 2011-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_WMEMCHR], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + dnl We cannot use AC_CHECK_FUNCS here, because the MSVC 9 header files + dnl provide this function as an inline function definition. + AC_CACHE_CHECK([for wmemchr], [gl_cv_func_wmemchr], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <wchar.h> + ]], + [[return ! wmemchr ((const wchar_t *) 0, (wchar_t) ' ', 0);]]) + ], + [gl_cv_func_wmemchr=yes], + [gl_cv_func_wmemchr=no]) + ]) + if test $gl_cv_func_wmemchr = no; then + HAVE_WMEMCHR=0 + fi +]) diff --git a/gl/m4/wmempcpy.m4 b/gl/m4/wmempcpy.m4 new file mode 100644 index 0000000..abf1df3 --- /dev/null +++ b/gl/m4/wmempcpy.m4 @@ -0,0 +1,24 @@ +# wmempcpy.m4 serial 3 +dnl Copyright (C) 2020-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_WMEMPCPY], +[ + AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) + + dnl Persuade glibc <wchar.h> to declare wmempcpy(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl The wmempcpy() declaration in lib/wchar.in.h uses 'restrict'. + AC_REQUIRE([AC_C_RESTRICT]) + + gl_CHECK_FUNCS_ANDROID([wmempcpy], [[#include <wchar.h>]]) + if test $ac_cv_func_wmempcpy = no; then + HAVE_WMEMPCPY=0 + case "$gl_cv_onwards_func_wmempcpy" in + future*) REPLACE_WMEMPCPY=1 ;; + esac + fi +]) diff --git a/gl/m4/xalloc.m4 b/gl/m4/xalloc.m4 new file mode 100644 index 0000000..fc56f59 --- /dev/null +++ b/gl/m4/xalloc.m4 @@ -0,0 +1,7 @@ +# xalloc.m4 serial 18 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XALLOC], [:]) diff --git a/gl/m4/xgetcwd.m4 b/gl/m4/xgetcwd.m4 new file mode 100644 index 0000000..9695d99 --- /dev/null +++ b/gl/m4/xgetcwd.m4 @@ -0,0 +1,10 @@ +#serial 8 +dnl Copyright (C) 2002-2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XGETCWD], +[ + : +]) diff --git a/gl/m4/xsize.m4 b/gl/m4/xsize.m4 new file mode 100644 index 0000000..649db9c --- /dev/null +++ b/gl/m4/xsize.m4 @@ -0,0 +1,12 @@ +# xsize.m4 serial 5 +dnl Copyright (C) 2003-2004, 2008-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XSIZE], +[ + dnl Prerequisites of lib/xsize.h. + AC_REQUIRE([gl_SIZE_MAX]) + AC_CHECK_HEADERS([stdint.h]) +]) diff --git a/gl/m4/xstrndup.m4 b/gl/m4/xstrndup.m4 new file mode 100644 index 0000000..1fb6a7d --- /dev/null +++ b/gl/m4/xstrndup.m4 @@ -0,0 +1,15 @@ +# xstrndup.m4 serial 2 +dnl Copyright (C) 2003, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XSTRNDUP], +[ + gl_PREREQ_XSTRNDUP +]) + +# Prerequisites of lib/xstrndup.c. +AC_DEFUN([gl_PREREQ_XSTRNDUP], [ + : +]) diff --git a/gl/m4/xvasprintf.m4 b/gl/m4/xvasprintf.m4 new file mode 100644 index 0000000..b7e0701 --- /dev/null +++ b/gl/m4/xvasprintf.m4 @@ -0,0 +1,8 @@ +# xvasprintf.m4 serial 2 +dnl Copyright (C) 2006, 2009-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Prerequisites of lib/xvasprintf.c. +AC_DEFUN([gl_XVASPRINTF], [:]) diff --git a/gl/m4/zzgnulib.m4 b/gl/m4/zzgnulib.m4 new file mode 100644 index 0000000..362102b --- /dev/null +++ b/gl/m4/zzgnulib.m4 @@ -0,0 +1,23 @@ +# zzgnulib.m4 serial 1 +dnl Copyright (C) 2020-2023 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl This file must be named something that sorts after all other +dnl package- or gnulib-provided .m4 files - at least for those packages +dnl that redefine AC_PROG_CC. + +dnl Redefine AC_PROG_CC so that it ends with invocations of gl_COMPILER_CLANG +dnl and gl_COMPILER_PREPARE_CHECK_DECL. +m4_define([AC_PROG_CC], + m4_defn([AC_PROG_CC])[ +gl_COMPILER_CLANG +gl_COMPILER_PREPARE_CHECK_DECL +]) + +# gl_ZZGNULIB +# ----------- +# Witness macro that this file has been included. Needed to force +# Automake to include this file after all other gnulib .m4 files. +AC_DEFUN([gl_ZZGNULIB]) |