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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:21:29 +0000
commit29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc (patch)
tree63ef546b10a81d461e5cf5ed9e98a68cd7dee1aa /src/grep/m4
parentInitial commit. (diff)
downloadkbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.tar.xz
kbuild-29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc.zip
Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/grep/m4')
-rw-r--r--src/grep/m4/00gnulib.m485
-rw-r--r--src/grep/m4/__inline.m422
-rw-r--r--src/grep/m4/absolute-header.m4100
-rw-r--r--src/grep/m4/alloca.m4108
-rw-r--r--src/grep/m4/arpa_inet_h.m474
-rw-r--r--src/grep/m4/asm-underscore.m483
-rw-r--r--src/grep/m4/assert.m424
-rw-r--r--src/grep/m4/btowc.m4105
-rw-r--r--src/grep/m4/builtin-expect.m449
-rw-r--r--src/grep/m4/c-stack.m421
-rw-r--r--src/grep/m4/calloc.m482
-rw-r--r--src/grep/m4/chdir-long.m430
-rw-r--r--src/grep/m4/close.m435
-rw-r--r--src/grep/m4/closedir.m431
-rw-r--r--src/grep/m4/codeset.m424
-rw-r--r--src/grep/m4/configmake.m427
-rw-r--r--src/grep/m4/ctype_h.m447
-rw-r--r--src/grep/m4/cycle-check.m47
-rw-r--r--src/grep/m4/d-ino.m460
-rw-r--r--src/grep/m4/d-type.m432
-rw-r--r--src/grep/m4/dirent_h.m479
-rw-r--r--src/grep/m4/dirfd.m486
-rw-r--r--src/grep/m4/double-slash-root.m438
-rw-r--r--src/grep/m4/dup.m454
-rw-r--r--src/grep/m4/dup2.m4105
-rw-r--r--src/grep/m4/eealloc.m431
-rw-r--r--src/grep/m4/environ.m446
-rw-r--r--src/grep/m4/errno_h.m4133
-rw-r--r--src/grep/m4/error.m427
-rw-r--r--src/grep/m4/exponentd.m4116
-rw-r--r--src/grep/m4/extensions.m4227
-rw-r--r--src/grep/m4/extern-inline.m4114
-rw-r--r--src/grep/m4/fchdir.m468
-rw-r--r--src/grep/m4/fcntl-o.m4140
-rw-r--r--src/grep/m4/fcntl-safer.m416
-rw-r--r--src/grep/m4/fcntl.m4151
-rw-r--r--src/grep/m4/fcntl_h.m470
-rw-r--r--src/grep/m4/fdopen.m451
-rw-r--r--src/grep/m4/fdopendir.m467
-rw-r--r--src/grep/m4/filenamecat.m416
-rw-r--r--src/grep/m4/flexmember.m444
-rw-r--r--src/grep/m4/float_h.m4108
-rw-r--r--src/grep/m4/fnmatch.m4153
-rw-r--r--src/grep/m4/fnmatch_h.m490
-rw-r--r--src/grep/m4/fopen.m4148
-rw-r--r--src/grep/m4/fpending.m436
-rw-r--r--src/grep/m4/fpieee.m454
-rw-r--r--src/grep/m4/free.m452
-rw-r--r--src/grep/m4/fstat.m440
-rw-r--r--src/grep/m4/fstatat.m465
-rw-r--r--src/grep/m4/ftruncate.m440
-rw-r--r--src/grep/m4/fts.m449
-rw-r--r--src/grep/m4/getcwd.m4166
-rw-r--r--src/grep/m4/getdtablesize.m463
-rw-r--r--src/grep/m4/getopt.m4381
-rw-r--r--src/grep/m4/getpagesize.m449
-rw-r--r--src/grep/m4/getprogname.m443
-rw-r--r--src/grep/m4/gettext.m4401
-rw-r--r--src/grep/m4/gettimeofday.m469
-rw-r--r--src/grep/m4/gnulib-common.m4827
-rw-r--r--src/grep/m4/gnulib-comp.m42623
-rw-r--r--src/grep/m4/host-cpu-c-abi.m4675
-rw-r--r--src/grep/m4/i-ring.m410
-rw-r--r--src/grep/m4/iconv.m4283
-rw-r--r--src/grep/m4/iconv_h.m472
-rw-r--r--src/grep/m4/iconv_open.m460
-rw-r--r--src/grep/m4/include_next.m4224
-rw-r--r--src/grep/m4/inet_pton.m470
-rw-r--r--src/grep/m4/inline.m440
-rw-r--r--src/grep/m4/intl-thread-locale.m4219
-rw-r--r--src/grep/m4/intlmacosx.m465
-rw-r--r--src/grep/m4/intmax_t.m459
-rw-r--r--src/grep/m4/inttostr.m432
-rw-r--r--src/grep/m4/inttypes.m4180
-rw-r--r--src/grep/m4/inttypes_h.m429
-rw-r--r--src/grep/m4/ioctl.m444
-rw-r--r--src/grep/m4/isatty.m419
-rw-r--r--src/grep/m4/isblank.m417
-rw-r--r--src/grep/m4/iswblank.m434
-rw-r--r--src/grep/m4/iswctype.m411
-rw-r--r--src/grep/m4/iswdigit.m4115
-rw-r--r--src/grep/m4/iswxdigit.m4106
-rw-r--r--src/grep/m4/langinfo_h.m4137
-rw-r--r--src/grep/m4/largefile.m4180
-rw-r--r--src/grep/m4/lcmessage.m435
-rw-r--r--src/grep/m4/lib-ld.m4168
-rw-r--r--src/grep/m4/lib-link.m4813
-rw-r--r--src/grep/m4/lib-prefix.m4323
-rw-r--r--src/grep/m4/libsigsegv.m416
-rw-r--r--src/grep/m4/libunistring-base.m4141
-rw-r--r--src/grep/m4/limits-h.m444
-rw-r--r--src/grep/m4/localcharset.m411
-rw-r--r--src/grep/m4/locale-fr.m4253
-rw-r--r--src/grep/m4/locale-ja.m4143
-rw-r--r--src/grep/m4/locale-tr.m4126
-rw-r--r--src/grep/m4/locale-zh.m4137
-rw-r--r--src/grep/m4/locale_h.m4174
-rw-r--r--src/grep/m4/localeconv.m422
-rw-r--r--src/grep/m4/localename.m441
-rw-r--r--src/grep/m4/lock.m447
-rw-r--r--src/grep/m4/lseek.m472
-rw-r--r--src/grep/m4/lstat.m479
-rw-r--r--src/grep/m4/malloc.m4174
-rw-r--r--src/grep/m4/malloca.m414
-rw-r--r--src/grep/m4/manywarnings.m4209
-rw-r--r--src/grep/m4/mbchar.m413
-rw-r--r--src/grep/m4/mbiter.m414
-rw-r--r--src/grep/m4/mbrlen.m4238
-rw-r--r--src/grep/m4/mbrtowc.m4790
-rw-r--r--src/grep/m4/mbsinit.m444
-rw-r--r--src/grep/m4/mbslen.m416
-rw-r--r--src/grep/m4/mbsrtowcs.m4141
-rw-r--r--src/grep/m4/mbstate_t.m434
-rw-r--r--src/grep/m4/mbtowc.m424
-rw-r--r--src/grep/m4/memchr.m4106
-rw-r--r--src/grep/m4/mempcpy.m426
-rw-r--r--src/grep/m4/memrchr.m423
-rw-r--r--src/grep/m4/minmax.m444
-rw-r--r--src/grep/m4/mmap-anon.m455
-rw-r--r--src/grep/m4/mode_t.m426
-rw-r--r--src/grep/m4/msvc-inval.m419
-rw-r--r--src/grep/m4/msvc-nothrow.m410
-rw-r--r--src/grep/m4/multiarch.m465
-rw-r--r--src/grep/m4/musl.m418
-rw-r--r--src/grep/m4/nanosleep.m4161
-rw-r--r--src/grep/m4/netinet_in_h.m431
-rw-r--r--src/grep/m4/nl_langinfo.m477
-rw-r--r--src/grep/m4/nls.m432
-rw-r--r--src/grep/m4/nocrash.m4131
-rw-r--r--src/grep/m4/obstack.m435
-rw-r--r--src/grep/m4/off_t.m418
-rw-r--r--src/grep/m4/open-cloexec.m421
-rw-r--r--src/grep/m4/open-slash.m460
-rw-r--r--src/grep/m4/open.m456
-rw-r--r--src/grep/m4/openat.m438
-rw-r--r--src/grep/m4/opendir.m432
-rw-r--r--src/grep/m4/pathmax.m442
-rw-r--r--src/grep/m4/pcre.m458
-rw-r--r--src/grep/m4/perl.m446
-rw-r--r--src/grep/m4/perror.m471
-rw-r--r--src/grep/m4/pipe.m415
-rw-r--r--src/grep/m4/pkg.m4343
-rw-r--r--src/grep/m4/po.m4452
-rw-r--r--src/grep/m4/printf.m41728
-rw-r--r--src/grep/m4/progtest.m491
-rw-r--r--src/grep/m4/pthread-thread.m469
-rw-r--r--src/grep/m4/pthread_h.m4283
-rw-r--r--src/grep/m4/pthread_rwlock_rdlock.m4185
-rw-r--r--src/grep/m4/pthread_sigmask.m4274
-rw-r--r--src/grep/m4/putenv.m464
-rw-r--r--src/grep/m4/quote.m413
-rw-r--r--src/grep/m4/quotearg.m411
-rw-r--r--src/grep/m4/raise.m436
-rw-r--r--src/grep/m4/rawmemchr.m420
-rw-r--r--src/grep/m4/read.m428
-rw-r--r--src/grep/m4/readdir.m415
-rw-r--r--src/grep/m4/realloc.m463
-rw-r--r--src/grep/m4/reallocarray.m423
-rw-r--r--src/grep/m4/regex.m4396
-rw-r--r--src/grep/m4/safe-read.m412
-rw-r--r--src/grep/m4/save-cwd.m411
-rw-r--r--src/grep/m4/sched_h.m4106
-rw-r--r--src/grep/m4/select.m4117
-rw-r--r--src/grep/m4/setenv.m4166
-rw-r--r--src/grep/m4/setlocale.m485
-rw-r--r--src/grep/m4/setlocale_null.m498
-rw-r--r--src/grep/m4/sigaction.m440
-rw-r--r--src/grep/m4/sigaltstack.m4197
-rw-r--r--src/grep/m4/signal_h.m4100
-rw-r--r--src/grep/m4/signalblocking.m423
-rw-r--r--src/grep/m4/size_max.m475
-rw-r--r--src/grep/m4/sleep.m466
-rw-r--r--src/grep/m4/snprintf.m462
-rw-r--r--src/grep/m4/socketlib.m496
-rw-r--r--src/grep/m4/sockets.m417
-rw-r--r--src/grep/m4/socklen.m476
-rw-r--r--src/grep/m4/sockpfaf.m484
-rw-r--r--src/grep/m4/ssize_t.m423
-rw-r--r--src/grep/m4/stack-direction.m4105
-rw-r--r--src/grep/m4/stat-time.m483
-rw-r--r--src/grep/m4/stat.m485
-rw-r--r--src/grep/m4/stdalign.m459
-rw-r--r--src/grep/m4/stdarg.m478
-rw-r--r--src/grep/m4/stdbool.m4122
-rw-r--r--src/grep/m4/stddef_h.m499
-rw-r--r--src/grep/m4/stdint.m4533
-rw-r--r--src/grep/m4/stdint_h.m427
-rw-r--r--src/grep/m4/stdio_h.m4232
-rw-r--r--src/grep/m4/stdlib_h.m4194
-rw-r--r--src/grep/m4/stpcpy.m425
-rw-r--r--src/grep/m4/strdup.m432
-rw-r--r--src/grep/m4/strerror.m4102
-rw-r--r--src/grep/m4/strerror_r.m4173
-rw-r--r--src/grep/m4/string_h.m4143
-rw-r--r--src/grep/m4/strnlen.m430
-rw-r--r--src/grep/m4/strstr.m4149
-rw-r--r--src/grep/m4/strtoimax.m488
-rw-r--r--src/grep/m4/strtoll.m451
-rw-r--r--src/grep/m4/strtoull.m451
-rw-r--r--src/grep/m4/strtoumax.m427
-rw-r--r--src/grep/m4/symlink.m455
-rw-r--r--src/grep/m4/sys_ioctl_h.m479
-rw-r--r--src/grep/m4/sys_select_h.m4110
-rw-r--r--src/grep/m4/sys_socket_h.m4205
-rw-r--r--src/grep/m4/sys_stat_h.m4127
-rw-r--r--src/grep/m4/sys_time_h.m4120
-rw-r--r--src/grep/m4/sys_types_h.m470
-rw-r--r--src/grep/m4/sys_uio_h.m446
-rw-r--r--src/grep/m4/thread.m417
-rw-r--r--src/grep/m4/threadlib.m4654
-rw-r--r--src/grep/m4/time_h.m4175
-rw-r--r--src/grep/m4/unistd-safer.m410
-rw-r--r--src/grep/m4/unistd_h.m4267
-rw-r--r--src/grep/m4/unlocked-io.m436
-rw-r--r--src/grep/m4/vasnprintf.m4298
-rw-r--r--src/grep/m4/version-etc.m433
-rw-r--r--src/grep/m4/visibility.m482
-rw-r--r--src/grep/m4/warn-on-use.m449
-rw-r--r--src/grep/m4/warnings.m4110
-rw-r--r--src/grep/m4/wchar_h.m4255
-rw-r--r--src/grep/m4/wchar_t.m424
-rw-r--r--src/grep/m4/wcrtomb.m4146
-rw-r--r--src/grep/m4/wctob.m4109
-rw-r--r--src/grep/m4/wctomb.m419
-rw-r--r--src/grep/m4/wctype_h.m4200
-rw-r--r--src/grep/m4/wcwidth.m4115
-rw-r--r--src/grep/m4/windows-stat-inodes.m419
-rw-r--r--src/grep/m4/wint_t.m457
-rw-r--r--src/grep/m4/wmemchr.m425
-rw-r--r--src/grep/m4/wmempcpy.m421
-rw-r--r--src/grep/m4/xalloc.m47
-rw-r--r--src/grep/m4/xsize.m412
-rw-r--r--src/grep/m4/xstrtol.m410
-rw-r--r--src/grep/m4/year2038.m4124
-rw-r--r--src/grep/m4/zzgnulib.m423
235 files changed, 28280 insertions, 0 deletions
diff --git a/src/grep/m4/00gnulib.m4 b/src/grep/m4/00gnulib.m4
new file mode 100644
index 0000000..9ba1743
--- /dev/null
+++ b/src/grep/m4/00gnulib.m4
@@ -0,0 +1,85 @@
+# 00gnulib.m4 serial 8
+dnl Copyright (C) 2009-2021 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/src/grep/m4/__inline.m4 b/src/grep/m4/__inline.m4
new file mode 100644
index 0000000..b28cc6a
--- /dev/null
+++ b/src/grep/m4/__inline.m4
@@ -0,0 +1,22 @@
+# Test for __inline keyword
+dnl Copyright 2017-2021 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/src/grep/m4/absolute-header.m4 b/src/grep/m4/absolute-header.m4
new file mode 100644
index 0000000..52d80d0
--- /dev/null
+++ b/src/grep/m4/absolute-header.m4
@@ -0,0 +1,100 @@
+# absolute-header.m4 serial 17
+dnl Copyright (C) 2006-2021 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/src/grep/m4/alloca.m4 b/src/grep/m4/alloca.m4
new file mode 100644
index 0000000..ba2f679
--- /dev/null
+++ b/src/grep/m4/alloca.m4
@@ -0,0 +1,108 @@
+# alloca.m4 serial 20
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2021 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 $gl_cv_rpl_alloca = yes; then
+ dnl OK, alloca can be implemented through a compiler built-in.
+ AC_DEFINE([HAVE_ALLOCA], [1],
+ [Define to 1 if you have 'alloca' after including <alloca.h>,
+ a header that may be supplied by this distribution.])
+ ALLOCA_H=alloca.h
+ else
+ dnl alloca exists as a library function, i.e. it is slow and probably
+ dnl a memory leak. Don't define HAVE_ALLOCA in this case.
+ ALLOCA_H=
+ fi
+ else
+ ALLOCA_H=alloca.h
+ fi
+ AC_SUBST([ALLOCA_H])
+ AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"])
+
+ 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/src/grep/m4/arpa_inet_h.m4 b/src/grep/m4/arpa_inet_h.m4
new file mode 100644
index 0000000..a3ba256
--- /dev/null
+++ b/src/grep/m4/arpa_inet_h.m4
@@ -0,0 +1,74 @@
+# arpa_inet_h.m4 serial 17
+dnl Copyright (C) 2006, 2008-2021 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 and Bruno Haible
+
+AC_DEFUN_ONCE([gl_ARPA_INET_H],
+[
+ dnl Ensure to expand the default settings once only, before all statements
+ dnl that occur in other macros.
+ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
+
+ AC_CHECK_HEADERS_ONCE([arpa/inet.h])
+ if test $ac_cv_header_arpa_inet_h = yes; then
+ HAVE_ARPA_INET_H=1
+ else
+ HAVE_ARPA_INET_H=0
+ fi
+ AC_SUBST([HAVE_ARPA_INET_H])
+ dnl <arpa/inet.h> is always overridden, because of GNULIB_POSIXCHECK.
+ gl_CHECK_NEXT_HEADERS([arpa/inet.h])
+
+ AC_REQUIRE([gl_FEATURES_H])
+
+ gl_PREREQ_SYS_H_WS2TCPIP
+
+ 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([[
+/* On some systems, this header is not self-consistent. */
+#if !(defined __GLIBC__ || defined __UCLIBC__)
+# include <sys/socket.h>
+#endif
+#ifdef __TANDEM
+# include <netdb.h>
+#endif
+#include <arpa/inet.h>
+ ]], [inet_ntop inet_pton])
+])
+
+# gl_ARPA_INET_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_ARPA_INET_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_ARPA_INET_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_ARPA_INET_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_ARPA_INET_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_INET_NTOP])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_INET_PTON])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_ARPA_INET_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_ARPA_INET_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_DECL_INET_NTOP=1; AC_SUBST([HAVE_DECL_INET_NTOP])
+ HAVE_DECL_INET_PTON=1; AC_SUBST([HAVE_DECL_INET_PTON])
+ REPLACE_INET_NTOP=0; AC_SUBST([REPLACE_INET_NTOP])
+ REPLACE_INET_PTON=0; AC_SUBST([REPLACE_INET_PTON])
+])
diff --git a/src/grep/m4/asm-underscore.m4 b/src/grep/m4/asm-underscore.m4
new file mode 100644
index 0000000..93b98be
--- /dev/null
+++ b/src/grep/m4/asm-underscore.m4
@@ -0,0 +1,83 @@
+# asm-underscore.m4 serial 5
+dnl Copyright (C) 2010-2021 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 $CPPFLAGS -c conftest.c) >/dev/null 2>&1
+ if test -f conftest.o; then
+ gl_asmext='s'
+ gl_c_asm_opt='-S'
+ else
+ gl_asmext='asm'
+ gl_c_asm_opt='-c -Fa'
+ fi
+ rm -f conftest*
+ ],
+ [gl_asmext='s'
+ gl_c_asm_opt='-S'
+ ])
+])
diff --git a/src/grep/m4/assert.m4 b/src/grep/m4/assert.m4
new file mode 100644
index 0000000..b5e56d7
--- /dev/null
+++ b/src/grep/m4/assert.m4
@@ -0,0 +1,24 @@
+#serial 7
+
+# Copyright (C) 1998-1999, 2001, 2004, 2008-2021 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+dnl based on code from Eleftherios Gkioulekas
+dnl Autoconf 2.60 provides AC_HEADER_ASSERT for the same purpose, but
+dnl it has broken semantics for --enable-assert until 2.64.
+AC_DEFUN([gl_ASSERT],
+[
+ AC_MSG_CHECKING([whether to enable assertions])
+ AC_ARG_ENABLE([assert],
+ [AS_HELP_STRING([--disable-assert], [turn off assertions])],
+ [AS_IF([test "x$enableval" = xno],
+ [AC_DEFINE([NDEBUG], [1],
+ [Define to 1 if assertions should be disabled.])],
+ [test "x$enableval" != xyes],
+ [AC_MSG_WARN([invalid argument supplied to --enable-assert])
+ enable_assert=yes])],
+ [enable_assert=yes])
+ AC_MSG_RESULT([$enable_assert])
+])
diff --git a/src/grep/m4/btowc.m4 b/src/grep/m4/btowc.m4
new file mode 100644
index 0000000..d2b2fe8
--- /dev/null
+++ b/src/grep/m4/btowc.m4
@@ -0,0 +1,105 @@
+# btowc.m4 serial 12
+dnl Copyright (C) 2008-2021 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
+ ])
+
+ case "$gl_cv_func_btowc_nul" in
+ *yes) ;;
+ *) REPLACE_BTOWC=1 ;;
+ esac
+ case "$gl_cv_func_btowc_eof" in
+ *yes) ;;
+ *) REPLACE_BTOWC=1 ;;
+ esac
+ fi
+])
+
+# Prerequisites of lib/btowc.c.
+AC_DEFUN([gl_PREREQ_BTOWC], [
+ :
+])
diff --git a/src/grep/m4/builtin-expect.m4 b/src/grep/m4/builtin-expect.m4
new file mode 100644
index 0000000..c584116
--- /dev/null
+++ b/src/grep/m4/builtin-expect.m4
@@ -0,0 +1,49 @@
+dnl Check for __builtin_expect.
+
+dnl Copyright 2016-2021 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/src/grep/m4/c-stack.m4 b/src/grep/m4/c-stack.m4
new file mode 100644
index 0000000..7cccb06
--- /dev/null
+++ b/src/grep/m4/c-stack.m4
@@ -0,0 +1,21 @@
+# Check prerequisites for compiling lib/c-stack.c.
+
+# Copyright (C) 2002-2004, 2008-2021 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 23
+
+AC_DEFUN([gl_C_STACK],
+[
+ dnl 'c-stack' needs -lsigsegv if and only if the 'sigsegv' module needs it.
+ if test "$with_libsigsegv" = yes; then
+ if test "$gl_cv_lib_sigsegv" = yes; then
+ AC_SUBST([LIBCSTACK], [$LIBSIGSEGV])
+ AC_SUBST([LTLIBCSTACK], [$LTLIBSIGSEGV])
+ fi
+ fi
+])
diff --git a/src/grep/m4/calloc.m4 b/src/grep/m4/calloc.m4
new file mode 100644
index 0000000..fe12b15
--- /dev/null
+++ b/src/grep/m4/calloc.m4
@@ -0,0 +1,82 @@
+# calloc.m4 serial 27
+
+# Copyright (C) 2004-2021 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*) 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])
+ if test $REPLACE_CALLOC = 0; then
+ _AC_FUNC_CALLOC_IF([], [REPLACE_CALLOC=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 = 1; then
+ REPLACE_CALLOC=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/src/grep/m4/chdir-long.m4 b/src/grep/m4/chdir-long.m4
new file mode 100644
index 0000000..e5cd8df
--- /dev/null
+++ b/src/grep/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, 2009-2021 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/src/grep/m4/close.m4 b/src/grep/m4/close.m4
new file mode 100644
index 0000000..77a5047
--- /dev/null
+++ b/src/grep/m4/close.m4
@@ -0,0 +1,35 @@
+# close.m4 serial 9
+dnl Copyright (C) 2008-2021 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_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/src/grep/m4/closedir.m4 b/src/grep/m4/closedir.m4
new file mode 100644
index 0000000..fc55a21
--- /dev/null
+++ b/src/grep/m4/closedir.m4
@@ -0,0 +1,31 @@
+# closedir.m4 serial 6
+dnl Copyright (C) 2011-2021 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
+ fi
+ 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
+ if test $HAVE_CLOSEDIR = 1; then
+ REPLACE_CLOSEDIR=1
+ fi
+ fi
+ ])
+ dnl Replace closedir() for supporting the gnulib-defined dirfd() function.
+ case $host_os,$HAVE_CLOSEDIR in
+ os2*,1)
+ REPLACE_CLOSEDIR=1;;
+ esac
+])
diff --git a/src/grep/m4/codeset.m4 b/src/grep/m4/codeset.m4
new file mode 100644
index 0000000..629f4ee
--- /dev/null
+++ b/src/grep/m4/codeset.m4
@@ -0,0 +1,24 @@
+# codeset.m4 serial 5 (gettext-0.18.2)
+dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016, 2019-2021 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 $am_cv_langinfo_codeset = yes; then
+ AC_DEFINE([HAVE_LANGINFO_CODESET], [1],
+ [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
+ fi
+])
diff --git a/src/grep/m4/configmake.m4 b/src/grep/m4/configmake.m4
new file mode 100644
index 0000000..d4f20ee
--- /dev/null
+++ b/src/grep/m4/configmake.m4
@@ -0,0 +1,27 @@
+# configmake.m4 serial 4
+dnl Copyright (C) 2010-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_PREREQ([2.60])
+
+# gl_CONFIGMAKE_PREP
+# ------------------
+# Guarantee all of the standard directory variables, even when used with
+# autoconf 2.64 (runstatedir wasn't supported before 2.70) or
+# automake 1.11 (runstatedir isn't supported even in 1.16.1).
+AC_DEFUN([gl_CONFIGMAKE_PREP],
+[
+ if test "x$lispdir" = x; then
+ AC_SUBST([lispdir], ['${datarootdir}/emacs/site-lisp'])
+ fi
+ dnl Added in autoconf 2.70.
+ if test "x$runstatedir" = x; then
+ AC_SUBST([runstatedir], ['${localstatedir}/run'])
+ fi
+
+ dnl Automake 1.11 provides pkglibexecdir merely without AC_SUBST.
+ dnl This blind use of AC_SUBST is safe.
+ AC_SUBST([pkglibexecdir], ['${libexecdir}/${PACKAGE}'])
+])
diff --git a/src/grep/m4/ctype_h.m4 b/src/grep/m4/ctype_h.m4
new file mode 100644
index 0000000..efdae45
--- /dev/null
+++ b/src/grep/m4/ctype_h.m4
@@ -0,0 +1,47 @@
+# ctype_h.m4 serial 9
+dnl Copyright (C) 2009-2021 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/src/grep/m4/cycle-check.m4 b/src/grep/m4/cycle-check.m4
new file mode 100644
index 0000000..5293230
--- /dev/null
+++ b/src/grep/m4/cycle-check.m4
@@ -0,0 +1,7 @@
+#serial 7
+dnl Copyright (C) 2005-2007, 2009-2021 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_CYCLE_CHECK], [:])
diff --git a/src/grep/m4/d-ino.m4 b/src/grep/m4/d-ino.m4
new file mode 100644
index 0000000..e4dcfeb
--- /dev/null
+++ b/src/grep/m4/d-ino.m4
@@ -0,0 +1,60 @@
+# serial 20
+
+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, 2009-2021 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 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/src/grep/m4/d-type.m4 b/src/grep/m4/d-type.m4
new file mode 100644
index 0000000..534a59e
--- /dev/null
+++ b/src/grep/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, 2009-2021 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/src/grep/m4/dirent_h.m4 b/src/grep/m4/dirent_h.m4
new file mode 100644
index 0000000..17e2a20
--- /dev/null
+++ b/src/grep/m4/dirent_h.m4
@@ -0,0 +1,79 @@
+# dirent_h.m4 serial 19
+dnl Copyright (C) 2008-2021 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])
+
+ 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])
+])
+
+# 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_CLOSEDIR=0; AC_SUBST([REPLACE_CLOSEDIR])
+ REPLACE_DIRFD=0; AC_SUBST([REPLACE_DIRFD])
+ REPLACE_FDOPENDIR=0; AC_SUBST([REPLACE_FDOPENDIR])
+])
diff --git a/src/grep/m4/dirfd.m4 b/src/grep/m4/dirfd.m4
new file mode 100644
index 0000000..3c9ce5d
--- /dev/null
+++ b/src/grep/m4/dirfd.m4
@@ -0,0 +1,86 @@
+# serial 26 -*- Autoconf -*-
+
+dnl Find out how to get the file descriptor associated with an open DIR*.
+
+# Copyright (C) 2001-2006, 2008-2021 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 for cross-compiles
+
+ 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])])
+
+ # Use the replacement if we have no function or macro with that name,
+ # or if OS/2 kLIBC whose dirfd() does not work.
+ # Replace only if the system declares dirfd already.
+ case $ac_cv_func_dirfd,$gl_cv_func_dirfd_macro,$host_os,$ac_cv_have_decl_dirfd in
+ no,no,*,yes | *,*,os2*,yes)
+ REPLACE_DIRFD=1
+ AC_DEFINE([REPLACE_DIRFD], [1],
+ [Define to 1 if gnulib's dirfd() replacement is used.]);;
+ esac
+])
+
+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/src/grep/m4/double-slash-root.m4 b/src/grep/m4/double-slash-root.m4
new file mode 100644
index 0000000..c9bbcef
--- /dev/null
+++ b/src/grep/m4/double-slash-root.m4
@@ -0,0 +1,38 @@
+# double-slash-root.m4 serial 4 -*- Autoconf -*-
+dnl Copyright (C) 2006, 2008-2021 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/src/grep/m4/dup.m4 b/src/grep/m4/dup.m4
new file mode 100644
index 0000000..433a466
--- /dev/null
+++ b/src/grep/m4/dup.m4
@@ -0,0 +1,54 @@
+# dup.m4 serial 7
+dnl Copyright (C) 2011-2021 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/src/grep/m4/dup2.m4 b/src/grep/m4/dup2.m4
new file mode 100644
index 0000000..0753a32
--- /dev/null
+++ b/src/grep/m4/dup2.m4
@@ -0,0 +1,105 @@
+#serial 27
+dnl Copyright (C) 2002, 2005, 2007, 2009-2021 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 $HAVE_FCHDIR = 0; then
+ REPLACE_DUP2=1
+ fi
+ ])
+])
+
+# Prerequisites of lib/dup2.c.
+AC_DEFUN([gl_PREREQ_DUP2], [])
diff --git a/src/grep/m4/eealloc.m4 b/src/grep/m4/eealloc.m4
new file mode 100644
index 0000000..002f0c8
--- /dev/null
+++ b/src/grep/m4/eealloc.m4
@@ -0,0 +1,31 @@
+# eealloc.m4 serial 3
+dnl Copyright (C) 2003, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_EEALLOC],
+[
+ AC_REQUIRE([gl_EEMALLOC])
+ AC_REQUIRE([gl_EEREALLOC])
+])
+
+AC_DEFUN([gl_EEMALLOC],
+[
+ _AC_FUNC_MALLOC_IF(
+ [gl_cv_func_malloc_0_nonnull=1],
+ [gl_cv_func_malloc_0_nonnull=0])
+ AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$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/src/grep/m4/environ.m4 b/src/grep/m4/environ.m4
new file mode 100644
index 0000000..ae53291
--- /dev/null
+++ b/src/grep/m4/environ.m4
@@ -0,0 +1,46 @@
+# environ.m4 serial 8
+dnl Copyright (C) 2001-2004, 2006-2021 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/src/grep/m4/errno_h.m4 b/src/grep/m4/errno_h.m4
new file mode 100644
index 0000000..51dfe92
--- /dev/null
+++ b/src/grep/m4/errno_h.m4
@@ -0,0 +1,133 @@
+# errno_h.m4 serial 13
+dnl Copyright (C) 2004, 2006, 2008-2021 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 $gl_cv_header_errno_h_complete = yes; then
+ ERRNO_H=''
+ else
+ gl_NEXT_HEADERS([errno.h])
+ ERRNO_H='errno.h'
+ fi
+ AC_SUBST([ERRNO_H])
+ AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"])
+ gl_REPLACE_ERRNO_VALUE([EMULTIHOP])
+ gl_REPLACE_ERRNO_VALUE([ENOLINK])
+ gl_REPLACE_ERRNO_VALUE([EOVERFLOW])
+])
+
+# Assuming $1 = EOVERFLOW.
+# The EOVERFLOW errno value ought to be defined in <errno.h>, according to
+# POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and
+# some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined.
+# Check for the value of EOVERFLOW.
+# Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE.
+AC_DEFUN([gl_REPLACE_ERRNO_VALUE],
+[
+ if test -n "$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/src/grep/m4/error.m4 b/src/grep/m4/error.m4
new file mode 100644
index 0000000..77f67f7
--- /dev/null
+++ b/src/grep/m4/error.m4
@@ -0,0 +1,27 @@
+#serial 14
+
+# Copyright (C) 1996-1998, 2001-2004, 2009-2021 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],
+[
+ 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.
+ 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])])
+])
+
+# Prerequisites of lib/error.c.
+AC_DEFUN([gl_PREREQ_ERROR],
+[
+ AC_REQUIRE([AC_FUNC_STRERROR_R])
+ :
+])
diff --git a/src/grep/m4/exponentd.m4 b/src/grep/m4/exponentd.m4
new file mode 100644
index 0000000..fb136f4
--- /dev/null
+++ b/src/grep/m4/exponentd.m4
@@ -0,0 +1,116 @@
+# exponentd.m4 serial 3
+dnl Copyright (C) 2007-2008, 2010-2021 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_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/src/grep/m4/extensions.m4 b/src/grep/m4/extensions.m4
new file mode 100644
index 0000000..5792a95
--- /dev/null
+++ b/src/grep/m4/extensions.m4
@@ -0,0 +1,227 @@
+# serial 22 -*- Autoconf -*-
+# Enable extensions on systems that normally disable them.
+
+# Copyright (C) 2003, 2006-2021 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([2.70.1], [], [
+
+# 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 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 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_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/src/grep/m4/extern-inline.m4 b/src/grep/m4/extern-inline.m4
new file mode 100644
index 0000000..a2acf12
--- /dev/null
+++ b/src/grep/m4/extern-inline.m4
@@ -0,0 +1,114 @@
+dnl 'extern inline' a la ISO C99.
+
+dnl Copyright 2012-2021 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],
+[
+ AH_VERBATIM([extern_inline],
+[/* 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 Sun C 5.12 SunOS_i386 2011/11/16.
+
+ 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 __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__ \
+ : (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 _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 static _GL_UNUSED
+# define _GL_EXTERN_INLINE static _GL_UNUSED
+#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/src/grep/m4/fchdir.m4 b/src/grep/m4/fchdir.m4
new file mode 100644
index 0000000..5d2fab7
--- /dev/null
+++ b/src/grep/m4/fchdir.m4
@@ -0,0 +1,68 @@
+# fchdir.m4 serial 26
+dnl Copyright (C) 2006-2021 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 $HAVE_FCHDIR = 0; then
+ AC_LIBOBJ([fchdir])
+ gl_PREREQ_FCHDIR
+ AC_DEFINE([REPLACE_FCHDIR], [1],
+ [Define to 1 if gnulib's fchdir() replacement is used.])
+ dnl We must also replace anything that can manipulate a directory fd,
+ dnl to keep our bookkeeping up-to-date. We don't have to replace
+ dnl fstatat, since no platform has fstatat but lacks fchdir.
+ AC_CACHE_CHECK([whether open can visit directories],
+ [gl_cv_func_open_directory_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <fcntl.h>
+ ]GL_MDA_DEFINES],
+ [[return open(".", O_RDONLY) < 0;]])],
+ [gl_cv_func_open_directory_works=yes],
+ [gl_cv_func_open_directory_works=no],
+ [case "$host_os" in
+ # Guess yes on Linux systems.
+ linux-* | linux) gl_cv_func_open_directory_works="guessing yes" ;;
+ # Guess yes on 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/src/grep/m4/fcntl-o.m4 b/src/grep/m4/fcntl-o.m4
new file mode 100644
index 0000000..7c459ad
--- /dev/null
+++ b/src/grep/m4/fcntl-o.m4
@@ -0,0 +1,140 @@
+# fcntl-o.m4 serial 7
+dnl Copyright (C) 2006, 2009-2021 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/src/grep/m4/fcntl-safer.m4 b/src/grep/m4/fcntl-safer.m4
new file mode 100644
index 0000000..0abd022
--- /dev/null
+++ b/src/grep/m4/fcntl-safer.m4
@@ -0,0 +1,16 @@
+#serial 9
+dnl Copyright (C) 2005-2007, 2009-2021 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_FCNTL_SAFER],
+[
+ dnl Prerequisites of lib/open-safer.c.
+ AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T])
+])
+
+AC_DEFUN([gl_OPENAT_SAFER],
+[
+ AC_REQUIRE([gl_FCNTL_SAFER])
+])
diff --git a/src/grep/m4/fcntl.m4 b/src/grep/m4/fcntl.m4
new file mode 100644
index 0000000..f626434
--- /dev/null
+++ b/src/grep/m4/fcntl.m4
@@ -0,0 +1,151 @@
+# fcntl.m4 serial 11
+dnl Copyright (C) 2009-2021 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/src/grep/m4/fcntl_h.m4 b/src/grep/m4/fcntl_h.m4
new file mode 100644
index 0000000..aba4473
--- /dev/null
+++ b/src/grep/m4/fcntl_h.m4
@@ -0,0 +1,70 @@
+# serial 20
+# Configure fcntl.h.
+dnl Copyright (C) 2006-2007, 2009-2021 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/src/grep/m4/fdopen.m4 b/src/grep/m4/fdopen.m4
new file mode 100644
index 0000000..e41ed63
--- /dev/null
+++ b/src/grep/m4/fdopen.m4
@@ -0,0 +1,51 @@
+# fdopen.m4 serial 5
+dnl Copyright (C) 2011-2021 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_FDOPEN],
+[
+ AC_REQUIRE([gl_STDIO_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_FDOPEN=1
+ fi
+ ])
+ if test $REPLACE_FDOPEN = 0; then
+ dnl Test whether fdopen() sets errno when it fails due to a bad fd argument.
+ AC_CACHE_CHECK([whether fdopen sets errno], [gl_cv_func_fdopen_works],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <errno.h>
+]GL_MDA_DEFINES[
+int
+main (void)
+{
+ FILE *fp;
+ errno = 0;
+ fp = fdopen (-1, "r");
+ if (fp == NULL && errno == 0)
+ return 1;
+ return 0;
+}]])],
+ [gl_cv_func_fdopen_works=yes],
+ [gl_cv_func_fdopen_works=no],
+ [case "$host_os" in
+ mingw*) gl_cv_func_fdopen_works="guessing no" ;;
+ *) gl_cv_func_fdopen_works="guessing yes" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_fdopen_works" in
+ *no) REPLACE_FDOPEN=1 ;;
+ esac
+ fi
+])
+
+dnl Prerequisites of lib/fdopen.c.
+AC_DEFUN([gl_PREREQ_FDOPEN], [])
diff --git a/src/grep/m4/fdopendir.m4 b/src/grep/m4/fdopendir.m4
new file mode 100644
index 0000000..d428380
--- /dev/null
+++ b/src/grep/m4/fdopendir.m4
@@ -0,0 +1,67 @@
+# serial 14
+# See if we need to provide fdopendir.
+
+dnl Copyright (C) 2009-2021 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*) 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/src/grep/m4/filenamecat.m4 b/src/grep/m4/filenamecat.m4
new file mode 100644
index 0000000..e6eac12
--- /dev/null
+++ b/src/grep/m4/filenamecat.m4
@@ -0,0 +1,16 @@
+# filenamecat.m4 serial 11
+dnl Copyright (C) 2002-2006, 2009-2021 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.
+ AC_CHECK_FUNCS_ONCE([mempcpy])
+])
diff --git a/src/grep/m4/flexmember.m4 b/src/grep/m4/flexmember.m4
new file mode 100644
index 0000000..49b1c75
--- /dev/null
+++ b/src/grep/m4/flexmember.m4
@@ -0,0 +1,44 @@
+# serial 5
+# Check for flexible array member support.
+
+# Copyright (C) 2006, 2009-2021 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 $ac_cv_c_flexmember = yes; then
+ AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [],
+ [Define to nothing if C supports flexible array members, and to
+ 1 if it does not. That way, with a declaration like 'struct s
+ { int n; short d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack
+ can be used with pre-C99 compilers.
+ Use 'FLEXSIZEOF (struct s, d, N * sizeof (short))' to calculate
+ the size in bytes of such a struct containing an N-element array.])
+ else
+ AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1])
+ fi
+])
diff --git a/src/grep/m4/float_h.m4 b/src/grep/m4/float_h.m4
new file mode 100644
index 0000000..ba38a28
--- /dev/null
+++ b/src/grep/m4/float_h.m4
@@ -0,0 +1,108 @@
+# float_h.m4 serial 12
+dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FLOAT_H],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ FLOAT_H=
+ REPLACE_FLOAT_LDBL=0
+ case "$host_os" in
+ aix* | beos* | openbsd* | mirbsd* | irix*)
+ FLOAT_H=float.h
+ ;;
+ freebsd* | dragonfly*)
+ case "$host_cpu" in
+changequote(,)dnl
+ i[34567]86 )
+changequote([,])dnl
+ FLOAT_H=float.h
+ ;;
+ x86_64 )
+ # On x86_64 systems, the C compiler may still be generating
+ # 32-bit code.
+ AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE(
+ [[#if defined __LP64__ || defined __x86_64__ || defined __amd64__
+ int ok;
+ #else
+ error fail
+ #endif
+ ]])],
+ [],
+ [FLOAT_H=float.h])
+ ;;
+ esac
+ ;;
+ linux*)
+ case "$host_cpu" in
+ powerpc*)
+ FLOAT_H=float.h
+ ;;
+ esac
+ ;;
+ esac
+ case "$host_os" in
+ aix* | freebsd* | dragonfly* | linux*)
+ if test -n "$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.
+ FLOAT_H=float.h
+ ;;
+ esac
+
+ if test -n "$FLOAT_H"; then
+ gl_NEXT_HEADERS([float.h])
+ fi
+ AC_SUBST([FLOAT_H])
+ AM_CONDITIONAL([GL_GENERATE_FLOAT_H], [test -n "$FLOAT_H"])
+ AC_SUBST([REPLACE_ITOLD])
+])
diff --git a/src/grep/m4/fnmatch.m4 b/src/grep/m4/fnmatch.m4
new file mode 100644
index 0000000..81589ca
--- /dev/null
+++ b/src/grep/m4/fnmatch.m4
@@ -0,0 +1,153 @@
+# Check for fnmatch - serial 15. -*- coding: utf-8 -*-
+
+# Copyright (C) 2000-2007, 2009-2021 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>
+ 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;
+ if (!n ("a*", "", 0))
+ return 1;
+ if (!y ("a*", "abc", 0))
+ return 1;
+ if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */
+ return 1;
+ if (!n ("d*/*1", "d/s/1", FNM_PATHNAME))
+ return 2;
+ if (!y ("a\\\\bc", "abc", 0))
+ return 3;
+ if (!n ("a\\\\bc", "abc", FNM_NOESCAPE))
+ return 3;
+ if (!y ("*x", ".x", 0))
+ return 4;
+ if (!n ("*x", ".x", FNM_PERIOD))
+ return 4;
+ if (!y (Apat, "\\\\", 0))
+ return 5;
+ if (!y (Apat, "A", 0))
+ return 5;
+ if (!y (apat, "\\\\", 0))
+ return 5;
+ if (!y (apat, "a", 0))
+ return 5;
+ if (!(n (Apat, A_1, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(n (apat, a_1, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(y (Apat, A01, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(y (apat, a01, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(y (Apat, bs_1, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(y (apat, bs_1, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(n (Apat, bs01, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(n (apat, bs01, 0) == ('a' < '\\\\')))
+ return 5;
+ $gl_fnmatch_gnu_start
+ if (!y ("xxXX", "xXxX", FNM_CASEFOLD))
+ result |= 8;
+ if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH))
+ result |= 16;
+ if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME))
+ result |= 32;
+ 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;
+ $gl_fnmatch_gnu_end
+ return result;
+ ]])],
+ [eval "$gl_fnmatch_cache_var=yes"],
+ [eval "$gl_fnmatch_cache_var=no"],
+ [case "$host_os" in
+ # Guess yes on musl systems.
+ *-musl*) 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/src/grep/m4/fnmatch_h.m4 b/src/grep/m4/fnmatch_h.m4
new file mode 100644
index 0000000..e9bcb66
--- /dev/null
+++ b/src/grep/m4/fnmatch_h.m4
@@ -0,0 +1,90 @@
+# fnmatch_h.m4 serial 7
+dnl Copyright (C) 2009-2021 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 $ac_cv_header_fnmatch_h = yes; then
+ HAVE_FNMATCH_H=1
+ else
+ HAVE_FNMATCH_H=0
+ fi
+ AC_SUBST([HAVE_FNMATCH_H])
+
+ m4_ifdef([gl_POSIXCHECK],
+ [FNMATCH_H=fnmatch.h],
+ [FNMATCH_H=''
+ if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then
+ dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE.
+ FNMATCH_H=fnmatch.h
+ else
+ if test $ac_cv_header_fnmatch_h != yes; then
+ dnl Provide a substitute <fnmatch.h> file.
+ FNMATCH_H=fnmatch.h
+ fi
+ fi
+ ])
+ AC_SUBST([FNMATCH_H])
+ AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_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 <fnmatch.h>
+ ]],
+ [fnmatch])
+])
+
+dnl Unconditionally enables the replacement of <fnmatch.h>.
+AC_DEFUN([gl_REPLACE_FNMATCH_H],
+[
+ gl_FNMATCH_H_REQUIRE_DEFAULTS
+ FNMATCH_H='fnmatch.h'
+ AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"])
+])
+
+# 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([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_FNMATCH_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FNMATCH])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_FNMATCH_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_FNMATCH_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_FNMATCH_H_DEFAULTS],
+[
+ dnl Assume POSIX behavior unless another module says otherwise.
+ HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH])
+ REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH])
+])
diff --git a/src/grep/m4/fopen.m4 b/src/grep/m4/fopen.m4
new file mode 100644
index 0000000..4ed7dce
--- /dev/null
+++ b/src/grep/m4/fopen.m4
@@ -0,0 +1,148 @@
+# fopen.m4 serial 12
+dnl Copyright (C) 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_FOPEN],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw* | pw*)
+ dnl Replace fopen, for handling of "/dev/null".
+ REPLACE_FOPEN=1
+ dnl fopen on mingw also has the trailing slash bug.
+ gl_cv_func_fopen_slash="guessing no"
+ ;;
+ *)
+ dnl fopen("foo/", "w") should not create a file when the file name has a
+ dnl trailing slash.
+ AC_CACHE_CHECK([whether fopen recognizes a trailing slash],
+ [gl_cv_func_fopen_slash],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stddef.h>
+#include <stdio.h>
+int main ()
+{
+ FILE *fp = fopen ("conftest.sl/", "w");
+ int result = (fp != NULL);
+ if (fp != NULL)
+ fclose (fp);
+ return result;
+}]])],
+ [gl_cv_func_fopen_slash=yes],
+ [gl_cv_func_fopen_slash=no],
+ [
+changequote(,)dnl
+ case "$host_os" in
+ aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*)
+ gl_cv_func_fopen_slash="guessing no" ;;
+ *)
+ gl_cv_func_fopen_slash="guessing yes" ;;
+ esac
+changequote([,])dnl
+ ])
+ rm -f conftest.sl
+ ])
+ ;;
+ esac
+ case "$gl_cv_func_fopen_slash" in
+ *no)
+ AC_DEFINE([FOPEN_TRAILING_SLASH_BUG], [1],
+ [Define to 1 if fopen() fails to recognize a trailing slash.])
+ REPLACE_FOPEN=1
+ ;;
+ esac
+])
+
+AC_DEFUN([gl_FUNC_FOPEN_GNU],
+[
+ AC_REQUIRE([gl_FUNC_FOPEN])
+ AC_CACHE_CHECK([whether fopen supports the mode character 'x'],
+ [gl_cv_func_fopen_mode_x],
+ [rm -f conftest.x
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <errno.h>
+int main ()
+{
+ FILE *fp;
+ fp = fopen ("conftest.x", "w");
+ fclose (fp);
+ fp = fopen ("conftest.x", "wx");
+ if (fp != NULL)
+ /* 'x' ignored */
+ return 1;
+ else if (errno == EEXIST)
+ return 0;
+ else
+ /* 'x' rejected */
+ return 2;
+}]])],
+ [gl_cv_func_fopen_mode_x=yes],
+ [gl_cv_func_fopen_mode_x=no],
+ [case "$host_os" in
+ # Guess yes on glibc and musl systems.
+ linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*)
+ gl_cv_func_fopen_mode_x="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *)
+ gl_cv_func_fopen_mode_x="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.x
+ ])
+ AC_CACHE_CHECK([whether fopen supports the mode character 'e'],
+ [gl_cv_func_fopen_mode_e],
+ [echo foo > conftest.x
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+]GL_MDA_DEFINES[
+int main ()
+{
+ FILE *fp = fopen ("conftest.x", "re");
+ if (fp != NULL)
+ {
+ if (fcntl (fileno (fp), F_GETFD) & FD_CLOEXEC)
+ return 0;
+ else
+ /* 'e' ignored */
+ return 1;
+ }
+ else
+ /* 'e' rejected */
+ return 2;
+}]])],
+ [gl_cv_func_fopen_mode_e=yes],
+ [gl_cv_func_fopen_mode_e=no],
+ [case "$host_os" in
+ # Guess yes on glibc and musl systems.
+ linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*)
+ gl_cv_func_fopen_mode_e="guessing yes" ;;
+ # Guess no on native Windows.
+ mingw*)
+ gl_cv_func_fopen_mode_e="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *)
+ gl_cv_func_fopen_mode_e="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.x
+ ])
+ case "$gl_cv_func_fopen_mode_x" in
+ *no) REPLACE_FOPEN=1 ;;
+ esac
+ case "$gl_cv_func_fopen_mode_e" in
+ *no) REPLACE_FOPEN=1 ;;
+ esac
+])
+
+# Prerequisites of lib/fopen.c.
+AC_DEFUN([gl_PREREQ_FOPEN], [:])
diff --git a/src/grep/m4/fpending.m4 b/src/grep/m4/fpending.m4
new file mode 100644
index 0000000..131356a
--- /dev/null
+++ b/src/grep/m4/fpending.m4
@@ -0,0 +1,36 @@
+# serial 23
+
+# Copyright (C) 2000-2001, 2004-2021 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
+dnl Using code from emacs, based on suggestions from Paul Eggert
+dnl and Ulrich Drepper.
+
+dnl Find out how to determine the number of pending output bytes on a stream.
+dnl glibc (2.1.93 and newer) and Solaris provide __fpending. On other systems,
+dnl we have to grub around in the (possibly opaque) FILE struct.
+
+AC_DEFUN([gl_FUNC_FPENDING],
+[
+ AC_CHECK_HEADERS_ONCE([stdio_ext.h])
+ fp_headers='
+ #include <stdio.h>
+ #if HAVE_STDIO_EXT_H
+ # include <stdio_ext.h>
+ #endif
+ '
+ AC_CACHE_CHECK([for __fpending], [gl_cv_func___fpending],
+ [
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[$fp_headers]],
+ [[return ! __fpending (stdin);]])],
+ [gl_cv_func___fpending=yes],
+ [gl_cv_func___fpending=no])
+ ])
+ if test $gl_cv_func___fpending = yes; then
+ AC_CHECK_DECLS([__fpending], [], [], [$fp_headers])
+ fi
+])
diff --git a/src/grep/m4/fpieee.m4 b/src/grep/m4/fpieee.m4
new file mode 100644
index 0000000..3f16957
--- /dev/null
+++ b/src/grep/m4/fpieee.m4
@@ -0,0 +1,54 @@
+# fpieee.m4 serial 2 -*- coding: utf-8 -*-
+dnl Copyright (C) 2007, 2009-2021 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 IEEE 754 standardized three items:
+dnl - The formats of single-float and double-float - nowadays commonly
+dnl available as 'float' and 'double' in C and C++.
+dnl No autoconf test needed.
+dnl - The overflow and division by zero behaviour: The result are values
+dnl '±Inf' and 'NaN', rather than exceptions as it was before.
+dnl This file provides an autoconf macro for ensuring this behaviour of
+dnl floating-point operations.
+dnl - A set of conditions (overflow, underflow, inexact, etc.) which can
+dnl be configured to trigger an exception.
+dnl This cannot be done in a portable way: it depends on the compiler,
+dnl libc, kernel, and CPU. No autoconf macro is provided for this.
+
+dnl Ensure non-trapping behaviour of floating-point overflow and
+dnl floating-point division by zero.
+dnl (For integer overflow, see gcc's -ftrapv option; for integer division by
+dnl zero, see the autoconf macro in intdiv0.m4.)
+
+AC_DEFUN([gl_FP_IEEE],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ # IEEE behaviour is the default on all CPUs except Alpha and SH
+ # (according to the test results of Bruno Haible's ieeefp/fenv_default.m4
+ # and the GCC 4.1.2 manual).
+ case "$host_cpu" in
+ alpha*)
+ # On Alpha systems, a compiler option provides the behaviour.
+ # See the ieee(3) manual page, also available at
+ # <https://backdrift.org/man/tru64/man3/ieee.3.html>
+ if test -n "$GCC"; then
+ # GCC has the option -mieee.
+ # For full IEEE compliance (rarely needed), use option -mieee-with-inexact.
+ CPPFLAGS="$CPPFLAGS -mieee"
+ else
+ # Compaq (ex-DEC) C has the option -ieee, equivalent to -ieee_with_no_inexact.
+ # For full IEEE compliance (rarely needed), use option -ieee_with_inexact.
+ CPPFLAGS="$CPPFLAGS -ieee"
+ fi
+ ;;
+ sh*)
+ if test -n "$GCC"; then
+ # GCC has the option -mieee.
+ CPPFLAGS="$CPPFLAGS -mieee"
+ fi
+ ;;
+ esac
+])
diff --git a/src/grep/m4/free.m4 b/src/grep/m4/free.m4
new file mode 100644
index 0000000..a7923b9
--- /dev/null
+++ b/src/grep/m4/free.m4
@@ -0,0 +1,52 @@
+# free.m4 serial 6
+# Copyright (C) 2003-2005, 2009-2021 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 $gl_cv_func_free_preserves_errno in
+ *yes)
+ AC_DEFINE([HAVE_FREE_POSIX], [1],
+ [Define if the 'free' function is guaranteed to preserve errno.])
+ ;;
+ *) REPLACE_FREE=1 ;;
+ esac
+])
+
+# Prerequisites of lib/free.c.
+AC_DEFUN([gl_PREREQ_FREE], [:])
diff --git a/src/grep/m4/fstat.m4 b/src/grep/m4/fstat.m4
new file mode 100644
index 0000000..cdaca80
--- /dev/null
+++ b/src/grep/m4/fstat.m4
@@ -0,0 +1,40 @@
+# fstat.m4 serial 8
+dnl Copyright (C) 2011-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_FSTAT],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
+
+ case "$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/src/grep/m4/fstatat.m4 b/src/grep/m4/fstatat.m4
new file mode 100644
index 0000000..d730e46
--- /dev/null
+++ b/src/grep/m4/fstatat.m4
@@ -0,0 +1,65 @@
+# fstatat.m4 serial 4
+dnl Copyright (C) 2004-2021 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/src/grep/m4/ftruncate.m4 b/src/grep/m4/ftruncate.m4
new file mode 100644
index 0000000..4a3eca6
--- /dev/null
+++ b/src/grep/m4/ftruncate.m4
@@ -0,0 +1,40 @@
+# serial 21
+
+# See if we need to emulate a missing ftruncate function using _chsize.
+
+# Copyright (C) 2000-2001, 2003-2007, 2009-2021 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_FTRUNCATE],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_CHECK_FUNCS_ONCE([ftruncate])
+ if test $ac_cv_func_ftruncate = yes; then
+ m4_ifdef([gl_LARGEFILE], [
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ dnl Native Windows, and Large File Support is requested.
+ dnl The MSVCRT _chsize() function only accepts a 32-bit file size,
+ dnl and the mingw64 ftruncate64() function is unreliable (it may
+ dnl delete the file, see
+ dnl <https://web.archive.org/web/20160425005423/http://mingw-w64.sourcearchive.com/documentation/2.0-1/ftruncate64_8c_source.html>).
+ dnl Use gnulib's ftruncate() implementation instead.
+ REPLACE_FTRUNCATE=1
+ ;;
+ esac
+ ], [
+ :
+ ])
+ else
+ HAVE_FTRUNCATE=0
+ fi
+])
+
+# Prerequisites of lib/ftruncate.c.
+AC_DEFUN([gl_PREREQ_FTRUNCATE],
+[
+ AC_CHECK_FUNCS([_chsize])
+])
diff --git a/src/grep/m4/fts.m4 b/src/grep/m4/fts.m4
new file mode 100644
index 0000000..44dfaa5
--- /dev/null
+++ b/src/grep/m4/fts.m4
@@ -0,0 +1,49 @@
+#serial 22
+dnl Copyright (C) 2005-2021 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_FTS],
+[
+ gl_FUNC_FTS_CORE
+])
+
+AC_DEFUN([gl_FUNC_FTS_CORE],
+[
+ dnl Prerequisites of lib/fts.c.
+ gl_FUNC_OPENAT
+
+ AC_CHECK_FUNCS_ONCE([fstatfs])
+ AC_CHECK_HEADERS_ONCE([sys/param.h sys/vfs.h])dnl
+ if test "$ac_cv_func_fstatfs,$ac_cv_header_sys_vfs_h" = yes,yes; then
+ AC_CHECK_MEMBERS([struct statfs.f_type], [], [],
+ [[$ac_includes_default
+ #include <sys/vfs.h>
+ ]])
+ if test "$ac_cv_member_struct_statfs_f_type" = yes; then
+ AC_CHECK_TYPES([__fsword_t], [], [],
+ [[$ac_includes_default
+ #include <sys/vfs.h>
+ ]])
+ fi
+ fi
+
+ AC_CHECK_FUNC([fts_open])
+ if test $ac_cv_func_fts_open = yes; then
+ dnl The system already has the symbols fts_open, etc.
+ dnl Avoid conflicts between these symbols and ours at the linker level.
+ AC_DEFINE([fts_open], [rpl_fts_open],
+ [Define to the overridden function name])
+ AC_DEFINE([fts_close], [rpl_fts_close],
+ [Define to the overridden function name])
+ AC_DEFINE([fts_read], [rpl_fts_read],
+ [Define to the overridden function name])
+ AC_DEFINE([fts_set], [rpl_fts_set],
+ [Define to the overridden function name])
+ AC_DEFINE([fts_children], [rpl_fts_children],
+ [Define to the overridden function name])
+ AC_DEFINE([fts_cross_check], [rpl_fts_cross_check],
+ [Define to the overridden function name])
+ fi
+])
diff --git a/src/grep/m4/getcwd.m4 b/src/grep/m4/getcwd.m4
new file mode 100644
index 0000000..6ec7a94
--- /dev/null
+++ b/src/grep/m4/getcwd.m4
@@ -0,0 +1,166 @@
+# getcwd.m4 - check for working getcwd that is compatible with glibc
+
+# Copyright (C) 2001, 2003-2007, 2009-2021 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 19
+
+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 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/src/grep/m4/getdtablesize.m4 b/src/grep/m4/getdtablesize.m4
new file mode 100644
index 0000000..8fbc941
--- /dev/null
+++ b/src/grep/m4/getdtablesize.m4
@@ -0,0 +1,63 @@
+# getdtablesize.m4 serial 8
+dnl Copyright (C) 2008-2021 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/src/grep/m4/getopt.m4 b/src/grep/m4/getopt.m4
new file mode 100644
index 0000000..bb95c5e
--- /dev/null
+++ b/src/grep/m4/getopt.m4
@@ -0,0 +1,381 @@
+# getopt.m4 serial 47
+dnl Copyright (C) 2002-2006, 2008-2021 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
+ ])
+ 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.])
+ GETOPT_H=getopt.h
+ GETOPT_CDEFS_H=getopt-cdefs.h
+ AC_SUBST([GETOPT_H])
+ AC_SUBST([GETOPT_CDEFS_H])
+])
diff --git a/src/grep/m4/getpagesize.m4 b/src/grep/m4/getpagesize.m4
new file mode 100644
index 0000000..7e61801
--- /dev/null
+++ b/src/grep/m4/getpagesize.m4
@@ -0,0 +1,49 @@
+# getpagesize.m4 serial 10
+dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2021 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/src/grep/m4/getprogname.m4 b/src/grep/m4/getprogname.m4
new file mode 100644
index 0000000..65917d6
--- /dev/null
+++ b/src/grep/m4/getprogname.m4
@@ -0,0 +1,43 @@
+# getprogname.m4 - check for getprogname or replacements for it
+
+# Copyright (C) 2016-2021 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 4
+
+AC_DEFUN([gl_FUNC_GETPROGNAME],
+[
+ AC_CHECK_FUNCS_ONCE([getprogname getexecname])
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+ 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/src/grep/m4/gettext.m4 b/src/grep/m4/gettext.m4
new file mode 100644
index 0000000..8d1f066
--- /dev/null
+++ b/src/grep/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/src/grep/m4/gettimeofday.m4 b/src/grep/m4/gettimeofday.m4
new file mode 100644
index 0000000..37c5440
--- /dev/null
+++ b/src/grep/m4/gettimeofday.m4
@@ -0,0 +1,69 @@
+# serial 29
+
+# Copyright (C) 2001-2003, 2005, 2007, 2009-2021 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/src/grep/m4/gnulib-common.m4 b/src/grep/m4/gnulib-common.m4
new file mode 100644
index 0000000..c801b3d
--- /dev/null
+++ b/src/grep/m4/gnulib-common.m4
@@ -0,0 +1,827 @@
+# gnulib-common.m4 serial 67
+dnl Copyright (C) 2007-2021 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([_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 __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__ \
+ || 3 < __clang_major__ + (5 <= __clang_minor__)))
+# 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
+
+#ifdef __has_c_attribute
+# define _GL_HAS_C_ATTRIBUTE(attr) __has_c_attribute (__##attr##__)
+#else
+# define _GL_HAS_C_ATTRIBUTE(attr) 0
+#endif
+
+]dnl There is no _GL_ATTRIBUTE_ALIGNED; use stdalign's _Alignas instead.
+[
+#if _GL_HAS_ATTRIBUTE (alloc_size)
+# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
+#else
+# define _GL_ATTRIBUTE_ALLOC_SIZE(args)
+#endif
+
+#if _GL_HAS_ATTRIBUTE (always_inline)
+# define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__))
+#else
+# define _GL_ATTRIBUTE_ALWAYS_INLINE
+#endif
+
+#if _GL_HAS_ATTRIBUTE (artificial)
+# define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__))
+#else
+# define _GL_ATTRIBUTE_ARTIFICIAL
+#endif
+
+/* 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__'. */
+#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
+
+#if _GL_HAS_ATTRIBUTE (const)
+# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
+#else
+# define _GL_ATTRIBUTE_CONST
+#endif
+
+/* _GL_ATTRIBUTE_DEALLOC (F, I) is for functions returning pointers
+ that can be freed by passing them as the Ith argument to the
+ function F. _GL_ATTRIBUTE_DEALLOC_FREE is for functions that
+ return pointers that can be freed via 'free'; it can be used
+ only after including stdlib.h. These macros cannot be used on
+ inline functions. */
+#if _GL_GNUC_PREREQ (11, 0)
+# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
+#else
+# define _GL_ATTRIBUTE_DEALLOC(f, i)
+#endif
+#define _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_DEALLOC (free, 1)
+
+#if _GL_HAS_C_ATTRIBUTE (deprecated)
+# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]]
+#elif _GL_HAS_ATTRIBUTE (deprecated)
+# define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
+#else
+# define _GL_ATTRIBUTE_DEPRECATED
+#endif
+
+#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
+
+#if _GL_HAS_ATTRIBUTE (externally_visible)
+# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible))
+#else
+# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE
+#endif
+
+/* FALLTHROUGH is special, because it always expands to something. */
+#if _GL_HAS_C_ATTRIBUTE (fallthrough)
+# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]]
+#elif _GL_HAS_ATTRIBUTE (fallthrough)
+# define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__))
+#else
+# define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0)
+#endif
+
+#if _GL_HAS_ATTRIBUTE (format)
+# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
+#else
+# define _GL_ATTRIBUTE_FORMAT(spec)
+#endif
+
+#if _GL_HAS_ATTRIBUTE (leaf)
+# define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__))
+#else
+# define _GL_ATTRIBUTE_LEAF
+#endif
+
+#if _GL_HAS_ATTRIBUTE (malloc)
+# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+#else
+# define _GL_ATTRIBUTE_MALLOC
+#endif
+
+/* Oracle Studio 12.6 mishandles may_alias despite __has_attribute OK. */
+#if _GL_HAS_ATTRIBUTE (may_alias) && !defined __SUNPRO_C
+# define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__))
+#else
+# define _GL_ATTRIBUTE_MAY_ALIAS
+#endif
+
+#if _GL_HAS_C_ATTRIBUTE (maybe_unused)
+# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
+#else
+# define _GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_UNUSED
+#endif
+/* Earlier spellings of this macro. */
+#define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED
+
+#if _GL_HAS_C_ATTRIBUTE (nodiscard)
+# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]]
+#elif _GL_HAS_ATTRIBUTE (warn_unused_result)
+# define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__))
+#else
+# define _GL_ATTRIBUTE_NODISCARD
+#endif
+
+#if _GL_HAS_ATTRIBUTE (noinline)
+# define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__))
+#else
+# define _GL_ATTRIBUTE_NOINLINE
+#endif
+
+#if _GL_HAS_ATTRIBUTE (nonnull)
+# define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args))
+#else
+# define _GL_ATTRIBUTE_NONNULL(args)
+#endif
+
+#if _GL_HAS_ATTRIBUTE (nonstring)
+# define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__))
+#else
+# define _GL_ATTRIBUTE_NONSTRING
+#endif
+
+/* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */
+
+#if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus
+# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__))
+#else
+# define _GL_ATTRIBUTE_NOTHROW
+#endif
+
+#if _GL_HAS_ATTRIBUTE (packed)
+# define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__))
+#else
+# define _GL_ATTRIBUTE_PACKED
+#endif
+
+#if _GL_HAS_ATTRIBUTE (pure)
+# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
+#else
+# define _GL_ATTRIBUTE_PURE
+#endif
+
+#if _GL_HAS_ATTRIBUTE (returns_nonnull)
+# define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__))
+#else
+# define _GL_ATTRIBUTE_RETURNS_NONNULL
+#endif
+
+#if _GL_HAS_ATTRIBUTE (sentinel)
+# define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos))
+#else
+# define _GL_ATTRIBUTE_SENTINEL(pos)
+#endif
+
+#if _GL_HAS_ATTRIBUTE (unused)
+# define _GL_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#else
+# define _GL_ATTRIBUTE_UNUSED
+#endif
+/* Earlier spellings of this macro. */
+#define _GL_UNUSED _GL_ATTRIBUTE_UNUSED
+
+]dnl There is no _GL_ATTRIBUTE_VISIBILITY; see m4/visibility.m4 instead.
+[
+/* To support C++ as well as C, use _GL_UNUSED_LABEL with trailing ';'. */
+#if !defined __cplusplus || _GL_GNUC_PREREQ (4, 5)
+# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_UNUSED
+#else
+# define _GL_UNUSED_LABEL
+#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_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="$gl_cv_cxx_wallow" ;;
+ esac
+ else
+ GL_CXXFLAG_ALLOW_WARNINGS=''
+ fi
+ AC_SUBST([GL_CXXFLAG_ALLOW_WARNINGS])
+])
+
+dnl Expands to some code for use in .c programs that, on native Windows, defines
+dnl the Microsoft deprecated alias function names to the underscore-prefixed
+dnl actual function names. With this macro, these function names are available
+dnl without linking with '-loldnames' and without generating warnings.
+dnl Usage: Use it after all system header files are included.
+dnl #include <...>
+dnl #include <...>
+dnl ]GL_MDA_DEFINES[
+dnl ...
+AC_DEFUN([GL_MDA_DEFINES],[
+AC_REQUIRE([_GL_MDA_DEFINES])
+[$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/src/grep/m4/gnulib-comp.m4 b/src/grep/m4/gnulib-comp.m4
new file mode 100644
index 0000000..cda87e0
--- /dev/null
+++ b/src/grep/m4/gnulib-comp.m4
@@ -0,0 +1,2623 @@
+# DO NOT EDIT! GENERATED AUTOMATICALLY!
+# Copyright (C) 2002-2021 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])
+
+ AC_REQUIRE([AM_PROG_CC_C_O])
+ # Code from module absolute-header:
+ # Code from module accept:
+ # Code from module accept-tests:
+ # Code from module alignof:
+ # Code from module alignof-tests:
+ # Code from module alloca:
+ # Code from module alloca-opt:
+ # Code from module alloca-opt-tests:
+ # Code from module announce-gen:
+ # Code from module argmatch:
+ # Code from module argmatch-tests:
+ # Code from module arpa_inet:
+ # Code from module arpa_inet-tests:
+ # Code from module assert:
+ # Code from module assure:
+ # Code from module at-internal:
+ # Code from module attribute:
+ # Code from module basename-lgpl:
+ # Code from module binary-io:
+ # Code from module binary-io-tests:
+ # Code from module bind:
+ # Code from module bind-tests:
+ # Code from module bitrotate:
+ # Code from module bitrotate-tests:
+ # Code from module btowc:
+ # Code from module btowc-tests:
+ # Code from module builtin-expect:
+ # Code from module c-ctype:
+ # Code from module c-ctype-tests:
+ # Code from module c-stack:
+ # Code from module c-stack-tests:
+ # Code from module c-strcase:
+ # Code from module c-strcase-tests:
+ # Code from module c-strcaseeq:
+ # Code from module c99:
+ # Code from module calloc-gnu:
+ # Code from module calloc-gnu-tests:
+ # Code from module calloc-posix:
+ # Code from module chdir:
+ # Code from module chdir-long:
+ # Code from module chdir-tests:
+ # Code from module cloexec:
+ # Code from module cloexec-tests:
+ # Code from module close:
+ # Code from module close-stream:
+ # Code from module close-tests:
+ # Code from module closedir:
+ # Code from module closeout:
+ # Code from module configmake:
+ # Code from module connect:
+ # Code from module connect-tests:
+ # Code from module ctype:
+ # Code from module ctype-tests:
+ # Code from module cycle-check:
+ # Code from module d-ino:
+ # Code from module d-type:
+ # Code from module dev-ino:
+ # Code from module dfa:
+ # Code from module dfa-tests:
+ # Code from module dirent:
+ # Code from module dirent-tests:
+ # Code from module dirfd:
+ # Code from module dirname-lgpl:
+ # Code from module do-release-commit-and-tag:
+ # Code from module double-slash-root:
+ # Code from module dup:
+ # Code from module dup-tests:
+ # Code from module dup2:
+ # Code from module dup2-tests:
+ # Code from module dynarray:
+ # Code from module dynarray-tests:
+ # Code from module environ:
+ # Code from module environ-tests:
+ # Code from module errno:
+ # Code from module errno-tests:
+ # Code from module error:
+ # Code from module exclude:
+ # Code from module exclude-tests:
+ # Code from module exitfail:
+ # Code from module extensions:
+ # Code from module extern-inline:
+ # Code from module fchdir:
+ # Code from module fchdir-tests:
+ # Code from module fcntl:
+ # Code from module fcntl-h:
+ # Code from module fcntl-h-tests:
+ # Code from module fcntl-safer:
+ # Code from module fcntl-safer-tests:
+ # Code from module fcntl-tests:
+ # Code from module fd-hook:
+ # Code from module fd-safer-flag:
+ # Code from module fdl:
+ # Code from module fdopen:
+ # Code from module fdopen-tests:
+ # Code from module fdopendir:
+ # Code from module fdopendir-tests:
+ # Code from module fgetc-tests:
+ # Code from module filename:
+ # Code from module filenamecat-lgpl:
+ # Code from module flexmember:
+ # Code from module float:
+ # Code from module float-tests:
+ # Code from module fnmatch:
+ # Code from module fnmatch-h:
+ # Code from module fnmatch-h-tests:
+ # Code from module fnmatch-tests:
+ # Code from module fopen:
+ # Code from module fopen-gnu:
+ # Code from module fopen-gnu-tests:
+ # Code from module fopen-tests:
+ # Code from module fpending:
+ # Code from module fpending-tests:
+ # Code from module fpieee:
+ AC_REQUIRE([gl_FP_IEEE])
+ # Code from module fpucw:
+ # Code from module fputc-tests:
+ # Code from module fread-tests:
+ # Code from module free-posix:
+ # Code from module free-posix-tests:
+ # Code from module fstat:
+ # Code from module fstat-tests:
+ # Code from module fstatat:
+ # Code from module fstatat-tests:
+ # Code from module ftruncate:
+ # Code from module ftruncate-tests:
+ # Code from module fts:
+ # Code from module fwrite-tests:
+ # Code from module gendocs:
+ # Code from module getcwd-lgpl:
+ # Code from module getcwd-lgpl-tests:
+ # Code from module getdtablesize:
+ # Code from module getdtablesize-tests:
+ # Code from module getopt-gnu:
+ # Code from module getopt-gnu-tests:
+ # Code from module getopt-posix:
+ # Code from module getopt-posix-tests:
+ # Code from module getpagesize:
+ # Code from module getprogname:
+ # Code from module getprogname-tests:
+ # Code from module gettext-h:
+ # Code from module gettimeofday:
+ # Code from module gettimeofday-tests:
+ # Code from module git-version-gen:
+ # Code from module gitlog-to-changelog:
+ # Code from module gnu-web-doc-update:
+ # Code from module gnumakefile:
+ # Code from module gnupload:
+ # Code from module gperf:
+ # Code from module hard-locale:
+ # Code from module hard-locale-tests:
+ # Code from module hash:
+ # Code from module hash-pjw:
+ # Code from module hash-tests:
+ # Code from module havelib:
+ # Code from module host-cpu-c-abi:
+ # Code from module i-ring:
+ # Code from module i-ring-tests:
+ # Code from module ialloc:
+ # Code from module iconv:
+ # Code from module iconv-h:
+ # Code from module iconv-h-tests:
+ # Code from module iconv-tests:
+ # Code from module iconv_open:
+ # Code from module idx:
+ # Code from module ignore-value:
+ # Code from module ignore-value-tests:
+ # Code from module include_next:
+ # Code from module inet_pton:
+ # Code from module inet_pton-tests:
+ # Code from module inline:
+ # Code from module intprops:
+ # Code from module intprops-tests:
+ # Code from module inttostr:
+ # Code from module inttostr-tests:
+ # Code from module inttypes:
+ # Code from module inttypes-incomplete:
+ # Code from module inttypes-tests:
+ # Code from module ioctl:
+ # Code from module ioctl-tests:
+ # Code from module isatty:
+ # Code from module isatty-tests:
+ # Code from module isblank:
+ # Code from module isblank-tests:
+ # Code from module iswblank:
+ # Code from module iswblank-tests:
+ # Code from module iswctype:
+ # Code from module iswdigit:
+ # Code from module iswdigit-tests:
+ # Code from module iswxdigit:
+ # Code from module iswxdigit-tests:
+ # Code from module langinfo:
+ # Code from module langinfo-tests:
+ # Code from module largefile:
+ AC_REQUIRE([AC_SYS_LARGEFILE])
+ AC_REQUIRE([gl_YEAR2038_EARLY])
+ # Code from module libc-config:
+ # Code from module limits-h:
+ # Code from module limits-h-tests:
+ # Code from module listen:
+ # Code from module listen-tests:
+ # Code from module localcharset:
+ # Code from module localcharset-tests:
+ # Code from module locale:
+ # Code from module locale-tests:
+ # Code from module localeconv:
+ # Code from module localeconv-tests:
+ # Code from module localename:
+ # Code from module localename-tests:
+ # Code from module lock:
+ # Code from module lseek:
+ # Code from module lseek-tests:
+ # Code from module lstat:
+ # Code from module lstat-tests:
+ # Code from module maintainer-makefile:
+ # Code from module malloc-gnu:
+ # Code from module malloc-gnu-tests:
+ # Code from module malloc-posix:
+ # Code from module malloca:
+ # Code from module malloca-tests:
+ # Code from module manywarnings:
+ # Code from module mbchar:
+ # Code from module mbiter:
+ # Code from module mbrlen:
+ # Code from module mbrtowc:
+ # Code from module mbscasecmp:
+ # Code from module mbscasecmp-tests:
+ # Code from module mbsinit:
+ # Code from module mbsinit-tests:
+ # Code from module mbslen:
+ # Code from module mbsrtowcs:
+ # Code from module mbsrtowcs-tests:
+ # Code from module mbsstr:
+ # Code from module mbsstr-tests:
+ # Code from module mbtowc:
+ # Code from module mbuiter:
+ # Code from module memchr:
+ # Code from module memchr-tests:
+ # Code from module memchr2:
+ # Code from module memchr2-tests:
+ # Code from module mempcpy:
+ # Code from module memrchr:
+ # Code from module memrchr-tests:
+ # Code from module minmax:
+ # Code from module msvc-inval:
+ # Code from module msvc-nothrow:
+ # Code from module multiarch:
+ # Code from module nanosleep:
+ # Code from module nanosleep-tests:
+ # Code from module netinet_in:
+ # Code from module netinet_in-tests:
+ # Code from module nl_langinfo:
+ # Code from module nl_langinfo-tests:
+ # Code from module nocrash:
+ # Code from module obstack:
+ # Code from module open:
+ # Code from module open-tests:
+ # Code from module openat:
+ # Code from module openat-die:
+ # Code from module openat-h:
+ # Code from module openat-safer:
+ # Code from module openat-safer-tests:
+ # Code from module openat-tests:
+ # Code from module opendir:
+ # Code from module opendirat:
+ # Code from module pathmax:
+ # Code from module pathmax-tests:
+ # Code from module perl:
+ # Code from module perror:
+ # Code from module perror-tests:
+ # Code from module pipe-posix:
+ # Code from module pipe-posix-tests:
+ # Code from module propername:
+ # Code from module pthread-h:
+ gl_ANYTHREADLIB_EARLY
+ # Code from module pthread-h-tests:
+ # Code from module pthread-thread:
+ # Code from module pthread-thread-tests:
+ # Code from module pthread_sigmask:
+ # Code from module pthread_sigmask-tests:
+ # Code from module putenv:
+ # Code from module quote:
+ # Code from module quotearg:
+ # Code from module quotearg-simple:
+ # Code from module quotearg-simple-tests:
+ # Code from module raise:
+ # Code from module raise-tests:
+ # Code from module rawmemchr:
+ # Code from module rawmemchr-tests:
+ # Code from module read:
+ # Code from module read-tests:
+ # Code from module readdir:
+ # Code from module readme-release:
+ # Code from module realloc-gnu:
+ # Code from module realloc-gnu-tests:
+ # Code from module realloc-posix:
+ # Code from module reallocarray:
+ # Code from module reallocarray-tests:
+ # Code from module regex:
+ # Code from module regex-tests:
+ # Code from module safe-read:
+ # Code from module same-inode:
+ # Code from module save-cwd:
+ # Code from module sched:
+ # Code from module sched-tests:
+ # Code from module select:
+ # Code from module select-tests:
+ # Code from module setenv:
+ # Code from module setenv-tests:
+ # Code from module setlocale:
+ # Code from module setlocale-null:
+ # Code from module setlocale-null-tests:
+ # Code from module setlocale-tests:
+ # Code from module setsockopt:
+ # Code from module setsockopt-tests:
+ # Code from module sigaction:
+ # Code from module sigaction-tests:
+ # Code from module signal-h:
+ # Code from module signal-h-tests:
+ # Code from module sigprocmask:
+ # Code from module sigprocmask-tests:
+ # Code from module sigsegv:
+ # Code from module sigsegv-tests:
+ # Code from module size_max:
+ # Code from module sleep:
+ # Code from module sleep-tests:
+ # 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 snprintf:
+ # Code from module snprintf-tests:
+ # Code from module socket:
+ # Code from module socketlib:
+ # Code from module sockets:
+ # Code from module sockets-tests:
+ # Code from module socklen:
+ # Code from module ssize_t:
+ # Code from module stat:
+ # Code from module stat-tests:
+ # Code from module stat-time:
+ # Code from module stat-time-tests:
+ # Code from module std-gnu11:
+ # Code from module stdalign:
+ # Code from module stdalign-tests:
+ # 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 stdarg-tests:
+ # Code from module stdbool:
+ # Code from module stdbool-tests:
+ # Code from module stddef:
+ # Code from module stddef-tests:
+ # Code from module stdint:
+ # Code from module stdint-tests:
+ # Code from module stdio:
+ # Code from module stdio-tests:
+ # Code from module stdlib:
+ # Code from module stdlib-tests:
+ # Code from module stpcpy:
+ # Code from module strdup-posix:
+ # Code from module streq:
+ # Code from module strerror:
+ # Code from module strerror-override:
+ # Code from module strerror-tests:
+ # Code from module strerror_r-posix:
+ # Code from module strerror_r-posix-tests:
+ # Code from module striconv:
+ # Code from module striconv-tests:
+ # Code from module string:
+ # Code from module string-tests:
+ # Code from module strnlen:
+ # Code from module strnlen-tests:
+ # Code from module strnlen1:
+ # Code from module strstr:
+ # Code from module strstr-simple:
+ # Code from module strstr-tests:
+ # Code from module strtoimax:
+ # Code from module strtoimax-tests:
+ # Code from module strtoll:
+ # Code from module strtoll-tests:
+ # Code from module strtoull:
+ # Code from module strtoull-tests:
+ # Code from module strtoumax:
+ # Code from module strtoumax-tests:
+ # Code from module symlink:
+ # Code from module symlink-tests:
+ # Code from module sys_ioctl:
+ # Code from module sys_ioctl-tests:
+ # Code from module sys_select:
+ # Code from module sys_select-tests:
+ # Code from module sys_socket:
+ # Code from module sys_socket-tests:
+ # Code from module sys_stat:
+ # Code from module sys_stat-tests:
+ # Code from module sys_time:
+ # Code from module sys_time-tests:
+ # Code from module sys_types:
+ # Code from module sys_types-tests:
+ # Code from module sys_uio:
+ # Code from module sys_uio-tests:
+ # Code from module test-framework-sh:
+ # Code from module test-framework-sh-tests:
+ # Code from module thread:
+ # Code from module thread-optim:
+ # Code from module thread-tests:
+ # Code from module threadlib:
+ gl_THREADLIB_EARLY
+ # Code from module time:
+ # Code from module time-tests:
+ # Code from module trim:
+ # Code from module unistd:
+ # Code from module unistd-safer:
+ # Code from module unistd-safer-tests:
+ # Code from module unistd-tests:
+ # Code from module unistr/base:
+ # Code from module unistr/u8-mbtoucr:
+ # Code from module unistr/u8-mbtoucr-tests:
+ # Code from module unistr/u8-uctomb:
+ # Code from module unistr/u8-uctomb-tests:
+ # Code from module unitypes:
+ # Code from module uniwidth/base:
+ # Code from module uniwidth/width:
+ # Code from module uniwidth/width-tests:
+ # Code from module unlocked-io:
+ # Code from module unlocked-io-internal:
+ # Code from module unsetenv:
+ # Code from module unsetenv-tests:
+ # Code from module update-copyright:
+ # Code from module useless-if-before-free:
+ # Code from module vasnprintf:
+ # Code from module vasnprintf-tests:
+ # Code from module vc-list-files:
+ # Code from module vc-list-files-tests:
+ # Code from module verify:
+ # Code from module verify-tests:
+ # Code from module version-etc:
+ # Code from module version-etc-fsf:
+ # Code from module version-etc-tests:
+ # Code from module warnings:
+ # Code from module wchar:
+ # Code from module wchar-tests:
+ # Code from module wcrtomb:
+ # Code from module wcrtomb-tests:
+ # Code from module wctob:
+ # Code from module wctomb:
+ # Code from module wctype-h:
+ # Code from module wctype-h-tests:
+ # Code from module wcwidth:
+ # Code from module wcwidth-tests:
+ # Code from module windows-mutex:
+ # Code from module windows-once:
+ # Code from module windows-recmutex:
+ # Code from module windows-rwlock:
+ # Code from module windows-stat-inodes:
+ # Code from module windows-stat-override:
+ # Code from module windows-thread:
+ # Code from module windows-tls:
+ # Code from module wmemchr:
+ # Code from module wmempcpy:
+ # Code from module xalloc:
+ # Code from module xalloc-die:
+ # Code from module xalloc-die-tests:
+ # Code from module xalloc-oversized:
+ # Code from module xbinary-io:
+ # Code from module xsize:
+ # Code from module xstriconv:
+ # Code from module xstrtoimax:
+ # Code from module xstrtoimax-tests:
+ # Code from module xstrtol:
+ # Code from module xstrtol-error:
+ # Code from module xstrtol-tests:
+])
+
+# This macro should be invoked from ./configure.ac, in the section
+# "Check for header files, types and library functions".
+AC_DEFUN([gl_INIT],
+[
+ AM_CONDITIONAL([GL_COND_LIBTOOL], [false])
+ gl_cond_libtool=false
+ gl_libdeps=
+ gl_ltlibdeps=
+ gl_m4_base='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='lib'
+ gl_FUNC_ALLOCA
+ gl_ASSERT
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ gl_FUNC_BTOWC
+ if test $HAVE_BTOWC = 0 || test $REPLACE_BTOWC = 1; then
+ AC_LIBOBJ([btowc])
+ gl_PREREQ_BTOWC
+ fi
+ gl_WCHAR_MODULE_INDICATOR([btowc])
+ gl___BUILTIN_EXPECT
+ gl_C_STACK
+ gl_FUNC_CALLOC_GNU
+ if test $REPLACE_CALLOC = 1; then
+ AC_LIBOBJ([calloc])
+ fi
+ gl_FUNC_CALLOC_POSIX
+ if test $REPLACE_CALLOC = 1; then
+ AC_LIBOBJ([calloc])
+ fi
+ gl_STDLIB_MODULE_INDICATOR([calloc-posix])
+ gl_UNISTD_MODULE_INDICATOR([chdir])
+ gl_FUNC_CHDIR_LONG
+ if test $gl_cv_have_unlimited_file_name_length = no; then
+ AC_LIBOBJ([chdir-long])
+ gl_PREREQ_CHDIR_LONG
+ fi
+ gl_MODULE_INDICATOR_FOR_TESTS([cloexec])
+ gl_FUNC_CLOSE
+ if test $REPLACE_CLOSE = 1; then
+ AC_LIBOBJ([close])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([close])
+ gl_MODULE_INDICATOR([close-stream])
+ gl_FUNC_CLOSEDIR
+ if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then
+ AC_LIBOBJ([closedir])
+ fi
+ gl_DIRENT_MODULE_INDICATOR([closedir])
+ gl_CONFIGMAKE_PREP
+ gl_CTYPE_H
+ gl_CTYPE_H_REQUIRE_DEFAULTS
+ gl_CYCLE_CHECK
+ gl_CHECK_TYPE_STRUCT_DIRENT_D_INO
+ gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE
+ AC_REQUIRE([AC_C_INLINE])
+ gl_DIRENT_H
+ gl_DIRENT_H_REQUIRE_DEFAULTS
+ gl_FUNC_DIRFD
+ if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no \
+ || test $REPLACE_DIRFD = 1; then
+ AC_LIBOBJ([dirfd])
+ gl_PREREQ_DIRFD
+ fi
+ gl_DIRENT_MODULE_INDICATOR([dirfd])
+ gl_DOUBLE_SLASH_ROOT
+ gl_FUNC_DUP
+ if test $REPLACE_DUP = 1; then
+ AC_LIBOBJ([dup])
+ gl_PREREQ_DUP
+ fi
+ gl_UNISTD_MODULE_INDICATOR([dup])
+ gl_FUNC_DUP2
+ if test $REPLACE_DUP2 = 1; then
+ AC_LIBOBJ([dup2])
+ gl_PREREQ_DUP2
+ fi
+ gl_UNISTD_MODULE_INDICATOR([dup2])
+ AC_PROG_MKDIR_P
+ gl_HEADER_ERRNO_H
+ gl_ERROR
+ if test $ac_cv_lib_error_at_line = no; then
+ AC_LIBOBJ([error])
+ gl_PREREQ_ERROR
+ fi
+ m4_ifdef([AM_XGETTEXT_OPTION],
+ [AM_][XGETTEXT_OPTION([--flag=error:3:c-format])
+ AM_][XGETTEXT_OPTION([--flag=error_at_line:5:c-format])])
+ AC_REQUIRE([gl_EXTERN_INLINE])
+ gl_FUNC_FCHDIR
+ gl_UNISTD_MODULE_INDICATOR([fchdir])
+ gl_FUNC_FCNTL
+ if test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1; then
+ AC_LIBOBJ([fcntl])
+ fi
+ gl_FCNTL_MODULE_INDICATOR([fcntl])
+ gl_FCNTL_H
+ gl_FCNTL_H_REQUIRE_DEFAULTS
+ gl_FCNTL_SAFER
+ gl_MODULE_INDICATOR([fcntl-safer])
+ gl_MODULE_INDICATOR([fd-safer-flag])
+ gl_FUNC_FDOPENDIR
+ if test $HAVE_FDOPENDIR = 0 || test $REPLACE_FDOPENDIR = 1; then
+ AC_LIBOBJ([fdopendir])
+ fi
+ gl_DIRENT_MODULE_INDICATOR([fdopendir])
+ gl_MODULE_INDICATOR([fdopendir])
+ gl_FILE_NAME_CONCAT_LGPL
+ AC_C_FLEXIBLE_ARRAY_MEMBER
+ gl_FUNC_FNMATCH_POSIX
+ if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then
+ AC_LIBOBJ([fnmatch])
+ gl_PREREQ_FNMATCH
+ fi
+ gl_FNMATCH_MODULE_INDICATOR([fnmatch])
+ gl_FNMATCH_H
+ gl_FNMATCH_H_REQUIRE_DEFAULTS
+ gl_FUNC_FOPEN
+ if test $REPLACE_FOPEN = 1; then
+ AC_LIBOBJ([fopen])
+ gl_PREREQ_FOPEN
+ fi
+ gl_STDIO_MODULE_INDICATOR([fopen])
+ gl_FUNC_FOPEN_GNU
+ if test $REPLACE_FOPEN = 1; then
+ AC_LIBOBJ([fopen])
+ gl_PREREQ_FOPEN
+ fi
+ gl_MODULE_INDICATOR([fopen-gnu])
+ gl_FUNC_FPENDING
+ if test $gl_cv_func___fpending = no; then
+ AC_LIBOBJ([fpending])
+ fi
+ gl_FUNC_FREE
+ if test $REPLACE_FREE = 1; then
+ AC_LIBOBJ([free])
+ gl_PREREQ_FREE
+ fi
+ gl_STDLIB_MODULE_INDICATOR([free-posix])
+ gl_FUNC_FSTAT
+ if test $REPLACE_FSTAT = 1; then
+ AC_LIBOBJ([fstat])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([stat-w32])
+ ;;
+ esac
+ gl_PREREQ_FSTAT
+ fi
+ gl_SYS_STAT_MODULE_INDICATOR([fstat])
+ gl_FUNC_FSTATAT
+ if test $HAVE_FSTATAT = 0 || test $REPLACE_FSTATAT = 1; then
+ AC_LIBOBJ([fstatat])
+ fi
+ gl_SYS_STAT_MODULE_INDICATOR([fstatat])
+ gl_FUNC_FTS
+ dnl Use this version of fts unconditionally, since the GNU libc and
+ dnl NetBSD versions have bugs and/or unnecessary limitations.
+ AC_LIBOBJ([fts])
+ gl_FUNC_GETCWD_LGPL
+ if test $REPLACE_GETCWD = 1; then
+ AC_LIBOBJ([getcwd-lgpl])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([getcwd])
+ gl_FUNC_GETDTABLESIZE
+ if test $HAVE_GETDTABLESIZE = 0 || test $REPLACE_GETDTABLESIZE = 1; then
+ AC_LIBOBJ([getdtablesize])
+ gl_PREREQ_GETDTABLESIZE
+ fi
+ gl_UNISTD_MODULE_INDICATOR([getdtablesize])
+ 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
+ if test $REPLACE_GETOPT = 1; then
+ AC_LIBOBJ([getopt])
+ AC_LIBOBJ([getopt1])
+ 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])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([getopt-posix])
+ gl_FUNC_GETPAGESIZE
+ if test $REPLACE_GETPAGESIZE = 1; then
+ AC_LIBOBJ([getpagesize])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([getpagesize])
+ gl_FUNC_GETPROGNAME
+ AC_SUBST([LIBINTL])
+ AC_SUBST([LTLIBINTL])
+ # Autoconf 2.61a.99 and earlier don't support linking a file only
+ # in VPATH builds. But since GNUmakefile is for maintainer use
+ # only, it does not matter if we skip the link with older autoconf.
+ # Automake 1.10.1 and earlier try to remove GNUmakefile in non-VPATH
+ # builds, so use a shell variable to bypass this.
+ GNUmakefile=GNUmakefile
+ m4_if(m4_version_compare([2.61a.100],
+ m4_defn([m4_PACKAGE_VERSION])), [1], [],
+ [AC_CONFIG_LINKS([$GNUmakefile:$GNUmakefile], [],
+ [GNUmakefile=$GNUmakefile])])
+ AC_REQUIRE([gl_FUNC_SETLOCALE_NULL])
+ LIB_HARD_LOCALE="$LIB_SETLOCALE_NULL"
+ AC_SUBST([LIB_HARD_LOCALE])
+ AC_DEFUN([gl_HAVE_MODULE_HAVELIB])
+ AC_REQUIRE([gl_HOST_CPU_C_ABI])
+ gl_I_RING
+ AM_ICONV
+ m4_ifdef([gl_ICONV_MODULE_INDICATOR],
+ [gl_ICONV_MODULE_INDICATOR([iconv])])
+ gl_ICONV_H
+ gl_ICONV_H_REQUIRE_DEFAULTS
+ gl_FUNC_ICONV_OPEN
+ if test $REPLACE_ICONV_OPEN = 1; then
+ AC_LIBOBJ([iconv_open])
+ fi
+ if test $REPLACE_ICONV = 1; then
+ AC_LIBOBJ([iconv])
+ AC_LIBOBJ([iconv_close])
+ fi
+ gl_INLINE
+ gl_INTTYPES_H
+ gl_INTTYPES_INCOMPLETE
+ gl_INTTYPES_H_REQUIRE_DEFAULTS
+ gl_FUNC_ISATTY
+ if test $REPLACE_ISATTY = 1; then
+ AC_LIBOBJ([isatty])
+ gl_PREREQ_ISATTY
+ fi
+ gl_UNISTD_MODULE_INDICATOR([isatty])
+ gl_FUNC_ISBLANK
+ if test $HAVE_ISBLANK = 0; then
+ AC_LIBOBJ([isblank])
+ fi
+ gl_MODULE_INDICATOR([isblank])
+ gl_CTYPE_MODULE_INDICATOR([isblank])
+ gl_FUNC_ISWBLANK
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ :
+ else
+ if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
+ AC_LIBOBJ([iswblank])
+ fi
+ fi
+ gl_WCTYPE_MODULE_INDICATOR([iswblank])
+ gl_FUNC_ISWCTYPE
+ if test $HAVE_WCTYPE_T = 0 || test $GNULIBHEADERS_OVERRIDE_WINT_T = 1; then
+ AC_LIBOBJ([iswctype])
+ fi
+ gl_WCTYPE_MODULE_INDICATOR([iswctype])
+ gl_FUNC_ISWDIGIT
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ :
+ else
+ if test $REPLACE_ISWDIGIT = 1; then
+ AC_LIBOBJ([iswdigit])
+ fi
+ fi
+ gl_WCTYPE_MODULE_INDICATOR([iswdigit])
+ gl_FUNC_ISWXDIGIT
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ :
+ else
+ if test $REPLACE_ISWXDIGIT = 1; then
+ AC_LIBOBJ([iswxdigit])
+ fi
+ fi
+ gl_WCTYPE_MODULE_INDICATOR([iswxdigit])
+ gl_LANGINFO_H
+ gl_LANGINFO_H_REQUIRE_DEFAULTS
+ AC_REQUIRE([gl_LARGEFILE])
+ gl___INLINE
+ gl_LIMITS_H
+ 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
+ gl_FUNC_LOCALECONV
+ if test $REPLACE_LOCALECONV = 1; then
+ AC_LIBOBJ([localeconv])
+ gl_PREREQ_LOCALECONV
+ fi
+ gl_LOCALE_MODULE_INDICATOR([localeconv])
+ gl_LOCK
+ gl_MODULE_INDICATOR([lock])
+ gl_FUNC_LSEEK
+ if test $REPLACE_LSEEK = 1; then
+ AC_LIBOBJ([lseek])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([lseek])
+ gl_FUNC_LSTAT
+ if test $REPLACE_LSTAT = 1; then
+ AC_LIBOBJ([lstat])
+ gl_PREREQ_LSTAT
+ fi
+ gl_SYS_STAT_MODULE_INDICATOR([lstat])
+ AC_CONFIG_COMMANDS_PRE([m4_ifdef([AH_HEADER],
+ [AC_SUBST([CONFIG_INCLUDE], m4_defn([AH_HEADER]))])])
+ AC_REQUIRE([AC_PROG_SED])
+ AC_REQUIRE([AC_PROG_GREP])
+ gl_FUNC_MALLOC_GNU
+ if test $REPLACE_MALLOC = 1; then
+ AC_LIBOBJ([malloc])
+ fi
+ AC_REQUIRE([gl_FUNC_MALLOC_POSIX])
+ if test $REPLACE_MALLOC = 1; then
+ AC_LIBOBJ([malloc])
+ fi
+ gl_STDLIB_MODULE_INDICATOR([malloc-posix])
+ gl_MALLOCA
+ gl_MBCHAR
+ gl_MBITER
+ gl_FUNC_MBRLEN
+ if test $HAVE_MBRLEN = 0 || test $REPLACE_MBRLEN = 1; then
+ AC_LIBOBJ([mbrlen])
+ gl_PREREQ_MBRLEN
+ fi
+ gl_WCHAR_MODULE_INDICATOR([mbrlen])
+ gl_FUNC_MBRTOWC
+ if test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1; then
+ AC_LIBOBJ([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
+ fi
+ gl_WCHAR_MODULE_INDICATOR([mbrtowc])
+ gl_STRING_MODULE_INDICATOR([mbscasecmp])
+ gl_FUNC_MBSINIT
+ if test $HAVE_MBSINIT = 0 || test $REPLACE_MBSINIT = 1; then
+ AC_LIBOBJ([mbsinit])
+ gl_PREREQ_MBSINIT
+ fi
+ gl_WCHAR_MODULE_INDICATOR([mbsinit])
+ gl_FUNC_MBSLEN
+ gl_STRING_MODULE_INDICATOR([mbslen])
+ gl_FUNC_MBSRTOWCS
+ if test $HAVE_MBSRTOWCS = 0 || test $REPLACE_MBSRTOWCS = 1; then
+ AC_LIBOBJ([mbsrtowcs])
+ AC_LIBOBJ([mbsrtowcs-state])
+ gl_PREREQ_MBSRTOWCS
+ fi
+ gl_WCHAR_MODULE_INDICATOR([mbsrtowcs])
+ gl_STRING_MODULE_INDICATOR([mbsstr])
+ gl_FUNC_MBTOWC
+ if test $HAVE_MBTOWC = 0 || test $REPLACE_MBTOWC = 1; then
+ AC_LIBOBJ([mbtowc])
+ gl_PREREQ_MBTOWC
+ fi
+ gl_STDLIB_MODULE_INDICATOR([mbtowc])
+ gl_MBITER
+ gl_FUNC_MEMCHR
+ if test $REPLACE_MEMCHR = 1; then
+ AC_LIBOBJ([memchr])
+ gl_PREREQ_MEMCHR
+ fi
+ gl_STRING_MODULE_INDICATOR([memchr])
+ gl_FUNC_MEMPCPY
+ if test $HAVE_MEMPCPY = 0; then
+ AC_LIBOBJ([mempcpy])
+ gl_PREREQ_MEMPCPY
+ fi
+ gl_STRING_MODULE_INDICATOR([mempcpy])
+ gl_FUNC_MEMRCHR
+ if test $ac_cv_func_memrchr = no; then
+ AC_LIBOBJ([memrchr])
+ gl_PREREQ_MEMRCHR
+ fi
+ gl_STRING_MODULE_INDICATOR([memrchr])
+ gl_MINMAX
+ AC_REQUIRE([gl_MSVC_INVAL])
+ if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+ AC_LIBOBJ([msvc-inval])
+ fi
+ AC_REQUIRE([gl_MSVC_NOTHROW])
+ if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+ AC_LIBOBJ([msvc-nothrow])
+ fi
+ gl_MODULE_INDICATOR([msvc-nothrow])
+ gl_MULTIARCH
+ gl_FUNC_NL_LANGINFO
+ if test $HAVE_NL_LANGINFO = 0 || test $REPLACE_NL_LANGINFO = 1; then
+ AC_LIBOBJ([nl_langinfo])
+ fi
+ if test $REPLACE_NL_LANGINFO = 1 && test $NL_LANGINFO_MTSAFE = 0; then
+ AC_LIBOBJ([nl_langinfo-lock])
+ gl_PREREQ_NL_LANGINFO_LOCK
+ fi
+ gl_LANGINFO_MODULE_INDICATOR([nl_langinfo])
+ AC_FUNC_OBSTACK
+ dnl Note: AC_FUNC_OBSTACK does AC_LIBSOURCES([obstack.h, obstack.c]).
+ gl_FUNC_OPEN
+ if test $REPLACE_OPEN = 1; then
+ AC_LIBOBJ([open])
+ gl_PREREQ_OPEN
+ fi
+ gl_FCNTL_MODULE_INDICATOR([open])
+ gl_FUNC_OPENAT
+ if test $HAVE_OPENAT = 0 || test $REPLACE_OPENAT = 1; then
+ AC_LIBOBJ([openat])
+ gl_PREREQ_OPENAT
+ fi
+ gl_MODULE_INDICATOR([openat]) dnl for lib/getcwd.c
+ gl_FCNTL_MODULE_INDICATOR([openat])
+ gl_OPENAT_SAFER
+ gl_MODULE_INDICATOR([openat-safer])
+ gl_FUNC_OPENDIR
+ if test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1; then
+ AC_LIBOBJ([opendir])
+ fi
+ gl_DIRENT_MODULE_INDICATOR([opendir])
+ gl_PATHMAX
+ gl_PERL
+ gl_FUNC_PIPE
+ if test $HAVE_PIPE = 0; then
+ AC_LIBOBJ([pipe])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([pipe])
+ m4_ifdef([AM_XGETTEXT_OPTION],
+ [AM_][XGETTEXT_OPTION([--keyword='proper_name:1,\"This is a proper name. See the gettext manual, section Names.\"'])
+ AM_][XGETTEXT_OPTION([--keyword='proper_name_utf8:1,\"This is a proper name. See the gettext manual, section Names.\"'])])
+ gl_QUOTE
+ gl_QUOTEARG
+ gl_FUNC_RAISE
+ if test $HAVE_RAISE = 0 || test $REPLACE_RAISE = 1; then
+ AC_LIBOBJ([raise])
+ gl_PREREQ_RAISE
+ fi
+ gl_SIGNAL_MODULE_INDICATOR([raise])
+ gl_FUNC_RAWMEMCHR
+ if test $HAVE_RAWMEMCHR = 0; then
+ AC_LIBOBJ([rawmemchr])
+ gl_PREREQ_RAWMEMCHR
+ fi
+ gl_STRING_MODULE_INDICATOR([rawmemchr])
+ gl_FUNC_READ
+ if test $REPLACE_READ = 1; then
+ AC_LIBOBJ([read])
+ gl_PREREQ_READ
+ fi
+ gl_UNISTD_MODULE_INDICATOR([read])
+ gl_FUNC_READDIR
+ if test $HAVE_READDIR = 0; then
+ AC_LIBOBJ([readdir])
+ fi
+ gl_DIRENT_MODULE_INDICATOR([readdir])
+ gl_FUNC_REALLOC_GNU
+ if test $REPLACE_REALLOC = 1; then
+ AC_LIBOBJ([realloc])
+ fi
+ gl_FUNC_REALLOC_POSIX
+ if test $REPLACE_REALLOC = 1; then
+ AC_LIBOBJ([realloc])
+ fi
+ gl_STDLIB_MODULE_INDICATOR([realloc-posix])
+ gl_FUNC_REALLOCARRAY
+ if test $HAVE_REALLOCARRAY = 0 || test $REPLACE_REALLOCARRAY = 1; then
+ AC_LIBOBJ([reallocarray])
+ gl_PREREQ_REALLOCARRAY
+ fi
+ gl_MODULE_INDICATOR([reallocarray])
+ gl_STDLIB_MODULE_INDICATOR([reallocarray])
+ gl_REGEX
+ if test $ac_use_included_regex = yes; then
+ AC_LIBOBJ([regex])
+ gl_PREREQ_REGEX
+ fi
+ gl_PREREQ_SAFE_READ
+ gl_SAVE_CWD
+ gl_FUNC_SETLOCALE_NULL
+ if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then
+ AC_LIBOBJ([setlocale-lock])
+ gl_PREREQ_SETLOCALE_LOCK
+ fi
+ gl_LOCALE_MODULE_INDICATOR([setlocale_null])
+ gl_SIGNAL_H
+ gl_SIGNAL_H_REQUIRE_DEFAULTS
+ AC_ARG_WITH([libsigsegv],
+ [AS_HELP_STRING([--with-libsigsegv],
+ [use the GNU libsigsegv library, when present, instead of the gnulib module 'sigsegv'])])
+ SIGSEGV_H=sigsegv.h
+ if test "$with_libsigsegv" = yes; then
+ gl_LIBSIGSEGV
+ if test "$gl_cv_lib_sigsegv" = yes; then
+ SIGSEGV_H=
+ fi
+ fi
+ AC_SUBST([SIGSEGV_H])
+ AM_CONDITIONAL([GL_GENERATE_SIGSEGV_H], [test -n "$SIGSEGV_H"])
+ if test -n "$SIGSEGV_H"; then
+ dnl Persuade glibc <sys/ucontext.h> to declare macros designating register
+ dnl indices: REG_RSP on x86_64, REG_ESP on i386.
+ dnl Persuade Solaris OpenIndiana <ucontext.h> to include <sys/regset.h>,
+ dnl which declares macros designating register indices, such as ESP on i386.
+ dnl Persuade Solaris OpenIndiana <unistd.h> to declare mincore().
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ solaris2.11)
+ AC_DEFINE([SOLARIS11], [1], [Define on Solaris 11 and its derivates.])
+ ;;
+ esac
+ gl_FUNC_MMAP_ANON
+ dnl Stack direction.
+ SV_STACK_DIRECTION
+ dnl Catching stack overflow requires an alternate signal stack.
+ dnl The old "install a guard page" trick would be unreliable, because
+ dnl we don't know where exactly to place the guard page.
+ SV_SIGALTSTACK
+ AC_CHECK_FUNCS_ONCE([getrlimit])
+ fi
+ gt_TYPE_SSIZE_T
+ gl_FUNC_STAT
+ if test $REPLACE_STAT = 1; then
+ AC_LIBOBJ([stat])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([stat-w32])
+ ;;
+ esac
+ gl_PREREQ_STAT
+ fi
+ gl_SYS_STAT_MODULE_INDICATOR([stat])
+ gl_STAT_TIME
+ gl_STAT_BIRTHTIME
+ gl_STDALIGN_H
+ gl_STDARG_H
+ AM_STDBOOL_H
+ gl_STDDEF_H
+ gl_STDDEF_H_REQUIRE_DEFAULTS
+ gl_STDINT_H
+ gl_STDIO_H
+ gl_STDIO_H_REQUIRE_DEFAULTS
+ 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
+ gl_FUNC_STPCPY
+ if test $HAVE_STPCPY = 0; then
+ AC_LIBOBJ([stpcpy])
+ gl_PREREQ_STPCPY
+ fi
+ gl_STRING_MODULE_INDICATOR([stpcpy])
+ gl_FUNC_STRDUP_POSIX
+ if test $REPLACE_STRDUP = 1; then
+ AC_LIBOBJ([strdup])
+ gl_PREREQ_STRDUP
+ fi
+ gl_STRING_MODULE_INDICATOR([strdup])
+ gl_FUNC_STRERROR
+ if test $REPLACE_STRERROR = 1; then
+ AC_LIBOBJ([strerror])
+ fi
+ gl_MODULE_INDICATOR([strerror])
+ gl_STRING_MODULE_INDICATOR([strerror])
+ AC_REQUIRE([gl_HEADER_ERRNO_H])
+ AC_REQUIRE([gl_FUNC_STRERROR_0])
+ if test -n "$ERRNO_H" || test $REPLACE_STRERROR_0 = 1; then
+ AC_LIBOBJ([strerror-override])
+ gl_PREREQ_SYS_H_WINSOCK2
+ fi
+ if test $gl_cond_libtool = false; then
+ gl_ltlibdeps="$gl_ltlibdeps $LTLIBICONV"
+ gl_libdeps="$gl_libdeps $LIBICONV"
+ fi
+ gl_STRING_H
+ gl_STRING_H_REQUIRE_DEFAULTS
+ gl_FUNC_STRNLEN
+ if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then
+ AC_LIBOBJ([strnlen])
+ gl_PREREQ_STRNLEN
+ fi
+ gl_STRING_MODULE_INDICATOR([strnlen])
+ gl_FUNC_STRSTR
+ if test $REPLACE_STRSTR = 1; then
+ AC_LIBOBJ([strstr])
+ fi
+ gl_FUNC_STRSTR_SIMPLE
+ if test $REPLACE_STRSTR = 1; then
+ AC_LIBOBJ([strstr])
+ fi
+ gl_STRING_MODULE_INDICATOR([strstr])
+ gl_FUNC_STRTOIMAX
+ if test $HAVE_DECL_STRTOIMAX = 0 || test $REPLACE_STRTOIMAX = 1; then
+ AC_LIBOBJ([strtoimax])
+ gl_PREREQ_STRTOIMAX
+ fi
+ gl_INTTYPES_MODULE_INDICATOR([strtoimax])
+ gl_FUNC_STRTOLL
+ if test $HAVE_STRTOLL = 0 || test $REPLACE_STRTOLL = 1; then
+ AC_LIBOBJ([strtoll])
+ gl_PREREQ_STRTOLL
+ fi
+ gl_STDLIB_MODULE_INDICATOR([strtoll])
+ gl_FUNC_STRTOULL
+ if test $HAVE_STRTOULL = 0 || test $REPLACE_STRTOULL = 1; then
+ AC_LIBOBJ([strtoull])
+ gl_PREREQ_STRTOULL
+ fi
+ gl_STDLIB_MODULE_INDICATOR([strtoull])
+ gl_FUNC_STRTOUMAX
+ if test $HAVE_DECL_STRTOUMAX = 0 || test $REPLACE_STRTOUMAX = 1; then
+ AC_LIBOBJ([strtoumax])
+ gl_PREREQ_STRTOUMAX
+ fi
+ gl_INTTYPES_MODULE_INDICATOR([strtoumax])
+ gl_SYS_STAT_H
+ gl_SYS_STAT_H_REQUIRE_DEFAULTS
+ AC_PROG_MKDIR_P
+ gl_SYS_TYPES_H
+ gl_SYS_TYPES_H_REQUIRE_DEFAULTS
+ AC_PROG_MKDIR_P
+ AC_REQUIRE([gl_THREADLIB])
+ gl_TIME_H
+ gl_TIME_H_REQUIRE_DEFAULTS
+ gl_UNISTD_H
+ gl_UNISTD_H_REQUIRE_DEFAULTS
+ gl_UNISTD_SAFER
+ gl_LIBUNISTRING_LIBHEADER([0.9.11], [unistr.h])
+ gl_MODULE_INDICATOR([unistr/u8-mbtoucr])
+ gl_LIBUNISTRING_MODULE([0.9], [unistr/u8-mbtoucr])
+ gl_MODULE_INDICATOR([unistr/u8-uctomb])
+ gl_LIBUNISTRING_MODULE([0.9], [unistr/u8-uctomb])
+ gl_LIBUNISTRING_LIBHEADER([0.9.11], [unitypes.h])
+ AH_VERBATIM([unitypes_restrict], [
+ /* This definition is a duplicate of the one in unitypes.h.
+ It is here so that we can cope with an older version of unitypes.h
+ that does not contain this definition and that is pre-installed among
+ the public header files. */
+ # if defined __restrict \
+ || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \
+ || __clang_major__ >= 3
+ # define _UC_RESTRICT __restrict
+ # elif 199901L <= __STDC_VERSION__ || defined restrict
+ # define _UC_RESTRICT restrict
+ # else
+ # define _UC_RESTRICT
+ # endif
+ ])
+ gl_LIBUNISTRING_LIBHEADER([0.9.11], [uniwidth.h])
+ gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/width])
+ AC_DEFINE([GNULIB_STDIO_SINGLE_THREAD], [1],
+ [Define to 1 if you want the FILE stream functions getc, putc, etc.
+ to use unlocked I/O if available, throughout the package.
+ Unlocked I/O can improve performance, sometimes dramatically.
+ But unlocked I/O is safe only in single-threaded programs,
+ as well as in multithreaded programs for which you can guarantee that
+ every FILE stream, including stdin, stdout, stderr, is used only
+ in a single thread.])
+ AC_DEFINE([USE_UNLOCKED_IO], [GNULIB_STDIO_SINGLE_THREAD],
+ [An alias of GNULIB_STDIO_SINGLE_THREAD.])
+ gl_FUNC_GLIBC_UNLOCKED_IO
+ gl_VERSION_ETC
+ gl_WCHAR_H
+ gl_WCHAR_H_REQUIRE_DEFAULTS
+ gl_FUNC_WCRTOMB
+ if test $HAVE_WCRTOMB = 0 || test $REPLACE_WCRTOMB = 1; then
+ AC_LIBOBJ([wcrtomb])
+ gl_PREREQ_WCRTOMB
+ fi
+ gl_WCHAR_MODULE_INDICATOR([wcrtomb])
+ gl_FUNC_WCTOB
+ if test $HAVE_WCTOB = 0 || test $REPLACE_WCTOB = 1; then
+ AC_LIBOBJ([wctob])
+ gl_PREREQ_WCTOB
+ fi
+ gl_WCHAR_MODULE_INDICATOR([wctob])
+ gl_FUNC_WCTOMB
+ if test $REPLACE_WCTOMB = 1; then
+ AC_LIBOBJ([wctomb])
+ gl_PREREQ_WCTOMB
+ fi
+ gl_STDLIB_MODULE_INDICATOR([wctomb])
+ gl_WCTYPE_H
+ gl_WCTYPE_H_REQUIRE_DEFAULTS
+ gl_FUNC_WCWIDTH
+ if test $HAVE_WCWIDTH = 0 || test $REPLACE_WCWIDTH = 1; then
+ AC_LIBOBJ([wcwidth])
+ gl_PREREQ_WCWIDTH
+ fi
+ gl_WCHAR_MODULE_INDICATOR([wcwidth])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-mutex])
+ ;;
+ esac
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-once])
+ ;;
+ esac
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-recmutex])
+ ;;
+ esac
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-rwlock])
+ ;;
+ esac
+ AC_REQUIRE([gl_WINDOWS_STAT_INODES])
+ gl_SYS_STAT_H_REQUIRE_DEFAULTS
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*) gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OVERRIDES_STRUCT_STAT], [1]) ;;
+ esac
+ gl_FUNC_WMEMCHR
+ if test $HAVE_WMEMCHR = 0; then
+ AC_LIBOBJ([wmemchr])
+ fi
+ gl_WCHAR_MODULE_INDICATOR([wmemchr])
+ gl_FUNC_WMEMPCPY
+ if test $HAVE_WMEMPCPY = 0; then
+ AC_LIBOBJ([wmempcpy])
+ fi
+ gl_WCHAR_MODULE_INDICATOR([wmempcpy])
+ gl_XALLOC
+ gl_MODULE_INDICATOR([xalloc])
+ gl_MODULE_INDICATOR([xalloc-die])
+ gl_XSTRTOL
+ # End of code from modules
+ m4_ifval(gl_LIBSOURCES_LIST, [
+ m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
+ for gl_file in ]gl_LIBSOURCES_LIST[ ; do
+ if test ! -r ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file ; then
+ echo "missing file ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file" >&2
+ exit 1
+ fi
+ done])dnl
+ m4_if(m4_sysval, [0], [],
+ [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])
+ ])
+ m4_popdef([GL_MODULE_INDICATOR_PREFIX])
+ m4_popdef([GL_MACRO_PREFIX])
+ m4_popdef([gl_LIBSOURCES_DIR])
+ m4_popdef([gl_LIBSOURCES_LIST])
+ m4_popdef([AC_LIBSOURCES])
+ m4_popdef([AC_REPLACE_FUNCS])
+ m4_popdef([AC_LIBOBJ])
+ AC_CONFIG_COMMANDS_PRE([
+ gl_libobjs=
+ gl_ltlibobjs=
+ if test -n "$gl_LIBOBJS"; then
+ # Remove the extension.
+ sed_drop_objext='s/\.o$//;s/\.obj$//'
+ 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 $i.lo"
+ done
+ fi
+ AC_SUBST([gl_LIBOBJS], [$gl_libobjs])
+ AC_SUBST([gl_LTLIBOBJS], [$gl_ltlibobjs])
+ ])
+ gltests_libdeps=
+ gltests_ltlibdeps=
+ m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ]))
+ m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS]))
+ m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES]))
+ m4_pushdef([gltests_LIBSOURCES_LIST], [])
+ m4_pushdef([gltests_LIBSOURCES_DIR], [])
+ m4_pushdef([GL_MACRO_PREFIX], [gltests])
+ m4_pushdef([GL_MODULE_INDICATOR_PREFIX], [GL])
+ gl_COMMON
+ AC_REQUIRE([gl_CC_ALLOW_WARNINGS])
+ AC_REQUIRE([gl_CXX_ALLOW_WARNINGS])
+ gl_source_base='gnulib-tests'
+changequote(,)dnl
+ gltests_WITNESS=IN_`echo "${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], [$gl_module_indicator_condition])
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([accept])
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([accept])
+ gl_ARPA_INET_H
+ gl_ARPA_INET_H_REQUIRE_DEFAULTS
+ AC_PROG_MKDIR_P
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([bind])
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([bind])
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_FR
+ gt_LOCALE_TR_UTF8
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([connect])
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([connect])
+ gl_ENVIRON
+ gl_UNISTD_MODULE_INDICATOR([environ])
+ gl_FUNC_FDOPEN
+ if test $REPLACE_FDOPEN = 1; then
+ AC_LIBOBJ([fdopen])
+ gl_PREREQ_FDOPEN
+ fi
+ gl_STDIO_MODULE_INDICATOR([fdopen])
+ gl_FLOAT_H
+ if test $REPLACE_FLOAT_LDBL = 1; then
+ AC_LIBOBJ([float])
+ fi
+ if test $REPLACE_ITOLD = 1; then
+ AC_LIBOBJ([itold])
+ fi
+ gl_FUNC_FTRUNCATE
+ if test $HAVE_FTRUNCATE = 0 || test $REPLACE_FTRUNCATE = 1; then
+ AC_LIBOBJ([ftruncate])
+ gl_PREREQ_FTRUNCATE
+ fi
+ gl_UNISTD_MODULE_INDICATOR([ftruncate])
+ gl_FUNC_GETTIMEOFDAY
+ if test $HAVE_GETTIMEOFDAY = 0 || test $REPLACE_GETTIMEOFDAY = 1; then
+ AC_LIBOBJ([gettimeofday])
+ gl_PREREQ_GETTIMEOFDAY
+ fi
+ gl_SYS_TIME_MODULE_INDICATOR([gettimeofday])
+ gl_MUSL_LIBC
+ dnl Distinguish OpenBSD >= 6.2 from OpenBSD < 6.2.
+ AC_CHECK_FUNCS_ONCE([duplocale])
+ gl_FUNC_INET_PTON
+ if test $HAVE_INET_PTON = 0 || test $REPLACE_INET_PTON = 1; then
+ AC_LIBOBJ([inet_pton])
+ gl_PREREQ_INET_PTON
+ fi
+ gl_ARPA_INET_MODULE_INDICATOR([inet_pton])
+ AC_C_BIGENDIAN
+ gl_INTTOSTR
+ gl_FUNC_IOCTL
+ if test $HAVE_IOCTL = 0 || test $REPLACE_IOCTL = 1; then
+ AC_LIBOBJ([ioctl])
+ fi
+ gl_SYS_IOCTL_MODULE_INDICATOR([ioctl])
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_JA
+ gt_LOCALE_ZH_CN
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_JA
+ gt_LOCALE_ZH_CN
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([listen])
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([listen])
+ AC_CHECK_FUNCS_ONCE([newlocale])
+ gl_LOCALENAME
+ gl_LOCALE_MODULE_INDICATOR([localename])
+ AC_CHECK_FUNCS_ONCE([newlocale])
+ gt_LOCALE_TR_UTF8
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_JA
+ gt_LOCALE_ZH_CN
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_ZH_CN
+ dnl Check for prerequisites for memory fence checks.
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ gl_FUNC_NANOSLEEP
+ if test $HAVE_NANOSLEEP = 0 || test $REPLACE_NANOSLEEP = 1; then
+ AC_LIBOBJ([nanosleep])
+ gl_PREREQ_NANOSLEEP
+ fi
+ gl_TIME_MODULE_INDICATOR([nanosleep])
+ AC_CHECK_DECLS_ONCE([alarm])
+ gl_HEADER_NETINET_IN
+ AC_PROG_MKDIR_P
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gl_FUNC_PERROR
+ if test $REPLACE_PERROR = 1; then
+ AC_LIBOBJ([perror])
+ fi
+ gl_STRING_MODULE_INDICATOR([perror])
+ gl_PTHREAD_H
+ gl_PTHREAD_H_REQUIRE_DEFAULTS
+ gl_PTHREAD_THREAD
+ if test $HAVE_PTHREAD_CREATE = 0 || test $REPLACE_PTHREAD_CREATE = 1; then
+ AC_LIBOBJ([pthread-thread])
+ fi
+ gl_PTHREAD_MODULE_INDICATOR([pthread-thread])
+ gl_FUNC_PTHREAD_SIGMASK
+ if test $HAVE_PTHREAD_SIGMASK = 0 || test $REPLACE_PTHREAD_SIGMASK = 1; then
+ AC_LIBOBJ([pthread_sigmask])
+ gl_PREREQ_PTHREAD_SIGMASK
+ fi
+ gl_SIGNAL_MODULE_INDICATOR([pthread_sigmask])
+ gl_FUNC_PUTENV
+ if test $REPLACE_PUTENV = 1; then
+ AC_LIBOBJ([putenv])
+ gl_PREREQ_PUTENV
+ fi
+ gl_STDLIB_MODULE_INDICATOR([putenv])
+ dnl Check for prerequisites for memory fence checks.
+ dnl FIXME: zerosize-ptr.h requires these: make a module for it
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ dnl Check for prerequisites for memory fence checks.
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ gl_SCHED_H
+ gl_SCHED_H_REQUIRE_DEFAULTS
+ gl_FUNC_SELECT
+ if test $REPLACE_SELECT = 1; then
+ AC_LIBOBJ([select])
+ fi
+ gl_SYS_SELECT_MODULE_INDICATOR([select])
+ AC_CHECK_HEADERS_ONCE([sys/wait.h])
+ gl_FUNC_SETENV
+ if test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1; then
+ AC_LIBOBJ([setenv])
+ fi
+ gl_STDLIB_MODULE_INDICATOR([setenv])
+ gl_FUNC_SETLOCALE
+ if test $REPLACE_SETLOCALE = 1; then
+ AC_LIBOBJ([setlocale])
+ gl_PREREQ_SETLOCALE
+ fi
+ gl_LOCALE_MODULE_INDICATOR([setlocale])
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_JA
+ gt_LOCALE_ZH_CN
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([setsockopt])
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([setsockopt])
+ gl_SIGACTION
+ if test $HAVE_SIGACTION = 0; then
+ AC_LIBOBJ([sigaction])
+ gl_PREREQ_SIGACTION
+ fi
+ gl_SIGNAL_MODULE_INDICATOR([sigaction])
+ gl_SIGNALBLOCKING
+ if test $HAVE_POSIX_SIGNALBLOCKING = 0; then
+ AC_LIBOBJ([sigprocmask])
+ gl_PREREQ_SIGPROCMASK
+ fi
+ gl_SIGNAL_MODULE_INDICATOR([sigprocmask])
+ AC_CHECK_FUNCS_ONCE([setrlimit])
+ gl_FUNC_MMAP_ANON
+ gl_SIZE_MAX
+ gl_FUNC_SLEEP
+ if test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1; then
+ AC_LIBOBJ([sleep])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([sleep])
+ AC_CHECK_DECLS_ONCE([alarm])
+ gl_FUNC_SNPRINTF
+ gl_STDIO_MODULE_INDICATOR([snprintf])
+ gl_MODULE_INDICATOR([snprintf])
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ AC_LIBOBJ([socket])
+ fi
+ # When this module is used, sockets may actually occur as file descriptors,
+ # hence it is worth warning if the modules 'close' and 'ioctl' are not used.
+ m4_ifdef([gl_UNISTD_H_DEFAULTS], [gl_UNISTD_H_REQUIRE_DEFAULTS])
+ m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [gl_SYS_IOCTL_H_REQUIRE_DEFAULTS])
+ AC_REQUIRE([gl_PREREQ_SYS_H_WINSOCK2])
+ if test "$ac_cv_header_winsock2_h" = yes; then
+ UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=1
+ SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=1
+ fi
+ gl_SYS_SOCKET_MODULE_INDICATOR([socket])
+ AC_REQUIRE([gl_SOCKETLIB])
+ AC_REQUIRE([gl_SOCKETS])
+ gl_TYPE_SOCKLEN_T
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+ AC_REQUIRE([gt_TYPE_WINT_T])
+ gl_FUNC_STRERROR_R
+ if test $HAVE_DECL_STRERROR_R = 0 || test $REPLACE_STRERROR_R = 1; then
+ AC_LIBOBJ([strerror_r])
+ gl_PREREQ_STRERROR_R
+ fi
+ gl_STRING_MODULE_INDICATOR([strerror_r])
+ dnl For the modules argp, error.
+ gl_MODULE_INDICATOR([strerror_r-posix])
+ 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_CHECK_DECLS_ONCE([alarm])
+ gl_FUNC_MMAP_ANON
+ AC_CHECK_HEADERS_ONCE([sys/mman.h])
+ AC_CHECK_FUNCS_ONCE([mprotect])
+ gl_FUNC_SYMLINK
+ if test $HAVE_SYMLINK = 0 || test $REPLACE_SYMLINK = 1; then
+ AC_LIBOBJ([symlink])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([symlink])
+ gl_SYS_IOCTL_H
+ gl_SYS_IOCTL_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
+ AC_CHECK_FUNCS_ONCE([shutdown])
+ gl_SYS_TIME_H
+ gl_SYS_TIME_H_REQUIRE_DEFAULTS
+ AC_PROG_MKDIR_P
+ gl_SYS_UIO_H
+ gl_SYS_UIO_H_REQUIRE_DEFAULTS
+ AC_PROG_MKDIR_P
+ gl_THREAD
+ AC_CHECK_HEADERS([sys/single_threaded.h])
+ gl_FUNC_UNSETENV
+ if test $HAVE_UNSETENV = 0 || test $REPLACE_UNSETENV = 1; then
+ AC_LIBOBJ([unsetenv])
+ gl_PREREQ_UNSETENV
+ fi
+ gl_STDLIB_MODULE_INDICATOR([unsetenv])
+ AC_REQUIRE([AC_C_RESTRICT])
+ gl_FUNC_VASNPRINTF
+ abs_aux_dir=`cd "$ac_aux_dir"; pwd`
+ AC_SUBST([abs_aux_dir])
+ gt_LOCALE_FR
+ gt_LOCALE_FR_UTF8
+ gt_LOCALE_JA
+ gt_LOCALE_ZH_CN
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-thread])
+ ;;
+ esac
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_LIBOBJ([windows-tls])
+ ;;
+ esac
+ gl_XSIZE
+ 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=
+ if test -n "$gltests_LIBOBJS"; then
+ # Remove the extension.
+ sed_drop_objext='s/\.o$//;s/\.obj$//'
+ 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 $i.lo"
+ done
+ fi
+ AC_SUBST([gltests_LIBOBJS], [$gltests_libobjs])
+ AC_SUBST([gltests_LTLIBOBJS], [$gltests_ltlibobjs])
+ ])
+ LIBGREPUTILS_LIBDEPS="$gl_libdeps"
+ AC_SUBST([LIBGREPUTILS_LIBDEPS])
+ LIBGREPUTILS_LTLIBDEPS="$gl_ltlibdeps"
+ AC_SUBST([LIBGREPUTILS_LTLIBDEPS])
+ LIBTESTS_LIBDEPS="$gltests_libdeps"
+ AC_SUBST([LIBTESTS_LIBDEPS])
+])
+
+# 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], [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], [gnulib-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/announce-gen
+ build-aux/config.rpath
+ build-aux/do-release-commit-and-tag
+ build-aux/gendocs.sh
+ build-aux/git-version-gen
+ build-aux/gitlog-to-changelog
+ build-aux/gnu-web-doc-update
+ build-aux/gnupload
+ build-aux/update-copyright
+ build-aux/useless-if-before-free
+ build-aux/vc-list-files
+ doc/fdl.texi
+ doc/gendocs_template
+ doc/gendocs_template_min
+ lib/_Noreturn.h
+ lib/alignof.h
+ lib/alloca.c
+ lib/alloca.in.h
+ lib/arg-nonnull.h
+ lib/argmatch.c
+ lib/argmatch.h
+ lib/assure.h
+ lib/at-func.c
+ lib/attribute.h
+ lib/basename-lgpl.c
+ lib/basename-lgpl.h
+ lib/binary-io.c
+ lib/binary-io.h
+ lib/bitrotate.c
+ lib/bitrotate.h
+ lib/btowc.c
+ lib/c++defs.h
+ lib/c-ctype.c
+ lib/c-ctype.h
+ lib/c-stack.c
+ lib/c-stack.h
+ lib/c-strcase.h
+ lib/c-strcasecmp.c
+ lib/c-strcaseeq.h
+ lib/c-strncasecmp.c
+ lib/calloc.c
+ lib/cdefs.h
+ lib/chdir-long.c
+ lib/chdir-long.h
+ lib/cloexec.c
+ lib/cloexec.h
+ lib/close-stream.c
+ lib/close-stream.h
+ lib/close.c
+ lib/closedir.c
+ lib/closeout.c
+ lib/closeout.h
+ lib/creat-safer.c
+ lib/ctype.in.h
+ lib/cycle-check.c
+ lib/cycle-check.h
+ lib/dev-ino.h
+ lib/dfa.c
+ lib/dfa.h
+ lib/dirent-private.h
+ lib/dirent.in.h
+ lib/dirfd.c
+ lib/dirname-lgpl.c
+ lib/dirname.h
+ lib/dup-safer-flag.c
+ lib/dup-safer.c
+ lib/dup.c
+ lib/dup2.c
+ lib/dynarray.h
+ lib/errno.in.h
+ lib/error.c
+ lib/error.h
+ lib/exclude.c
+ lib/exclude.h
+ lib/exitfail.c
+ lib/exitfail.h
+ lib/fchdir.c
+ lib/fcntl--.h
+ lib/fcntl-safer.h
+ 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/filename.h
+ lib/filenamecat-lgpl.c
+ lib/filenamecat.h
+ lib/flexmember.h
+ lib/fnmatch.c
+ lib/fnmatch.in.h
+ lib/fnmatch_loop.c
+ lib/fopen.c
+ lib/fpending.c
+ lib/fpending.h
+ lib/free.c
+ lib/fstat.c
+ lib/fstatat.c
+ lib/fts-cycle.c
+ lib/fts.c
+ lib/fts_.h
+ lib/getcwd-lgpl.c
+ lib/getdtablesize.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/getpagesize.c
+ lib/getprogname.c
+ lib/getprogname.h
+ lib/gettext.h
+ lib/glthread/lock.c
+ lib/glthread/lock.h
+ lib/glthread/threadlib.c
+ lib/hard-locale.c
+ lib/hard-locale.h
+ lib/hash.c
+ lib/hash.h
+ lib/i-ring.c
+ lib/i-ring.h
+ lib/ialloc.c
+ lib/ialloc.h
+ lib/iconv.c
+ lib/iconv.in.h
+ lib/iconv_close.c
+ lib/iconv_open-aix.gperf
+ lib/iconv_open-hpux.gperf
+ lib/iconv_open-irix.gperf
+ lib/iconv_open-osf.gperf
+ lib/iconv_open-solaris.gperf
+ lib/iconv_open-zos.gperf
+ lib/iconv_open.c
+ lib/idx.h
+ lib/ignore-value.h
+ lib/intprops.h
+ lib/inttypes.in.h
+ lib/isatty.c
+ lib/isblank.c
+ lib/iswblank.c
+ lib/iswctype-impl.h
+ lib/iswctype.c
+ lib/iswdigit.c
+ lib/iswxdigit.c
+ lib/langinfo.in.h
+ lib/lc-charset-dispatch.c
+ lib/lc-charset-dispatch.h
+ lib/libc-config.h
+ lib/limits.in.h
+ lib/localcharset.c
+ lib/localcharset.h
+ lib/locale.in.h
+ lib/localeconv.c
+ lib/localeinfo.c
+ lib/localeinfo.h
+ lib/lseek.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/malloca.c
+ lib/malloca.h
+ lib/mbchar.c
+ lib/mbchar.h
+ lib/mbiter.c
+ lib/mbiter.h
+ lib/mbrlen.c
+ lib/mbrtowc-impl-utf8.h
+ lib/mbrtowc-impl.h
+ lib/mbrtowc.c
+ lib/mbscasecmp.c
+ lib/mbsinit.c
+ lib/mbslen.c
+ lib/mbsrtowcs-impl.h
+ lib/mbsrtowcs-state.c
+ lib/mbsrtowcs.c
+ lib/mbsstr.c
+ lib/mbtowc-impl.h
+ lib/mbtowc-lock.c
+ lib/mbtowc-lock.h
+ lib/mbtowc.c
+ lib/mbuiter.c
+ lib/mbuiter.h
+ lib/memchr.c
+ lib/memchr.valgrind
+ lib/memchr2.c
+ lib/memchr2.h
+ lib/memchr2.valgrind
+ lib/mempcpy.c
+ lib/memrchr.c
+ lib/minmax.h
+ lib/msvc-inval.c
+ lib/msvc-inval.h
+ lib/msvc-nothrow.c
+ lib/msvc-nothrow.h
+ lib/nl_langinfo-lock.c
+ lib/nl_langinfo.c
+ lib/obstack.c
+ lib/obstack.h
+ lib/open-safer.c
+ lib/open.c
+ lib/openat-die.c
+ lib/openat-priv.h
+ lib/openat-proc.c
+ lib/openat-safer.c
+ lib/openat.c
+ lib/openat.h
+ lib/opendir.c
+ lib/opendirat.c
+ lib/opendirat.h
+ lib/pathmax.h
+ lib/pipe-safer.c
+ lib/pipe.c
+ lib/propername.c
+ lib/propername.h
+ lib/quote.h
+ lib/quotearg.c
+ lib/quotearg.h
+ lib/raise.c
+ lib/rawmemchr.c
+ lib/rawmemchr.valgrind
+ lib/read.c
+ lib/readdir.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/safe-read.c
+ lib/safe-read.h
+ lib/same-inode.h
+ lib/save-cwd.c
+ lib/save-cwd.h
+ lib/setlocale-lock.c
+ lib/setlocale_null.c
+ lib/setlocale_null.h
+ lib/signal.in.h
+ lib/sigsegv.c
+ lib/sigsegv.in.h
+ lib/stackvma.c
+ lib/stackvma.h
+ lib/stat-time.c
+ lib/stat-time.h
+ lib/stat-w32.c
+ lib/stat-w32.h
+ lib/stat.c
+ lib/stdalign.in.h
+ lib/stdarg.in.h
+ lib/stdbool.in.h
+ lib/stddef.in.h
+ lib/stdint.in.h
+ lib/stdio-impl.h
+ lib/stdio.in.h
+ lib/stdlib.in.h
+ lib/stpcpy.c
+ lib/str-kmp.h
+ lib/str-two-way.h
+ lib/strdup.c
+ lib/streq.h
+ lib/strerror-override.c
+ lib/strerror-override.h
+ lib/strerror.c
+ lib/striconv.c
+ lib/striconv.h
+ lib/string.in.h
+ lib/stripslash.c
+ lib/strnlen.c
+ lib/strnlen1.c
+ lib/strnlen1.h
+ lib/strstr.c
+ lib/strtoimax.c
+ lib/strtol.c
+ lib/strtoll.c
+ lib/strtoul.c
+ lib/strtoull.c
+ lib/strtoumax.c
+ lib/sys-limits.h
+ lib/sys_stat.in.h
+ lib/sys_types.in.h
+ lib/time.in.h
+ lib/trim.c
+ lib/trim.h
+ lib/unistd--.h
+ lib/unistd-safer.h
+ lib/unistd.c
+ lib/unistd.in.h
+ lib/unistr.in.h
+ lib/unistr/u8-mbtoucr.c
+ lib/unistr/u8-uctomb-aux.c
+ lib/unistr/u8-uctomb.c
+ lib/unitypes.in.h
+ lib/uniwidth.in.h
+ lib/uniwidth/cjk.h
+ lib/uniwidth/width.c
+ lib/unlocked-io.h
+ lib/verify.h
+ lib/version-etc-fsf.c
+ lib/version-etc.c
+ lib/version-etc.h
+ lib/warn-on-use.h
+ lib/wchar.in.h
+ lib/wcrtomb.c
+ lib/wctob.c
+ lib/wctomb-impl.h
+ lib/wctomb.c
+ lib/wctype-h.c
+ lib/wctype.in.h
+ lib/wcwidth.c
+ 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/xbinary-io.c
+ lib/xbinary-io.h
+ lib/xmalloc.c
+ lib/xstriconv.c
+ lib/xstriconv.h
+ lib/xstrtoimax.c
+ lib/xstrtol.c
+ lib/xstrtol.h
+ lib/xstrtoul.c
+ m4/00gnulib.m4
+ m4/__inline.m4
+ m4/absolute-header.m4
+ m4/alloca.m4
+ m4/arpa_inet_h.m4
+ m4/asm-underscore.m4
+ m4/assert.m4
+ m4/btowc.m4
+ m4/builtin-expect.m4
+ m4/c-stack.m4
+ m4/calloc.m4
+ m4/chdir-long.m4
+ m4/close.m4
+ m4/closedir.m4
+ m4/codeset.m4
+ m4/configmake.m4
+ m4/ctype_h.m4
+ m4/cycle-check.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/exponentd.m4
+ m4/extensions.m4
+ m4/extern-inline.m4
+ m4/fchdir.m4
+ m4/fcntl-o.m4
+ m4/fcntl-safer.m4
+ m4/fcntl.m4
+ m4/fcntl_h.m4
+ m4/fdopen.m4
+ m4/fdopendir.m4
+ m4/filenamecat.m4
+ m4/flexmember.m4
+ m4/float_h.m4
+ m4/fnmatch.m4
+ m4/fnmatch_h.m4
+ m4/fopen.m4
+ m4/fpending.m4
+ m4/fpieee.m4
+ m4/free.m4
+ m4/fstat.m4
+ m4/fstatat.m4
+ m4/ftruncate.m4
+ m4/fts.m4
+ m4/getcwd.m4
+ m4/getdtablesize.m4
+ m4/getopt.m4
+ m4/getpagesize.m4
+ m4/getprogname.m4
+ m4/gettimeofday.m4
+ m4/gnulib-common.m4
+ m4/host-cpu-c-abi.m4
+ m4/i-ring.m4
+ m4/iconv.m4
+ m4/iconv_h.m4
+ m4/iconv_open.m4
+ m4/include_next.m4
+ m4/inet_pton.m4
+ m4/inline.m4
+ m4/intl-thread-locale.m4
+ m4/intlmacosx.m4
+ m4/intmax_t.m4
+ m4/inttostr.m4
+ m4/inttypes.m4
+ m4/inttypes_h.m4
+ m4/ioctl.m4
+ m4/isatty.m4
+ m4/isblank.m4
+ m4/iswblank.m4
+ m4/iswctype.m4
+ m4/iswdigit.m4
+ m4/iswxdigit.m4
+ m4/langinfo_h.m4
+ m4/largefile.m4
+ m4/lcmessage.m4
+ m4/lib-ld.m4
+ m4/lib-link.m4
+ m4/lib-prefix.m4
+ m4/libsigsegv.m4
+ m4/libunistring-base.m4
+ m4/limits-h.m4
+ m4/localcharset.m4
+ m4/locale-fr.m4
+ m4/locale-ja.m4
+ m4/locale-tr.m4
+ m4/locale-zh.m4
+ m4/locale_h.m4
+ m4/localeconv.m4
+ m4/localename.m4
+ m4/lock.m4
+ m4/lseek.m4
+ m4/lstat.m4
+ m4/malloc.m4
+ m4/malloca.m4
+ m4/manywarnings-c++.m4
+ m4/manywarnings.m4
+ m4/math_h.m4
+ m4/mbchar.m4
+ m4/mbiter.m4
+ m4/mbrlen.m4
+ m4/mbrtowc.m4
+ m4/mbsinit.m4
+ m4/mbslen.m4
+ m4/mbsrtowcs.m4
+ m4/mbstate_t.m4
+ m4/mbtowc.m4
+ m4/memchr.m4
+ m4/mempcpy.m4
+ m4/memrchr.m4
+ m4/minmax.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/netinet_in_h.m4
+ m4/nl_langinfo.m4
+ m4/nocrash.m4
+ m4/obstack.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/perl.m4
+ m4/perror.m4
+ m4/pid_t.m4
+ m4/pipe.m4
+ m4/printf.m4
+ m4/pthread-thread.m4
+ m4/pthread_h.m4
+ m4/pthread_rwlock_rdlock.m4
+ m4/pthread_sigmask.m4
+ m4/putenv.m4
+ m4/quote.m4
+ m4/quotearg.m4
+ m4/raise.m4
+ m4/rawmemchr.m4
+ m4/read.m4
+ m4/readdir.m4
+ m4/realloc.m4
+ m4/reallocarray.m4
+ m4/regex.m4
+ m4/safe-read.m4
+ m4/save-cwd.m4
+ m4/sched_h.m4
+ m4/select.m4
+ m4/setenv.m4
+ m4/setlocale.m4
+ m4/setlocale_null.m4
+ m4/sigaction.m4
+ m4/sigaltstack.m4
+ m4/signal_h.m4
+ m4/signalblocking.m4
+ m4/size_max.m4
+ m4/sleep.m4
+ m4/snprintf.m4
+ m4/socketlib.m4
+ m4/sockets.m4
+ m4/socklen.m4
+ m4/sockpfaf.m4
+ m4/ssize_t.m4
+ m4/stack-direction.m4
+ m4/stat-time.m4
+ m4/stat.m4
+ m4/std-gnu11.m4
+ m4/stdalign.m4
+ m4/stdarg.m4
+ m4/stdbool.m4
+ m4/stddef_h.m4
+ m4/stdint.m4
+ m4/stdint_h.m4
+ m4/stdio_h.m4
+ m4/stdlib_h.m4
+ m4/stpcpy.m4
+ m4/strdup.m4
+ m4/strerror.m4
+ m4/strerror_r.m4
+ m4/string_h.m4
+ m4/strnlen.m4
+ m4/strstr.m4
+ m4/strtoimax.m4
+ m4/strtoll.m4
+ m4/strtoull.m4
+ m4/strtoumax.m4
+ m4/symlink.m4
+ m4/sys_ioctl_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/thread.m4
+ m4/threadlib.m4
+ m4/time_h.m4
+ m4/unistd-safer.m4
+ m4/unistd_h.m4
+ m4/unlocked-io.m4
+ m4/vasnprintf.m4
+ m4/version-etc.m4
+ m4/visibility.m4
+ m4/warn-on-use.m4
+ m4/warnings.m4
+ m4/wchar_h.m4
+ m4/wchar_t.m4
+ m4/wcrtomb.m4
+ m4/wctob.m4
+ m4/wctomb.m4
+ m4/wctype_h.m4
+ m4/wcwidth.m4
+ m4/windows-stat-inodes.m4
+ m4/wint_t.m4
+ m4/wmemchr.m4
+ m4/wmempcpy.m4
+ m4/xalloc.m4
+ m4/xsize.m4
+ m4/xstrtol.m4
+ m4/year2038.m4
+ m4/zzgnulib.m4
+ tests/altstack-util.h
+ tests/init.sh
+ tests/locale.c
+ tests/macros.h
+ tests/mmap-anon-util.h
+ tests/nap.h
+ tests/signature.h
+ tests/test-accept.c
+ tests/test-alignof.c
+ tests/test-alloca-opt.c
+ tests/test-argmatch.c
+ tests/test-arpa_inet.c
+ tests/test-binary-io.c
+ tests/test-binary-io.sh
+ tests/test-bind.c
+ tests/test-bitrotate.c
+ tests/test-btowc.c
+ tests/test-btowc1.sh
+ tests/test-btowc2.sh
+ tests/test-c-ctype.c
+ tests/test-c-stack.c
+ tests/test-c-stack.sh
+ tests/test-c-stack2.sh
+ tests/test-c-strcase.sh
+ tests/test-c-strcasecmp.c
+ tests/test-c-strncasecmp.c
+ tests/test-calloc-gnu.c
+ tests/test-chdir.c
+ tests/test-cloexec.c
+ tests/test-close.c
+ tests/test-connect.c
+ tests/test-ctype.c
+ tests/test-dfa-invalid-char-class.sh
+ tests/test-dfa-invalid-merge.sh
+ tests/test-dfa-match-aux.c
+ tests/test-dfa-match.sh
+ tests/test-dirent.c
+ tests/test-dup-safer.c
+ tests/test-dup.c
+ tests/test-dup2.c
+ tests/test-dynarray.c
+ tests/test-environ.c
+ tests/test-errno.c
+ tests/test-exclude.c
+ tests/test-exclude1.sh
+ tests/test-exclude2.sh
+ tests/test-exclude3.sh
+ tests/test-exclude4.sh
+ tests/test-exclude5.sh
+ tests/test-exclude6.sh
+ tests/test-exclude7.sh
+ tests/test-exclude8.sh
+ tests/test-fchdir.c
+ tests/test-fcntl-h.c
+ tests/test-fcntl-safer.c
+ tests/test-fcntl.c
+ tests/test-fdopen.c
+ tests/test-fdopendir.c
+ tests/test-fgetc.c
+ tests/test-float.c
+ tests/test-fnmatch-h.c
+ tests/test-fnmatch.c
+ tests/test-fopen-gnu.c
+ tests/test-fopen.c
+ tests/test-fopen.h
+ tests/test-fpending.c
+ tests/test-fpending.sh
+ tests/test-fputc.c
+ tests/test-fread.c
+ tests/test-free.c
+ tests/test-fstat.c
+ tests/test-fstatat.c
+ tests/test-ftruncate.c
+ tests/test-ftruncate.sh
+ tests/test-fwrite.c
+ tests/test-getcwd-lgpl.c
+ tests/test-getdtablesize.c
+ tests/test-getopt-gnu.c
+ tests/test-getopt-main.h
+ tests/test-getopt-posix.c
+ tests/test-getopt.h
+ tests/test-getopt_long.h
+ tests/test-getprogname.c
+ tests/test-gettimeofday.c
+ tests/test-hard-locale.c
+ tests/test-hash.c
+ tests/test-i-ring.c
+ tests/test-iconv-h.c
+ tests/test-iconv.c
+ tests/test-ignore-value.c
+ tests/test-inet_pton.c
+ tests/test-init.sh
+ tests/test-intprops.c
+ tests/test-inttostr.c
+ tests/test-inttypes.c
+ tests/test-ioctl.c
+ tests/test-isatty.c
+ tests/test-isblank.c
+ tests/test-iswblank.c
+ tests/test-iswdigit.c
+ tests/test-iswdigit.sh
+ tests/test-iswxdigit.c
+ tests/test-iswxdigit.sh
+ tests/test-langinfo.c
+ tests/test-limits-h.c
+ tests/test-listen.c
+ tests/test-localcharset.c
+ tests/test-locale.c
+ tests/test-localeconv.c
+ tests/test-localename.c
+ tests/test-lseek.c
+ tests/test-lseek.sh
+ tests/test-lstat.c
+ tests/test-lstat.h
+ tests/test-malloc-gnu.c
+ tests/test-malloca.c
+ tests/test-mbscasecmp.c
+ tests/test-mbscasecmp.sh
+ tests/test-mbsinit.c
+ tests/test-mbsinit.sh
+ tests/test-mbsrtowcs.c
+ tests/test-mbsrtowcs1.sh
+ tests/test-mbsrtowcs2.sh
+ tests/test-mbsrtowcs3.sh
+ tests/test-mbsrtowcs4.sh
+ tests/test-mbsstr1.c
+ tests/test-mbsstr2.c
+ tests/test-mbsstr2.sh
+ tests/test-mbsstr3.c
+ tests/test-mbsstr3.sh
+ tests/test-memchr.c
+ tests/test-memchr2.c
+ tests/test-memrchr.c
+ tests/test-nanosleep.c
+ tests/test-netinet_in.c
+ tests/test-nl_langinfo-mt.c
+ tests/test-nl_langinfo.c
+ tests/test-nl_langinfo.sh
+ tests/test-open.c
+ tests/test-open.h
+ tests/test-openat-safer.c
+ tests/test-openat.c
+ tests/test-pathmax.c
+ tests/test-perror.c
+ tests/test-perror.sh
+ tests/test-perror2.c
+ tests/test-pipe.c
+ tests/test-pthread-thread.c
+ tests/test-pthread.c
+ tests/test-pthread_sigmask1.c
+ tests/test-pthread_sigmask2.c
+ tests/test-quotearg-simple.c
+ tests/test-quotearg.h
+ tests/test-raise.c
+ tests/test-rawmemchr.c
+ tests/test-read.c
+ tests/test-realloc-gnu.c
+ tests/test-reallocarray.c
+ tests/test-regex.c
+ tests/test-sched.c
+ tests/test-select-fd.c
+ tests/test-select-in.sh
+ tests/test-select-out.sh
+ tests/test-select-stdin.c
+ tests/test-select.c
+ tests/test-select.h
+ tests/test-setenv.c
+ tests/test-setlocale1.c
+ tests/test-setlocale1.sh
+ tests/test-setlocale2.c
+ tests/test-setlocale2.sh
+ tests/test-setlocale_null-mt-all.c
+ tests/test-setlocale_null-mt-one.c
+ tests/test-setlocale_null.c
+ tests/test-setsockopt.c
+ tests/test-sigaction.c
+ tests/test-signal-h.c
+ tests/test-sigprocmask.c
+ tests/test-sigsegv-catch-segv1.c
+ tests/test-sigsegv-catch-segv2.c
+ tests/test-sigsegv-catch-stackoverflow1.c
+ tests/test-sigsegv-catch-stackoverflow2.c
+ tests/test-sleep.c
+ tests/test-snprintf.c
+ tests/test-sockets.c
+ tests/test-stat-time.c
+ tests/test-stat.c
+ tests/test-stat.h
+ tests/test-stdalign.c
+ tests/test-stdbool.c
+ tests/test-stddef.c
+ tests/test-stdint.c
+ tests/test-stdio.c
+ tests/test-stdlib.c
+ tests/test-strerror.c
+ tests/test-strerror_r.c
+ tests/test-striconv.c
+ tests/test-string.c
+ tests/test-strnlen.c
+ tests/test-strstr.c
+ tests/test-strtoimax.c
+ tests/test-strtoll.c
+ tests/test-strtoull.c
+ tests/test-strtoumax.c
+ tests/test-symlink.c
+ tests/test-symlink.h
+ tests/test-sys_ioctl.c
+ tests/test-sys_select.c
+ tests/test-sys_socket.c
+ tests/test-sys_stat.c
+ tests/test-sys_time.c
+ tests/test-sys_types.c
+ tests/test-sys_uio.c
+ tests/test-sys_wait.h
+ tests/test-thread_create.c
+ tests/test-thread_self.c
+ tests/test-time.c
+ tests/test-unistd.c
+ tests/test-unsetenv.c
+ tests/test-vasnprintf.c
+ tests/test-vc-list-files-cvs.sh
+ tests/test-vc-list-files-git.sh
+ tests/test-verify-try.c
+ tests/test-verify.c
+ tests/test-verify.sh
+ tests/test-version-etc.c
+ tests/test-version-etc.sh
+ tests/test-wchar.c
+ tests/test-wcrtomb-w32-1.sh
+ tests/test-wcrtomb-w32-2.sh
+ tests/test-wcrtomb-w32-3.sh
+ tests/test-wcrtomb-w32-4.sh
+ tests/test-wcrtomb-w32-5.sh
+ tests/test-wcrtomb-w32-6.sh
+ tests/test-wcrtomb-w32-7.sh
+ tests/test-wcrtomb-w32.c
+ tests/test-wcrtomb.c
+ tests/test-wcrtomb.sh
+ tests/test-wctype-h.c
+ tests/test-wcwidth.c
+ tests/test-xalloc-die.c
+ tests/test-xalloc-die.sh
+ tests/test-xstrtoimax.c
+ tests/test-xstrtoimax.sh
+ tests/test-xstrtol.c
+ tests/test-xstrtol.sh
+ tests/test-xstrtoul.c
+ tests/unistr/test-u8-mbtoucr.c
+ tests/unistr/test-u8-uctomb.c
+ tests/uniwidth/test-uc_width.c
+ tests/uniwidth/test-uc_width2.c
+ tests/uniwidth/test-uc_width2.sh
+ tests/zerosize-ptr.h
+ tests=lib/_Noreturn.h
+ tests=lib/accept.c
+ tests=lib/anytostr.c
+ tests=lib/arg-nonnull.h
+ tests=lib/arpa_inet.in.h
+ tests=lib/asnprintf.c
+ tests=lib/bind.c
+ tests=lib/c++defs.h
+ tests=lib/connect.c
+ tests=lib/fdopen.c
+ tests=lib/float+.h
+ tests=lib/float.c
+ tests=lib/float.in.h
+ tests=lib/fpucw.h
+ tests=lib/ftruncate.c
+ tests=lib/gettimeofday.c
+ tests=lib/glthread/thread.c
+ tests=lib/glthread/thread.h
+ tests=lib/hash-pjw.c
+ tests=lib/hash-pjw.h
+ tests=lib/imaxtostr.c
+ tests=lib/inet_pton.c
+ tests=lib/inttostr.c
+ tests=lib/inttostr.h
+ tests=lib/ioctl.c
+ tests=lib/itold.c
+ tests=lib/listen.c
+ tests=lib/localename-table.c
+ tests=lib/localename-table.h
+ tests=lib/localename.c
+ tests=lib/localename.h
+ tests=lib/nanosleep.c
+ tests=lib/netinet_in.in.h
+ tests=lib/offtostr.c
+ tests=lib/perror.c
+ tests=lib/printf-args.c
+ tests=lib/printf-args.h
+ tests=lib/printf-parse.c
+ tests=lib/printf-parse.h
+ tests=lib/pthread-thread.c
+ tests=lib/pthread.in.h
+ tests=lib/pthread_sigmask.c
+ tests=lib/putenv.c
+ tests=lib/sched.in.h
+ tests=lib/select.c
+ tests=lib/setenv.c
+ tests=lib/setlocale.c
+ tests=lib/setsockopt.c
+ tests=lib/sig-handler.c
+ tests=lib/sig-handler.h
+ tests=lib/sigaction.c
+ tests=lib/sigprocmask.c
+ tests=lib/size_max.h
+ tests=lib/sleep.c
+ tests=lib/snprintf.c
+ tests=lib/socket.c
+ tests=lib/sockets.c
+ tests=lib/sockets.h
+ tests=lib/strerror_r.c
+ tests=lib/symlink.c
+ tests=lib/sys_ioctl.in.h
+ tests=lib/sys_select.in.h
+ tests=lib/sys_socket.c
+ tests=lib/sys_socket.in.h
+ tests=lib/sys_time.in.h
+ tests=lib/sys_uio.in.h
+ tests=lib/thread-optim.h
+ tests=lib/uinttostr.c
+ tests=lib/umaxtostr.c
+ tests=lib/unsetenv.c
+ tests=lib/vasnprintf.c
+ tests=lib/vasnprintf.h
+ tests=lib/w32sock.h
+ tests=lib/warn-on-use.h
+ tests=lib/windows-thread.c
+ tests=lib/windows-thread.h
+ tests=lib/windows-tls.c
+ tests=lib/windows-tls.h
+ tests=lib/xsize.c
+ tests=lib/xsize.h
+ tests=lib/xstrtol-error.c
+ tests=lib/xstrtol-error.h
+ top/GNUmakefile
+ top/README-release
+ top/maint.mk
+])
diff --git a/src/grep/m4/host-cpu-c-abi.m4 b/src/grep/m4/host-cpu-c-abi.m4
new file mode 100644
index 0000000..64e28b1
--- /dev/null
+++ b/src/grep/m4/host-cpu-c-abi.m4
@@ -0,0 +1,675 @@
+# host-cpu-c-abi.m4 serial 14
+dnl Copyright (C) 2002-2021 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 __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/src/grep/m4/i-ring.m4 b/src/grep/m4/i-ring.m4
new file mode 100644
index 0000000..fb2e850
--- /dev/null
+++ b/src/grep/m4/i-ring.m4
@@ -0,0 +1,10 @@
+# serial 2
+dnl Copyright (C) 2006, 2009-2021 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_I_RING],
+[
+ :
+])
diff --git a/src/grep/m4/iconv.m4 b/src/grep/m4/iconv.m4
new file mode 100644
index 0000000..d0e61de
--- /dev/null
+++ b/src/grep/m4/iconv.m4
@@ -0,0 +1,283 @@
+# iconv.m4 serial 24
+dnl Copyright (C) 2000-2002, 2007-2014, 2016-2021 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 Bruno Haible.
+
+AC_PREREQ([2.64])
+
+dnl Note: AM_ICONV is documented in the GNU gettext manual
+dnl <https://www.gnu.org/software/gettext/manual/html_node/AM_005fICONV.html>.
+dnl Don't make changes that are incompatible with that documentation!
+
+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
+ am_cv_func_iconv_works=no
+ for ac_iconv_const in '' 'const'; do
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+#include <iconv.h>
+#include <string.h>
+
+#ifndef ICONV_CONST
+# define ICONV_CONST $ac_iconv_const
+#endif
+ ]],
+ [[int result = 0;
+ /* Test against AIX 5.1...7.2 bug: Failures are not distinguishable from
+ successful returns. This is even documented in
+ <https://www.ibm.com/support/knowledgecenter/ssw_aix_72/i_bostechref/iconv.html> */
+ {
+ iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
+ if (cd_utf8_to_88591 != (iconv_t)(-1))
+ {
+ static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */
+ char buf[10];
+ ICONV_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,
+ &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 ICONV_CONST char input[] = "\263";
+ char buf[10];
+ ICONV_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,
+ &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 ICONV_CONST char input[] = "\304";
+ static char buf[2] = { (char)0xDE, (char)0xAD };
+ ICONV_CONST char *inptr = input;
+ size_t inbytesleft = 1;
+ char *outptr = buf;
+ size_t outbytesleft = 1;
+ size_t res = iconv (cd_88591_to_utf8,
+ &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 ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+ char buf[50];
+ ICONV_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,
+ &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. */
+ {
+ /* Try standardized names. */
+ iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP");
+ /* Try IRIX, OSF/1 names. */
+ iconv_t cd2 = iconv_open ("UTF-8", "eucJP");
+ /* Try AIX names. */
+ iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP");
+ /* Try HP-UX names. */
+ iconv_t cd4 = iconv_open ("utf8", "eucJP");
+ if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1)
+ && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1))
+ result |= 16;
+ if (cd1 != (iconv_t)(-1))
+ iconv_close (cd1);
+ if (cd2 != (iconv_t)(-1))
+ iconv_close (cd2);
+ if (cd3 != (iconv_t)(-1))
+ iconv_close (cd3);
+ if (cd4 != (iconv_t)(-1))
+ iconv_close (cd4);
+ }
+ return result;
+]])],
+ [am_cv_func_iconv_works=yes], ,
+ [case "$host_os" in
+ aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
+ *) am_cv_func_iconv_works="guessing yes" ;;
+ esac])
+ test "$am_cv_func_iconv_works" = no || break
+ done
+ LIBS="$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, in order to 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 $1"
+dnl warnings.
+AC_DEFUN_ONCE([AM_ICONV],
+[
+ AM_ICONV_LINK
+ if test "$am_cv_func_iconv" = yes; then
+ AC_CACHE_CHECK([whether iconv is compatible with its POSIX signature],
+ [gl_cv_iconv_nonconst],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+ ]],
+ [[]])],
+ [gl_cv_iconv_nonconst=yes],
+ [gl_cv_iconv_nonconst=no])
+ ])
+ else
+ dnl When compiling GNU libiconv on a system that does not have iconv yet,
+ dnl pick the POSIX compliant declaration without 'const'.
+ gl_cv_iconv_nonconst=yes
+ fi
+ if test $gl_cv_iconv_nonconst = yes; then
+ iconv_arg1=""
+ else
+ iconv_arg1="const"
+ fi
+ AC_DEFINE_UNQUOTED([ICONV_CONST], [$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 $gl_cv_iconv_nonconst != yes; then
+ ICONV_CONST="const"
+ fi
+ ])
+])
diff --git a/src/grep/m4/iconv_h.m4 b/src/grep/m4/iconv_h.m4
new file mode 100644
index 0000000..2940988
--- /dev/null
+++ b/src/grep/m4/iconv_h.m4
@@ -0,0 +1,72 @@
+# iconv_h.m4 serial 15
+dnl Copyright (C) 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN_ONCE([gl_ICONV_H],
+[
+ AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+
+ dnl Execute this unconditionally, because ICONV_H may be set by other
+ dnl modules, after this code is executed.
+ gl_CHECK_NEXT_HEADERS([iconv.h])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use, and which is not
+ dnl guaranteed by C89.
+ gl_WARN_ON_USE_PREPARE([[#include <iconv.h>
+ ]], [iconv iconv_open])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+])
+
+dnl Unconditionally enables the replacement of <iconv.h>.
+AC_DEFUN([gl_REPLACE_ICONV_H],
+[
+ gl_ICONV_H_REQUIRE_DEFAULTS
+ ICONV_H='iconv.h'
+ AM_CONDITIONAL([GL_GENERATE_ICONV_H], [test -n "$ICONV_H"])
+])
+
+# gl_ICONV_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_ICONV_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_ICONV_H_REQUIRE_DEFAULTS
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_ICONV_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_ICONV_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ICONV])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_ICONV_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_ICONV_H_DEFAULTS],
+[
+ m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])])
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ ICONV_CONST=; AC_SUBST([ICONV_CONST])
+ REPLACE_ICONV=0; AC_SUBST([REPLACE_ICONV])
+ REPLACE_ICONV_OPEN=0; AC_SUBST([REPLACE_ICONV_OPEN])
+ REPLACE_ICONV_UTF=0; AC_SUBST([REPLACE_ICONV_UTF])
+ ICONV_H=''; AC_SUBST([ICONV_H])
+ m4_ifdef([gl_POSIXCHECK],
+ [ICONV_H='iconv.h'],
+ [if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then
+ dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE.
+ ICONV_H='iconv.h'
+ fi
+ ])
+ AM_CONDITIONAL([GL_GENERATE_ICONV_H], [test -n "$ICONV_H"])
+])
diff --git a/src/grep/m4/iconv_open.m4 b/src/grep/m4/iconv_open.m4
new file mode 100644
index 0000000..61b6af4
--- /dev/null
+++ b/src/grep/m4/iconv_open.m4
@@ -0,0 +1,60 @@
+# iconv_open.m4 serial 16
+dnl Copyright (C) 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_ICONV_OPEN],
+[
+ AC_REQUIRE([AM_ICONV])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+ if test "$am_cv_func_iconv" = yes; then
+ dnl Provide the <iconv.h> override, for the sake of the C++ aliases.
+ gl_REPLACE_ICONV_H
+ dnl Test whether iconv_open accepts standardized encoding names.
+ dnl We know that GNU libiconv and GNU libc do.
+ AC_EGREP_CPP([gnu_iconv], [
+ #include <iconv.h>
+ #if defined _LIBICONV_VERSION || (defined __GLIBC__ && !defined __UCLIBC__)
+ gnu_iconv
+ #endif
+ ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])
+ if test $gl_func_iconv_gnu = no; then
+ iconv_flavor=
+ case "$host_os" in
+ aix*) iconv_flavor=ICONV_FLAVOR_AIX ;;
+ irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;;
+ hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;;
+ osf*) iconv_flavor=ICONV_FLAVOR_OSF ;;
+ solaris*) iconv_flavor=ICONV_FLAVOR_SOLARIS ;;
+ openedition*) iconv_flavor=ICONV_FLAVOR_ZOS ;;
+ esac
+ if test -n "$iconv_flavor"; then
+ AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],
+ [Define to a symbolic name denoting the flavor of iconv_open()
+ implementation.])
+ gl_REPLACE_ICONV_OPEN
+ fi
+ fi
+ m4_ifdef([gl_FUNC_ICONV_OPEN_UTF_SUPPORT], [
+ gl_FUNC_ICONV_OPEN_UTF_SUPPORT
+ case "$gl_cv_func_iconv_supports_utf" in
+ *yes) ;;
+ *)
+ REPLACE_ICONV_UTF=1
+ AC_DEFINE([REPLACE_ICONV_UTF], [1],
+ [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])
+ REPLACE_ICONV=1
+ gl_REPLACE_ICONV_OPEN
+ ;;
+ esac
+ ])
+ fi
+])
+
+AC_DEFUN([gl_REPLACE_ICONV_OPEN],
+[
+ gl_REPLACE_ICONV_H
+ REPLACE_ICONV_OPEN=1
+])
diff --git a/src/grep/m4/include_next.m4 b/src/grep/m4/include_next.m4
new file mode 100644
index 0000000..bdd542b
--- /dev/null
+++ b/src/grep/m4/include_next.m4
@@ -0,0 +1,224 @@
+# include_next.m4 serial 26
+dnl Copyright (C) 2006-2021 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/src/grep/m4/inet_pton.m4 b/src/grep/m4/inet_pton.m4
new file mode 100644
index 0000000..1979179
--- /dev/null
+++ b/src/grep/m4/inet_pton.m4
@@ -0,0 +1,70 @@
+# inet_pton.m4 serial 19
+dnl Copyright (C) 2006, 2008-2021 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_INET_PTON],
+[
+ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
+
+ dnl Persuade Solaris <arpa/inet.h> to declare inet_pton.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+
+ dnl Most platforms that provide inet_pton define it in libc.
+ dnl Solaris 8..10 provide inet_pton in libnsl instead.
+ dnl Solaris 2.6..7 provide inet_pton in libresolv instead.
+ dnl Haiku provides it in -lnetwork.
+ dnl Native Windows provides it in -lws2_32 instead, with a declaration in
+ dnl <ws2tcpip.h>, and it uses stdcall calling convention, not cdecl
+ dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it).
+ HAVE_INET_PTON=1
+ INET_PTON_LIB=
+ gl_PREREQ_SYS_H_WINSOCK2
+ if test $HAVE_WINSOCK2_H = 1; then
+ dnl It needs to be overridden, because the stdcall calling convention
+ dnl is not compliant with POSIX. Set REPLACE_INET_PTON in order to avoid
+ dnl a name conflict at the linker level, even though the header file
+ dnl <ws2tcpip.h> declares inet_pton only if _WIN32_WINNT >= 0x0600.
+ REPLACE_INET_PTON=1
+ AC_CHECK_DECLS([inet_pton],,, [[#include <ws2tcpip.h>]])
+ if test $ac_cv_have_decl_inet_pton = yes; then
+ INET_PTON_LIB="-lws2_32"
+ else
+ HAVE_DECL_INET_PTON=0
+ fi
+ else
+ gl_save_LIBS=$LIBS
+ AC_SEARCH_LIBS([inet_pton], [nsl resolv network], [],
+ [AC_CHECK_FUNCS([inet_pton])
+ if test $ac_cv_func_inet_pton = no; then
+ HAVE_INET_PTON=0
+ fi
+ ])
+ LIBS=$gl_save_LIBS
+
+ if test "$ac_cv_search_inet_pton" != "no" \
+ && test "$ac_cv_search_inet_pton" != "none required"; then
+ INET_PTON_LIB="$ac_cv_search_inet_pton"
+ fi
+
+ AC_CHECK_HEADERS_ONCE([netdb.h])
+ AC_CHECK_DECLS([inet_pton],,,
+ [[#include <arpa/inet.h>
+ #if HAVE_NETDB_H
+ # include <netdb.h>
+ #endif
+ ]])
+ if test $ac_cv_have_decl_inet_pton = no; then
+ HAVE_DECL_INET_PTON=0
+ fi
+ fi
+ AC_SUBST([INET_PTON_LIB])
+])
+
+# Prerequisites of lib/inet_pton.c.
+AC_DEFUN([gl_PREREQ_INET_PTON], [
+ AC_REQUIRE([gl_SOCKET_FAMILIES])
+])
diff --git a/src/grep/m4/inline.m4 b/src/grep/m4/inline.m4
new file mode 100644
index 0000000..04fc774
--- /dev/null
+++ b/src/grep/m4/inline.m4
@@ -0,0 +1,40 @@
+# inline.m4 serial 4
+dnl Copyright (C) 2006, 2009-2021 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 the 'inline' keyword or equivalent.
+dnl Define 'inline' to a supported equivalent, or to nothing if not supported,
+dnl like AC_C_INLINE does. Also, define HAVE_INLINE if 'inline' or an
+dnl equivalent is effectively supported, i.e. if the compiler is likely to
+dnl drop unused 'static inline' functions.
+AC_DEFUN([gl_INLINE],
+[
+ AC_REQUIRE([AC_C_INLINE])
+ AC_CACHE_CHECK([whether the compiler generally respects inline],
+ [gl_cv_c_inline_effective],
+ [if test $ac_cv_c_inline = no; then
+ gl_cv_c_inline_effective=no
+ else
+ dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
+ dnl specified.
+ dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result
+ dnl depends on optimization flags, which can be in CFLAGS.
+ dnl (AC_EGREP_CPP looks only at the CPPFLAGS.)
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[]],
+ [[#ifdef __NO_INLINE__
+ #error "inline is not effective"
+ #endif]])],
+ [gl_cv_c_inline_effective=yes],
+ [gl_cv_c_inline_effective=no])
+ fi
+ ])
+ if test $gl_cv_c_inline_effective = yes; then
+ AC_DEFINE([HAVE_INLINE], [1],
+ [Define to 1 if the compiler supports one of the keywords
+ 'inline', '__inline__', '__inline' and effectively inlines
+ functions marked as such.])
+ fi
+])
diff --git a/src/grep/m4/intl-thread-locale.m4 b/src/grep/m4/intl-thread-locale.m4
new file mode 100644
index 0000000..890fec0
--- /dev/null
+++ b/src/grep/m4/intl-thread-locale.m4
@@ -0,0 +1,219 @@
+# intl-thread-locale.m4 serial 9
+dnl Copyright (C) 2015-2021 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 be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser 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 Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Check how to retrieve the name of a per-thread locale (POSIX locale_t).
+dnl Sets gt_nameless_locales.
+AC_DEFUN([gt_INTL_THREAD_LOCALE_NAME],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ dnl Persuade Solaris <locale.h> to define 'locale_t'.
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ dnl Test whether uselocale() exists and works at all.
+ gt_FUNC_USELOCALE
+
+ dnl On OpenBSD >= 6.2, the locale_t type and the uselocale(), newlocale(),
+ dnl duplocale(), freelocale() functions exist but are effectively useless,
+ dnl because the locale_t value depends only on the LC_CTYPE category of the
+ dnl locale and furthermore contains only one bit of information (it
+ dnl distinguishes the "C" locale from the *.UTF-8 locales). See
+ dnl <https://cvsweb.openbsd.org/src/lib/libc/locale/newlocale.c?rev=1.1&content-type=text/x-cvsweb-markup>.
+ dnl In the setlocale() implementation they have thought about the programs
+ dnl that use the API ("Even though only LC_CTYPE has any effect in the
+ dnl OpenBSD base system, store complete information about the global locale,
+ dnl such that third-party software can access it"), but for uselocale()
+ dnl they did not think about the programs.
+ dnl In this situation, even the HAVE_NAMELESS_LOCALES support does not work.
+ dnl So, define HAVE_FAKE_LOCALES and disable all locale_t support.
+ case "$gt_cv_func_uselocale_works" in
+ *yes)
+ AC_CHECK_HEADERS_ONCE([xlocale.h])
+ AC_CACHE_CHECK([for fake locale system (OpenBSD)],
+ [gt_cv_locale_fake],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#if HAVE_XLOCALE_H
+# include <xlocale.h>
+#endif
+int main ()
+{
+ locale_t loc1, loc2;
+ if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL) return 1;
+ if (setlocale (LC_ALL, "fr_FR.UTF-8") == NULL) return 1;
+ loc1 = newlocale (LC_ALL_MASK, "de_DE.UTF-8", (locale_t)0);
+ loc2 = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", (locale_t)0);
+ return !(loc1 == loc2);
+}]])],
+ [gt_cv_locale_fake=yes],
+ [gt_cv_locale_fake=no],
+ [dnl Guess the locale system is fake only on OpenBSD.
+ case "$host_os" in
+ openbsd*) gt_cv_locale_fake="guessing yes" ;;
+ *) gt_cv_locale_fake="guessing no" ;;
+ esac
+ ])
+ ])
+ ;;
+ *) gt_cv_locale_fake=no ;;
+ esac
+ case "$gt_cv_locale_fake" in
+ *yes)
+ gt_fake_locales=yes
+ AC_DEFINE([HAVE_FAKE_LOCALES], [1],
+ [Define if the locale_t type contains insufficient information, as on OpenBSD.])
+ ;;
+ *)
+ gt_fake_locales=no
+ ;;
+ esac
+
+ case "$gt_cv_func_uselocale_works" in
+ *yes)
+ AC_CACHE_CHECK([for Solaris 11.4 locale system],
+ [gt_cv_locale_solaris114],
+ [case "$host_os" in
+ solaris*)
+ dnl Test whether <locale.h> defines locale_t as a typedef of
+ dnl 'struct _LC_locale_t **' (whereas Illumos defines it as a
+ dnl typedef of 'struct _locale *').
+ dnl Another possible test would be to include <sys/localedef.h>
+ dnl and test whether it defines the _LC_core_data_locale_t type.
+ dnl This type was added in Solaris 11.4.
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #include <locale.h>
+ struct _LC_locale_t *x;
+ locale_t y;
+ ]],
+ [[*y = x;]])],
+ [gt_cv_locale_solaris114=yes],
+ [gt_cv_locale_solaris114=no])
+ ;;
+ *) gt_cv_locale_solaris114=no ;;
+ esac
+ ])
+ ;;
+ *) gt_cv_locale_solaris114=no ;;
+ esac
+ if test $gt_cv_locale_solaris114 = yes; then
+ AC_DEFINE([HAVE_SOLARIS114_LOCALES], [1],
+ [Define if the locale_t type is as on Solaris 11.4.])
+ fi
+
+ dnl Solaris 12 will maybe provide getlocalename_l. If it does, it will
+ dnl improve the implementation of gl_locale_name_thread(), by removing
+ dnl the use of undocumented structures.
+ case "$gt_cv_func_uselocale_works" in
+ *yes)
+ AC_CHECK_FUNCS([getlocalename_l])
+ ;;
+ esac
+
+ dnl This code is for platforms where the locale_t type does not provide access
+ dnl to the name of each locale category. This code has the drawback that it
+ dnl requires the gnulib overrides of 'newlocale', 'duplocale', 'freelocale',
+ dnl which is a problem for GNU libunistring. Therefore try hard to avoid
+ dnl enabling this code!
+ gt_nameless_locales=no
+ case "$host_os" in
+ dnl It's needed on AIX 7.2.
+ aix*)
+ gt_nameless_locales=yes
+ AC_DEFINE([HAVE_NAMELESS_LOCALES], [1],
+ [Define if the locale_t type does not contain the name of each locale category.])
+ ;;
+ esac
+
+ dnl We cannot support uselocale() on platforms where the locale_t type is
+ dnl fake. So, set
+ dnl gt_good_uselocale = gt_working_uselocale && !gt_fake_locales.
+ if test $gt_working_uselocale = yes && test $gt_fake_locales = no; then
+ gt_good_uselocale=yes
+ AC_DEFINE([HAVE_GOOD_USELOCALE], [1],
+ [Define if the uselocale exists, may be safely called, and returns sufficient information.])
+ else
+ gt_good_uselocale=no
+ fi
+
+ dnl Set gt_localename_enhances_locale_funcs to indicate whether localename.c
+ dnl overrides newlocale(), duplocale(), freelocale() to keep track of locale
+ dnl names.
+ if test $gt_good_uselocale = yes && test $gt_nameless_locales = yes; then
+ gt_localename_enhances_locale_funcs=yes
+ LOCALENAME_ENHANCE_LOCALE_FUNCS=1
+ AC_DEFINE([LOCALENAME_ENHANCE_LOCALE_FUNCS], [1],
+ [Define if localename.c overrides newlocale(), duplocale(), freelocale().])
+ else
+ gt_localename_enhances_locale_funcs=no
+ fi
+])
+
+dnl Tests whether uselocale() exists and is usable.
+dnl Sets gt_working_uselocale and defines HAVE_WORKING_USELOCALE.
+AC_DEFUN([gt_FUNC_USELOCALE],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+ dnl Persuade glibc and Solaris <locale.h> to define 'locale_t'.
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CHECK_FUNCS_ONCE([uselocale])
+
+ dnl On AIX 7.2, the uselocale() function is not documented and leads to
+ dnl crashes in subsequent setlocale() invocations.
+ dnl In 2019, some versions of z/OS lack the locale_t type and have a broken
+ dnl uselocale function.
+ if test $ac_cv_func_uselocale = yes; then
+ AC_CHECK_HEADERS_ONCE([xlocale.h])
+ AC_CACHE_CHECK([whether uselocale works],
+ [gt_cv_func_uselocale_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#if HAVE_XLOCALE_H
+# include <xlocale.h>
+#endif
+locale_t loc1;
+int main ()
+{
+ uselocale (NULL);
+ setlocale (LC_ALL, "en_US.UTF-8");
+ return 0;
+}]])],
+ [gt_cv_func_uselocale_works=yes],
+ [gt_cv_func_uselocale_works=no],
+ [# Guess no on AIX and z/OS, yes otherwise.
+ case "$host_os" in
+ aix* | openedition*) gt_cv_func_uselocale_works="guessing no" ;;
+ *) gt_cv_func_uselocale_works="guessing yes" ;;
+ esac
+ ])
+ ])
+ else
+ gt_cv_func_uselocale_works=no
+ fi
+ case "$gt_cv_func_uselocale_works" in
+ *yes)
+ gt_working_uselocale=yes
+ AC_DEFINE([HAVE_WORKING_USELOCALE], [1],
+ [Define if the uselocale function exists and may safely be called.])
+ ;;
+ *)
+ gt_working_uselocale=no
+ ;;
+ esac
+])
diff --git a/src/grep/m4/intlmacosx.m4 b/src/grep/m4/intlmacosx.m4
new file mode 100644
index 0000000..4ae0d12
--- /dev/null
+++ b/src/grep/m4/intlmacosx.m4
@@ -0,0 +1,65 @@
+# intlmacosx.m4 serial 8 (gettext-0.20.2)
+dnl Copyright (C) 2004-2014, 2016, 2019-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Lesser General Public License, and the rest of the GNU
+dnl gettext package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Checks for special options needed on Mac OS X.
+dnl Defines INTL_MACOSX_LIBS.
+AC_DEFUN([gt_INTL_MACOSX],
+[
+ dnl Check for API introduced in Mac OS X 10.4.
+ AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
+ [gt_cv_func_CFPreferencesCopyAppValue],
+ [gt_save_LIBS="$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 $gt_cv_func_CFPreferencesCopyAppValue = yes; then
+ AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], [1],
+ [Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
+ fi
+ dnl Don't check for the API introduced in Mac OS X 10.5, CFLocaleCopyCurrent,
+ dnl because in macOS 10.13.4 it has the following behaviour:
+ dnl When two or more languages are specified in the
+ dnl "System Preferences > Language & Region > Preferred Languages" panel,
+ dnl it returns en_CC where CC is the territory (even when English is not among
+ dnl the preferred languages!). What we want instead is what
+ dnl CFLocaleCopyCurrent returned in earlier macOS releases and what
+ dnl CFPreferencesCopyAppValue still returns, namely ll_CC where ll is the
+ dnl first among the preferred languages and CC is the territory.
+ AC_CACHE_CHECK([for CFLocaleCopyPreferredLanguages], [gt_cv_func_CFLocaleCopyPreferredLanguages],
+ [gt_save_LIBS="$LIBS"
+ LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <CoreFoundation/CFLocale.h>]],
+ [[CFLocaleCopyPreferredLanguages();]])],
+ [gt_cv_func_CFLocaleCopyPreferredLanguages=yes],
+ [gt_cv_func_CFLocaleCopyPreferredLanguages=no])
+ LIBS="$gt_save_LIBS"])
+ if test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+ AC_DEFINE([HAVE_CFLOCALECOPYPREFERREDLANGUAGES], [1],
+ [Define to 1 if you have the Mac OS X function CFLocaleCopyPreferredLanguages in the CoreFoundation framework.])
+ fi
+ INTL_MACOSX_LIBS=
+ if test $gt_cv_func_CFPreferencesCopyAppValue = yes \
+ || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+ INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+ fi
+ AC_SUBST([INTL_MACOSX_LIBS])
+])
diff --git a/src/grep/m4/intmax_t.m4 b/src/grep/m4/intmax_t.m4
new file mode 100644
index 0000000..63c4b41
--- /dev/null
+++ b/src/grep/m4/intmax_t.m4
@@ -0,0 +1,59 @@
+# intmax_t.m4 serial 9
+dnl Copyright (C) 1997-2004, 2006-2007, 2009-2021 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/src/grep/m4/inttostr.m4 b/src/grep/m4/inttostr.m4
new file mode 100644
index 0000000..8a50d50
--- /dev/null
+++ b/src/grep/m4/inttostr.m4
@@ -0,0 +1,32 @@
+#serial 8
+dnl Copyright (C) 2004-2006, 2009-2021 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_INTTOSTR],
+[
+ gl_PREREQ_INTTOSTR
+ gl_PREREQ_IMAXTOSTR
+ gl_PREREQ_OFFTOSTR
+ gl_PREREQ_UMAXTOSTR
+ gl_PREREQ_UINTTOSTR
+])
+
+# Prerequisites of lib/inttostr.h.
+AC_DEFUN([gl_PREREQ_INTTOSTR], [
+ AC_REQUIRE([AC_TYPE_OFF_T])
+ :
+])
+
+# Prerequisites of lib/imaxtostr.c.
+AC_DEFUN([gl_PREREQ_IMAXTOSTR], [:])
+
+# Prerequisites of lib/offtostr.c.
+AC_DEFUN([gl_PREREQ_OFFTOSTR], [:])
+
+# Prerequisites of lib/umaxtostr.c.
+AC_DEFUN([gl_PREREQ_UMAXTOSTR], [:])
+
+# Prerequisites of lib/uinttostr.c.
+AC_DEFUN([gl_PREREQ_UINTTOSTR], [:])
diff --git a/src/grep/m4/inttypes.m4 b/src/grep/m4/inttypes.m4
new file mode 100644
index 0000000..64b1de5
--- /dev/null
+++ b/src/grep/m4/inttypes.m4
@@ -0,0 +1,180 @@
+# inttypes.m4 serial 35
+dnl Copyright (C) 2006-2021 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 test -n "$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])
+ 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/src/grep/m4/inttypes_h.m4 b/src/grep/m4/inttypes_h.m4
new file mode 100644
index 0000000..672a93e
--- /dev/null
+++ b/src/grep/m4/inttypes_h.m4
@@ -0,0 +1,29 @@
+# inttypes_h.m4 serial 10
+dnl Copyright (C) 1997-2004, 2006, 2008-2021 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 $gl_cv_header_inttypes_h = yes; then
+ AC_DEFINE_UNQUOTED([HAVE_INTTYPES_H_WITH_UINTMAX], [1],
+ [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
+ and declares uintmax_t. ])
+ fi
+])
diff --git a/src/grep/m4/ioctl.m4 b/src/grep/m4/ioctl.m4
new file mode 100644
index 0000000..efd29f3
--- /dev/null
+++ b/src/grep/m4/ioctl.m4
@@ -0,0 +1,44 @@
+# ioctl.m4 serial 6
+dnl Copyright (C) 2008-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_IOCTL],
+[
+ AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
+ AC_REQUIRE([gl_SYS_SOCKET_H])
+ HAVE_IOCTL=1
+ if test "$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/src/grep/m4/isatty.m4 b/src/grep/m4/isatty.m4
new file mode 100644
index 0000000..330dc58
--- /dev/null
+++ b/src/grep/m4/isatty.m4
@@ -0,0 +1,19 @@
+# isatty.m4 serial 3
+dnl Copyright (C) 2012-2021 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_ISATTY],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ dnl On native Windows, the system's isatty(), defined as an alias of _isatty()
+ dnl in the "oldnames" library, returns true for the NUL device.
+ case $host_os in
+ mingw*) REPLACE_ISATTY=1 ;;
+ esac
+])
+
+# Prerequisites of lib/isatty.c.
+AC_DEFUN([gl_PREREQ_ISATTY], [:])
diff --git a/src/grep/m4/isblank.m4 b/src/grep/m4/isblank.m4
new file mode 100644
index 0000000..e77e1a8
--- /dev/null
+++ b/src/grep/m4/isblank.m4
@@ -0,0 +1,17 @@
+# isblank.m4 serial 3
+dnl Copyright (C) 2009-2021 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/src/grep/m4/iswblank.m4 b/src/grep/m4/iswblank.m4
new file mode 100644
index 0000000..84fd838
--- /dev/null
+++ b/src/grep/m4/iswblank.m4
@@ -0,0 +1,34 @@
+# iswblank.m4 serial 5
+dnl Copyright (C) 2011-2021 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_ISWBLANK],
+[
+ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+ AC_REQUIRE([gl_WCTYPE_H])
+ dnl Persuade glibc <wctype.h> to declare iswblank().
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+ AC_CHECK_FUNCS_ONCE([iswblank])
+ AC_CHECK_DECLS([iswblank], , , [[
+ #include <wchar.h>
+ #include <wctype.h>
+ ]])
+ if test $ac_cv_func_iswblank = no; then
+ HAVE_ISWBLANK=0
+ if test $ac_cv_have_decl_iswblank = yes; then
+ REPLACE_ISWBLANK=1
+ fi
+ fi
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>.
+ :
+ else
+ if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
+ dnl Redefine only iswblank.
+ :
+ fi
+ fi
+
+])
diff --git a/src/grep/m4/iswctype.m4 b/src/grep/m4/iswctype.m4
new file mode 100644
index 0000000..646630e
--- /dev/null
+++ b/src/grep/m4/iswctype.m4
@@ -0,0 +1,11 @@
+# iswctype.m4 serial 2
+dnl Copyright (C) 2011-2021 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_ISWCTYPE],
+[
+ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+ AC_REQUIRE([gl_WCTYPE_H])
+])
diff --git a/src/grep/m4/iswdigit.m4 b/src/grep/m4/iswdigit.m4
new file mode 100644
index 0000000..de4ffce
--- /dev/null
+++ b/src/grep/m4/iswdigit.m4
@@ -0,0 +1,115 @@
+# iswdigit.m4 serial 3
+dnl Copyright (C) 2020-2021 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_ISWDIGIT],
+[
+ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+ AC_REQUIRE([gl_WCTYPE_H])
+ AC_REQUIRE([gt_LOCALE_FR])
+ AC_REQUIRE([gt_LOCALE_JA])
+ AC_REQUIRE([gt_LOCALE_FR_UTF8])
+ AC_REQUIRE([gt_LOCALE_ZH_CN])
+
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ dnl <wctype.h> redefines iswdigit already.
+ REPLACE_ISWDIGIT="$REPLACE_ISWCNTRL"
+ else
+ AC_CACHE_CHECK([whether iswdigit is ISO C compliant],
+ [gl_cv_func_iswdigit_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 FreeBSD, NetBSD, Solaris, native Windows.
+ freebsd* | dragonfly* | netbsd* | solaris* | mingw*)
+ gl_cv_func_iswdigit_works="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_iswdigit_works="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_FR != none || test $LOCALE_JA != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_ZH_CN != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+
+/* Returns the value of iswdigit for the multibyte character s[0..n-1]. */
+static int
+for_character (const char *s, size_t n)
+{
+ mbstate_t state;
+ wchar_t wc;
+ size_t ret;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, s, n, &state);
+ if (ret != n)
+ abort ();
+
+ return iswdigit (wc);
+}
+
+int
+main (int argc, char *argv[])
+{
+ int is;
+ int result = 0;
+
+ if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
+ {
+ /* This fails on mingw, MSVC 14. */
+ /* U+00B2 SUPERSCRIPT TWO */
+ is = for_character ("\262", 1);
+ if (!(is == 0))
+ result |= 1;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
+ {
+ /* This fails on NetBSD 8.0. */
+ /* U+FF11 FULLWIDTH DIGIT ONE */
+ is = for_character ("\243\261", 2);
+ if (!(is == 0))
+ result |= 2;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ /* This fails on FreeBSD 13.0, NetBSD 8.0, MSVC 14. */
+ /* U+0663 ARABIC-INDIC DIGIT THREE */
+ is = for_character ("\331\243", 2);
+ if (!(is == 0))
+ result |= 4;
+ /* This fails on FreeBSD 13.0, NetBSD 8.0, MSVC 14. */
+ /* U+FF11 FULLWIDTH DIGIT ONE */
+ is = for_character ("\357\274\221", 3);
+ if (!(is == 0))
+ result |= 8;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
+ {
+ /* This fails on NetBSD 8.0, Solaris 10, Solaris 11.4. */
+ /* U+FF11 FULLWIDTH DIGIT ONE */
+ is = for_character ("\243\261", 2);
+ if (!(is == 0))
+ result |= 16;
+ }
+ return result;
+}]])],
+ [gl_cv_func_iswdigit_works=yes],
+ [gl_cv_func_iswdigit_works=no],
+ [:])
+ fi
+ ])
+ case "$gl_cv_func_iswdigit_works" in
+ *yes) ;;
+ *) REPLACE_ISWDIGIT=1 ;;
+ esac
+ fi
+])
diff --git a/src/grep/m4/iswxdigit.m4 b/src/grep/m4/iswxdigit.m4
new file mode 100644
index 0000000..f96d735
--- /dev/null
+++ b/src/grep/m4/iswxdigit.m4
@@ -0,0 +1,106 @@
+# iswxdigit.m4 serial 3
+dnl Copyright (C) 2020-2021 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_ISWXDIGIT],
+[
+ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+ AC_REQUIRE([gl_WCTYPE_H])
+ AC_REQUIRE([gt_LOCALE_JA])
+ AC_REQUIRE([gt_LOCALE_FR_UTF8])
+ AC_REQUIRE([gt_LOCALE_ZH_CN])
+
+ if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
+ dnl <wctype.h> redefines iswxdigit already.
+ REPLACE_ISWXDIGIT="$REPLACE_ISWCNTRL"
+ else
+ AC_CACHE_CHECK([whether iswxdigit is ISO C compliant],
+ [gl_cv_func_iswxdigit_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 FreeBSD, NetBSD, Solaris, native Windows.
+ freebsd* | dragonfly* | netbsd* | solaris* | mingw*)
+ gl_cv_func_iswxdigit_works="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_iswxdigit_works="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_JA != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_ZH_CN != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+
+/* Returns the value of iswxdigit for the multibyte character s[0..n-1]. */
+static int
+for_character (const char *s, size_t n)
+{
+ mbstate_t state;
+ wchar_t wc;
+ size_t ret;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (wchar_t) 0xBADFACE;
+ ret = mbrtowc (&wc, s, n, &state);
+ if (ret != n)
+ abort ();
+
+ return iswxdigit (wc);
+}
+
+int
+main (int argc, char *argv[])
+{
+ int is;
+ int result = 0;
+
+ if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
+ {
+ /* This fails on NetBSD 8.0. */
+ /* U+FF21 FULLWIDTH LATIN CAPITAL LETTER A */
+ is = for_character ("\243\301", 2);
+ if (!(is == 0))
+ result |= 1;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ /* This fails on FreeBSD 13.0. */
+ /* U+0663 ARABIC-INDIC DIGIT THREE */
+ is = for_character ("\331\243", 2);
+ if (!(is == 0))
+ result |= 2;
+ /* This fails on MSVC 14. */
+ /* U+FF21 FULLWIDTH LATIN CAPITAL LETTER A */
+ is = for_character ("\357\274\241", 3);
+ if (!(is == 0))
+ result |= 4;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
+ {
+ /* This fails on Solaris 10, Solaris 11.4. */
+ /* U+FF11 FULLWIDTH DIGIT ONE */
+ is = for_character ("\243\261", 2);
+ if (!(is == 0))
+ result |= 8;
+ }
+ return result;
+}]])],
+ [gl_cv_func_iswxdigit_works=yes],
+ [gl_cv_func_iswxdigit_works=no],
+ [:])
+ fi
+ ])
+ case "$gl_cv_func_iswxdigit_works" in
+ *yes) ;;
+ *) REPLACE_ISWXDIGIT=1 ;;
+ esac
+ fi
+])
diff --git a/src/grep/m4/langinfo_h.m4 b/src/grep/m4/langinfo_h.m4
new file mode 100644
index 0000000..87959f7
--- /dev/null
+++ b/src/grep/m4/langinfo_h.m4
@@ -0,0 +1,137 @@
+# langinfo_h.m4 serial 12
+dnl Copyright (C) 2009-2021 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([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_LANGINFO_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NL_LANGINFO])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_LANGINFO_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO])
+ REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO])
+])
diff --git a/src/grep/m4/largefile.m4 b/src/grep/m4/largefile.m4
new file mode 100644
index 0000000..fbde5e6
--- /dev/null
+++ b/src/grep/m4/largefile.m4
@@ -0,0 +1,180 @@
+# Enable large files on systems where this is not the default.
+# Enable support for files on Linux file systems with 64-bit inode numbers.
+
+# Copyright 1992-1996, 1998-2021 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# The following macro works around a problem in Autoconf's AC_FUNC_FSEEKO:
+# It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this
+# setting of _LARGEFILE_SOURCE is needed so that <stdio.h> declares fseeko
+# and ftello in C++ mode as well.
+AC_DEFUN([gl_SET_LARGEFILE_SOURCE],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_FUNC_FSEEKO
+ case "$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
+])
+
+# Work around a problem in Autoconf through at least 2.71 on glibc 2.34+
+# with _TIME_BITS. Also, work around a problem in autoconf <= 2.69:
+# AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5,
+# or configures them incorrectly in some cases.
+m4_version_prereq([2.70], [], [
+
+# _AC_SYS_LARGEFILE_TEST_INCLUDES
+# -------------------------------
+m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES],
+[#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+ int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1]];[]dnl
+])
+])# m4_version_prereq 2.70
+
+
+# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
+# CACHE-VAR,
+# DESCRIPTION,
+# PROLOGUE, [FUNCTION-BODY])
+# --------------------------------------------------------
+m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE],
+[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
+[while :; do
+ m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
+ [AC_LANG_PROGRAM([$5], [$6])],
+ [$3=no; break])
+ m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])(
+ [AC_LANG_PROGRAM([#undef $1
+#define $1 $2
+$5], [$6])],
+ [$3=$2; break])
+ $3=unknown
+ break
+done])
+case $$3 in #(
+ no | unknown) ;;
+ *) AC_DEFINE_UNQUOTED([$1], [$$3], [$4]);;
+esac
+rm -rf conftest*[]dnl
+])# _AC_SYS_LARGEFILE_MACRO_VALUE
+
+
+# AC_SYS_LARGEFILE
+# ----------------
+# By default, many hosts won't let programs access large files;
+# one must use special compiler options to get large-file access to work.
+# For more details about this brain damage please see:
+# http://www.unix.org/version2/whatsnew/lfs20mar.html
+# Additionally, on Linux file systems with 64-bit inodes a file that happens
+# to have a 64-bit inode number cannot be accessed by 32-bit applications on
+# Linux x86/x86_64. This can occur with file systems such as XFS and NFS.
+AC_DEFUN([AC_SYS_LARGEFILE],
+[AC_ARG_ENABLE(largefile,
+ [ --disable-largefile omit support for large files])
+AS_IF([test "$enable_largefile" != no],
+ [AC_CACHE_CHECK([for special C compiler options needed for large files],
+ ac_cv_sys_largefile_CC,
+ [ac_cv_sys_largefile_CC=no
+ if test "$GCC" != yes; then
+ ac_save_CC=$CC
+ while :; do
+ # IRIX 6.2 and later do not support large files by default,
+ # so use the C compiler's -n32 option if that helps.
+ AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])])
+ AC_COMPILE_IFELSE([], [break])
+ CC="$CC -n32"
+ AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break])
+ break
+ done
+ CC=$ac_save_CC
+ rm -f conftest.$ac_ext
+ fi])
+ if test "$ac_cv_sys_largefile_CC" != no; then
+ CC=$CC$ac_cv_sys_largefile_CC
+ fi
+
+ _AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
+ ac_cv_sys_file_offset_bits,
+ [Number of bits in a file offset, on hosts where this is settable.],
+ [_AC_SYS_LARGEFILE_TEST_INCLUDES])
+ AS_CASE([$ac_cv_sys_file_offset_bits],
+ [unknown],
+ [_AC_SYS_LARGEFILE_MACRO_VALUE([_LARGE_FILES], [1],
+ [ac_cv_sys_large_files],
+ [Define for large files, on AIX-style hosts.],
+ [_AC_SYS_LARGEFILE_TEST_INCLUDES])],
+ [64],
+ [gl_YEAR2038_BODY([])])])
+])# AC_SYS_LARGEFILE
+
+# Enable large files on systems where this is implemented by Gnulib, not by the
+# system headers.
+# Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib
+# overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively.
+AC_DEFUN([gl_LARGEFILE],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$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/src/grep/m4/lcmessage.m4 b/src/grep/m4/lcmessage.m4
new file mode 100644
index 0000000..a52700e
--- /dev/null
+++ b/src/grep/m4/lcmessage.m4
@@ -0,0 +1,35 @@
+# lcmessage.m4 serial 8
+dnl Copyright (C) 1995-2002, 2004-2005, 2008-2014, 2016, 2019-2021 Free
+dnl 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 be used in projects which are not available under
+dnl the GNU General Public License or the GNU Lesser 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 Lesser General Public License, and the rest of the GNU
+dnl gettext 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 $gt_cv_val_LC_MESSAGES = yes; then
+ AC_DEFINE([HAVE_LC_MESSAGES], [1],
+ [Define if your <locale.h> file defines LC_MESSAGES.])
+ fi
+])
diff --git a/src/grep/m4/lib-ld.m4 b/src/grep/m4/lib-ld.m4
new file mode 100644
index 0000000..076358d
--- /dev/null
+++ b/src/grep/m4/lib-ld.m4
@@ -0,0 +1,168 @@
+# lib-ld.m4 serial 10
+dnl Copyright (C) 1996-2003, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Subroutines of libtool.m4,
+dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
+dnl collision with libtool.m4.
+
+dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no.
+AC_DEFUN([AC_LIB_PROG_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($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/src/grep/m4/lib-link.m4 b/src/grep/m4/lib-link.m4
new file mode 100644
index 0000000..787efab
--- /dev/null
+++ b/src/grep/m4/lib-link.m4
@@ -0,0 +1,813 @@
+# lib-link.m4 serial 32
+dnl Copyright (C) 2001-2021 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 $LDFLAGS. Using breadth-first-seach.
+ LIB[]NAME=
+ LTLIB[]NAME=
+ INC[]NAME=
+ LIB[]NAME[]_PREFIX=
+ dnl HAVE_LIB${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/src/grep/m4/lib-prefix.m4 b/src/grep/m4/lib-prefix.m4
new file mode 100644
index 0000000..3c94db0
--- /dev/null
+++ b/src/grep/m4/lib-prefix.m4
@@ -0,0 +1,323 @@
+# lib-prefix.m4 serial 19
+dnl Copyright (C) 2001-2005, 2008-2021 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],
+ [#ifdef __ELF__
+ 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 "$acl_cv_libdirstems" | sed -e 's/^[^,]*,[^,]*,//' -e 's/,.*//'`
+changequote([,])dnl
+])
diff --git a/src/grep/m4/libsigsegv.m4 b/src/grep/m4/libsigsegv.m4
new file mode 100644
index 0000000..3255235
--- /dev/null
+++ b/src/grep/m4/libsigsegv.m4
@@ -0,0 +1,16 @@
+# libsigsegv.m4 serial 4
+dnl Copyright (C) 2002-2003, 2008-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible, Sam Steingold.
+
+AC_DEFUN([gl_LIBSIGSEGV],
+[
+ AC_LIB_HAVE_LINKFLAGS([sigsegv], [],
+ [#include <sigsegv.h>], [sigsegv_deinstall_handler();],
+ [no, consider installing GNU libsigsegv])
+ dnl Some other autoconf macros and clisp's configure use this variable.
+ gl_cv_lib_sigsegv="$ac_cv_libsigsegv"
+])
diff --git a/src/grep/m4/libunistring-base.m4 b/src/grep/m4/libunistring-base.m4
new file mode 100644
index 0000000..657bc0d
--- /dev/null
+++ b/src/grep/m4/libunistring-base.m4
@@ -0,0 +1,141 @@
+# libunistring-base.m4 serial 5
+dnl Copyright (C) 2010-2021 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 Paolo Bonzini and Bruno Haible.
+
+dnl gl_LIBUNISTRING_MODULE([VERSION], [Module])
+dnl Declares that the source files of Module should be compiled, unless we
+dnl are linking with libunistring and its version is >= the given VERSION.
+dnl Defines an automake conditional LIBUNISTRING_COMPILE_$MODULE that is
+dnl true if the source files of Module should be compiled.
+dnl This macro is to be used for public libunistring API, not for
+dnl undocumented API.
+dnl
+dnl You have to bump the VERSION argument to the next projected version
+dnl number each time you make a change that affects the behaviour of the
+dnl functions defined in Module (even if the sources of Module itself do not
+dnl change).
+
+AC_DEFUN([gl_LIBUNISTRING_MODULE],
+[
+ AC_REQUIRE([gl_LIBUNISTRING_LIB_PREPARE])
+ dnl Use the variables HAVE_LIBUNISTRING, LIBUNISTRING_VERSION from
+ dnl gl_LIBUNISTRING_CORE if that macro has been run.
+ AM_CONDITIONAL(AS_TR_CPP([LIBUNISTRING_COMPILE_$2]),
+ [gl_LIBUNISTRING_VERSION_CMP([$1])])
+])
+
+dnl gl_LIBUNISTRING_LIBHEADER([VERSION], [HeaderFile])
+dnl Declares that HeaderFile should be created, unless we are linking
+dnl with libunistring and its version is >= the given VERSION.
+dnl HeaderFile should be relative to the lib directory and end in '.h'.
+dnl Prepares for substituting LIBUNISTRING_HEADERFILE (to HeaderFile or empty).
+dnl
+dnl When we are linking with the already installed libunistring and its version
+dnl is < VERSION, we create HeaderFile here, because we may compile functions
+dnl (via gl_LIBUNISTRING_MODULE above) that are not contained in the installed
+dnl version.
+dnl When we are linking with the already installed libunistring and its version
+dnl is > VERSION, we don't create HeaderFile here: it could cause compilation
+dnl errors in other libunistring header files if some types are missing.
+dnl
+dnl You have to bump the VERSION argument to the next projected version
+dnl number each time you make a non-comment change to the HeaderFile.
+
+AC_DEFUN([gl_LIBUNISTRING_LIBHEADER],
+[
+ AC_REQUIRE([gl_LIBUNISTRING_LIB_PREPARE])
+ dnl Use the variables HAVE_LIBUNISTRING, LIBUNISTRING_VERSION from
+ dnl gl_LIBUNISTRING_CORE if that macro has been run.
+ if gl_LIBUNISTRING_VERSION_CMP([$1]); then
+ LIBUNISTRING_[]AS_TR_CPP([$2])='$2'
+ else
+ LIBUNISTRING_[]AS_TR_CPP([$2])=
+ fi
+ AC_SUBST([LIBUNISTRING_]AS_TR_CPP([$2]))
+])
+
+dnl Miscellaneous preparations/initializations.
+
+AC_DEFUN([gl_LIBUNISTRING_LIB_PREPARE],
+[
+ dnl Ensure that HAVE_LIBUNISTRING is fully determined at this point.
+ m4_ifdef([gl_LIBUNISTRING], [AC_REQUIRE([gl_LIBUNISTRING])])
+
+ AC_REQUIRE([AC_PROG_AWK])
+
+dnl Sed expressions to extract the parts of a version number.
+changequote(,)
+gl_libunistring_sed_extract_major='/^[0-9]/{s/^\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+gl_libunistring_sed_extract_minor='/^[0-9][0-9]*[.][0-9]/{s/^[0-9]*[.]\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+gl_libunistring_sed_extract_subminor='/^[0-9][0-9]*[.][0-9][0-9]*[.][0-9]/{s/^[0-9]*[.][0-9]*[.]\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+changequote([,])
+
+ if test "$HAVE_LIBUNISTRING" = yes; then
+ LIBUNISTRING_VERSION_MAJOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_major"`
+ LIBUNISTRING_VERSION_MINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_minor"`
+ LIBUNISTRING_VERSION_SUBMINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_subminor"`
+ fi
+])
+
+dnl gl_LIBUNISTRING_VERSION_CMP([VERSION])
+dnl Expands to a shell statement that evaluates to true if LIBUNISTRING_VERSION
+dnl is less than the VERSION argument.
+AC_DEFUN([gl_LIBUNISTRING_VERSION_CMP],
+[ { test "$HAVE_LIBUNISTRING" != yes \
+ || {
+ dnl AS_LITERAL_IF exists and works fine since autoconf-2.59 at least.
+ AS_LITERAL_IF([$1],
+ [dnl This is the optimized variant, that assumes the argument is a literal:
+ m4_pushdef([requested_version_major],
+ [gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^\([0-9]*\).*], [\1]), [])])
+ m4_pushdef([requested_version_minor],
+ [gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^[0-9]*[.]\([0-9]*\).*], [\1]), [$1])])
+ m4_pushdef([requested_version_subminor],
+ [gl_LIBUNISTRING_ARG_OR_ZERO(m4_bpatsubst([$1], [^[0-9]*[.][0-9]*[.]\([0-9]*\).*], [\1]), [$1])])
+ test $LIBUNISTRING_VERSION_MAJOR -lt requested_version_major \
+ || { test $LIBUNISTRING_VERSION_MAJOR -eq requested_version_major \
+ && { test $LIBUNISTRING_VERSION_MINOR -lt requested_version_minor \
+ || { test $LIBUNISTRING_VERSION_MINOR -eq requested_version_minor \
+ && test $LIBUNISTRING_VERSION_SUBMINOR -lt requested_version_subminor
+ }
+ }
+ }
+ m4_popdef([requested_version_subminor])
+ m4_popdef([requested_version_minor])
+ m4_popdef([requested_version_major])
+ ],
+ [dnl This is the unoptimized variant:
+ requested_version_major=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_major"`
+ requested_version_minor=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_minor"`
+ requested_version_subminor=`echo '$1' | sed -n -e "$gl_libunistring_sed_extract_subminor"`
+ test $LIBUNISTRING_VERSION_MAJOR -lt $requested_version_major \
+ || { test $LIBUNISTRING_VERSION_MAJOR -eq $requested_version_major \
+ && { test $LIBUNISTRING_VERSION_MINOR -lt $requested_version_minor \
+ || { test $LIBUNISTRING_VERSION_MINOR -eq $requested_version_minor \
+ && test $LIBUNISTRING_VERSION_SUBMINOR -lt $requested_version_subminor
+ }
+ }
+ }
+ ])
+ }
+ }])
+
+dnl gl_LIBUNISTRING_ARG_OR_ZERO([ARG], [ORIG]) expands to ARG if it is not the
+dnl same as ORIG, otherwise to 0.
+m4_define([gl_LIBUNISTRING_ARG_OR_ZERO], [m4_if([$1], [$2], [0], [$1])])
diff --git a/src/grep/m4/limits-h.m4 b/src/grep/m4/limits-h.m4
new file mode 100644
index 0000000..00c9fe9
--- /dev/null
+++ b/src/grep/m4/limits-h.m4
@@ -0,0 +1,44 @@
+dnl Check whether limits.h has needed features.
+
+dnl Copyright 2016-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert.
+
+AC_DEFUN_ONCE([gl_LIMITS_H],
+[
+ gl_CHECK_NEXT_HEADERS([limits.h])
+
+ AC_CACHE_CHECK([whether limits.h has WORD_BIT, BOOL_WIDTH etc.],
+ [gl_cv_header_limits_width],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
+ #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+ #endif
+ #include <limits.h>
+ long long llm = LLONG_MAX;
+ int wb = WORD_BIT;
+ int ullw = ULLONG_WIDTH;
+ int bw = BOOL_WIDTH;
+ ]])],
+ [gl_cv_header_limits_width=yes],
+ [gl_cv_header_limits_width=no])])
+ if test "$gl_cv_header_limits_width" = yes; then
+ LIMITS_H=
+ else
+ LIMITS_H=limits.h
+ fi
+ AC_SUBST([LIMITS_H])
+ AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"])
+])
+
+dnl Unconditionally enables the replacement of <limits.h>.
+AC_DEFUN([gl_REPLACE_LIMITS_H],
+[
+ AC_REQUIRE([gl_LIMITS_H])
+ LIMITS_H='limits.h'
+ AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"])
+])
diff --git a/src/grep/m4/localcharset.m4 b/src/grep/m4/localcharset.m4
new file mode 100644
index 0000000..04389fc
--- /dev/null
+++ b/src/grep/m4/localcharset.m4
@@ -0,0 +1,11 @@
+# localcharset.m4 serial 8
+dnl Copyright (C) 2002, 2004, 2006, 2009-2021 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/src/grep/m4/locale-fr.m4 b/src/grep/m4/locale-fr.m4
new file mode 100644
index 0000000..b61df7e
--- /dev/null
+++ b/src/grep/m4/locale-fr.m4
@@ -0,0 +1,253 @@
+# locale-fr.m4 serial 20
+dnl Copyright (C) 2003, 2005-2021 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([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([gt_LOCALE_FR_UTF8],
+[
+ AC_REQUIRE([AM_LANGINFO_CODESET])
+ AC_CACHE_CHECK([for a french Unicode locale], [gt_cv_locale_fr_utf8], [
+ 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 "$host_os" in
+ # Handle native Windows specially, because there setlocale() interprets
+ # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
+ # "fr" or "fra" as "French" or "French_France.1252",
+ # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
+ # "ja" as "Japanese" or "Japanese_Japan.932",
+ # and similar.
+ mingw*)
+ # Test for the hypothetical native Windows locale name.
+ if (LC_ALL=French_France.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_fr_utf8=French_France.65001
+ else
+ # None found.
+ gt_cv_locale_fr_utf8=none
+ fi
+ ;;
+ *)
+ # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+ # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
+ # configure script would override the LC_ALL setting. Likewise for
+ # LC_CTYPE, which is also set at the beginning of the configure script.
+ # Test for the usual locale name.
+ if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_fr_utf8=fr_FR
+ else
+ # Test for the locale name with explicit encoding suffix.
+ if (LC_ALL=fr_FR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_fr_utf8=fr_FR.UTF-8
+ else
+ # Test for the Solaris 7 locale name.
+ if (LC_ALL=fr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_fr_utf8=fr.UTF-8
+ else
+ # None found.
+ gt_cv_locale_fr_utf8=none
+ fi
+ fi
+ fi
+ ;;
+ esac
+ fi
+ rm -fr conftest*
+ ])
+ LOCALE_FR_UTF8=$gt_cv_locale_fr_utf8
+ AC_SUBST([LOCALE_FR_UTF8])
+])
diff --git a/src/grep/m4/locale-ja.m4 b/src/grep/m4/locale-ja.m4
new file mode 100644
index 0000000..cd94288
--- /dev/null
+++ b/src/grep/m4/locale-ja.m4
@@ -0,0 +1,143 @@
+# locale-ja.m4 serial 15
+dnl Copyright (C) 2003, 2005-2021 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([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/src/grep/m4/locale-tr.m4 b/src/grep/m4/locale-tr.m4
new file mode 100644
index 0000000..ecb8b60
--- /dev/null
+++ b/src/grep/m4/locale-tr.m4
@@ -0,0 +1,126 @@
+# locale-tr.m4 serial 13
+dnl Copyright (C) 2003, 2005-2021 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 turkish locale with UTF-8 encoding.
+AC_DEFUN([gt_LOCALE_TR_UTF8],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AM_LANGINFO_CODESET])
+ AC_CACHE_CHECK([for a turkish Unicode locale], [gt_cv_locale_tr_utf8], [
+ 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>
+#include <wctype.h>
+struct tm t;
+char buf[16];
+int main () {
+ /* On BeOS, 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. But BeOS does not
+ implement the Turkish upper-/lowercase mappings. Therefore, let this
+ program return 1 on BeOS. */
+ /* 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 tr_TR 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 eighth month, the second
+ character (should be U+011F: LATIN SMALL LETTER G WITH BREVE) is
+ two bytes long, with UTF-8 encoding. */
+ t.tm_year = 1992 - 1900; t.tm_mon = 8 - 1; t.tm_mday = 19;
+ if (strftime (buf, sizeof (buf), "%b", &t) < 4
+ || buf[1] != (char) 0xc4 || buf[2] != (char) 0x9f)
+ return 1;
+ /* Check whether the upper-/lowercase mappings are as expected for
+ Turkish. */
+ if (towupper ('i') != 0x0130 || towlower (0x0130) != 'i'
+ || towupper(0x0131) != 'I' || towlower ('I') != 0x0131)
+ return 1;
+ return 0;
+}
+ ]])])
+ if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
+ case "$host_os" in
+ # Handle native Windows specially, because there setlocale() interprets
+ # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
+ # "fr" or "fra" as "French" or "French_France.1252",
+ # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
+ # "ja" as "Japanese" or "Japanese_Japan.932",
+ # and similar.
+ mingw*)
+ # Test for the hypothetical native Windows locale name.
+ if (LC_ALL=Turkish_Turkey.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_tr_utf8=Turkish_Turkey.65001
+ else
+ # None found.
+ gt_cv_locale_tr_utf8=none
+ fi
+ ;;
+ *)
+ # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+ # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
+ # configure script would override the LC_ALL setting. Likewise for
+ # LC_CTYPE, which is also set at the beginning of the configure script.
+ # Test for the usual locale name.
+ if (LC_ALL=tr_TR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_tr_utf8=tr_TR
+ else
+ # Test for the locale name with explicit encoding suffix.
+ if (LC_ALL=tr_TR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_tr_utf8=tr_TR.UTF-8
+ else
+ # Test for the Solaris 7 locale name.
+ if (LC_ALL=tr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_tr_utf8=tr.UTF-8
+ else
+ # None found.
+ gt_cv_locale_tr_utf8=none
+ fi
+ fi
+ fi
+ ;;
+ esac
+ else
+ gt_cv_locale_tr_utf8=none
+ fi
+ rm -fr conftest*
+ ])
+ LOCALE_TR_UTF8=$gt_cv_locale_tr_utf8
+ AC_SUBST([LOCALE_TR_UTF8])
+])
diff --git a/src/grep/m4/locale-zh.m4 b/src/grep/m4/locale-zh.m4
new file mode 100644
index 0000000..1228be8
--- /dev/null
+++ b/src/grep/m4/locale-zh.m4
@@ -0,0 +1,137 @@
+# locale-zh.m4 serial 15
+dnl Copyright (C) 2003, 2005-2021 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([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=$gt_cv_locale_zh_CN
+ AC_SUBST([LOCALE_ZH_CN])
+])
diff --git a/src/grep/m4/locale_h.m4 b/src/grep/m4/locale_h.m4
new file mode 100644
index 0000000..444a381
--- /dev/null
+++ b/src/grep/m4/locale_h.m4
@@ -0,0 +1,174 @@
+# locale_h.m4 serial 28
+dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN_ONCE([gl_LOCALE_H],
+[
+ dnl Ensure to expand the default settings once only, before all statements
+ dnl that occur in other macros.
+ AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
+
+ dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_*
+ dnl members of 'struct lconv'.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
+ AC_REQUIRE([gl_STDDEF_H])
+
+ AC_REQUIRE([gl_LOCALE_T])
+
+ dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv'
+ dnl only if _LCONV_C99 is defined.
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$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/src/grep/m4/localeconv.m4 b/src/grep/m4/localeconv.m4
new file mode 100644
index 0000000..e29c7c3
--- /dev/null
+++ b/src/grep/m4/localeconv.m4
@@ -0,0 +1,22 @@
+# localeconv.m4 serial 1
+dnl Copyright (C) 2012-2021 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])
+
+ if test $REPLACE_STRUCT_LCONV = 1; then
+ REPLACE_LOCALECONV=1
+ fi
+])
+
+# Prerequisites of lib/localeconv.c.
+AC_DEFUN([gl_PREREQ_LOCALECONV],
+[
+ AC_CHECK_MEMBERS([struct lconv.decimal_point], [], [],
+ [[#include <locale.h>]])
+])
diff --git a/src/grep/m4/localename.m4 b/src/grep/m4/localename.m4
new file mode 100644
index 0000000..2bff33d
--- /dev/null
+++ b/src/grep/m4/localename.m4
@@ -0,0 +1,41 @@
+# localename.m4 serial 8
+dnl Copyright (C) 2007, 2009-2021 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_LOCALENAME],
+[
+ AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
+ AC_REQUIRE([gl_LOCALE_T])
+ AC_REQUIRE([gt_LC_MESSAGES])
+ AC_REQUIRE([gt_INTL_THREAD_LOCALE_NAME])
+ AC_REQUIRE([gt_INTL_MACOSX])
+ AC_CHECK_HEADERS_ONCE([langinfo.h])
+ if test $HAVE_LOCALE_T = 1; then
+ AC_CHECK_FUNCS_ONCE([newlocale duplocale freelocale])
+ gl_func_newlocale="$ac_cv_func_newlocale"
+ gl_func_duplocale="$ac_cv_func_duplocale"
+ gl_func_freelocale="$ac_cv_func_freelocale"
+ else
+ dnl In 2019, some versions of z/OS lack the locale_t type and have broken
+ dnl newlocale, duplocale, freelocale functions.
+ gl_func_newlocale=no
+ gl_func_duplocale=no
+ gl_func_freelocale=no
+ fi
+ if test $gl_func_newlocale != yes; then
+ HAVE_NEWLOCALE=0
+ fi
+ if test $gl_func_duplocale != yes; then
+ HAVE_DUPLOCALE=0
+ fi
+ if test $gl_func_freelocale != yes; then
+ HAVE_FREELOCALE=0
+ fi
+ if test $gt_localename_enhances_locale_funcs = yes; then
+ REPLACE_NEWLOCALE=1
+ REPLACE_DUPLOCALE=1
+ REPLACE_FREELOCALE=1
+ fi
+])
diff --git a/src/grep/m4/lock.m4 b/src/grep/m4/lock.m4
new file mode 100644
index 0000000..d68c12d
--- /dev/null
+++ b/src/grep/m4/lock.m4
@@ -0,0 +1,47 @@
+# lock.m4 serial 14
+dnl Copyright (C) 2005-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+AC_DEFUN([gl_LOCK],
+[
+ AC_REQUIRE([gl_THREADLIB])
+ if test "$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 $has_rwlock; then
+ gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER
+ fi
+ # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM(
+ [[#include <pthread.h>]],
+ [[
+#if __FreeBSD__ == 4
+error "No, in FreeBSD 4.0 recursive mutexes actually don't work."
+#elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \
+ && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070)
+error "No, in Mac OS X < 10.7 recursive mutexes actually don't work."
+#else
+int x = (int)PTHREAD_MUTEX_RECURSIVE;
+return !x;
+#endif
+ ]])],
+ [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1],
+ [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])])
+ fi
+ gl_PREREQ_LOCK
+])
+
+# Prerequisites of lib/glthread/lock.c.
+AC_DEFUN([gl_PREREQ_LOCK], [:])
diff --git a/src/grep/m4/lseek.m4 b/src/grep/m4/lseek.m4
new file mode 100644
index 0000000..0af6378
--- /dev/null
+++ b/src/grep/m4/lseek.m4
@@ -0,0 +1,72 @@
+# lseek.m4 serial 11
+dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_LSEEK],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AC_PROG_CC])
+ AC_CHECK_HEADERS_ONCE([unistd.h])
+ AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe],
+ [case "$host_os" in
+ mingw*)
+ dnl Native Windows.
+ dnl The result of lseek (fd, (off_t)0, SEEK_CUR) or
+ dnl SetFilePointer(handle, 0, NULL, FILE_CURRENT)
+ dnl for a pipe depends on the environment: In a Cygwin 1.5
+ dnl environment it succeeds (wrong); in a Cygwin 1.7 environment
+ dnl it fails with a wrong errno value.
+ gl_cv_func_lseek_pipe=no
+ ;;
+ *)
+ if test $cross_compiling = no; then
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h> /* for off_t */
+#include <stdio.h> /* for SEEK_CUR */
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else /* on Windows with MSVC */
+# include <io.h>
+#endif
+]GL_MDA_DEFINES],
+[[
+ /* Exit with success only if stdin is seekable. */
+ return lseek (0, (off_t)0, SEEK_CUR) < 0;
+]])],
+ [if test -s conftest$ac_exeext \
+ && ./conftest$ac_exeext < conftest.$ac_ext \
+ && test 1 = "`echo hi \
+ | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then
+ gl_cv_func_lseek_pipe=yes
+ else
+ gl_cv_func_lseek_pipe=no
+ fi
+ ],
+ [gl_cv_func_lseek_pipe=no])
+ else
+ AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([[
+#if defined __BEOS__
+/* BeOS mistakenly return 0 when trying to seek on pipes. */
+ Choke me.
+#endif]])],
+ [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
+ fi
+ ;;
+ esac
+ ])
+ if test $gl_cv_func_lseek_pipe = no; then
+ REPLACE_LSEEK=1
+ AC_DEFINE([LSEEK_PIPE_BROKEN], [1],
+ [Define to 1 if lseek does not detect pipes.])
+ fi
+
+ AC_REQUIRE([gl_SYS_TYPES_H])
+ if test $WINDOWS_64_BIT_OFF_T = 1; then
+ REPLACE_LSEEK=1
+ fi
+])
diff --git a/src/grep/m4/lstat.m4 b/src/grep/m4/lstat.m4
new file mode 100644
index 0000000..62e9db2
--- /dev/null
+++ b/src/grep/m4/lstat.m4
@@ -0,0 +1,79 @@
+# serial 33
+
+# Copyright (C) 1997-2001, 2003-2021 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 "$host_os" in
+ linux-* | linux)
+ # Guess yes on Linux systems.
+ gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
+ *-gnu* | gnu*)
+ # Guess yes on glibc systems.
+ gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
+ mingw*)
+ # Guess no on native Windows.
+ gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;;
+ *)
+ # If we don't know, obey --enable-cross-guesses.
+ gl_cv_func_lstat_dereferences_slashed_symlink="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.sym conftest.file
+ ])
+ case "$gl_cv_func_lstat_dereferences_slashed_symlink" in
+ *yes)
+ AC_DEFINE_UNQUOTED([LSTAT_FOLLOWS_SLASHED_SYMLINK], [1],
+ [Define to 1 if 'lstat' dereferences a symlink specified
+ with a trailing slash.])
+ ;;
+ esac
+])
diff --git a/src/grep/m4/malloc.m4 b/src/grep/m4/malloc.m4
new file mode 100644
index 0000000..972e808
--- /dev/null
+++ b/src/grep/m4/malloc.m4
@@ -0,0 +1,174 @@
+# malloc.m4 serial 27
+dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# This is adapted with modifications from upstream Autoconf here:
+# https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=v2.70#n949
+AC_DEFUN([_AC_FUNC_MALLOC_IF],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+ AC_CACHE_CHECK([whether malloc (0) returns nonnull],
+ [ac_cv_func_malloc_0_nonnull],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdlib.h>
+ ]],
+ [[void *p = malloc (0);
+ int result = !p;
+ free (p);
+ return result;]])
+ ],
+ [ac_cv_func_malloc_0_nonnull=yes],
+ [ac_cv_func_malloc_0_nonnull=no],
+ [case "$host_os" in
+ # Guess yes on platforms where we know the result.
+ *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
+ | gnu* | *-musl* | 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])
+ if test $REPLACE_MALLOC = 0; then
+ _AC_FUNC_MALLOC_IF([], [REPLACE_MALLOC=1])
+ fi
+])
+
+# gl_FUNC_MALLOC_PTRDIFF
+# ----------------------
+# Test whether malloc (N) reliably fails when N exceeds PTRDIFF_MAX,
+# and replace malloc otherwise.
+AC_DEFUN([gl_FUNC_MALLOC_PTRDIFF],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF])
+ test "$gl_cv_malloc_ptrdiff" = yes || REPLACE_MALLOC=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 "$gl_cv_func_malloc_posix" = yes; then
+ AC_DEFINE([HAVE_MALLOC_POSIX], [1],
+ [Define if malloc, realloc, and calloc set errno on allocation failure.])
+ else
+ REPLACE_MALLOC=1
+ fi
+])
+
+# Test whether malloc, realloc, calloc set errno to ENOMEM on failure.
+# Set gl_cv_func_malloc_posix to yes or no accordingly.
+AC_DEFUN([gl_CHECK_MALLOC_POSIX],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_CACHE_CHECK([whether malloc, realloc, calloc set errno on failure],
+ [gl_cv_func_malloc_posix],
+ [
+ dnl It is too dangerous to try to allocate a large amount of memory:
+ dnl some systems go to their knees when you do that. So assume that
+ dnl all Unix implementations of the function set errno on failure,
+ dnl except on those platforms where we have seen 'test-malloc-gnu',
+ dnl 'test-realloc-gnu', 'test-calloc-gnu' fail.
+ case "$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/src/grep/m4/malloca.m4 b/src/grep/m4/malloca.m4
new file mode 100644
index 0000000..06ed2c6
--- /dev/null
+++ b/src/grep/m4/malloca.m4
@@ -0,0 +1,14 @@
+# malloca.m4 serial 2
+dnl Copyright (C) 2003-2004, 2006-2007, 2009-2021 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/src/grep/m4/manywarnings.m4 b/src/grep/m4/manywarnings.m4
new file mode 100644
index 0000000..872ea58
--- /dev/null
+++ b/src/grep/m4/manywarnings.m4
@@ -0,0 +1,209 @@
+# manywarnings.m4 serial 23
+dnl Copyright (C) 2008-2021 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
+
+# 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 "*)
+ ;;
+ *)
+ gl_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, $@)])
+
+# Specialization for _AC_LANG = C.
+AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
+[
+ AC_LANG_PUSH([C])
+
+ dnl First, check for some issues that only occur when combining multiple
+ dnl gcc warning categories.
+ AC_REQUIRE([AC_PROG_CC])
+ if test -n "$GCC"; then
+
+ dnl Check if -Wextra -Werror -Wno-missing-field-initializers is supported
+ dnl with the current $CC $CFLAGS $CPPFLAGS.
+ AC_CACHE_CHECK([whether -Wno-missing-field-initializers is supported],
+ [gl_cv_cc_nomfi_supported],
+ [gl_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Wextra -Werror -Wno-missing-field-initializers"
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[]], [[]])],
+ [gl_cv_cc_nomfi_supported=yes],
+ [gl_cv_cc_nomfi_supported=no])
+ CFLAGS="$gl_save_CFLAGS"
+ ])
+
+ if test "$gl_cv_cc_nomfi_supported" = yes; then
+ dnl Now check whether -Wno-missing-field-initializers is needed
+ dnl for the { 0, } construct.
+ AC_CACHE_CHECK([whether -Wno-missing-field-initializers is needed],
+ [gl_cv_cc_nomfi_needed],
+ [gl_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Wextra -Werror"
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[int f (void)
+ {
+ typedef struct { int a; int b; } s_t;
+ s_t s1 = { 0, };
+ return s1.b;
+ }
+ ]],
+ [[]])],
+ [gl_cv_cc_nomfi_needed=no],
+ [gl_cv_cc_nomfi_needed=yes])
+ CFLAGS="$gl_save_CFLAGS"
+ ])
+ fi
+
+ 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"
+ ])
+
+ fi
+
+ # 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 -fno-common \
+ -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-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
+ gl_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.
+ gl_AS_VAR_APPEND([$1], [' -Warray-bounds=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wattribute-alias=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wformat-overflow=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wformat=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wformat-truncation=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wimplicit-fallthrough=5'])
+ gl_AS_VAR_APPEND([$1], [' -Wshift-overflow=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wunused-const-variable=2'])
+ gl_AS_VAR_APPEND([$1], [' -Wvla-larger-than=4031'])
+
+ # These are needed for older GCC versions.
+ if test -n "$GCC"; then
+ case `($CC --version) 2>/dev/null` in
+ 'gcc (GCC) '[[0-3]].* | \
+ 'gcc (GCC) '4.[[0-7]].*)
+ gl_AS_VAR_APPEND([$1], [' -fdiagnostics-show-option'])
+ gl_AS_VAR_APPEND([$1], [' -funit-at-a-time'])
+ ;;
+ esac
+ fi
+
+ # Disable specific options as needed.
+ if test "$gl_cv_cc_nomfi_needed" = yes; then
+ gl_AS_VAR_APPEND([$1], [' -Wno-missing-field-initializers'])
+ fi
+
+ if test "$gl_cv_cc_uninitialized_supported" = no; then
+ gl_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
+ gl_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/src/grep/m4/mbchar.m4 b/src/grep/m4/mbchar.m4
new file mode 100644
index 0000000..b6842bb
--- /dev/null
+++ b/src/grep/m4/mbchar.m4
@@ -0,0 +1,13 @@
+# mbchar.m4 serial 9
+dnl Copyright (C) 2005-2007, 2009-2021 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 autoconf tests required for use of mbchar.m4
+dnl From Bruno Haible.
+
+AC_DEFUN([gl_MBCHAR],
+[
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+])
diff --git a/src/grep/m4/mbiter.m4 b/src/grep/m4/mbiter.m4
new file mode 100644
index 0000000..0d57379
--- /dev/null
+++ b/src/grep/m4/mbiter.m4
@@ -0,0 +1,14 @@
+# mbiter.m4 serial 7
+dnl Copyright (C) 2005, 2008-2021 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 autoconf tests required for use of mbiter.h
+dnl From Bruno Haible.
+
+AC_DEFUN([gl_MBITER],
+[
+ AC_REQUIRE([AC_TYPE_MBSTATE_T])
+ :
+])
diff --git a/src/grep/m4/mbrlen.m4 b/src/grep/m4/mbrlen.m4
new file mode 100644
index 0000000..6abf817
--- /dev/null
+++ b/src/grep/m4/mbrlen.m4
@@ -0,0 +1,238 @@
+# mbrlen.m4 serial 11 -*- coding: utf-8 -*-
+dnl Copyright (C) 2008, 2010-2021 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_MBRLEN],
+[
+ AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+
+ AC_REQUIRE([AC_TYPE_MBSTATE_T])
+ AC_REQUIRE([gl_FUNC_MBRTOWC])
+ AC_CHECK_FUNCS_ONCE([mbrlen])
+ if test $ac_cv_func_mbrlen = no; then
+ HAVE_MBRLEN=0
+ AC_CHECK_DECLS([mbrlen],,, [[
+ #include <wchar.h>
+ ]])
+ if test $ac_cv_have_decl_mbrlen = yes; then
+ dnl On Minix 3.1.8, the system's <wchar.h> declares mbrlen() although
+ dnl it does not have the function. Avoid a collision with gnulib's
+ dnl replacement.
+ REPLACE_MBRLEN=1
+ fi
+ else
+ dnl Most bugs affecting the system's mbrtowc function also affect the
+ dnl mbrlen function. So override mbrlen whenever mbrtowc is overridden.
+ dnl We could also run the individual tests below; the results would be
+ dnl the same.
+ if test $REPLACE_MBRTOWC = 1; then
+ REPLACE_MBRLEN=1
+ fi
+ fi
+])
+
+dnl Test whether mbrlen puts the state into non-initial state when parsing an
+dnl incomplete multibyte character.
+dnl Result is gl_cv_func_mbrlen_incomplete_state.
+
+AC_DEFUN([gl_MBRLEN_INCOMPLETE_STATE],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_JA])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether mbrlen handles incomplete characters],
+ [gl_cv_func_mbrlen_incomplete_state],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on AIX and OSF/1.
+ aix* | osf*) gl_cv_func_mbrlen_incomplete_state="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrlen_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;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrlen (input + 1, 1, &state) == (size_t)(-2))
+ if (mbsinit (&state))
+ return 1;
+ }
+ return 0;
+}]])],
+ [gl_cv_func_mbrlen_incomplete_state=yes],
+ [gl_cv_func_mbrlen_incomplete_state=no],
+ [])
+ fi
+ ])
+])
+
+dnl Test whether mbrlen, 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_mbrlen_retval.
+
+AC_DEFUN([gl_MBRLEN_RETVAL],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_FR_UTF8])
+ AC_REQUIRE([gt_LOCALE_JA])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether mbrlen has a correct return value],
+ [gl_cv_func_mbrlen_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 and Solaris.
+ hpux* | solaris*) gl_cv_func_mbrlen_retval="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrlen_retval="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <string.h>
+#include <wchar.h>
+int main ()
+{
+ int result = 0;
+ /* This fails on Solaris. */
+ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ char input[] = "B\303\274\303\237er"; /* "Büßer" */
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrlen (input + 1, 1, &state) == (size_t)(-2))
+ {
+ input[1] = '\0';
+ if (mbrlen (input + 2, 5, &state) != 1)
+ result |= 1;
+ }
+ }
+ /* This fails on HP-UX 11.11. */
+ if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
+ {
+ char input[] = "B\217\253\344\217\251\316er"; /* "Büßer" */
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrlen (input + 1, 1, &state) == (size_t)(-2))
+ {
+ input[1] = '\0';
+ if (mbrlen (input + 2, 5, &state) != 2)
+ result |= 2;
+ }
+ }
+ return result;
+}]])],
+ [gl_cv_func_mbrlen_retval=yes],
+ [gl_cv_func_mbrlen_retval=no],
+ [])
+ fi
+ ])
+])
+
+dnl Test whether mbrlen, when parsing a NUL character, correctly returns 0.
+dnl Result is gl_cv_func_mbrlen_nul_retval.
+
+AC_DEFUN([gl_MBRLEN_NUL_RETVAL],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_ZH_CN])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether mbrlen returns 0 when parsing a NUL character],
+ [gl_cv_func_mbrlen_nul_retval],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on Solaris 9.
+ solaris2.9) gl_cv_func_mbrlen_nul_retval="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_mbrlen_nul_retval="guessing yes" ;;
+ esac
+changequote([,])dnl
+ if test $LOCALE_ZH_CN != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <string.h>
+#include <wchar.h>
+int main ()
+{
+ /* This crashes on Solaris 9 inside __mbrtowc_dense_gb18030. */
+ if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
+ {
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrlen ("", 1, &state) != 0)
+ return 1;
+ }
+ return 0;
+}]])],
+ [gl_cv_func_mbrlen_nul_retval=yes],
+ [gl_cv_func_mbrlen_nul_retval=no],
+ [])
+ fi
+ ])
+])
+
+dnl Test whether mbrlen returns the correct value on empty input.
+
+AC_DEFUN([gl_MBRLEN_EMPTY_INPUT],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether mbrlen works on empty input],
+ [gl_cv_func_mbrlen_empty_input],
+ [
+ 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 glibc systems.
+ aix* | *-gnu* | gnu*) gl_cv_func_mbrlen_empty_input="guessing no" ;;
+ *) gl_cv_func_mbrlen_empty_input="guessing yes" ;;
+ esac
+changequote([,])dnl
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+ #include <wchar.h>
+ static mbstate_t mbs;
+ int
+ main (void)
+ {
+ return mbrlen ("", 0, &mbs) != (size_t) -2;
+ }]])],
+ [gl_cv_func_mbrlen_empty_input=yes],
+ [gl_cv_func_mbrlen_empty_input=no],
+ [:])
+ ])
+])
+
+# Prerequisites of lib/mbrlen.c.
+AC_DEFUN([gl_PREREQ_MBRLEN], [
+ :
+])
diff --git a/src/grep/m4/mbrtowc.m4 b/src/grep/m4/mbrtowc.m4
new file mode 100644
index 0000000..1d4e73d
--- /dev/null
+++ b/src/grep/m4/mbrtowc.m4
@@ -0,0 +1,790 @@
+# mbrtowc.m4 serial 38 -*- coding: utf-8 -*-
+dnl Copyright (C) 2001-2002, 2004-2005, 2008-2021 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*) LIB_MBRTOWC= ;;
+ *)
+ gl_WEAK_SYMBOLS
+ case "$gl_cv_have_weak" in
+ *yes) LIB_MBRTOWC= ;;
+ *) LIB_MBRTOWC="$LIBPTHREAD" ;;
+ esac
+ ;;
+ esac
+ else
+ LIB_MBRTOWC=
+ fi
+ dnl LIB_MBRTOWC is expected to be '-pthread' or '-lpthread' on AIX
+ dnl with gcc or xlc, and empty otherwise.
+ 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([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 (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ char input[] = "B\303\274\303\237er"; /* "Büßer" */
+ mbstate_t state;
+ wchar_t wc;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2))
+ {
+ input[1] = '\0';
+ if (mbrtowc (&wc, input + 2, 5, &state) != 1)
+ result |= 1;
+ }
+ found_some_locale = 1;
+ }
+ /* This fails on HP-UX 11.11. */
+ if (setlocale (LC_ALL, "$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],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on AIX and glibc systems.
+ aix* | *-gnu* | gnu*) gl_cv_func_mbrtowc_empty_input="guessing no" ;;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_mbrtowc_empty_input="guessing yes" ;;
+ *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;;
+ esac
+changequote([,])dnl
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+ #include <wchar.h>
+ static wchar_t wc;
+ static mbstate_t mbs;
+ int
+ main (void)
+ {
+ return mbrtowc (&wc, "", 0, &mbs) != (size_t) -2;
+ }]])],
+ [gl_cv_func_mbrtowc_empty_input=yes],
+ [gl_cv_func_mbrtowc_empty_input=no],
+ [:])
+ ])
+])
+
+dnl Test whether mbrtowc reports encoding errors in the C locale.
+dnl Although POSIX was never intended to allow this, the GNU C Library
+dnl and other implementations do it. See:
+dnl https://sourceware.org/bugzilla/show_bug.cgi?id=19932
+
+AC_DEFUN([gl_MBRTOWC_C_LOCALE],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether the C locale is free of encoding errors],
+ [gl_cv_func_mbrtowc_C_locale_sans_EILSEQ],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+ gl_cv_func_mbrtowc_C_locale_sans_EILSEQ="$gl_cross_guess_normal"
+
+ 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" ;;
+ 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/src/grep/m4/mbsinit.m4 b/src/grep/m4/mbsinit.m4
new file mode 100644
index 0000000..dc6e10d
--- /dev/null
+++ b/src/grep/m4/mbsinit.m4
@@ -0,0 +1,44 @@
+# mbsinit.m4 serial 9
+dnl Copyright (C) 2008, 2010-2021 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/src/grep/m4/mbslen.m4 b/src/grep/m4/mbslen.m4
new file mode 100644
index 0000000..0801fdf
--- /dev/null
+++ b/src/grep/m4/mbslen.m4
@@ -0,0 +1,16 @@
+# mbslen.m4 serial 3
+dnl Copyright (C) 2010-2021 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_MBSLEN],
+[
+ AC_REQUIRE([gl_STRING_H_DEFAULTS])
+ AC_CHECK_FUNCS_ONCE([mbslen])
+ if test $ac_cv_func_mbslen = yes; then
+ HAVE_MBSLEN=1
+ else
+ HAVE_MBSLEN=0
+ fi
+])
diff --git a/src/grep/m4/mbsrtowcs.m4 b/src/grep/m4/mbsrtowcs.m4
new file mode 100644
index 0000000..cf8e962
--- /dev/null
+++ b/src/grep/m4/mbsrtowcs.m4
@@ -0,0 +1,141 @@
+# mbsrtowcs.m4 serial 14
+dnl Copyright (C) 2008-2021 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
+ 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 $LOCALE_ZH_CN != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <string.h>
+#include <wchar.h>
+int main ()
+{
+ int result = 0;
+ /* Test whether the function supports a NULL destination argument.
+ This fails on native Windows. */
+ if (setlocale (LC_ALL, "$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 (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ const char input[] = "B\303\274\303\237er";
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2))
+ if (!mbsinit (&state))
+ {
+ const char *src = input + 2;
+ if (mbsrtowcs (NULL, &src, 10, &state) != 4)
+ result |= 2;
+ }
+ }
+ if (setlocale (LC_ALL, "$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 (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/src/grep/m4/mbstate_t.m4 b/src/grep/m4/mbstate_t.m4
new file mode 100644
index 0000000..e7fe358
--- /dev/null
+++ b/src/grep/m4/mbstate_t.m4
@@ -0,0 +1,34 @@
+# mbstate_t.m4 serial 14
+dnl Copyright (C) 2000-2002, 2008-2021 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/src/grep/m4/mbtowc.m4 b/src/grep/m4/mbtowc.m4
new file mode 100644
index 0000000..7fc74c9
--- /dev/null
+++ b/src/grep/m4/mbtowc.m4
@@ -0,0 +1,24 @@
+# mbtowc.m4 serial 3
+dnl Copyright (C) 2011-2021 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])
+
+ AC_CHECK_FUNCS([mbtowc])
+ if test $ac_cv_func_mbtowc = no; then
+ HAVE_MBTOWC=0
+ else
+ if false; then
+ REPLACE_MBTOWC=1
+ fi
+ fi
+])
+
+# Prerequisites of lib/mbtowc.c.
+AC_DEFUN([gl_PREREQ_MBTOWC], [
+ :
+])
diff --git a/src/grep/m4/memchr.m4 b/src/grep/m4/memchr.m4
new file mode 100644
index 0000000..ca08192
--- /dev/null
+++ b/src/grep/m4/memchr.m4
@@ -0,0 +1,106 @@
+# memchr.m4 serial 18
+dnl Copyright (C) 2002-2004, 2009-2021 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/src/grep/m4/mempcpy.m4 b/src/grep/m4/mempcpy.m4
new file mode 100644
index 0000000..f9d9ec8
--- /dev/null
+++ b/src/grep/m4/mempcpy.m4
@@ -0,0 +1,26 @@
+# mempcpy.m4 serial 12
+dnl Copyright (C) 2003-2004, 2006-2007, 2009-2021 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])
+ AC_CHECK_FUNCS([mempcpy])
+ if test $ac_cv_func_mempcpy = no; then
+ HAVE_MEMPCPY=0
+ fi
+])
+
+# Prerequisites of lib/mempcpy.c.
+AC_DEFUN([gl_PREREQ_MEMPCPY], [
+ :
+])
diff --git a/src/grep/m4/memrchr.m4 b/src/grep/m4/memrchr.m4
new file mode 100644
index 0000000..40f61c5
--- /dev/null
+++ b/src/grep/m4/memrchr.m4
@@ -0,0 +1,23 @@
+# memrchr.m4 serial 11
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2021 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/src/grep/m4/minmax.m4 b/src/grep/m4/minmax.m4
new file mode 100644
index 0000000..e21a687
--- /dev/null
+++ b/src/grep/m4/minmax.m4
@@ -0,0 +1,44 @@
+# minmax.m4 serial 4
+dnl Copyright (C) 2005, 2009-2021 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/src/grep/m4/mmap-anon.m4 b/src/grep/m4/mmap-anon.m4
new file mode 100644
index 0000000..e47aa2d
--- /dev/null
+++ b/src/grep/m4/mmap-anon.m4
@@ -0,0 +1,55 @@
+# mmap-anon.m4 serial 12
+dnl Copyright (C) 2005, 2007, 2009-2021 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 $gl_have_mmap_anonymous = yes; then
+ AC_DEFINE([HAVE_MAP_ANONYMOUS], [1],
+ [Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including
+ config.h and <sys/mman.h>.])
+ fi
+ fi
+])
diff --git a/src/grep/m4/mode_t.m4 b/src/grep/m4/mode_t.m4
new file mode 100644
index 0000000..3bd4b89
--- /dev/null
+++ b/src/grep/m4/mode_t.m4
@@ -0,0 +1,26 @@
+# mode_t.m4 serial 2
+dnl Copyright (C) 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# For using mode_t, it's sufficient to use AC_TYPE_MODE_T and
+# include <sys/types.h>.
+
+# Define PROMOTED_MODE_T to the type that is the result of "default argument
+# promotion" (ISO C 6.5.2.2.(6)) of the type mode_t.
+AC_DEFUN([gl_PROMOTED_TYPE_MODE_T],
+[
+ AC_REQUIRE([AC_TYPE_MODE_T])
+ AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [
+ dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int',
+ dnl and to itself otherwise. This assumption is not guaranteed by the ISO C
+ dnl standard, but we don't know of any real-world counterexamples.
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]],
+ [[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])],
+ [gl_cv_promoted_mode_t='int'],
+ [gl_cv_promoted_mode_t='mode_t'])
+ ])
+ AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$gl_cv_promoted_mode_t],
+ [Define to the type that is the result of default argument promotions of type mode_t.])
+])
diff --git a/src/grep/m4/msvc-inval.m4 b/src/grep/m4/msvc-inval.m4
new file mode 100644
index 0000000..3ba5b4e
--- /dev/null
+++ b/src/grep/m4/msvc-inval.m4
@@ -0,0 +1,19 @@
+# msvc-inval.m4 serial 1
+dnl Copyright (C) 2011-2021 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/src/grep/m4/msvc-nothrow.m4 b/src/grep/m4/msvc-nothrow.m4
new file mode 100644
index 0000000..aae25ce
--- /dev/null
+++ b/src/grep/m4/msvc-nothrow.m4
@@ -0,0 +1,10 @@
+# msvc-nothrow.m4 serial 1
+dnl Copyright (C) 2011-2021 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/src/grep/m4/multiarch.m4 b/src/grep/m4/multiarch.m4
new file mode 100644
index 0000000..f1678d9
--- /dev/null
+++ b/src/grep/m4/multiarch.m4
@@ -0,0 +1,65 @@
+# multiarch.m4 serial 9
+dnl Copyright (C) 2008-2021 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 $gl_cv_c_multiarch = yes; then
+ APPLE_UNIVERSAL_BUILD=1
+ else
+ APPLE_UNIVERSAL_BUILD=0
+ fi
+ AC_SUBST([APPLE_UNIVERSAL_BUILD])
+])
diff --git a/src/grep/m4/musl.m4 b/src/grep/m4/musl.m4
new file mode 100644
index 0000000..60bd62a
--- /dev/null
+++ b/src/grep/m4/musl.m4
@@ -0,0 +1,18 @@
+# musl.m4 serial 3
+dnl Copyright (C) 2019-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Test for musl libc, despite the musl libc authors don't like it
+# <https://wiki.musl-libc.org/faq.html>
+# <https://lists.gnu.org/archive/html/bug-gnulib/2018-02/msg00079.html>.
+# From Bruno Haible.
+
+AC_DEFUN_ONCE([gl_MUSL_LIBC],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ *-musl*) AC_DEFINE([MUSL_LIBC], [1], [Define to 1 on musl libc.]) ;;
+ esac
+])
diff --git a/src/grep/m4/nanosleep.m4 b/src/grep/m4/nanosleep.m4
new file mode 100644
index 0000000..baebe88
--- /dev/null
+++ b/src/grep/m4/nanosleep.m4
@@ -0,0 +1,161 @@
+# serial 40
+
+dnl From Jim Meyering.
+dnl Check for the nanosleep function.
+dnl If not found, use the supplied replacement.
+dnl
+
+# Copyright (C) 1999-2001, 2003-2021 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_HEADERS_ONCE([sys/time.h])
+ AC_REQUIRE([gl_FUNC_SELECT])
+
+ AC_CHECK_DECLS_ONCE([alarm])
+
+ nanosleep_save_libs=$LIBS
+
+ # Solaris 2.5.1 needs -lposix4 to get the nanosleep function.
+ # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
+ LIB_NANOSLEEP=
+ AC_SUBST([LIB_NANOSLEEP])
+ AC_SEARCH_LIBS([nanosleep], [rt posix4],
+ [test "$ac_cv_search_nanosleep" = "none required" ||
+ LIB_NANOSLEEP=$ac_cv_search_nanosleep])
+ if test "x$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>
+ #if HAVE_SYS_TIME_H
+ #include <sys/time.h>
+ #endif
+ #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;
+ #endif
+ return 0;
+ }]])],
+ [gl_cv_func_nanosleep=yes],
+ [case $? in dnl (
+ 4|5|6) gl_cv_func_nanosleep='no (mishandles large arguments)';; dnl (
+ *) gl_cv_func_nanosleep=no;;
+ esac],
+ [case "$host_os" in dnl ((
+ 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.])
+ ;;
+ *)
+ # The replacement uses select(). Add $LIBSOCKET to $LIB_NANOSLEEP.
+ for ac_lib in $LIBSOCKET; do
+ case " $LIB_NANOSLEEP " in
+ *" $ac_lib "*) ;;
+ *) LIB_NANOSLEEP="$LIB_NANOSLEEP $ac_lib";;
+ esac
+ done
+ ;;
+ esac
+ ;;
+ esac
+ else
+ HAVE_NANOSLEEP=0
+ fi
+ LIBS=$nanosleep_save_libs
+])
+
+# Prerequisites of lib/nanosleep.c.
+AC_DEFUN([gl_PREREQ_NANOSLEEP],
+[
+ AC_CHECK_HEADERS_ONCE([sys/select.h])
+ gl_PREREQ_SIG_HANDLER_H
+])
diff --git a/src/grep/m4/netinet_in_h.m4 b/src/grep/m4/netinet_in_h.m4
new file mode 100644
index 0000000..c555596
--- /dev/null
+++ b/src/grep/m4/netinet_in_h.m4
@@ -0,0 +1,31 @@
+# netinet_in_h.m4 serial 5
+dnl Copyright (C) 2006-2021 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_HEADER_NETINET_IN],
+[
+ AC_CACHE_CHECK([whether <netinet/in.h> is self-contained],
+ [gl_cv_header_netinet_in_h_selfcontained],
+ [
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>]], [[]])],
+ [gl_cv_header_netinet_in_h_selfcontained=yes],
+ [gl_cv_header_netinet_in_h_selfcontained=no])
+ ])
+ if test $gl_cv_header_netinet_in_h_selfcontained = yes; then
+ NETINET_IN_H=''
+ else
+ NETINET_IN_H='netinet/in.h'
+ AC_CHECK_HEADERS([netinet/in.h])
+ gl_CHECK_NEXT_HEADERS([netinet/in.h])
+ if test $ac_cv_header_netinet_in_h = yes; then
+ HAVE_NETINET_IN_H=1
+ else
+ HAVE_NETINET_IN_H=0
+ fi
+ AC_SUBST([HAVE_NETINET_IN_H])
+ fi
+ AC_SUBST([NETINET_IN_H])
+ AM_CONDITIONAL([GL_GENERATE_NETINET_IN_H], [test -n "$NETINET_IN_H"])
+])
diff --git a/src/grep/m4/nl_langinfo.m4 b/src/grep/m4/nl_langinfo.m4
new file mode 100644
index 0000000..6ad32c8
--- /dev/null
+++ b/src/grep/m4/nl_langinfo.m4
@@ -0,0 +1,77 @@
+# nl_langinfo.m4 serial 8
+dnl Copyright (C) 2009-2021 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])
+ AC_CHECK_FUNCS_ONCE([nl_langinfo])
+ 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
+ fi
+ if test $HAVE_NL_LANGINFO = 0 || test $HAVE_LANGINFO_CODESET = 0; then
+ LIB_NL_LANGINFO="$LIB_SETLOCALE_NULL"
+ 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/src/grep/m4/nls.m4 b/src/grep/m4/nls.m4
new file mode 100644
index 0000000..8f8a147
--- /dev/null
+++ b/src/grep/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/src/grep/m4/nocrash.m4 b/src/grep/m4/nocrash.m4
new file mode 100644
index 0000000..27412cd
--- /dev/null
+++ b/src/grep/m4/nocrash.m4
@@ -0,0 +1,131 @@
+# nocrash.m4 serial 5
+dnl Copyright (C) 2005, 2009-2021 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/src/grep/m4/obstack.m4 b/src/grep/m4/obstack.m4
new file mode 100644
index 0000000..e363d01
--- /dev/null
+++ b/src/grep/m4/obstack.m4
@@ -0,0 +1,35 @@
+# See if we need to provide obstacks.
+
+dnl Copyright 1996-2021 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 replaces Autoconf's AC_FUNC_OBSTACK.
+dnl The Autoconf version should be marked obsolete at some point.
+
+AC_DEFUN([AC_FUNC_OBSTACK],
+ [AC_LIBSOURCES([obstack.h, obstack.c])dnl
+ AC_CACHE_CHECK([for obstacks that work with any size object],
+ [ac_cv_func_obstack],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include "obstack.h"
+ void *obstack_chunk_alloc (size_t n) { return 0; }
+ void obstack_chunk_free (void *p) { }
+ /* Check that an internal function returns size_t, not int. */
+ size_t _obstack_memory_used (struct obstack *);
+ ]],
+ [[struct obstack mem;
+ obstack_init (&mem);
+ obstack_free (&mem, 0);
+ ]])],
+ [ac_cv_func_obstack=yes],
+ [ac_cv_func_obstack=no])])
+ if test "$ac_cv_func_obstack" = yes; then
+ AC_DEFINE([HAVE_OBSTACK], 1,
+ [Define to 1 if the system has obstacks that work with any size object.])
+ else
+ AC_LIBOBJ([obstack])
+ fi
+])
diff --git a/src/grep/m4/off_t.m4 b/src/grep/m4/off_t.m4
new file mode 100644
index 0000000..bdec43c
--- /dev/null
+++ b/src/grep/m4/off_t.m4
@@ -0,0 +1,18 @@
+# off_t.m4 serial 1
+dnl Copyright (C) 2012-2021 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/src/grep/m4/open-cloexec.m4 b/src/grep/m4/open-cloexec.m4
new file mode 100644
index 0000000..542a90f
--- /dev/null
+++ b/src/grep/m4/open-cloexec.m4
@@ -0,0 +1,21 @@
+# Test whether O_CLOEXEC is defined.
+
+dnl Copyright 2017-2021 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/src/grep/m4/open-slash.m4 b/src/grep/m4/open-slash.m4
new file mode 100644
index 0000000..e619039
--- /dev/null
+++ b/src/grep/m4/open-slash.m4
@@ -0,0 +1,60 @@
+# open-slash.m4 serial 2
+dnl Copyright (C) 2007-2021 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 "$gl_cv_func_open_slash" in
+ *no)
+ AC_DEFINE([OPEN_TRAILING_SLASH_BUG], [1],
+ [Define to 1 if open() fails to recognize a trailing slash.])
+ ;;
+ esac
+])
diff --git a/src/grep/m4/open.m4 b/src/grep/m4/open.m4
new file mode 100644
index 0000000..c634386
--- /dev/null
+++ b/src/grep/m4/open.m4
@@ -0,0 +1,56 @@
+# open.m4 serial 15
+dnl Copyright (C) 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_OPEN],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([gl_PREPROC_O_CLOEXEC])
+ case "$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/src/grep/m4/openat.m4 b/src/grep/m4/openat.m4
new file mode 100644
index 0000000..eba0f51
--- /dev/null
+++ b/src/grep/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) 2004-2021 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/src/grep/m4/opendir.m4 b/src/grep/m4/opendir.m4
new file mode 100644
index 0000000..517edae
--- /dev/null
+++ b/src/grep/m4/opendir.m4
@@ -0,0 +1,32 @@
+# opendir.m4 serial 5
+dnl Copyright (C) 2011-2021 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
+ fi
+ 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
+ if test $HAVE_OPENDIR = 1; then
+ REPLACE_OPENDIR=1
+ fi
+ fi
+ ])
+ dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced
+ dnl by gnulib.
+ case $host_os,$HAVE_OPENDIR in
+ os2*,1)
+ REPLACE_OPENDIR=1;;
+ esac
+])
diff --git a/src/grep/m4/pathmax.m4 b/src/grep/m4/pathmax.m4
new file mode 100644
index 0000000..e67c656
--- /dev/null
+++ b/src/grep/m4/pathmax.m4
@@ -0,0 +1,42 @@
+# pathmax.m4 serial 11
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2021 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/src/grep/m4/pcre.m4 b/src/grep/m4/pcre.m4
new file mode 100644
index 0000000..78b7fda
--- /dev/null
+++ b/src/grep/m4/pcre.m4
@@ -0,0 +1,58 @@
+# pcre.m4 - check for libpcre support
+
+# Copyright (C) 2010-2021 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_PCRE],
+[
+ AC_ARG_ENABLE([perl-regexp],
+ AS_HELP_STRING([--disable-perl-regexp],
+ [disable perl-regexp (pcre) support]),
+ [case $enableval in
+ yes|no) test_pcre=$enableval;;
+ *) AC_MSG_ERROR([invalid value $enableval for --disable-perl-regexp]);;
+ esac],
+ [test_pcre=maybe])
+
+ AC_SUBST([PCRE_CFLAGS])
+ AC_SUBST([PCRE_LIBS])
+ use_pcre=no
+
+ if test $test_pcre != no; then
+ PKG_CHECK_MODULES([PCRE], [libpcre], [], [: ${PCRE_LIBS=-lpcre}])
+
+ AC_CACHE_CHECK([for pcre_compile], [pcre_cv_have_pcre_compile],
+ [pcre_saved_CFLAGS=$CFLAGS
+ pcre_saved_LIBS=$LIBS
+ CFLAGS="$CFLAGS $PCRE_CFLAGS"
+ LIBS="$PCRE_LIBS $LIBS"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[#include <pcre.h>
+ ]],
+ [[pcre *p = pcre_compile (0, 0, 0, 0, 0);
+ return !p;]])],
+ [pcre_cv_have_pcre_compile=yes],
+ [pcre_cv_have_pcre_compile=no])
+ CFLAGS=$pcre_saved_CFLAGS
+ LIBS=$pcre_saved_LIBS])
+
+ if test "$pcre_cv_have_pcre_compile" = yes; then
+ use_pcre=yes
+ elif test $test_pcre = maybe; then
+ AC_MSG_WARN([AC_PACKAGE_NAME will be built without pcre support.])
+ else
+ AC_MSG_ERROR([pcre support not available])
+ fi
+ fi
+
+ if test $use_pcre = yes; then
+ AC_DEFINE([HAVE_LIBPCRE], [1],
+ [Define to 1 if you have the Perl Compatible Regular Expressions
+ library (-lpcre).])
+ else
+ PCRE_CFLAGS=
+ PCRE_LIBS=
+ fi
+])
diff --git a/src/grep/m4/perl.m4 b/src/grep/m4/perl.m4
new file mode 100644
index 0000000..0d55101
--- /dev/null
+++ b/src/grep/m4/perl.m4
@@ -0,0 +1,46 @@
+# serial 10
+
+dnl From Jim Meyering.
+dnl Find a new-enough version of Perl.
+
+# Copyright (C) 1998-2001, 2003-2004, 2007, 2009-2021 Free Software Foundation,
+# Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_PERL],
+[
+ dnl FIXME: don't hard-code 5.005
+ AC_MSG_CHECKING([for perl5.005 or newer])
+ if test "${PERL+set}" = set; then
+ # 'PERL' is set in the user's environment.
+ candidate_perl_names="$PERL"
+ perl_specified=yes
+ else
+ candidate_perl_names='perl perl5'
+ perl_specified=no
+ fi
+
+ found=no
+ AC_SUBST([PERL])
+ PERL="$am_missing_run perl"
+ for perl in $candidate_perl_names; do
+ # Run test in a subshell; some versions of sh will print an error if
+ # an executable is not found, even if stderr is redirected.
+ if ( $perl -e 'require 5.005; use File::Compare; use warnings;' ) > /dev/null 2>&1; then
+ PERL=$perl
+ found=yes
+ break
+ fi
+ done
+
+ AC_MSG_RESULT([$found])
+ test $found = no && AC_MSG_WARN([
+WARNING: You don't seem to have perl5.005 or newer installed, or you lack
+ a usable version of the Perl File::Compare module. As a result,
+ you may be unable to run a few tests or to regenerate certain
+ files if you modify the sources from which they are derived.
+] )
+])
diff --git a/src/grep/m4/perror.m4 b/src/grep/m4/perror.m4
new file mode 100644
index 0000000..9f2ac2d
--- /dev/null
+++ b/src/grep/m4/perror.m4
@@ -0,0 +1,71 @@
+# perror.m4 serial 9
+dnl Copyright (C) 2008-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_PERROR],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_REQUIRE([gl_HEADER_ERRNO_H])
+ AC_REQUIRE([gl_FUNC_STRERROR_R])
+ AC_REQUIRE([gl_FUNC_STRERROR_0])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ dnl We intentionally do not check for the broader REPLACE_STRERROR_R,
+ dnl since on glibc systems, strerror_r is replaced only for signature
+ dnl issues, and perror is just fine. Rather, we only want to
+ dnl replace perror if strerror_r was replaced for a content fix.
+ if test "$ERRNO_H:$REPLACE_STRERROR_0" != :0; then
+ dnl The system's perror() cannot know about the new errno values we add
+ dnl to <errno.h>, or any fix for strerror(0). Replace it.
+ REPLACE_PERROR=1
+ fi
+ case ${gl_cv_func_strerror_r_works-unset} in
+ unset|*yes)
+ AC_CACHE_CHECK([whether perror matches strerror],
+ [gl_cv_func_perror_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <errno.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ ]],
+ [[char *str = strerror (-1);
+ if (!getenv("CONFTEST_OUTPUT")) return 0;
+ if (!str) str = "";
+ puts (str);
+ errno = -1;
+ perror ("");
+ return 0;
+ ]])],
+ [if CONFTEST_OUTPUT=1 ./conftest$EXEEXT >conftest.txt1 2>conftest.txt2 \
+ && cmp conftest.txt1 conftest.txt2 >/dev/null; then
+ gl_cv_func_perror_works=yes
+ else
+ gl_cv_func_perror_works=no
+ fi
+ rm -rf conftest.txt1 conftest.txt2],
+ [gl_cv_func_perror_works=no],
+ [case "$host_os" in
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_perror_works="guessing yes" ;;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_perror_works="guessing yes" ;;
+ # Otherwise obey --enable-cross-guesses.
+ *) gl_cv_func_perror_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_perror_works" in
+ *yes) ;;
+ *) REPLACE_PERROR=1 ;;
+ esac
+ ;;
+ *)
+ dnl The system's perror() probably inherits the bugs in the
+ dnl system's strerror_r(). Replace it.
+ REPLACE_PERROR=1
+ ;;
+ esac
+])
diff --git a/src/grep/m4/pipe.m4 b/src/grep/m4/pipe.m4
new file mode 100644
index 0000000..89d666d
--- /dev/null
+++ b/src/grep/m4/pipe.m4
@@ -0,0 +1,15 @@
+# pipe.m4 serial 2
+dnl Copyright (C) 2010-2021 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/src/grep/m4/pkg.m4 b/src/grep/m4/pkg.m4
new file mode 100644
index 0000000..d8549a4
--- /dev/null
+++ b/src/grep/m4/pkg.m4
@@ -0,0 +1,343 @@
+# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
+# serial 11 (pkg-config-0.29.1)
+
+dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+dnl 02111-1307, USA.
+dnl
+dnl As a special exception to the GNU General Public License, if you
+dnl distribute this file as part of a program that contains a
+dnl configuration script generated by Autoconf, you may include it under
+dnl the same distribution terms that you use for the rest of that
+dnl program.
+
+dnl PKG_PREREQ(MIN-VERSION)
+dnl -----------------------
+dnl Since: 0.29
+dnl
+dnl Verify that the version of the pkg-config macros are at least
+dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
+dnl installed version of pkg-config, this checks the developer's version
+dnl of pkg.m4 when generating configure.
+dnl
+dnl To ensure that this macro is defined, also add:
+dnl m4_ifndef([PKG_PREREQ],
+dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
+dnl
+dnl See the "Since" comment for each macro you use to see what version
+dnl of the macros you require.
+m4_defun([PKG_PREREQ],
+[m4_define([PKG_MACROS_VERSION], [0.29.1])
+m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
+ [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
+])dnl PKG_PREREQ
+
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
+dnl ----------------------------------
+dnl Since: 0.16
+dnl
+dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
+dnl first found in the path. Checks that the version of pkg-config found
+dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
+dnl used since that's the first version where most current features of
+dnl pkg-config existed.
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
+m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+ AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+ _pkg_min_version=m4_default([$1], [0.9.0])
+ AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+ if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ PKG_CONFIG=""
+ fi
+fi[]dnl
+])dnl PKG_PROG_PKG_CONFIG
+
+dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------------------------------
+dnl Since: 0.18
+dnl
+dnl Check to see whether a particular set of modules exists. Similar to
+dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
+dnl
+dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+dnl only at the first occurence in configure.ac, so if the first place
+dnl it's called might be skipped (such as if it is within an "if", you
+dnl have to call PKG_CHECK_EXISTS manually
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+ m4_default([$2], [:])
+m4_ifvaln([$3], [else
+ $3])dnl
+fi])
+
+dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+dnl ---------------------------------------------
+dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
+dnl pkg_failed based on the result.
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+ pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+ PKG_CHECK_EXISTS([$3],
+ [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes ],
+ [pkg_failed=yes])
+ else
+ pkg_failed=untried
+fi[]dnl
+])dnl _PKG_CONFIG
+
+dnl _PKG_SHORT_ERRORS_SUPPORTED
+dnl ---------------------------
+dnl Internal check to see if pkg-config supports short errors.
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi[]dnl
+])dnl _PKG_SHORT_ERRORS_SUPPORTED
+
+
+dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl [ACTION-IF-NOT-FOUND])
+dnl --------------------------------------------------------------
+dnl Since: 0.4.0
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
+dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+ AC_MSG_RESULT([no])
+ _PKG_SHORT_ERRORS_SUPPORTED
+ if test $_pkg_short_errors_supported = yes; then
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+ else
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+ m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])[]dnl
+ ])
+elif test $pkg_failed = untried; then
+ AC_MSG_RESULT([no])
+ m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old. Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
+ ])
+else
+ $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+ $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+ AC_MSG_RESULT([yes])
+ $3
+fi[]dnl
+])dnl PKG_CHECK_MODULES
+
+
+dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl [ACTION-IF-NOT-FOUND])
+dnl ---------------------------------------------------------------------
+dnl Since: 0.29
+dnl
+dnl Checks for existence of MODULES and gathers its build flags with
+dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
+dnl and VARIABLE-PREFIX_LIBS from --libs.
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
+dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
+dnl configure.ac.
+AC_DEFUN([PKG_CHECK_MODULES_STATIC],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+_save_PKG_CONFIG=$PKG_CONFIG
+PKG_CONFIG="$PKG_CONFIG --static"
+PKG_CHECK_MODULES($@)
+PKG_CONFIG=$_save_PKG_CONFIG[]dnl
+])dnl PKG_CHECK_MODULES_STATIC
+
+
+dnl PKG_INSTALLDIR([DIRECTORY])
+dnl -------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable pkgconfigdir as the location where a module
+dnl should install pkg-config .pc files. By default the directory is
+dnl $libdir/pkgconfig, but the default can be changed by passing
+dnl DIRECTORY. The user can override through the --with-pkgconfigdir
+dnl parameter.
+AC_DEFUN([PKG_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+ [pkg-config installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([pkgconfigdir],
+ [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
+ [with_pkgconfigdir=]pkg_default)
+AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+])dnl PKG_INSTALLDIR
+
+
+dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
+dnl --------------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable noarch_pkgconfigdir as the location where a
+dnl module should install arch-independent pkg-config .pc files. By
+dnl default the directory is $datadir/pkgconfig, but the default can be
+dnl changed by passing DIRECTORY. The user can override through the
+dnl --with-noarch-pkgconfigdir parameter.
+AC_DEFUN([PKG_NOARCH_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+ [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([noarch-pkgconfigdir],
+ [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
+ [with_noarch_pkgconfigdir=]pkg_default)
+AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+])dnl PKG_NOARCH_INSTALLDIR
+
+
+dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
+dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------
+dnl Since: 0.28
+dnl
+dnl Retrieves the value of the pkg-config variable for the given module.
+AC_DEFUN([PKG_CHECK_VAR],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
+
+_PKG_CONFIG([$1], [variable="][$3]["], [$2])
+AS_VAR_COPY([$1], [pkg_cv_][$1])
+
+AS_VAR_IF([$1], [""], [$5], [$4])dnl
+])dnl PKG_CHECK_VAR
+
+dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------
+dnl
+dnl Prepare a "--with-" configure option using the lowercase
+dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
+dnl PKG_CHECK_MODULES in a single macro.
+AC_DEFUN([PKG_WITH_MODULES],
+[
+m4_pushdef([with_arg], m4_tolower([$1]))
+
+m4_pushdef([description],
+ [m4_default([$5], [build with ]with_arg[ support])])
+
+m4_pushdef([def_arg], [m4_default([$6], [auto])])
+m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
+m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
+
+m4_case(def_arg,
+ [yes],[m4_pushdef([with_without], [--without-]with_arg)],
+ [m4_pushdef([with_without],[--with-]with_arg)])
+
+AC_ARG_WITH(with_arg,
+ AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
+ [AS_TR_SH([with_]with_arg)=def_arg])
+
+AS_CASE([$AS_TR_SH([with_]with_arg)],
+ [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
+ [auto],[PKG_CHECK_MODULES([$1],[$2],
+ [m4_n([def_action_if_found]) $3],
+ [m4_n([def_action_if_not_found]) $4])])
+
+m4_popdef([with_arg])
+m4_popdef([description])
+m4_popdef([def_arg])
+
+])dnl PKG_WITH_MODULES
+
+dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl -----------------------------------------------
+dnl
+dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
+dnl check._[VARIABLE-PREFIX] is exported as make variable.
+AC_DEFUN([PKG_HAVE_WITH_MODULES],
+[
+PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
+
+AM_CONDITIONAL([HAVE_][$1],
+ [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
+])dnl PKG_HAVE_WITH_MODULES
+
+dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------------------
+dnl
+dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
+dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
+dnl and preprocessor variable.
+AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
+[
+PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
+
+AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
+ [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
+])dnl PKG_HAVE_DEFINE_WITH_MODULES
diff --git a/src/grep/m4/po.m4 b/src/grep/m4/po.m4
new file mode 100644
index 0000000..f395723
--- /dev/null
+++ b/src/grep/m4/po.m4
@@ -0,0 +1,452 @@
+# po.m4 serial 20 (gettext-0.18.2)
+dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
+dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003.
+
+AC_PREREQ([2.60])
+
+dnl Checks for all prerequisites of the po subdirectory.
+AC_DEFUN([AM_PO_SUBDIRS],
+[
+ AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+ AC_REQUIRE([AC_PROG_INSTALL])dnl
+ AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+ AC_REQUIRE([AM_NLS])dnl
+
+ dnl Release version of the gettext macros. This is used to ensure that
+ dnl the gettext macros and po/Makefile.in.in are in sync.
+ AC_SUBST([GETTEXT_MACRO_VERSION], [0.18])
+
+ dnl Perform the following tests also if --disable-nls has been given,
+ dnl because they are needed for "make dist" to work.
+
+ dnl Search for GNU msgfmt in the PATH.
+ dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
+ dnl The second test excludes FreeBSD msgfmt.
+ AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
+ [$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 $1"
+])
diff --git a/src/grep/m4/printf.m4 b/src/grep/m4/printf.m4
new file mode 100644
index 0000000..284c7c5
--- /dev/null
+++ b/src/grep/m4/printf.m4
@@ -0,0 +1,1728 @@
+# printf.m4 serial 73
+dnl Copyright (C) 2003, 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Test whether the *printf family of functions supports the 'j', 'z', 't',
+dnl 'L' size specifiers. (ISO C99, POSIX:2001)
+dnl Result is gl_cv_func_printf_sizes_c99.
+
+AC_DEFUN([gl_PRINTF_SIZES_C99],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gl_AC_HEADER_STDINT_H])
+ AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether printf supports size specifiers as in C99],
+ [gl_cv_func_printf_sizes_c99],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#if HAVE_STDINT_H_WITH_UINTMAX
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H_WITH_UINTMAX
+# include <inttypes.h>
+#endif
+static char buf[100];
+int main ()
+{
+ int result = 0;
+#if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX
+ buf[0] = '\0';
+ if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0
+ || strcmp (buf, "12345671 33") != 0)
+ result |= 1;
+#else
+ result |= 1;
+#endif
+ buf[0] = '\0';
+ if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0
+ || strcmp (buf, "12345672 33") != 0)
+ result |= 2;
+ buf[0] = '\0';
+ if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0
+ || strcmp (buf, "12345673 33") != 0)
+ result |= 4;
+ buf[0] = '\0';
+ if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0
+ || strcmp (buf, "1.5 33") != 0)
+ result |= 8;
+ return result;
+}]])],
+ [gl_cv_func_printf_sizes_c99=yes],
+ [gl_cv_func_printf_sizes_c99=no],
+ [
+ case "$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*) 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="$gl_cross_guess_normal";;
+ esac
+ ])
+ ])
+])
+
+dnl Test whether the *printf family of functions supports 'long double'
+dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001)
+dnl Result is gl_cv_func_printf_long_double.
+
+AC_DEFUN([gl_PRINTF_LONG_DOUBLE],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether printf supports 'long double' arguments],
+ [gl_cv_func_printf_long_double],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <string.h>
+static char buf[10000];
+int main ()
+{
+ int result = 0;
+ buf[0] = '\0';
+ if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0
+ || strcmp (buf, "1.750000 33") != 0)
+ result |= 1;
+ buf[0] = '\0';
+ if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0
+ || strcmp (buf, "1.750000e+00 33") != 0)
+ result |= 2;
+ buf[0] = '\0';
+ if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0
+ || strcmp (buf, "1.75 33") != 0)
+ result |= 4;
+ return result;
+}]])],
+ [gl_cv_func_printf_long_double=yes],
+ [gl_cv_func_printf_long_double=no],
+ [case "$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 "$host_os" in
+changequote(,)dnl
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on FreeBSD >= 6.
+ freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";;
+ freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";;
+ midnightbsd*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
+ darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";;
+ darwin*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on HP-UX >= 11.
+ hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite="guessing no";;
+ hpux*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_printf_infinite="guessing no";;
+ netbsd*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_infinite="guessing no";;
+ openbsd*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_printf_infinite="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_infinite="guessing no";;
+changequote([,])dnl
+ # Guess yes on MSVC, no on mingw.
+ mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+ ],
+ [gl_cv_func_printf_infinite="guessing yes"],
+ [gl_cv_func_printf_infinite="guessing no"])
+ ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_infinite="$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*) 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*) 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="$gl_cross_guess_normal";;
+ esac
+ ])
+ ])
+])
+
+dnl Test whether the *printf family of functions supports the %F format
+dnl directive. (ISO C99, POSIX:2001)
+dnl Result is gl_cv_func_printf_directive_f.
+
+AC_DEFUN([gl_PRINTF_DIRECTIVE_F],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether printf supports the 'F' directive],
+ [gl_cv_func_printf_directive_f],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <string.h>
+static char buf[100];
+static double zero = 0.0;
+int main ()
+{
+ int result = 0;
+ if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
+ || strcmp (buf, "1234567.000000 33") != 0)
+ result |= 1;
+ if (sprintf (buf, "%F", 1.0 / zero) < 0
+ || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0))
+ result |= 2;
+ /* This catches a Cygwin 1.5.x bug. */
+ if (sprintf (buf, "%.F", 1234.0) < 0
+ || strcmp (buf, "1234") != 0)
+ result |= 4;
+ return result;
+}]])],
+ [gl_cv_func_printf_directive_f=yes],
+ [gl_cv_func_printf_directive_f=no],
+ [
+ case "$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*) 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 "$host_os" in
+ # Guess yes on OpenBSD >= 6.0.
+ openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";;
+ openbsd*) gl_cv_func_printf_directive_ls="guessing yes";;
+ irix*) gl_cv_func_printf_directive_ls="guessing no";;
+ solaris*) gl_cv_func_printf_directive_ls="guessing no";;
+ cygwin*) gl_cv_func_printf_directive_ls="guessing no";;
+ beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_directive_ls="guessing no";;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_printf_directive_ls="guessing yes";;
+ *) gl_cv_func_printf_directive_ls="guessing yes";;
+ esac
+changequote([,])dnl
+ ])
+ ])
+])
+
+dnl Test whether the *printf family of functions supports POSIX/XSI format
+dnl strings with positions. (POSIX:2001)
+dnl Result is gl_cv_func_printf_positions.
+
+AC_DEFUN([gl_PRINTF_POSITIONS],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions],
+ [gl_cv_func_printf_positions],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <string.h>
+/* The string "%2$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 "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_printf_flag_zero="guessing yes";;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_printf_flag_zero="guessing no";;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_printf_flag_zero="guessing no";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_printf_flag_zero="$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*) 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*) 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*) 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 "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on FreeBSD >= 5.
+ freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ midnightbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on Mac OS X >= 10.3.
+ darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on Cygwin.
+ cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on Solaris >= 2.6.
+ solaris2.[0-5] | solaris2.[0-5].*)
+ gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on AIX >= 4.
+ aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on IRIX >= 6.5.
+ irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
+ netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on Android.
+ linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # Guess yes on native Windows.
+ mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";;
+ esac
+changequote([,])dnl
+ ])
+ ])
+])
+
+dnl The results of these tests on various platforms are:
+dnl
+dnl 1 = gl_PRINTF_SIZES_C99
+dnl 2 = gl_PRINTF_LONG_DOUBLE
+dnl 3 = gl_PRINTF_INFINITE
+dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE
+dnl 5 = gl_PRINTF_DIRECTIVE_A
+dnl 6 = gl_PRINTF_DIRECTIVE_F
+dnl 7 = gl_PRINTF_DIRECTIVE_N
+dnl 8 = gl_PRINTF_DIRECTIVE_LS
+dnl 9 = gl_PRINTF_POSITIONS
+dnl 10 = gl_PRINTF_FLAG_GROUPING
+dnl 11 = gl_PRINTF_FLAG_LEFTADJUST
+dnl 12 = gl_PRINTF_FLAG_ZERO
+dnl 13 = gl_PRINTF_PRECISION
+dnl 14 = gl_PRINTF_ENOMEM
+dnl 15 = gl_SNPRINTF_PRESENCE
+dnl 16 = gl_SNPRINTF_TRUNCATION_C99
+dnl 17 = gl_SNPRINTF_RETVAL_C99
+dnl 18 = gl_SNPRINTF_DIRECTIVE_N
+dnl 19 = gl_SNPRINTF_SIZE1
+dnl 20 = gl_VSNPRINTF_ZEROSIZE_C99
+dnl
+dnl 1 = checking whether printf supports size specifiers as in C99...
+dnl 2 = checking whether printf supports 'long double' arguments...
+dnl 3 = checking whether printf supports infinite 'double' arguments...
+dnl 4 = checking whether printf supports infinite 'long double' arguments...
+dnl 5 = checking whether printf supports the 'a' and 'A' directives...
+dnl 6 = checking whether printf supports the 'F' directive...
+dnl 7 = checking whether printf supports the 'n' directive...
+dnl 8 = checking whether printf supports the 'ls' directive...
+dnl 9 = checking whether printf supports POSIX/XSI format strings with positions...
+dnl 10 = checking whether printf supports the grouping flag...
+dnl 11 = checking whether printf supports the left-adjust flag correctly...
+dnl 12 = checking whether printf supports the zero flag correctly...
+dnl 13 = checking whether printf supports large precisions...
+dnl 14 = checking whether printf survives out-of-memory conditions...
+dnl 15 = checking for snprintf...
+dnl 16 = checking whether snprintf truncates the result as in C99...
+dnl 17 = checking whether snprintf returns a byte count as in C99...
+dnl 18 = checking whether snprintf fully supports the 'n' directive...
+dnl 19 = checking whether snprintf respects a size of 1...
+dnl 20 = checking whether vsnprintf respects a zero size as in C99...
+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
+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/src/grep/m4/progtest.m4 b/src/grep/m4/progtest.m4
new file mode 100644
index 0000000..7b39123
--- /dev/null
+++ b/src/grep/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([$1])dnl
+])
diff --git a/src/grep/m4/pthread-thread.m4 b/src/grep/m4/pthread-thread.m4
new file mode 100644
index 0000000..949186d
--- /dev/null
+++ b/src/grep/m4/pthread-thread.m4
@@ -0,0 +1,69 @@
+# pthread-thread.m4 serial 2
+dnl Copyright (C) 2019-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_PTHREAD_THREAD],
+[
+ AC_REQUIRE([gl_PTHREAD_H])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ if { case "$host_os" in mingw*) true;; *) false;; esac; } \
+ && test $gl_threads_api = windows; then
+ dnl Choose function names that don't conflict with the mingw-w64 winpthreads
+ dnl library.
+ REPLACE_PTHREAD_CREATE=1
+ REPLACE_PTHREAD_ATTR_INIT=1
+ REPLACE_PTHREAD_ATTR_GETDETACHSTATE=1
+ REPLACE_PTHREAD_ATTR_SETDETACHSTATE=1
+ REPLACE_PTHREAD_ATTR_DESTROY=1
+ REPLACE_PTHREAD_SELF=1
+ REPLACE_PTHREAD_EQUAL=1
+ REPLACE_PTHREAD_DETACH=1
+ REPLACE_PTHREAD_JOIN=1
+ REPLACE_PTHREAD_EXIT=1
+ else
+ if test $HAVE_PTHREAD_H = 0; then
+ HAVE_PTHREAD_CREATE=0
+ HAVE_PTHREAD_ATTR_INIT=0
+ HAVE_PTHREAD_ATTR_GETDETACHSTATE=0
+ HAVE_PTHREAD_ATTR_SETDETACHSTATE=0
+ HAVE_PTHREAD_ATTR_DESTROY=0
+ HAVE_PTHREAD_SELF=0
+ HAVE_PTHREAD_EQUAL=0
+ HAVE_PTHREAD_DETACH=0
+ HAVE_PTHREAD_JOIN=0
+ HAVE_PTHREAD_EXIT=0
+ else
+ dnl On HP-UX 11.11, pthread_create() and pthread_attr_init() are only
+ dnl defined as inline functions.
+ AC_CACHE_CHECK([whether pthread_create exists as a global function],
+ [gl_cv_func_pthread_create],
+ [saved_LIBS="$LIBS"
+ LIBS="$LIBS $LIBPMULTITHREAD"
+ AC_LINK_IFELSE(
+ [AC_LANG_SOURCE(
+ [[extern
+ #ifdef __cplusplus
+ "C"
+ #endif
+ int pthread_create (void);
+ int main ()
+ {
+ return pthread_create ();
+ }
+ ]])],
+ [gl_cv_func_pthread_create=yes],
+ [gl_cv_func_pthread_create=no])
+ LIBS="$saved_LIBS"
+ ])
+ if test $gl_cv_func_pthread_create = no; then
+ REPLACE_PTHREAD_CREATE=1
+ REPLACE_PTHREAD_ATTR_INIT=1
+ AC_DEFINE([PTHREAD_CREATE_IS_INLINE], [1],
+ [Define if pthread_create is an inline function.])
+ fi
+ fi
+ fi
+])
diff --git a/src/grep/m4/pthread_h.m4 b/src/grep/m4/pthread_h.m4
new file mode 100644
index 0000000..62a6ca8
--- /dev/null
+++ b/src/grep/m4/pthread_h.m4
@@ -0,0 +1,283 @@
+# pthread_h.m4 serial 8
+dnl Copyright (C) 2009-2021 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_PTHREAD_H],
+[
+ dnl Ensure to expand the default settings once only, before all statements
+ dnl that occur in other macros.
+ AC_REQUIRE([gl_PTHREAD_H_DEFAULTS])
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([gl_PTHREADLIB])
+
+ gl_CHECK_NEXT_HEADERS([pthread.h])
+ if test $ac_cv_header_pthread_h = yes; then
+ HAVE_PTHREAD_H=1
+ dnl On mingw, if --enable-threads=windows or gl_AVOID_WINPTHREAD is used,
+ dnl ignore the <pthread.h> from the mingw-w64 winpthreads library.
+ m4_ifdef([gl_][THREADLIB], [
+ AC_REQUIRE([gl_][THREADLIB])
+ if { case "$host_os" in mingw*) true;; *) false;; esac; } \
+ && test $gl_threads_api = windows; then
+ HAVE_PTHREAD_H=0
+ fi
+ ])
+ else
+ HAVE_PTHREAD_H=0
+ fi
+ AC_SUBST([HAVE_PTHREAD_H])
+
+ AC_CHECK_TYPES([pthread_t, pthread_spinlock_t], [], [],
+ [AC_INCLUDES_DEFAULT[
+ #if HAVE_PTHREAD_H
+ #include <pthread.h>
+ #endif]])
+ if test $ac_cv_type_pthread_t != yes; then
+ HAVE_PTHREAD_T=0
+ fi
+ if test $ac_cv_type_pthread_spinlock_t != yes; then
+ HAVE_PTHREAD_SPINLOCK_T=0
+ fi
+
+ dnl Constants may be defined as C preprocessor macros or as enum items.
+
+ AC_CACHE_CHECK([for PTHREAD_CREATE_DETACHED],
+ [gl_cv_const_PTHREAD_CREATE_DETACHED],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ int x = PTHREAD_CREATE_DETACHED;
+ ]],
+ [[]])],
+ [gl_cv_const_PTHREAD_CREATE_DETACHED=yes],
+ [gl_cv_const_PTHREAD_CREATE_DETACHED=no])
+ ])
+ if test $gl_cv_const_PTHREAD_CREATE_DETACHED != yes; then
+ HAVE_PTHREAD_CREATE_DETACHED=0
+ fi
+
+ AC_CACHE_CHECK([for PTHREAD_MUTEX_RECURSIVE],
+ [gl_cv_const_PTHREAD_MUTEX_RECURSIVE],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ int x = PTHREAD_MUTEX_RECURSIVE;
+ ]],
+ [[]])],
+ [gl_cv_const_PTHREAD_MUTEX_RECURSIVE=yes],
+ [gl_cv_const_PTHREAD_MUTEX_RECURSIVE=no])
+ ])
+ if test $gl_cv_const_PTHREAD_MUTEX_RECURSIVE != yes; then
+ HAVE_PTHREAD_MUTEX_RECURSIVE=0
+ fi
+
+ AC_CACHE_CHECK([for PTHREAD_MUTEX_ROBUST],
+ [gl_cv_const_PTHREAD_MUTEX_ROBUST],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ int x = PTHREAD_MUTEX_ROBUST;
+ ]],
+ [[]])],
+ [gl_cv_const_PTHREAD_MUTEX_ROBUST=yes],
+ [gl_cv_const_PTHREAD_MUTEX_ROBUST=no])
+ ])
+ if test $gl_cv_const_PTHREAD_MUTEX_ROBUST != yes; then
+ HAVE_PTHREAD_MUTEX_ROBUST=0
+ fi
+
+ AC_CACHE_CHECK([for PTHREAD_PROCESS_SHARED],
+ [gl_cv_const_PTHREAD_PROCESS_SHARED],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ int x = PTHREAD_PROCESS_SHARED;
+ ]],
+ [[]])],
+ [gl_cv_const_PTHREAD_PROCESS_SHARED=yes],
+ [gl_cv_const_PTHREAD_PROCESS_SHARED=no])
+ ])
+ if test $gl_cv_const_PTHREAD_PROCESS_SHARED != yes; then
+ HAVE_PTHREAD_PROCESS_SHARED=0
+ fi
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use, if it is not common
+ dnl enough to be declared everywhere.
+ gl_WARN_ON_USE_PREPARE([[#include <pthread.h>
+ ]], [
+ pthread_create pthread_attr_init pthread_attr_getdetachstate
+ pthread_attr_setdetachstate pthread_attr_destroy pthread_self pthread_equal
+ pthread_detach pthread_join pthread_exit
+ pthread_once
+ pthread_mutex_init pthread_mutexattr_init pthread_mutexattr_gettype
+ pthread_mutexattr_settype pthread_mutexattr_getrobust
+ pthread_mutexattr_setrobust pthread_mutexattr_destroy pthread_mutex_lock
+ pthread_mutex_trylock pthread_mutex_timedlock pthread_mutex_unlock
+ pthread_mutex_destroy
+ pthread_rwlock_init pthread_rwlockattr_init pthread_rwlockattr_destroy
+ pthread_rwlock_rdlock pthread_rwlock_wrlock pthread_rwlock_tryrdlock
+ pthread_rwlock_trywrlock pthread_rwlock_timedrdlock
+ pthread_rwlock_timedwrlock pthread_rwlock_unlock pthread_rwlock_destroy
+ pthread_cond_init pthread_condattr_init pthread_condattr_destroy
+ pthread_cond_wait pthread_cond_timedwait pthread_cond_signal
+ pthread_cond_broadcast pthread_cond_destroy
+ pthread_key_create pthread_setspecific pthread_getspecific
+ pthread_key_delete
+ pthread_spin_init pthread_spin_lock pthread_spin_trylock pthread_spin_unlock
+ pthread_spin_destroy])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+
+ dnl For backward compatibility with gnulib versions <= 2019-07.
+ LIB_PTHREAD="$LIBPMULTITHREAD"
+ AC_SUBST([LIB_PTHREAD])
+])
+
+# gl_PTHREAD_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_PTHREAD_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_PTHREAD_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_PTHREAD_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_PTHREAD_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_THREAD])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_ONCE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_MUTEX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_RWLOCK])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_COND])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_TSS])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_SPIN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PTHREAD_MUTEX_TIMEDLOCK])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_PTHREAD_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_PTHREAD_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_PTHREAD_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_PTHREAD_T=1; AC_SUBST([HAVE_PTHREAD_T])
+ HAVE_PTHREAD_SPINLOCK_T=1; AC_SUBST([HAVE_PTHREAD_SPINLOCK_T])
+ HAVE_PTHREAD_CREATE_DETACHED=1; AC_SUBST([HAVE_PTHREAD_CREATE_DETACHED])
+ HAVE_PTHREAD_MUTEX_RECURSIVE=1; AC_SUBST([HAVE_PTHREAD_MUTEX_RECURSIVE])
+ HAVE_PTHREAD_MUTEX_ROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEX_ROBUST])
+ HAVE_PTHREAD_PROCESS_SHARED=1; AC_SUBST([HAVE_PTHREAD_PROCESS_SHARED])
+ HAVE_PTHREAD_CREATE=1; AC_SUBST([HAVE_PTHREAD_CREATE])
+ HAVE_PTHREAD_ATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_ATTR_INIT])
+ HAVE_PTHREAD_ATTR_GETDETACHSTATE=1; AC_SUBST([HAVE_PTHREAD_ATTR_GETDETACHSTATE])
+ HAVE_PTHREAD_ATTR_SETDETACHSTATE=1; AC_SUBST([HAVE_PTHREAD_ATTR_SETDETACHSTATE])
+ HAVE_PTHREAD_ATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_ATTR_DESTROY])
+ HAVE_PTHREAD_SELF=1; AC_SUBST([HAVE_PTHREAD_SELF])
+ HAVE_PTHREAD_EQUAL=1; AC_SUBST([HAVE_PTHREAD_EQUAL])
+ HAVE_PTHREAD_DETACH=1; AC_SUBST([HAVE_PTHREAD_DETACH])
+ HAVE_PTHREAD_JOIN=1; AC_SUBST([HAVE_PTHREAD_JOIN])
+ HAVE_PTHREAD_EXIT=1; AC_SUBST([HAVE_PTHREAD_EXIT])
+ HAVE_PTHREAD_ONCE=1; AC_SUBST([HAVE_PTHREAD_ONCE])
+ HAVE_PTHREAD_MUTEX_INIT=1; AC_SUBST([HAVE_PTHREAD_MUTEX_INIT])
+ HAVE_PTHREAD_MUTEXATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_INIT])
+ HAVE_PTHREAD_MUTEXATTR_GETTYPE=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_GETTYPE])
+ HAVE_PTHREAD_MUTEXATTR_SETTYPE=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_SETTYPE])
+ HAVE_PTHREAD_MUTEXATTR_GETROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_GETROBUST])
+ HAVE_PTHREAD_MUTEXATTR_SETROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_SETROBUST])
+ HAVE_PTHREAD_MUTEXATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_DESTROY])
+ HAVE_PTHREAD_MUTEX_LOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_LOCK])
+ HAVE_PTHREAD_MUTEX_TRYLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_TRYLOCK])
+ HAVE_PTHREAD_MUTEX_TIMEDLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_TIMEDLOCK])
+ HAVE_PTHREAD_MUTEX_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_UNLOCK])
+ HAVE_PTHREAD_MUTEX_DESTROY=1; AC_SUBST([HAVE_PTHREAD_MUTEX_DESTROY])
+ HAVE_PTHREAD_RWLOCK_INIT=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_INIT])
+ HAVE_PTHREAD_RWLOCKATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_RWLOCKATTR_INIT])
+ HAVE_PTHREAD_RWLOCKATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_RWLOCKATTR_DESTROY])
+ HAVE_PTHREAD_RWLOCK_RDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_RDLOCK])
+ HAVE_PTHREAD_RWLOCK_WRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_WRLOCK])
+ HAVE_PTHREAD_RWLOCK_TRYRDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TRYRDLOCK])
+ HAVE_PTHREAD_RWLOCK_TRYWRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TRYWRLOCK])
+ HAVE_PTHREAD_RWLOCK_TIMEDRDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TIMEDRDLOCK])
+ HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK])
+ HAVE_PTHREAD_RWLOCK_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_UNLOCK])
+ HAVE_PTHREAD_RWLOCK_DESTROY=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_DESTROY])
+ HAVE_PTHREAD_COND_INIT=1; AC_SUBST([HAVE_PTHREAD_COND_INIT])
+ HAVE_PTHREAD_CONDATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_CONDATTR_INIT])
+ HAVE_PTHREAD_CONDATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_CONDATTR_DESTROY])
+ HAVE_PTHREAD_COND_WAIT=1; AC_SUBST([HAVE_PTHREAD_COND_WAIT])
+ HAVE_PTHREAD_COND_TIMEDWAIT=1; AC_SUBST([HAVE_PTHREAD_COND_TIMEDWAIT])
+ HAVE_PTHREAD_COND_SIGNAL=1; AC_SUBST([HAVE_PTHREAD_COND_SIGNAL])
+ HAVE_PTHREAD_COND_BROADCAST=1; AC_SUBST([HAVE_PTHREAD_COND_BROADCAST])
+ HAVE_PTHREAD_COND_DESTROY=1; AC_SUBST([HAVE_PTHREAD_COND_DESTROY])
+ HAVE_PTHREAD_KEY_CREATE=1; AC_SUBST([HAVE_PTHREAD_KEY_CREATE])
+ HAVE_PTHREAD_SETSPECIFIC=1; AC_SUBST([HAVE_PTHREAD_SETSPECIFIC])
+ HAVE_PTHREAD_GETSPECIFIC=1; AC_SUBST([HAVE_PTHREAD_GETSPECIFIC])
+ HAVE_PTHREAD_KEY_DELETE=1; AC_SUBST([HAVE_PTHREAD_KEY_DELETE])
+ HAVE_PTHREAD_SPIN_INIT=1; AC_SUBST([HAVE_PTHREAD_SPIN_INIT])
+ HAVE_PTHREAD_SPIN_LOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_LOCK])
+ HAVE_PTHREAD_SPIN_TRYLOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_TRYLOCK])
+ HAVE_PTHREAD_SPIN_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_UNLOCK])
+ HAVE_PTHREAD_SPIN_DESTROY=1; AC_SUBST([HAVE_PTHREAD_SPIN_DESTROY])
+ REPLACE_PTHREAD_CREATE=0; AC_SUBST([REPLACE_PTHREAD_CREATE])
+ REPLACE_PTHREAD_ATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_ATTR_INIT])
+ REPLACE_PTHREAD_ATTR_GETDETACHSTATE=0; AC_SUBST([REPLACE_PTHREAD_ATTR_GETDETACHSTATE])
+ REPLACE_PTHREAD_ATTR_SETDETACHSTATE=0; AC_SUBST([REPLACE_PTHREAD_ATTR_SETDETACHSTATE])
+ REPLACE_PTHREAD_ATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_ATTR_DESTROY])
+ REPLACE_PTHREAD_SELF=0; AC_SUBST([REPLACE_PTHREAD_SELF])
+ REPLACE_PTHREAD_EQUAL=0; AC_SUBST([REPLACE_PTHREAD_EQUAL])
+ REPLACE_PTHREAD_DETACH=0; AC_SUBST([REPLACE_PTHREAD_DETACH])
+ REPLACE_PTHREAD_JOIN=0; AC_SUBST([REPLACE_PTHREAD_JOIN])
+ REPLACE_PTHREAD_EXIT=0; AC_SUBST([REPLACE_PTHREAD_EXIT])
+ REPLACE_PTHREAD_ONCE=0; AC_SUBST([REPLACE_PTHREAD_ONCE])
+ REPLACE_PTHREAD_MUTEX_INIT=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_INIT])
+ REPLACE_PTHREAD_MUTEXATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_INIT])
+ REPLACE_PTHREAD_MUTEXATTR_GETTYPE=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_GETTYPE])
+ REPLACE_PTHREAD_MUTEXATTR_SETTYPE=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_SETTYPE])
+ REPLACE_PTHREAD_MUTEXATTR_GETROBUST=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_GETROBUST])
+ REPLACE_PTHREAD_MUTEXATTR_SETROBUST=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_SETROBUST])
+ REPLACE_PTHREAD_MUTEXATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_DESTROY])
+ REPLACE_PTHREAD_MUTEX_LOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_LOCK])
+ REPLACE_PTHREAD_MUTEX_TRYLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_TRYLOCK])
+ REPLACE_PTHREAD_MUTEX_TIMEDLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_TIMEDLOCK])
+ REPLACE_PTHREAD_MUTEX_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_UNLOCK])
+ REPLACE_PTHREAD_MUTEX_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_DESTROY])
+ REPLACE_PTHREAD_RWLOCK_INIT=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_INIT])
+ REPLACE_PTHREAD_RWLOCKATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_RWLOCKATTR_INIT])
+ REPLACE_PTHREAD_RWLOCKATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_RWLOCKATTR_DESTROY])
+ REPLACE_PTHREAD_RWLOCK_RDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_RDLOCK])
+ REPLACE_PTHREAD_RWLOCK_WRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_WRLOCK])
+ REPLACE_PTHREAD_RWLOCK_TRYRDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TRYRDLOCK])
+ REPLACE_PTHREAD_RWLOCK_TRYWRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TRYWRLOCK])
+ REPLACE_PTHREAD_RWLOCK_TIMEDRDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TIMEDRDLOCK])
+ REPLACE_PTHREAD_RWLOCK_TIMEDWRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TIMEDWRLOCK])
+ REPLACE_PTHREAD_RWLOCK_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_UNLOCK])
+ REPLACE_PTHREAD_RWLOCK_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_DESTROY])
+ REPLACE_PTHREAD_COND_INIT=0; AC_SUBST([REPLACE_PTHREAD_COND_INIT])
+ REPLACE_PTHREAD_CONDATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_CONDATTR_INIT])
+ REPLACE_PTHREAD_CONDATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_CONDATTR_DESTROY])
+ REPLACE_PTHREAD_COND_WAIT=0; AC_SUBST([REPLACE_PTHREAD_COND_WAIT])
+ REPLACE_PTHREAD_COND_TIMEDWAIT=0; AC_SUBST([REPLACE_PTHREAD_COND_TIMEDWAIT])
+ REPLACE_PTHREAD_COND_SIGNAL=0; AC_SUBST([REPLACE_PTHREAD_COND_SIGNAL])
+ REPLACE_PTHREAD_COND_BROADCAST=0; AC_SUBST([REPLACE_PTHREAD_COND_BROADCAST])
+ REPLACE_PTHREAD_COND_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_COND_DESTROY])
+ REPLACE_PTHREAD_KEY_CREATE=0; AC_SUBST([REPLACE_PTHREAD_KEY_CREATE])
+ REPLACE_PTHREAD_SETSPECIFIC=0; AC_SUBST([REPLACE_PTHREAD_SETSPECIFIC])
+ REPLACE_PTHREAD_GETSPECIFIC=0; AC_SUBST([REPLACE_PTHREAD_GETSPECIFIC])
+ REPLACE_PTHREAD_KEY_DELETE=0; AC_SUBST([REPLACE_PTHREAD_KEY_DELETE])
+ REPLACE_PTHREAD_SPIN_INIT=0; AC_SUBST([REPLACE_PTHREAD_SPIN_INIT])
+ REPLACE_PTHREAD_SPIN_LOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_LOCK])
+ REPLACE_PTHREAD_SPIN_TRYLOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_TRYLOCK])
+ REPLACE_PTHREAD_SPIN_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_UNLOCK])
+ REPLACE_PTHREAD_SPIN_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_SPIN_DESTROY])
+])
diff --git a/src/grep/m4/pthread_rwlock_rdlock.m4 b/src/grep/m4/pthread_rwlock_rdlock.m4
new file mode 100644
index 0000000..a5fbead
--- /dev/null
+++ b/src/grep/m4/pthread_rwlock_rdlock.m4
@@ -0,0 +1,185 @@
+# pthread_rwlock_rdlock.m4 serial 4
+dnl Copyright (C) 2017-2021 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*) 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/src/grep/m4/pthread_sigmask.m4 b/src/grep/m4/pthread_sigmask.m4
new file mode 100644
index 0000000..ff7fa96
--- /dev/null
+++ b/src/grep/m4/pthread_sigmask.m4
@@ -0,0 +1,274 @@
+# pthread_sigmask.m4 serial 21
+dnl Copyright (C) 2011-2021 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])
+ ])
+
+ LIB_PTHREAD_SIGMASK=
+
+ 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 $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then
+ dnl pthread_sigmask is available with -pthread or -lpthread.
+ LIB_PTHREAD_SIGMASK="$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 $ac_cv_func_pthread_sigmask = yes; then
+ dnl pthread_sigmask exists and does not require extra libraries.
+ dnl Assume that it is declared.
+ :
+ else
+ dnl pthread_sigmask either does not exist or needs extra libraries.
+ HAVE_PTHREAD_SIGMASK=0
+ dnl Define the symbol rpl_pthread_sigmask, not pthread_sigmask,
+ dnl so as to not accidentally override the system's pthread_sigmask
+ dnl symbol from libpthread. This is necessary on IRIX 6.5.
+ REPLACE_PTHREAD_SIGMASK=1
+ fi
+ ])
+ fi
+
+ AC_SUBST([LIB_PTHREAD_SIGMASK])
+ dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when
+ dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the
+ dnl same.
+
+ dnl Now test for some bugs in the system function.
+ if test $HAVE_PTHREAD_SIGMASK = 1; then
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+ dnl On FreeBSD 13.0, MidnightBSD 1.1, HP-UX 11.31, Solaris 9, in programs
+ dnl that are not linked with -lpthread, the pthread_sigmask() function
+ dnl always returns 0 and has no effect.
+ if test -z "$LIB_PTHREAD_SIGMASK"; 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 $LIB_PTHREAD_SIGMASK"
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <pthread.h>
+#include <signal.h>
+#include <stddef.h>
+int main ()
+{
+ sigset_t set;
+ sigemptyset (&set);
+ if (pthread_sigmask (1729, &set, NULL) == -1)
+ return 1;
+ return 0;
+}]])],
+ [gl_cv_func_pthread_sigmask_return_works=yes],
+ [gl_cv_func_pthread_sigmask_return_works=no],
+ [case "$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 $LIB_PTHREAD_SIGMASK.
+ 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 $LIBMULTITHREAD"])
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+]GL_MDA_DEFINES[
+static volatile int sigint_occurred;
+static void
+sigint_handler (int sig)
+{
+ sigint_occurred++;
+}
+int main ()
+{
+ sigset_t set;
+ int pid = getpid ();
+ char command[80];
+ signal (SIGINT, sigint_handler);
+ sigemptyset (&set);
+ sigaddset (&set, SIGINT);
+ if (!(pthread_sigmask (SIG_BLOCK, &set, NULL) == 0))
+ return 1;
+ sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, pid);
+ if (!(system (command) == 0))
+ return 2;
+ sleep (2);
+ if (!(sigint_occurred == 0))
+ return 3;
+ if (!(pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0))
+ return 4;
+ if (!(sigint_occurred == 1)) /* This fails on IRIX. */
+ return 5;
+ return 0;
+}]])],
+ [:],
+ [gl_cv_func_pthread_sigmask_unblock_works=no],
+ [:])
+ m4_ifdef([gl_][THREADLIB], [LIBS=$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 $HAVE_PTHREAD_SIGMASK = 1; then
+ AC_DEFINE([HAVE_PTHREAD_SIGMASK], [1],
+ [Define to 1 if the pthread_sigmask function can be used (despite bugs).])
+ fi
+])
diff --git a/src/grep/m4/putenv.m4 b/src/grep/m4/putenv.m4
new file mode 100644
index 0000000..919984d
--- /dev/null
+++ b/src/grep/m4/putenv.m4
@@ -0,0 +1,64 @@
+# putenv.m4 serial 25
+dnl Copyright (C) 2002-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Jim Meyering.
+dnl
+dnl Check whether putenv ("FOO") removes FOO from the environment.
+dnl The putenv in libc on at least SunOS 4.1.4 does *not* do that.
+
+AC_DEFUN([gl_FUNC_PUTENV],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([for putenv compatible with GNU and SVID],
+ [gl_cv_func_svid_putenv],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT
+ GL_MDA_DEFINES],
+ [[
+ /* Put it in env. */
+ if (putenv ("CONFTEST_putenv=val"))
+ return 1;
+
+ /* Try to remove it. */
+ if (putenv ("CONFTEST_putenv"))
+ return 2;
+
+ /* Make sure it was deleted. */
+ if (getenv ("CONFTEST_putenv") != 0)
+ return 3;
+
+ return 0;
+ ]])],
+ [gl_cv_func_svid_putenv=yes],
+ [gl_cv_func_svid_putenv=no],
+ [dnl When crosscompiling, assume putenv is broken.
+ case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_svid_putenv="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_svid_putenv="guessing yes" ;;
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_svid_putenv="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_svid_putenv="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_svid_putenv" in
+ *yes) ;;
+ *)
+ REPLACE_PUTENV=1
+ ;;
+ esac
+])
+
+# Prerequisites of lib/putenv.c.
+AC_DEFUN([gl_PREREQ_PUTENV],
+[
+ AC_CHECK_DECLS([_putenv])
+])
diff --git a/src/grep/m4/quote.m4 b/src/grep/m4/quote.m4
new file mode 100644
index 0000000..be205c0
--- /dev/null
+++ b/src/grep/m4/quote.m4
@@ -0,0 +1,13 @@
+# quote.m4 serial 6
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2021 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_QUOTE],
+[
+ dnl Prerequisites of lib/quote.c.
+ dnl (none)
+ :
+])
diff --git a/src/grep/m4/quotearg.m4 b/src/grep/m4/quotearg.m4
new file mode 100644
index 0000000..19067f5
--- /dev/null
+++ b/src/grep/m4/quotearg.m4
@@ -0,0 +1,11 @@
+# quotearg.m4 serial 10
+dnl Copyright (C) 2002, 2004-2021 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_QUOTEARG],
+[
+ AC_REQUIRE([AC_C_RESTRICT])
+ :
+])
diff --git a/src/grep/m4/raise.m4 b/src/grep/m4/raise.m4
new file mode 100644
index 0000000..4bf0ca9
--- /dev/null
+++ b/src/grep/m4/raise.m4
@@ -0,0 +1,36 @@
+# raise.m4 serial 4
+dnl Copyright (C) 2011-2021 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/src/grep/m4/rawmemchr.m4 b/src/grep/m4/rawmemchr.m4
new file mode 100644
index 0000000..452fab1
--- /dev/null
+++ b/src/grep/m4/rawmemchr.m4
@@ -0,0 +1,20 @@
+# rawmemchr.m4 serial 3
+dnl Copyright (C) 2003, 2007-2021 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/src/grep/m4/read.m4 b/src/grep/m4/read.m4
new file mode 100644
index 0000000..c162b7c
--- /dev/null
+++ b/src/grep/m4/read.m4
@@ -0,0 +1,28 @@
+# read.m4 serial 5
+dnl Copyright (C) 2011-2021 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_READ],
+[
+ 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_READ=1
+ fi
+ ])
+ dnl This ifdef is just an optimization, to avoid performing a configure
+ dnl check whose result is not used. It does not make the test of
+ dnl GNULIB_UNISTD_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.
+ m4_ifdef([gl_NONBLOCKING_IO], [
+ gl_NONBLOCKING_IO
+ if test $gl_cv_have_nonblocking != yes; then
+ REPLACE_READ=1
+ fi
+ ])
+])
+
+# Prerequisites of lib/read.c.
+AC_DEFUN([gl_PREREQ_READ], [:])
diff --git a/src/grep/m4/readdir.m4 b/src/grep/m4/readdir.m4
new file mode 100644
index 0000000..94dc99c
--- /dev/null
+++ b/src/grep/m4/readdir.m4
@@ -0,0 +1,15 @@
+# readdir.m4 serial 1
+dnl Copyright (C) 2011-2021 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 $ac_cv_func_readdir = no; then
+ HAVE_READDIR=0
+ fi
+])
diff --git a/src/grep/m4/realloc.m4 b/src/grep/m4/realloc.m4
new file mode 100644
index 0000000..0abc418
--- /dev/null
+++ b/src/grep/m4/realloc.m4
@@ -0,0 +1,63 @@
+# realloc.m4 serial 24
+dnl Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# This is adapted with modifications from upstream Autoconf here:
+# https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/functions.m4?id=v2.70#n1455
+AC_DEFUN([_AC_FUNC_REALLOC_IF],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+ AC_CACHE_CHECK([whether realloc (0, 0) returns nonnull],
+ [ac_cv_func_realloc_0_nonnull],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdlib.h>
+ ]],
+ [[void *p = realloc (0, 0);
+ int result = !p;
+ free (p);
+ return result;]])
+ ],
+ [ac_cv_func_realloc_0_nonnull=yes],
+ [ac_cv_func_realloc_0_nonnull=no],
+ [case "$host_os" in
+ # Guess yes on platforms where we know the result.
+ *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
+ | gnu* | *-musl* | 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 = 0; then
+ _AC_FUNC_REALLOC_IF([], [REPLACE_REALLOC=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 $REPLACE_MALLOC = 1; then
+ REPLACE_REALLOC=1
+ fi
+])
diff --git a/src/grep/m4/reallocarray.m4 b/src/grep/m4/reallocarray.m4
new file mode 100644
index 0000000..9d8a626
--- /dev/null
+++ b/src/grep/m4/reallocarray.m4
@@ -0,0 +1,23 @@
+# reallocarray.m4 serial 3
+dnl Copyright (C) 2017-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_REALLOCARRAY],
+[
+ dnl Persuade glibc <stdlib.h> to declare reallocarray.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF])
+ AC_CHECK_FUNCS([reallocarray])
+ if test "$ac_cv_func_reallocarray" = no; then
+ HAVE_REALLOCARRAY=0
+ 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/src/grep/m4/regex.m4 b/src/grep/m4/regex.m4
new file mode 100644
index 0000000..1c7e562
--- /dev/null
+++ b/src/grep/m4/regex.m4
@@ -0,0 +1,396 @@
+# serial 73
+
+# Copyright (C) 1996-2001, 2003-2021 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern (pat, sizeof pat - 1, &regex);
+ if (s)
+ result |= 1;
+ else
+ {
+ if (re_search (&regex, data, sizeof data - 1,
+ 0, sizeof data - 1, &regs)
+ != -1)
+ result |= 1;
+ regfree (&regex);
+ }
+ }
+
+ {
+ /* 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern (pat, sizeof pat - 1, &regex);
+ if (s)
+ result |= 1;
+ else
+ {
+ i = re_search (&regex, data, sizeof data - 1,
+ 0, sizeof data - 1, 0);
+ if (i != 0 && i != 21)
+ result |= 1;
+ regfree (&regex);
+ }
+ }
+
+ 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("a[^x]b", 6, &regex);
+ if (s)
+ result |= 2;
+ else
+ {
+ /* This should fail, but succeeds for glibc-2.5. */
+ if (re_search (&regex, "a\nb", 3, 0, 3, &regs) != -1)
+ result |= 2;
+ regfree (&regex);
+ }
+
+ /* This regular expression is from Spencer ere test number 75
+ in grep-2.3. */
+ re_set_syntax (RE_SYNTAX_POSIX_EGREP);
+ memset (&regex, 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, &regex);
+ /* This should fail with _Invalid character class name_ error. */
+ if (!s)
+ {
+ result |= 4;
+ regfree (&regex);
+ }
+
+ /* 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("a[b-a]", 6, &regex);
+ if (s == 0)
+ {
+ result |= 8;
+ regfree (&regex);
+ }
+
+ /* This should succeed, but does not for glibc-2.1.3. */
+ memset (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("{1", 2, &regex);
+ if (s)
+ result |= 8;
+ else
+ regfree (&regex);
+
+ /* The following example is derived from a problem report
+ against gawk from Jorge Stolfi <stolfi@ic.unicamp.br>. */
+ memset (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("[an\371]*n", 7, &regex);
+ if (s)
+ result |= 8;
+ else
+ {
+ /* This should match, but does not for glibc-2.2.1. */
+ if (re_match (&regex, "an", 2, 0, &regs) != 2)
+ result |= 8;
+ else
+ {
+ free (regs.start);
+ free (regs.end);
+ }
+ regfree (&regex);
+ }
+
+ memset (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("x", 1, &regex);
+ if (s)
+ result |= 8;
+ else
+ {
+ /* glibc-2.2.93 does not work with a negative RANGE argument. */
+ if (re_search (&regex, "wxy", 3, 2, -2, &regs) != 1)
+ result |= 8;
+ else
+ {
+ free (regs.start);
+ free (regs.end);
+ }
+ regfree (&regex);
+ }
+
+ /* 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("x", 1, &regex);
+ if (s)
+ result |= 16;
+ else
+ {
+ if (re_search (&regex, "WXY", 3, 0, 3, &regs) < 0)
+ result |= 16;
+ else
+ {
+ free (regs.start);
+ free (regs.end);
+ }
+ regfree (&regex);
+ }
+
+ /* 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("[[:alnum:]_-]\\\\+\$", 16, &regex);
+ if (s)
+ result |= 32;
+ else
+ regfree (&regex);
+
+ /* 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 (&regex, 0, sizeof regex);
+ s = re_compile_pattern ("0|()0|\\\\1|0", 10, &regex);
+ if (!s)
+ {
+ memset (&regs, 0, sizeof regs);
+ i = re_search (&regex, "x", 1, 0, 1, &regs);
+ if (i != -1)
+ result |= 64;
+ if (0 <= i)
+ {
+ free (regs.start);
+ free (regs.end);
+ }
+ regfree (&regex);
+ }
+ else
+ {
+ if (strcmp (s, "Invalid back reference"))
+ result |= 64;
+ }
+
+ /* glibc bug 11053. */
+ re_set_syntax (RE_SYNTAX_POSIX_BASIC);
+ memset (&regex, 0, sizeof regex);
+ static char const pat_sub2[] = "\\\\(a*\\\\)*a*\\\\1";
+ s = re_compile_pattern (pat_sub2, sizeof pat_sub2 - 1, &regex);
+ if (s)
+ result |= 64;
+ else
+ {
+ memset (&regs, 0, sizeof regs);
+ static char const data[] = "a";
+ int datalen = sizeof data - 1;
+ i = re_search (&regex, data, datalen, 0, datalen, &regs);
+ 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 (&regex);
+ 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/src/grep/m4/safe-read.m4 b/src/grep/m4/safe-read.m4
new file mode 100644
index 0000000..3cba288
--- /dev/null
+++ b/src/grep/m4/safe-read.m4
@@ -0,0 +1,12 @@
+# safe-read.m4 serial 6
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2021 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.
+
+# Prerequisites of lib/safe-read.c.
+AC_DEFUN([gl_PREREQ_SAFE_READ],
+[
+ AC_REQUIRE([gt_TYPE_SSIZE_T])
+])
diff --git a/src/grep/m4/save-cwd.m4 b/src/grep/m4/save-cwd.m4
new file mode 100644
index 0000000..74cfe96
--- /dev/null
+++ b/src/grep/m4/save-cwd.m4
@@ -0,0 +1,11 @@
+# serial 10
+dnl Copyright (C) 2002-2006, 2009-2021 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/src/grep/m4/sched_h.m4 b/src/grep/m4/sched_h.m4
new file mode 100644
index 0000000..a840e3d
--- /dev/null
+++ b/src/grep/m4/sched_h.m4
@@ -0,0 +1,106 @@
+# sched_h.m4 serial 15
+dnl Copyright (C) 2008-2021 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_SCHED_H],
+[
+ dnl Ensure to expand the default settings once only, before all statements
+ dnl that occur in other macros.
+ AC_REQUIRE([gl_SCHED_H_DEFAULTS])
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ AC_CHECK_HEADERS_ONCE([sys/cdefs.h])
+ AC_CHECK_HEADERS([sched.h], [], [],
+ [[#if HAVE_SYS_CDEFS_H
+ #include <sys/cdefs.h>
+ #endif
+ ]])
+ gl_NEXT_HEADERS([sched.h])
+
+ if test "$ac_cv_header_sched_h" = yes; then
+ HAVE_SCHED_H=1
+ else
+ HAVE_SCHED_H=0
+ fi
+ AC_SUBST([HAVE_SCHED_H])
+
+ if test "$HAVE_SCHED_H" = 1; then
+ AC_CHECK_TYPE([struct sched_param],
+ [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0],
+ [[#if HAVE_SYS_CDEFS_H
+ #include <sys/cdefs.h>
+ #endif
+ #include <sched.h>
+ ]])
+ else
+ HAVE_STRUCT_SCHED_PARAM=0
+ case "$host_os" in
+ os2*)
+ dnl On OS/2 kLIBC, struct sched_param is in spawn.h.
+ AC_CHECK_TYPE([struct sched_param],
+ [HAVE_STRUCT_SCHED_PARAM=1], [],
+ [#include <spawn.h>])
+ ;;
+ vms)
+ dnl On OpenVMS 7.2 or newer, struct sched_param is in pthread.h.
+ AC_CHECK_TYPE([struct sched_param],
+ [HAVE_STRUCT_SCHED_PARAM=1], [],
+ [#include <pthread.h>])
+ ;;
+ esac
+ fi
+ AC_SUBST([HAVE_STRUCT_SCHED_PARAM])
+
+ 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])
+
+ 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, if it is not common
+ dnl enough to be declared everywhere.
+ gl_WARN_ON_USE_PREPARE([[#include <sched.h>
+ ]], [sched_yield])
+])
+
+# gl_SCHED_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_SCHED_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_SCHED_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([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_SCHED_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_SCHED_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SCHED_YIELD])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_SCHED_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_SCHED_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_SCHED_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_SCHED_YIELD=1; AC_SUBST([HAVE_SCHED_YIELD])
+ REPLACE_SCHED_YIELD=0; AC_SUBST([REPLACE_SCHED_YIELD])
+])
diff --git a/src/grep/m4/select.m4 b/src/grep/m4/select.m4
new file mode 100644
index 0000000..72c068f
--- /dev/null
+++ b/src/grep/m4/select.m4
@@ -0,0 +1,117 @@
+# select.m4 serial 13
+dnl Copyright (C) 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_SELECT],
+[
+ AC_REQUIRE([gl_SYS_SELECT_H])
+ AC_REQUIRE([AC_C_RESTRICT])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_SOCKETS])
+ if test "$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 "$host_os" in
+ # Guess yes on Linux systems.
+ linux-* | linux) gl_cv_func_select_detects_ebadf="guessing yes" ;;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_select_detects_ebadf="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_select_detects_ebadf="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
+ case $gl_cv_func_select_detects_ebadf in
+ *yes) ;;
+ *) REPLACE_SELECT=1 ;;
+ esac
+ fi
+
+ dnl Determine the needed libraries.
+ LIB_SELECT="$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;
+}]])],
+ [],
+ [LIB_SELECT="$LIB_SELECT -luser32"])
+ ;;
+ esac
+ fi
+ AC_SUBST([LIB_SELECT])
+])
diff --git a/src/grep/m4/setenv.m4 b/src/grep/m4/setenv.m4
new file mode 100644
index 0000000..f79a278
--- /dev/null
+++ b/src/grep/m4/setenv.m4
@@ -0,0 +1,166 @@
+# setenv.m4 serial 30
+dnl Copyright (C) 2001-2004, 2006-2021 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*) 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([AC_FUNC_ALLOCA])
+ AC_REQUIRE([gl_ENVIRON])
+ AC_CHECK_HEADERS_ONCE([unistd.h])
+ AC_CHECK_HEADERS([search.h])
+ AC_CHECK_FUNCS([tsearch])
+])
+
+# Prerequisites of lib/unsetenv.c.
+AC_DEFUN([gl_PREREQ_UNSETENV],
+[
+ AC_REQUIRE([gl_ENVIRON])
+ AC_CHECK_HEADERS_ONCE([unistd.h])
+])
diff --git a/src/grep/m4/setlocale.m4 b/src/grep/m4/setlocale.m4
new file mode 100644
index 0000000..305dcaa
--- /dev/null
+++ b/src/grep/m4/setlocale.m4
@@ -0,0 +1,85 @@
+# setlocale.m4 serial 7
+dnl Copyright (C) 2011-2021 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],
+[
+ AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
+ AC_REQUIRE([gl_FUNC_SETLOCALE_NULL])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ dnl Test whether we need to improve on the general working of setlocale.
+ NEED_SETLOCALE_IMPROVED=0
+ case "$host_os" in
+ dnl On native Windows systems, setlocale(category,NULL) does not look at
+ dnl the environment variables LC_ALL, category, and LANG.
+ mingw*) NEED_SETLOCALE_IMPROVED=1 ;;
+ dnl On Cygwin 1.5.x, setlocale always succeeds but setlocale(LC_CTYPE,NULL)
+ dnl is then still "C".
+ cygwin*)
+ case `uname -r` in
+ 1.5.*) NEED_SETLOCALE_IMPROVED=1 ;;
+ esac
+ ;;
+ dnl On Android 4.3, setlocale(category,"C") always fails.
+ *)
+ AC_CACHE_CHECK([whether setlocale supports the C locale],
+ [gl_cv_func_setlocale_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+int main ()
+{
+ return setlocale (LC_ALL, "C") == NULL;
+}]])],
+ [gl_cv_func_setlocale_works=yes],
+ [gl_cv_func_setlocale_works=no],
+ [case "$host_os" in
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_setlocale_works="guessing no";;
+ # Guess yes otherwise.
+ *) gl_cv_func_setlocale_works="guessing yes";;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_setlocale_works" in
+ *yes) ;;
+ *) NEED_SETLOCALE_IMPROVED=1 ;;
+ esac
+ ;;
+ esac
+ AC_DEFINE_UNQUOTED([NEED_SETLOCALE_IMPROVED], [$NEED_SETLOCALE_IMPROVED],
+ [Define to 1 to enable general improvements of setlocale.])
+
+ dnl Test whether we need a multithread-safe setlocale(category,NULL).
+ NEED_SETLOCALE_MTSAFE=0
+ if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then
+ NEED_SETLOCALE_MTSAFE=1
+ fi
+ AC_DEFINE_UNQUOTED([NEED_SETLOCALE_MTSAFE], [$NEED_SETLOCALE_MTSAFE],
+ [Define to 1 to enable a multithread-safety fix of setlocale.])
+
+ if test $NEED_SETLOCALE_IMPROVED = 1 || test $NEED_SETLOCALE_MTSAFE = 1; then
+ REPLACE_SETLOCALE=1
+ fi
+
+ if test $NEED_SETLOCALE_MTSAFE = 1; then
+ LIB_SETLOCALE="$LIB_SETLOCALE_NULL"
+ else
+ LIB_SETLOCALE=
+ fi
+ dnl LIB_SETLOCALE is expected to be '-pthread' or '-lpthread' on AIX with gcc
+ dnl or xlc, and empty otherwise.
+ AC_SUBST([LIB_SETLOCALE])
+])
+
+# Prerequisites of lib/setlocale.c.
+AC_DEFUN([gl_PREREQ_SETLOCALE],
+[
+ dnl No need to check for CFLocaleCopyPreferredLanguages and
+ dnl CFPreferencesCopyAppValue because lib/setlocale.c is not used on Mac OS X.
+ dnl (The Mac OS X specific code is only used in libintl.)
+ :
+])
diff --git a/src/grep/m4/setlocale_null.m4 b/src/grep/m4/setlocale_null.m4
new file mode 100644
index 0000000..2c958ed
--- /dev/null
+++ b/src/grep/m4/setlocale_null.m4
@@ -0,0 +1,98 @@
+# setlocale_null.m4 serial 5
+dnl Copyright (C) 2019-2021 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 "$host_os" in
+ # Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin.
+ *-musl* | darwin* | freebsd* | midnightbsd* | netbsd* | openbsd* | aix* | haiku* | cygwin*)
+ gl_cv_func_setlocale_null_all_mtsafe=no ;;
+ # Guess yes on glibc, HP-UX, IRIX, Solaris, native Windows.
+ *-gnu* | gnu* | hpux* | irix* | solaris* | mingw*)
+ gl_cv_func_setlocale_null_all_mtsafe=yes ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *)
+ gl_cv_func_setlocale_null_all_mtsafe="$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* | 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*) LIB_SETLOCALE_NULL= ;;
+ *)
+ gl_WEAK_SYMBOLS
+ case "$gl_cv_have_weak" in
+ *yes) LIB_SETLOCALE_NULL= ;;
+ *) LIB_SETLOCALE_NULL="$LIBPTHREAD" ;;
+ esac
+ ;;
+ esac
+ else
+ LIB_SETLOCALE_NULL=
+ fi
+ dnl LIB_SETLOCALE_NULL is expected to be '-pthread' or '-lpthread' on AIX
+ dnl with gcc or xlc, and empty otherwise.
+ AC_SUBST([LIB_SETLOCALE_NULL])
+])
+
+# Prerequisites of lib/setlocale-lock.c.
+AC_DEFUN([gl_PREREQ_SETLOCALE_LOCK],
+[
+ gl_VISIBILITY
+])
diff --git a/src/grep/m4/sigaction.m4 b/src/grep/m4/sigaction.m4
new file mode 100644
index 0000000..a8c1d15
--- /dev/null
+++ b/src/grep/m4/sigaction.m4
@@ -0,0 +1,40 @@
+# sigaction.m4 serial 7
+dnl Copyright (C) 2008-2021 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 $ac_cv_type_siginfo_t = no; then
+ HAVE_SIGINFO_T=0
+ fi
+])
+
+# Prerequisites of lib/sig-handler.h.
+AC_DEFUN([gl_PREREQ_SIG_HANDLER_H], [:])
diff --git a/src/grep/m4/sigaltstack.m4 b/src/grep/m4/sigaltstack.m4
new file mode 100644
index 0000000..6dbd677
--- /dev/null
+++ b/src/grep/m4/sigaltstack.m4
@@ -0,0 +1,197 @@
+# sigaltstack.m4 serial 15
+dnl Copyright (C) 2002-2021 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl Written by Bruno Haible and Eric Blake.
+
+AC_DEFUN([SV_SIGALTSTACK],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ AC_CHECK_FUNCS_ONCE([sigaltstack setrlimit])
+
+ if test "$ac_cv_func_sigaltstack" = yes; then
+ AC_CHECK_TYPE([stack_t], ,
+ [AC_DEFINE(stack_t, [struct sigaltstack],
+ [Define to 'struct sigaltstack' if that's the type of the argument to sigaltstack])
+ ],
+ [
+#include <signal.h>
+#if HAVE_SYS_SIGNAL_H
+# include <sys/signal.h>
+#endif
+ ])
+ fi
+
+ AC_CACHE_CHECK([for working sigaltstack], [sv_cv_sigaltstack], [
+ if test "$ac_cv_func_sigaltstack" = yes; then
+ case "$host_os" in
+ macos* | darwin[[6-9]]* | darwin[[1-9]][[0-9]]*)
+ # On MacOS X 10.2 or newer, just assume that if it compiles, it will
+ # work. If we were to perform the real test, 1 Crash Report dialog
+ # window would pop up.
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <signal.h>]],
+ [[int x = SA_ONSTACK; stack_t ss; sigaltstack ((stack_t*)0, &ss);]])],
+ [sv_cv_sigaltstack="guessing yes"],
+ [sv_cv_sigaltstack=no])
+ ;;
+ *)
+ AC_RUN_IFELSE([
+ AC_LANG_SOURCE([[
+#include <stdlib.h>
+#include <signal.h>
+#if HAVE_SYS_SIGNAL_H
+# include <sys/signal.h>
+#endif
+#if HAVE_SETRLIMIT
+# include <sys/types.h>
+# include <sys/time.h>
+# include <sys/resource.h>
+#endif
+void stackoverflow_handler (int sig)
+{
+ /* If we get here, the stack overflow was caught. */
+ exit (0);
+}
+volatile int * recurse_1 (volatile int n, volatile int *p)
+{
+ if (n >= 0)
+ *recurse_1 (n + 1, p) += n;
+ return p;
+}
+int recurse (volatile int n)
+{
+ int sum = 0;
+ return *recurse_1 (n, &sum);
+}
+char mystack[2 * (1 << 24)];
+int main ()
+{
+ stack_t altstack;
+ struct sigaction action;
+#if defined HAVE_SETRLIMIT && defined RLIMIT_STACK
+ /* Before starting the endless recursion, try to be friendly to the user's
+ machine. On some Linux 2.2.x systems, there is no stack limit for user
+ processes at all. We don't want to kill such systems. */
+ struct rlimit rl;
+ rl.rlim_cur = rl.rlim_max = 0x100000; /* 1 MB */
+ setrlimit (RLIMIT_STACK, &rl);
+#endif
+ /* Install the alternate stack. Use the midpoint of mystack, to guard
+ against a buggy interpretation of ss_sp on IRIX. */
+#ifdef SIGSTKSZ
+ if (sizeof mystack / 2 < SIGSTKSZ)
+ exit (3);
+#endif
+ altstack.ss_sp = mystack + sizeof mystack / 2;
+ altstack.ss_size = sizeof mystack / 2;
+ altstack.ss_flags = 0; /* no SS_DISABLE */
+ if (sigaltstack (&altstack, NULL) < 0)
+ exit (1);
+ /* Install the SIGSEGV handler. */
+ sigemptyset (&action.sa_mask);
+ action.sa_handler = &stackoverflow_handler;
+ action.sa_flags = SA_ONSTACK;
+ sigaction (SIGSEGV, &action, (struct sigaction *) NULL);
+ sigaction (SIGBUS, &action, (struct sigaction *) NULL);
+ /* Provoke a stack overflow. */
+ recurse (0);
+ exit (2);
+}]])],
+ [sv_cv_sigaltstack=yes],
+ [sv_cv_sigaltstack=no],
+ [
+ dnl FIXME: Put in some more known values here.
+ case "$host_os" in
+ *)
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <signal.h>]],
+ [[int x = SA_ONSTACK; stack_t ss; sigaltstack ((stack_t*)0, &ss);]])],
+ [sv_cv_sigaltstack="guessing yes"],
+ [sv_cv_sigaltstack=no])
+ ;;
+ esac
+ ])
+ ;;
+ esac
+ else
+ sv_cv_sigaltstack=no
+ fi
+ ])
+ if test "$sv_cv_sigaltstack" != no; then
+ AC_DEFINE([HAVE_WORKING_SIGALTSTACK], [1],
+ [Define if you have the sigaltstack() function and it works.])
+
+ dnl The ss_sp field of a stack_t is, according to POSIX, the lowest address
+ dnl of the memory block designated as an alternate stack. But IRIX 5.3
+ dnl interprets it as the highest address!
+ AC_CACHE_CHECK([for correct stack_t interpretation],
+ [sv_cv_sigaltstack_low_base], [
+ AC_RUN_IFELSE([
+ AC_LANG_SOURCE([[
+#include <stdlib.h>
+#include <signal.h>
+#if HAVE_SYS_SIGNAL_H
+# include <sys/signal.h>
+#endif
+volatile char *stack_lower_bound;
+volatile char *stack_upper_bound;
+static void check_stack_location (volatile char *addr)
+{
+ if (addr >= stack_lower_bound && addr <= stack_upper_bound)
+ exit (0);
+ else
+ exit (1);
+}
+static void stackoverflow_handler (int sig)
+{
+ char dummy;
+ check_stack_location (&dummy);
+}
+char mystack[2 * (1 << 24)];
+int main ()
+{
+ stack_t altstack;
+ struct sigaction action;
+ /* Install the alternate stack. */
+ altstack.ss_sp = mystack + sizeof mystack / 2;
+ altstack.ss_size = sizeof mystack / 2;
+ stack_lower_bound = (char *) altstack.ss_sp;
+ stack_upper_bound = (char *) altstack.ss_sp + altstack.ss_size - 1;
+ altstack.ss_flags = 0; /* no SS_DISABLE */
+ if (sigaltstack (&altstack, NULL) < 0)
+ exit (2);
+ /* Install the SIGSEGV handler. */
+ sigemptyset (&action.sa_mask);
+ action.sa_handler = &stackoverflow_handler;
+ action.sa_flags = SA_ONSTACK;
+ if (sigaction (SIGSEGV, &action, (struct sigaction *) NULL) < 0)
+ exit(3);
+ /* Provoke a SIGSEGV. */
+ raise (SIGSEGV);
+ exit (3);
+}]])],
+ [sv_cv_sigaltstack_low_base=yes],
+ [sv_cv_sigaltstack_low_base=no],
+ [
+ dnl FIXME: Put in some more known values here.
+ case "$host_os" in
+ irix5*) sv_cv_sigaltstack_low_base="no" ;;
+ *) sv_cv_sigaltstack_low_base="guessing yes" ;;
+ esac
+ ])
+ ])
+ if test "$sv_cv_sigaltstack_low_base" = no; then
+ AC_DEFINE([SIGALTSTACK_SS_REVERSED], [1],
+ [Define if sigaltstack() interprets the stack_t.ss_sp field incorrectly,
+ as the highest address of the alternate stack range rather than as the
+ lowest address.])
+ fi
+ fi
+])
diff --git a/src/grep/m4/signal_h.m4 b/src/grep/m4/signal_h.m4
new file mode 100644
index 0000000..8b93880
--- /dev/null
+++ b/src/grep/m4/signal_h.m4
@@ -0,0 +1,100 @@
+# signal_h.m4 serial 22
+dnl Copyright (C) 2007-2021 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/src/grep/m4/signalblocking.m4 b/src/grep/m4/signalblocking.m4
new file mode 100644
index 0000000..bfd76b7
--- /dev/null
+++ b/src/grep/m4/signalblocking.m4
@@ -0,0 +1,23 @@
+# signalblocking.m4 serial 17
+dnl Copyright (C) 2001-2002, 2006-2021 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/src/grep/m4/size_max.m4 b/src/grep/m4/size_max.m4
new file mode 100644
index 0000000..1d41ce9
--- /dev/null
+++ b/src/grep/m4/size_max.m4
@@ -0,0 +1,75 @@
+# size_max.m4 serial 12
+dnl Copyright (C) 2003, 2005-2006, 2008-2021 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/src/grep/m4/sleep.m4 b/src/grep/m4/sleep.m4
new file mode 100644
index 0000000..49a2dcb
--- /dev/null
+++ b/src/grep/m4/sleep.m4
@@ -0,0 +1,66 @@
+# sleep.m4 serial 11
+dnl Copyright (C) 2007-2021 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 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/src/grep/m4/snprintf.m4 b/src/grep/m4/snprintf.m4
new file mode 100644
index 0000000..8520994
--- /dev/null
+++ b/src/grep/m4/snprintf.m4
@@ -0,0 +1,62 @@
+# snprintf.m4 serial 7
+dnl Copyright (C) 2002-2004, 2007-2021 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 snprintf only if it does not support %1$s,
+dnl but defers to any gnulib snprintf replacements. Therefore, gnulib
+dnl must guarantee that the decision for replacing snprintf is a superset
+dnl of the reasons checked by libintl.
+AC_DEFUN([gl_FUNC_SNPRINTF],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ gl_cv_func_snprintf_usable=no
+ AC_CHECK_FUNCS([snprintf])
+ if test $ac_cv_func_snprintf = yes; then
+ gl_SNPRINTF_SIZE1
+ case "$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_snprintf_usable=yes
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ if test $gl_cv_func_snprintf_usable = no; then
+ gl_REPLACE_SNPRINTF
+ fi
+ AC_CHECK_DECLS_ONCE([snprintf])
+ if test $ac_cv_have_decl_snprintf = no; then
+ HAVE_DECL_SNPRINTF=0
+ fi
+])
+
+AC_DEFUN([gl_REPLACE_SNPRINTF],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_LIBOBJ([snprintf])
+ if test $ac_cv_func_snprintf = yes; then
+ REPLACE_SNPRINTF=1
+ else
+ AC_CHECK_DECLS_ONCE([snprintf])
+ if test $ac_cv_have_decl_snprintf = 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_snprintf, not snprintf.
+ REPLACE_SNPRINTF=1
+ fi
+ fi
+ gl_PREREQ_SNPRINTF
+])
+
+# Prerequisites of lib/snprintf.c.
+AC_DEFUN([gl_PREREQ_SNPRINTF], [:])
diff --git a/src/grep/m4/socketlib.m4 b/src/grep/m4/socketlib.m4
new file mode 100644
index 0000000..0f8a082
--- /dev/null
+++ b/src/grep/m4/socketlib.m4
@@ -0,0 +1,96 @@
+# socketlib.m4 serial 3
+dnl Copyright (C) 2008-2021 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/src/grep/m4/sockets.m4 b/src/grep/m4/sockets.m4
new file mode 100644
index 0000000..02b43b6
--- /dev/null
+++ b/src/grep/m4/sockets.m4
@@ -0,0 +1,17 @@
+# sockets.m4 serial 7
+dnl Copyright (C) 2008-2021 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/src/grep/m4/socklen.m4 b/src/grep/m4/socklen.m4
new file mode 100644
index 0000000..eca1d1b
--- /dev/null
+++ b/src/grep/m4/socklen.m4
@@ -0,0 +1,76 @@
+# socklen.m4 serial 11
+dnl Copyright (C) 2005-2007, 2009-2021 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/src/grep/m4/sockpfaf.m4 b/src/grep/m4/sockpfaf.m4
new file mode 100644
index 0000000..17e14c7
--- /dev/null
+++ b/src/grep/m4/sockpfaf.m4
@@ -0,0 +1,84 @@
+# sockpfaf.m4 serial 10
+dnl Copyright (C) 2004, 2006, 2009-2021 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/src/grep/m4/ssize_t.m4 b/src/grep/m4/ssize_t.m4
new file mode 100644
index 0000000..f0ed509
--- /dev/null
+++ b/src/grep/m4/ssize_t.m4
@@ -0,0 +1,23 @@
+# ssize_t.m4 serial 5 (gettext-0.18.2)
+dnl Copyright (C) 2001-2003, 2006, 2010-2021 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 ssize_t is defined.
+
+AC_DEFUN([gt_TYPE_SSIZE_T],
+[
+ AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <sys/types.h>]],
+ [[int x = sizeof (ssize_t *) + sizeof (ssize_t);
+ return !x;]])],
+ [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
+ if test $gt_cv_ssize_t = no; then
+ AC_DEFINE([ssize_t], [int],
+ [Define as a signed type of the same size as size_t.])
+ fi
+])
diff --git a/src/grep/m4/stack-direction.m4 b/src/grep/m4/stack-direction.m4
new file mode 100644
index 0000000..9328725
--- /dev/null
+++ b/src/grep/m4/stack-direction.m4
@@ -0,0 +1,105 @@
+# stack-direction.m4 serial 7
+dnl Copyright (C) 2002-2021 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl Written by Bruno Haible.
+
+# Determine the stack direction. Define the C macro STACK_DIRECTION.
+AC_DEFUN([SV_STACK_DIRECTION],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_CACHE_CHECK([for stack direction], [sv_cv_stack_direction_msg], [
+ case "$host_cpu" in
+ dnl See the #define STACK_GROWS_DOWNWARD in gcc-3.1/gcc/config/*/*.h.
+ a29k | \
+ aarch64* | \
+ alpha* | \
+ arc | \
+ arm* | strongarm* | xscale* | \
+ avr | avr32 | \
+ bfin | \
+ c1 | c2 | c32 | c34 | c38 | \
+ clipper | \
+ cris | \
+ d30v | \
+ elxsi | \
+ fr30 | \
+ h8300 | \
+ i?86 | x86_64 | \
+ i860 | \
+ ia64 | \
+ m32r | \
+ m68* | \
+ m88k | \
+ mcore | \
+ microblaze | \
+ mips* | \
+ mmix | \
+ mn10200 | \
+ mn10300 | \
+ nios2 | \
+ nds32* | \
+ ns32k | \
+ pdp11 | \
+ pj* | \
+ powerpc* | rs6000 | \
+ riscv* | \
+ romp | \
+ s390* | \
+ sh* | \
+ sparc* | \
+ v850 | \
+ vax | \
+ xtensa)
+ sv_cv_stack_direction=-1 ;;
+ c4x | \
+ dsp16xx | \
+ i960 | \
+ hppa* | parisc* | \
+ stormy16 | \
+ we32k)
+ sv_cv_stack_direction=1 ;;
+ *)
+ if test $cross_compiling = no; then
+ cat > conftest.c <<EOF
+#include <stdio.h>
+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[])
+{
+ printf ("%d\n", find_stack_direction (NULL, argc + 20));
+ return 0;
+}
+EOF
+ AC_TRY_EVAL([ac_link])
+ sv_cv_stack_direction=`./conftest`
+ else
+ sv_cv_stack_direction=0
+ fi
+ ;;
+ esac
+ case $sv_cv_stack_direction in
+ 1) sv_cv_stack_direction_msg="grows up";;
+ -1) sv_cv_stack_direction_msg="grows down";;
+ *) sv_cv_stack_direction_msg="unknown";;
+ esac
+ ])
+ AC_DEFINE_UNQUOTED([STACK_DIRECTION], [$sv_cv_stack_direction],
+ [Define as the direction of stack growth for your system.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => spaghetti stack.])
+])
diff --git a/src/grep/m4/stat-time.m4 b/src/grep/m4/stat-time.m4
new file mode 100644
index 0000000..df1c2a7
--- /dev/null
+++ b/src/grep/m4/stat-time.m4
@@ -0,0 +1,83 @@
+# Checks for stat-related time functions.
+
+# Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2021 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/src/grep/m4/stat.m4 b/src/grep/m4/stat.m4
new file mode 100644
index 0000000..9bcdb72
--- /dev/null
+++ b/src/grep/m4/stat.m4
@@ -0,0 +1,85 @@
+# serial 18
+
+# Copyright (C) 2009-2021 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 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/src/grep/m4/stdalign.m4 b/src/grep/m4/stdalign.m4
new file mode 100644
index 0000000..e22d7f7
--- /dev/null
+++ b/src/grep/m4/stdalign.m4
@@ -0,0 +1,59 @@
+# Check for stdalign.h that conforms to C11.
+
+dnl Copyright 2011-2021 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.
+
+# Prepare for substituting <stdalign.h> if it is not supported.
+
+AC_DEFUN([gl_STDALIGN_H],
+[
+ AC_CACHE_CHECK([for working stdalign.h],
+ [gl_cv_header_working_stdalign_h],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdint.h>
+ #include <stdalign.h>
+ #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=yes],
+ [gl_cv_header_working_stdalign_h=no])])
+
+ if test $gl_cv_header_working_stdalign_h = yes; then
+ STDALIGN_H=''
+ else
+ STDALIGN_H='stdalign.h'
+ fi
+
+ AC_SUBST([STDALIGN_H])
+ AM_CONDITIONAL([GL_GENERATE_STDALIGN_H], [test -n "$STDALIGN_H"])
+])
diff --git a/src/grep/m4/stdarg.m4 b/src/grep/m4/stdarg.m4
new file mode 100644
index 0000000..0b5fb63
--- /dev/null
+++ b/src/grep/m4/stdarg.m4
@@ -0,0 +1,78 @@
+# stdarg.m4 serial 7
+dnl Copyright (C) 2006, 2008-2021 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],
+[
+ STDARG_H=''
+ 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 $gl_aixcc = yes; then
+ dnl Provide a substitute <stdarg.h> file.
+ STDARG_H=stdarg.h
+ gl_NEXT_HEADERS([stdarg.h])
+ dnl Fallback for the case when <stdarg.h> contains only macro definitions.
+ if test "$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 $gl_cv_func___va_copy = yes; then
+ AC_DEFINE([va_copy], [__va_copy],
+ [Define as a macro for copying va_list variables.])
+ else
+ AH_VERBATIM([gl_VA_COPY], [/* A replacement for va_copy, if needed. */
+#define gl_va_copy(a,b) ((a) = (b))])
+ AC_DEFINE([va_copy], [gl_va_copy],
+ [Define as a macro for copying va_list variables.])
+ fi
+ fi
+ fi
+ AC_SUBST([STDARG_H])
+ AM_CONDITIONAL([GL_GENERATE_STDARG_H], [test -n "$STDARG_H"])
+ AC_SUBST([NEXT_STDARG_H])
+])
diff --git a/src/grep/m4/stdbool.m4 b/src/grep/m4/stdbool.m4
new file mode 100644
index 0000000..3169779
--- /dev/null
+++ b/src/grep/m4/stdbool.m4
@@ -0,0 +1,122 @@
+# Check for stdbool.h that conforms to C99.
+
+dnl Copyright (C) 2002-2006, 2009-2021 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.
+
+#serial 8
+
+# Prepare for substituting <stdbool.h> if it is not supported.
+
+AC_DEFUN([AM_STDBOOL_H],
+[
+ AC_REQUIRE([AC_CHECK_HEADER_STDBOOL])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ dnl On some platforms, <stdbool.h> does not exist or does not conform to C99.
+ dnl On Solaris 10 with CC=cc CXX=CC, <stdbool.h> exists but is not usable
+ dnl in C++ mode (and no <cstdbool> exists). In this case, we use our
+ dnl replacement, also in C mode (for binary compatibility between C and C++).
+ if test "$ac_cv_header_stdbool_h" = yes; then
+ case "$host_os" in
+ solaris*)
+ if test -z "$GCC"; then
+ STDBOOL_H='stdbool.h'
+ else
+ STDBOOL_H=''
+ fi
+ ;;
+ *)
+ STDBOOL_H=''
+ ;;
+ esac
+ else
+ STDBOOL_H='stdbool.h'
+ fi
+ AC_SUBST([STDBOOL_H])
+ AM_CONDITIONAL([GL_GENERATE_STDBOOL_H], [test -n "$STDBOOL_H"])
+
+ if test "$ac_cv_type__Bool" = yes; then
+ HAVE__BOOL=1
+ else
+ HAVE__BOOL=0
+ fi
+ AC_SUBST([HAVE__BOOL])
+])
+
+# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
+AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
+
+# This version of the macro is needed in autoconf <= 2.68.
+
+AC_DEFUN([AC_CHECK_HEADER_STDBOOL],
+ [AC_CACHE_CHECK([for stdbool.h that conforms to C99],
+ [ac_cv_header_stdbool_h],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+ #include <stdbool.h>
+
+ #ifdef __cplusplus
+ typedef bool Bool;
+ #else
+ typedef _Bool Bool;
+ #ifndef bool
+ "error: bool is not defined"
+ #endif
+ #ifndef false
+ "error: false is not defined"
+ #endif
+ #if false
+ "error: false is not 0"
+ #endif
+ #ifndef true
+ "error: true is not defined"
+ #endif
+ #if true != 1
+ "error: true is not 1"
+ #endif
+ #endif
+
+ #ifndef __bool_true_false_are_defined
+ "error: __bool_true_false_are_defined is not defined"
+ #endif
+
+ struct s { Bool s: 1; Bool t; bool u: 1; bool v; } s;
+
+ char a[true == 1 ? 1 : -1];
+ char b[false == 0 ? 1 : -1];
+ char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+ char d[(bool) 0.5 == true ? 1 : -1];
+ /* See body of main program for 'e'. */
+ char f[(Bool) 0.0 == false ? 1 : -1];
+ char g[true];
+ char h[sizeof (Bool)];
+ char i[sizeof s.t];
+ enum { j = false, k = true, l = false * true, m = true * 256 };
+ /* The following fails for
+ HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
+ Bool n[m];
+ char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+ char p[-1 - (Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+ /* Catch a bug in an HP-UX C compiler. See
+ https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+ https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html
+ */
+ Bool q = true;
+ Bool *pq = &q;
+ bool *qq = &q;
+ ]],
+ [[
+ bool e = &s;
+ *pq |= q; *pq |= ! q;
+ *qq |= q; *qq |= ! q;
+ /* Refer to every declared value, to avoid compiler optimizations. */
+ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+ + !m + !n + !o + !p + !q + !pq + !qq);
+ ]])],
+ [ac_cv_header_stdbool_h=yes],
+ [ac_cv_header_stdbool_h=no])])
+ AC_CHECK_TYPES([_Bool])
+])
diff --git a/src/grep/m4/stddef_h.m4 b/src/grep/m4/stddef_h.m4
new file mode 100644
index 0000000..1303d2e
--- /dev/null
+++ b/src/grep/m4/stddef_h.m4
@@ -0,0 +1,99 @@
+# stddef_h.m4 serial 11
+dnl Copyright (C) 2009-2021 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])
+
+ STDDEF_H=
+
+ 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(
+ [[#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
+ STDDEF_H=stddef.h
+ fi
+
+ if test $gt_cv_c_wchar_t = no; then
+ HAVE_WCHAR_T=0
+ STDDEF_H=stddef.h
+ 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 $gl_cv_decl_null_works = no; then
+ REPLACE_NULL=1
+ STDDEF_H=stddef.h
+ fi
+
+ AC_SUBST([STDDEF_H])
+ AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"])
+ if test -n "$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/src/grep/m4/stdint.m4 b/src/grep/m4/stdint.m4
new file mode 100644
index 0000000..2eb1652
--- /dev/null
+++ b/src/grep/m4/stdint.m4
@@ -0,0 +1,533 @@
+# stdint.m4 serial 60
+dnl Copyright (C) 2001-2021 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
+ STDINT_H=stdint.h
+ 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
+ STDINT_H=
+ 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 $ac_cv_header_sys_bitypes_h = yes; then
+ HAVE_SYS_BITYPES_H=1
+ fi
+ gl_STDINT_TYPE_PROPERTIES
+ ;;
+ esac
+
+ dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
+ gl_REPLACE_LIMITS_H
+
+ AC_SUBST([HAVE_C99_STDINT_H])
+ AC_SUBST([HAVE_SYS_BITYPES_H])
+ AC_SUBST([HAVE_SYS_INTTYPES_H])
+ AC_SUBST([STDINT_H])
+ AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_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/src/grep/m4/stdint_h.m4 b/src/grep/m4/stdint_h.m4
new file mode 100644
index 0000000..18aa50a
--- /dev/null
+++ b/src/grep/m4/stdint_h.m4
@@ -0,0 +1,27 @@
+# stdint_h.m4 serial 9
+dnl Copyright (C) 1997-2004, 2006, 2008-2021 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 $gl_cv_header_stdint_h = yes; then
+ AC_DEFINE_UNQUOTED([HAVE_STDINT_H_WITH_UINTMAX], [1],
+ [Define if <stdint.h> exists, doesn't clash with <sys/types.h>,
+ and declares uintmax_t. ])
+ fi
+])
diff --git a/src/grep/m4/stdio_h.m4 b/src/grep/m4/stdio_h.m4
new file mode 100644
index 0000000..e704383
--- /dev/null
+++ b/src/grep/m4/stdio_h.m4
@@ -0,0 +1,232 @@
+# stdio_h.m4 serial 56
+dnl Copyright (C) 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN_ONCE([gl_STDIO_H],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AH_VERBATIM([MINGW_ANSI_STDIO],
+[/* Use GNU style printf and scanf. */
+#ifndef __USE_MINGW_ANSI_STDIO
+# undef __USE_MINGW_ANSI_STDIO
+#endif
+])
+ AC_DEFINE([__USE_MINGW_ANSI_STDIO])
+ gl_NEXT_HEADERS([stdio.h])
+
+ dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and
+ dnl inttypes.h behave like gnu instead of system; we must give our
+ dnl printf wrapper the right attribute to match.
+ AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros],
+ [gl_cv_func_printf_attribute_flavor],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #define __STDC_FORMAT_MACROS 1
+ #include <stdio.h>
+ #include <inttypes.h>
+ /* For non-mingw systems, compilation will trivially succeed.
+ For mingw, compilation will succeed for older mingw (system
+ printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */
+ #if (defined _WIN32 && ! defined __CYGWIN__) && \
+ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
+ extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
+ #endif
+ ]])], [gl_cv_func_printf_attribute_flavor=system],
+ [gl_cv_func_printf_attribute_flavor=gnu])])
+ if test "$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 This ifdef is necessary to avoid an error "missing file lib/stdio-read.c"
+ dnl "expected source file, required through AC_LIBSOURCES, not found". It is
+ dnl also an optimization, to avoid performing a configure check whose result
+ dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING
+ dnl 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
+ AC_LIBOBJ([stdio-read])
+ fi
+ ])
+
+ dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c"
+ dnl "expected source file, required through AC_LIBSOURCES, not found". It is
+ dnl also an optimization, to avoid performing a configure check whose result
+ dnl is not used. But it does not make the test of GNULIB_STDIO_H_SIGPIPE or
+ dnl 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
+ AC_LIBOBJ([stdio-write])
+ fi
+ ])
+ dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c"
+ dnl "expected source file, required through AC_LIBSOURCES, not found". It is
+ dnl also an optimization, to avoid performing a configure check whose result
+ dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING
+ dnl 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
+ AC_LIBOBJ([stdio-write])
+ 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
+])
+
+# 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_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_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
+ 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_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/src/grep/m4/stdlib_h.m4 b/src/grep/m4/stdlib_h.m4
new file mode 100644
index 0000000..9c1d1c7
--- /dev/null
+++ b/src/grep/m4/stdlib_h.m4
@@ -0,0 +1,194 @@
+# stdlib_h.m4 serial 63
+dnl Copyright (C) 2007-2021 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 getsubopt grantpt
+ initstate initstate_r 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])
+
+ 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_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_GETSUBOPT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GRANTPT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MALLOC_POSIX])
+ 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_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_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_ALIGNED_ALLOC=0; AC_SUBST([REPLACE_ALIGNED_ALLOC])
+ REPLACE_CALLOC=0; AC_SUBST([REPLACE_CALLOC])
+ REPLACE_CANONICALIZE_FILE_NAME=0; AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME])
+ REPLACE_FREE=0; AC_SUBST([REPLACE_FREE])
+ REPLACE_INITSTATE=0; AC_SUBST([REPLACE_INITSTATE])
+ REPLACE_MALLOC=0; AC_SUBST([REPLACE_MALLOC])
+ REPLACE_MBTOWC=0; AC_SUBST([REPLACE_MBTOWC])
+ REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP])
+ REPLACE_POSIX_MEMALIGN=0; AC_SUBST([REPLACE_POSIX_MEMALIGN])
+ 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=0; AC_SUBST([REPLACE_REALLOC])
+ 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/src/grep/m4/stpcpy.m4 b/src/grep/m4/stpcpy.m4
new file mode 100644
index 0000000..eb44f03
--- /dev/null
+++ b/src/grep/m4/stpcpy.m4
@@ -0,0 +1,25 @@
+# stpcpy.m4 serial 9
+dnl Copyright (C) 2002, 2007, 2009-2021 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])
+ AC_CHECK_FUNCS([stpcpy])
+ if test $ac_cv_func_stpcpy = no; then
+ HAVE_STPCPY=0
+ fi
+])
+
+# Prerequisites of lib/stpcpy.c.
+AC_DEFUN([gl_PREREQ_STPCPY], [
+ :
+])
diff --git a/src/grep/m4/strdup.m4 b/src/grep/m4/strdup.m4
new file mode 100644
index 0000000..5b6018f
--- /dev/null
+++ b/src/grep/m4/strdup.m4
@@ -0,0 +1,32 @@
+# strdup.m4 serial 15
+
+dnl Copyright (C) 2002-2021 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 $ac_cv_have_decl_strdup = no; then
+ HAVE_DECL_STRDUP=0
+ fi
+])
+
+# Prerequisites of lib/strdup.c.
+AC_DEFUN([gl_PREREQ_STRDUP], [:])
diff --git a/src/grep/m4/strerror.m4 b/src/grep/m4/strerror.m4
new file mode 100644
index 0000000..438ba92
--- /dev/null
+++ b/src/grep/m4/strerror.m4
@@ -0,0 +1,102 @@
+# strerror.m4 serial 22
+dnl Copyright (C) 2002, 2007-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRERROR],
+[
+ AC_REQUIRE([gl_STRING_H_DEFAULTS])
+ AC_REQUIRE([gl_HEADER_ERRNO_H])
+ AC_REQUIRE([gl_FUNC_STRERROR_0])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [
+ AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS])
+ ])
+ if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then
+ AC_CACHE_CHECK([for working strerror function],
+ [gl_cv_func_working_strerror],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <string.h>
+ ]],
+ [[if (!*strerror (-2)) return 1;]])],
+ [gl_cv_func_working_strerror=yes],
+ [gl_cv_func_working_strerror=no],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_working_strerror="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) 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*) 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/src/grep/m4/strerror_r.m4 b/src/grep/m4/strerror_r.m4
new file mode 100644
index 0000000..0689e46
--- /dev/null
+++ b/src/grep/m4/strerror_r.m4
@@ -0,0 +1,173 @@
+# strerror_r.m4 serial 21
+dnl Copyright (C) 2002, 2007-2021 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_R],
+[
+ AC_REQUIRE([gl_STRING_H_DEFAULTS])
+ AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS])
+
+ dnl Persuade Solaris <string.h> to declare strerror_r().
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ dnl Some systems don't declare strerror_r() if _THREAD_SAFE and _REENTRANT
+ dnl are not defined.
+ AC_CHECK_DECLS_ONCE([strerror_r])
+ if test $ac_cv_have_decl_strerror_r = no; then
+ HAVE_DECL_STRERROR_R=0
+ fi
+
+ if test $ac_cv_func_strerror_r = yes; then
+ if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then
+ if test $gl_cv_func_strerror_r_posix_signature = yes; then
+ case "$gl_cv_func_strerror_r_works" in
+ dnl The system's strerror_r has bugs. Replace it.
+ *no) REPLACE_STRERROR_R=1 ;;
+ esac
+ else
+ dnl The system's strerror_r() has a wrong signature. Replace it.
+ REPLACE_STRERROR_R=1
+ fi
+ else
+ dnl The system's strerror_r() cannot know about the new errno values we
+ dnl add to <errno.h>, or any fix for strerror(0). Replace it.
+ REPLACE_STRERROR_R=1
+ fi
+ fi
+])
+
+# Prerequisites of lib/strerror_r.c.
+AC_DEFUN([gl_PREREQ_STRERROR_R], [
+ dnl glibc >= 2.3.4 and cygwin 1.7.9 have a function __xpg_strerror_r.
+ AC_CHECK_FUNCS_ONCE([__xpg_strerror_r])
+ AC_CHECK_FUNCS_ONCE([catgets])
+ AC_CHECK_FUNCS_ONCE([snprintf])
+])
+
+# Detect if strerror_r works, but without affecting whether a replacement
+# strerror_r will be used.
+AC_DEFUN([gl_FUNC_STRERROR_R_WORKS],
+[
+ AC_REQUIRE([gl_HEADER_ERRNO_H])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_FUNC_STRERROR_0])
+
+ AC_CHECK_FUNCS_ONCE([strerror_r])
+ if test $ac_cv_func_strerror_r = yes; then
+ if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then
+ dnl The POSIX prototype is: int strerror_r (int, char *, size_t);
+ dnl glibc, Cygwin: char *strerror_r (int, char *, size_t);
+ dnl AIX 5.1, OSF/1 5.1: int strerror_r (int, char *, int);
+ AC_CACHE_CHECK([for strerror_r with POSIX signature],
+ [gl_cv_func_strerror_r_posix_signature],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <string.h>
+ int strerror_r (int, char *, size_t);
+ ]],
+ [])],
+ [gl_cv_func_strerror_r_posix_signature=yes],
+ [gl_cv_func_strerror_r_posix_signature=no])
+ ])
+ if test $gl_cv_func_strerror_r_posix_signature = yes; then
+ dnl AIX 6.1 strerror_r fails by returning -1, not an error number.
+ dnl HP-UX 11.31 strerror_r always fails when the buffer length argument
+ dnl is less than 80.
+ dnl FreeBSD 8.s strerror_r claims failure on 0
+ dnl Mac OS X 10.5 strerror_r treats 0 like -1
+ dnl Solaris 10 strerror_r corrupts errno on failure
+ AC_CACHE_CHECK([whether strerror_r works],
+ [gl_cv_func_strerror_r_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <errno.h>
+ #include <string.h>
+ ]],
+ [[int result = 0;
+ char buf[79];
+ if (strerror_r (EACCES, buf, 0) < 0)
+ result |= 1;
+ errno = 0;
+ if (strerror_r (EACCES, buf, sizeof buf) != 0)
+ result |= 2;
+ strcpy (buf, "Unknown");
+ if (strerror_r (0, buf, sizeof buf) != 0)
+ result |= 4;
+ if (errno)
+ result |= 8;
+ if (strstr (buf, "nknown") || strstr (buf, "ndefined"))
+ result |= 0x10;
+ errno = 0;
+ *buf = 0;
+ if (strerror_r (-3, buf, sizeof buf) < 0)
+ result |= 0x20;
+ if (errno)
+ result |= 0x40;
+ if (!*buf)
+ result |= 0x80;
+ return result;
+ ]])],
+ [gl_cv_func_strerror_r_works=yes],
+ [gl_cv_func_strerror_r_works=no],
+ [
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on AIX.
+ aix*) gl_cv_func_strerror_r_works="guessing no";;
+ # Guess no on HP-UX.
+ hpux*) gl_cv_func_strerror_r_works="guessing no";;
+ # Guess no on BSD variants.
+ *bsd*) gl_cv_func_strerror_r_works="guessing no";;
+ # Guess yes otherwise.
+ *) gl_cv_func_strerror_r_works="guessing yes";;
+ esac
+changequote([,])dnl
+ ])
+ ])
+ else
+ dnl The system's strerror() has a wrong signature.
+ dnl glibc >= 2.3.4 and cygwin 1.7.9 have a function __xpg_strerror_r.
+ AC_CHECK_FUNCS_ONCE([__xpg_strerror_r])
+ dnl In glibc < 2.14, __xpg_strerror_r does not populate buf on failure.
+ dnl In cygwin < 1.7.10, __xpg_strerror_r clobbers strerror's buffer.
+ if test $ac_cv_func___xpg_strerror_r = yes; then
+ AC_CACHE_CHECK([whether __xpg_strerror_r works],
+ [gl_cv_func_strerror_r_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <errno.h>
+ #include <string.h>
+ extern
+ #ifdef __cplusplus
+ "C"
+ #endif
+ int __xpg_strerror_r(int, char *, size_t);
+ ]],
+ [[int result = 0;
+ char buf[256] = "^";
+ char copy[256];
+ char *str = strerror (-1);
+ strcpy (copy, str);
+ if (__xpg_strerror_r (-2, buf, 1) == 0)
+ result |= 1;
+ if (*buf)
+ result |= 2;
+ __xpg_strerror_r (-2, buf, 256);
+ if (strcmp (str, copy))
+ result |= 4;
+ return result;
+ ]])],
+ [gl_cv_func_strerror_r_works=yes],
+ [gl_cv_func_strerror_r_works=no],
+ [dnl Guess no on all platforms that have __xpg_strerror_r,
+ dnl at least until fixed glibc and cygwin are more common.
+ gl_cv_func_strerror_r_works="$gl_cross_guess_normal"
+ ])
+ ])
+ fi
+ fi
+ fi
+ fi
+])
diff --git a/src/grep/m4/string_h.m4 b/src/grep/m4/string_h.m4
new file mode 100644
index 0000000..80d1e58
--- /dev/null
+++ b/src/grep/m4/string_h.m4
@@ -0,0 +1,143 @@
+# Configure a GNU-like replacement for <string.h>.
+
+# Copyright (C) 2007-2021 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 32
+
+# 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>
+ ]],
+ [ffsl ffsll memmem mempcpy memrchr 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_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])
+ 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_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_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/src/grep/m4/strnlen.m4 b/src/grep/m4/strnlen.m4
new file mode 100644
index 0000000..1d4f106
--- /dev/null
+++ b/src/grep/m4/strnlen.m4
@@ -0,0 +1,30 @@
+# strnlen.m4 serial 14
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2021 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/src/grep/m4/strstr.m4 b/src/grep/m4/strstr.m4
new file mode 100644
index 0000000..a32e9c1
--- /dev/null
+++ b/src/grep/m4/strstr.m4
@@ -0,0 +1,149 @@
+# strstr.m4 serial 24
+dnl Copyright (C) 2008-2021 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 strstr works.
+AC_DEFUN([gl_FUNC_STRSTR_SIMPLE],
+[
+ AC_REQUIRE([gl_STRING_H_DEFAULTS])
+ AC_REQUIRE([gl_FUNC_MEMCHR])
+ if test $REPLACE_MEMCHR = 1; then
+ REPLACE_STRSTR=1
+ else
+ dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092
+ dnl and https://sourceware.org/bugzilla/show_bug.cgi?id=23637.
+ AC_CACHE_CHECK([whether strstr works],
+ [gl_cv_func_strstr_works_always],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+#include <string.h> /* for __GNU_LIBRARY__, strstr */
+#ifdef __GNU_LIBRARY__
+ #include <features.h>
+ #if __GLIBC__ == 2 && __GLIBC_MINOR__ == 28
+ Unlucky user
+ #endif
+#endif
+#define P "_EF_BF_BD"
+#define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P
+#define NEEDLE P P P P P
+]],
+ [[return !!strstr (HAYSTACK, NEEDLE);
+ ]])],
+ [gl_cv_func_strstr_works_always=yes],
+ [gl_cv_func_strstr_works_always=no],
+ [dnl glibc 2.12 and cygwin 1.7.7 have a known bug. uClibc is not
+ dnl affected, since it uses different source code for strstr than
+ dnl glibc.
+ dnl Assume that it works on all other platforms, even if it is not
+ dnl linear.
+ AC_EGREP_CPP([Lucky user],
+ [
+#include <string.h> /* for __GNU_LIBRARY__ */
+#ifdef __GNU_LIBRARY__
+ #include <features.h>
+ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \
+ || defined __UCLIBC__
+ Lucky user
+ #endif
+#elif defined __CYGWIN__
+ #include <cygwin/version.h>
+ #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7)
+ Lucky user
+ #endif
+#else
+ Lucky user
+#endif
+ ],
+ [gl_cv_func_strstr_works_always="guessing yes"],
+ [gl_cv_func_strstr_works_always="$gl_cross_guess_normal"])
+ ])
+ ])
+ case "$gl_cv_func_strstr_works_always" in
+ *yes) ;;
+ *)
+ REPLACE_STRSTR=1
+ ;;
+ esac
+ fi
+]) # gl_FUNC_STRSTR_SIMPLE
+
+dnl Additionally, check that strstr is efficient.
+AC_DEFUN([gl_FUNC_STRSTR],
+[
+ AC_REQUIRE([gl_FUNC_STRSTR_SIMPLE])
+ if test $REPLACE_STRSTR = 0; then
+ AC_CACHE_CHECK([whether strstr works in linear time],
+ [gl_cv_func_strstr_linear],
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#ifdef __MVS__
+/* z/OS does not deliver signals while strstr() is running (thanks to
+ restrictions on its LE runtime), which prevents us from limiting the
+ running time of this test. */
+# error "This test does not work properly on z/OS"
+#endif
+#include <signal.h> /* for signal */
+#include <string.h> /* for strstr */
+#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 have quadratic strstr. */
+ 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 (!strstr (haystack, needle))
+ result |= 1;
+ }
+ /* Free allocated memory, in case some sanitizer is watching. */
+ free (haystack);
+ free (needle);
+ return result;
+ ]])],
+ [gl_cv_func_strstr_linear=yes], [gl_cv_func_strstr_linear=no],
+ [dnl Only glibc > 2.12 on processors without SSE 4.2 instructions and
+ dnl cygwin > 1.7.7 are known to have a bug-free strstr that works in
+ dnl linear time.
+ AC_EGREP_CPP([Lucky user],
+ [
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \
+ && !(defined __i386__ || defined __x86_64__) \
+ && !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_strstr_linear="guessing yes"],
+ [gl_cv_func_strstr_linear="$gl_cross_guess_normal"])
+ ])
+ ])
+ case "$gl_cv_func_strstr_linear" in
+ *yes) ;;
+ *)
+ REPLACE_STRSTR=1
+ ;;
+ esac
+ fi
+]) # gl_FUNC_STRSTR
diff --git a/src/grep/m4/strtoimax.m4 b/src/grep/m4/strtoimax.m4
new file mode 100644
index 0000000..d767d57
--- /dev/null
+++ b/src/grep/m4/strtoimax.m4
@@ -0,0 +1,88 @@
+# strtoimax.m4 serial 16
+dnl Copyright (C) 2002-2004, 2006, 2009-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRTOIMAX],
+[
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
+
+ dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+ AC_CHECK_FUNCS_ONCE([strtoimax])
+ AC_CHECK_DECLS_ONCE([strtoimax])
+ if test "$ac_cv_have_decl_strtoimax" != yes; then
+ HAVE_DECL_STRTOIMAX=0
+ fi
+
+ if test "$ac_cv_func_strtoimax" = yes; then
+ HAVE_STRTOIMAX=1
+ dnl On AIX 5.1, strtoimax() fails for values outside the 'int' range.
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether strtoimax works], [gl_cv_func_strtoimax],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <errno.h>
+#include <string.h>
+#include <inttypes.h>
+int main ()
+{
+ if (sizeof (intmax_t) > sizeof (int))
+ {
+ const char *s = "4294967295";
+ char *p;
+ intmax_t res;
+ errno = 0;
+ res = strtoimax (s, &p, 10);
+ if (p != s + strlen (s))
+ return 1;
+ if (errno != 0)
+ return 2;
+ if (res != (intmax_t) 65535 * (intmax_t) 65537)
+ return 3;
+ }
+ else
+ {
+ const char *s = "2147483647";
+ char *p;
+ intmax_t res;
+ errno = 0;
+ res = strtoimax (s, &p, 10);
+ if (p != s + strlen (s))
+ return 1;
+ if (errno != 0)
+ return 2;
+ if (res != 2147483647)
+ return 3;
+ }
+ return 0;
+}
+]])],
+ [gl_cv_func_strtoimax=yes],
+ [gl_cv_func_strtoimax=no],
+ [case "$host_os" in
+ # Guess no on AIX 5.
+ aix5*) gl_cv_func_strtoimax="guessing no" ;;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_strtoimax="guessing yes" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_strtoimax="guessing yes" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_strtoimax" in
+ *no) REPLACE_STRTOIMAX=1 ;;
+ esac
+ else
+ if test "$ac_cv_have_decl_strtoimax" = yes; then
+ # HP-UX 11.11 has "#define strtoimax(...) ..." but no function.
+ REPLACE_STRTOIMAX=1
+ fi
+ HAVE_STRTOIMAX=0
+ fi
+])
+
+# Prerequisites of lib/strtoimax.c.
+AC_DEFUN([gl_PREREQ_STRTOIMAX], [
+ AC_CHECK_DECLS([strtoll])
+])
diff --git a/src/grep/m4/strtoll.m4 b/src/grep/m4/strtoll.m4
new file mode 100644
index 0000000..14455dc
--- /dev/null
+++ b/src/grep/m4/strtoll.m4
@@ -0,0 +1,51 @@
+# strtoll.m4 serial 9
+dnl Copyright (C) 2002, 2004, 2006, 2008-2021 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_STRTOLL],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_CHECK_FUNCS([strtoll])
+ if test $ac_cv_func_strtoll = yes; then
+ AC_CACHE_CHECK([whether strtoll works],
+ [gl_cv_func_strtoll_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdlib.h>]],
+ [[int result = 0;
+ char *term;
+ /* This test fails on Minix and native Windows. */
+ {
+ const char input[] = "0x";
+ (void) strtoll (input, &term, 16);
+ if (term != input + 1)
+ result |= 1;
+ }
+ return result;
+ ]])
+ ],
+ [gl_cv_func_strtoll_works=yes],
+ [gl_cv_func_strtoll_works=no],
+ [case "$host_os" in
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_strtoll_works="guessing no" ;;
+ *) gl_cv_func_strtoll_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_strtoll_works" in
+ *yes) ;;
+ *) REPLACE_STRTOLL=1 ;;
+ esac
+ else
+ HAVE_STRTOLL=0
+ fi
+])
+
+# Prerequisites of lib/strtoll.c.
+AC_DEFUN([gl_PREREQ_STRTOLL], [
+ :
+])
diff --git a/src/grep/m4/strtoull.m4 b/src/grep/m4/strtoull.m4
new file mode 100644
index 0000000..41178cc
--- /dev/null
+++ b/src/grep/m4/strtoull.m4
@@ -0,0 +1,51 @@
+# strtoull.m4 serial 9
+dnl Copyright (C) 2002, 2004, 2006, 2008-2021 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_STRTOULL],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_CHECK_FUNCS([strtoull])
+ if test $ac_cv_func_strtoull = yes; then
+ AC_CACHE_CHECK([whether strtoull works],
+ [gl_cv_func_strtoull_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <stdlib.h>]],
+ [[int result = 0;
+ char *term;
+ /* This test fails on Minix and native Windows. */
+ {
+ const char input[] = "0x";
+ (void) strtoull (input, &term, 16);
+ if (term != input + 1)
+ result |= 1;
+ }
+ return result;
+ ]])
+ ],
+ [gl_cv_func_strtoull_works=yes],
+ [gl_cv_func_strtoull_works=no],
+ [case "$host_os" in
+ # Guess no on native Windows.
+ mingw*) gl_cv_func_strtoull_works="guessing no" ;;
+ *) gl_cv_func_strtoull_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_strtoull_works" in
+ *yes) ;;
+ *) REPLACE_STRTOULL=1 ;;
+ esac
+ else
+ HAVE_STRTOULL=0
+ fi
+])
+
+# Prerequisites of lib/strtoull.c.
+AC_DEFUN([gl_PREREQ_STRTOULL], [
+ :
+])
diff --git a/src/grep/m4/strtoumax.m4 b/src/grep/m4/strtoumax.m4
new file mode 100644
index 0000000..b896bf9
--- /dev/null
+++ b/src/grep/m4/strtoumax.m4
@@ -0,0 +1,27 @@
+# strtoumax.m4 serial 13
+dnl Copyright (C) 2002-2004, 2006, 2009-2021 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_STRTOUMAX],
+[
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
+
+ dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+ AC_CHECK_FUNCS_ONCE([strtoumax])
+ AC_CHECK_DECLS_ONCE([strtoumax])
+ if test "$ac_cv_have_decl_strtoumax" = yes; then
+ if test "$ac_cv_func_strtoumax" != yes; then
+ # HP-UX 11.11 has "#define strtoimax(...) ..." but no function.
+ REPLACE_STRTOUMAX=1
+ fi
+ else
+ HAVE_DECL_STRTOUMAX=0
+ fi
+])
+
+# Prerequisites of lib/strtoumax.c.
+AC_DEFUN([gl_PREREQ_STRTOUMAX], [
+ AC_CHECK_DECLS([strtoull])
+])
diff --git a/src/grep/m4/symlink.m4 b/src/grep/m4/symlink.m4
new file mode 100644
index 0000000..209dece
--- /dev/null
+++ b/src/grep/m4/symlink.m4
@@ -0,0 +1,55 @@
+# serial 9
+# See if we need to provide symlink replacement.
+
+dnl Copyright (C) 2009-2021 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_SYMLINK],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CHECK_FUNCS_ONCE([symlink])
+ dnl The best we can do on mingw is provide a dummy that always fails, so
+ dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1,
+ dnl and Solaris 9, we want to fix a bug with trailing slash handling.
+ if test $ac_cv_func_symlink = no; then
+ HAVE_SYMLINK=0
+ else
+ AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
+ [gl_cv_func_symlink_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <unistd.h>
+ ]],
+ [[int result = 0;
+ if (!symlink ("a", "conftest.link/"))
+ result |= 1;
+ if (symlink ("conftest.f", "conftest.lnk2"))
+ result |= 2;
+ else if (!symlink ("a", "conftest.lnk2/"))
+ result |= 4;
+ return result;
+ ]])],
+ [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
+ [case "$host_os" in
+ # Guess yes on Linux systems.
+ linux-* | linux) gl_cv_func_symlink_works="guessing yes" ;;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_symlink_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_symlink_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.f conftest.link conftest.lnk2])
+ case "$gl_cv_func_symlink_works" in
+ *yes) ;;
+ *)
+ REPLACE_SYMLINK=1
+ ;;
+ esac
+ fi
+])
diff --git a/src/grep/m4/sys_ioctl_h.m4 b/src/grep/m4/sys_ioctl_h.m4
new file mode 100644
index 0000000..cd00410
--- /dev/null
+++ b/src/grep/m4/sys_ioctl_h.m4
@@ -0,0 +1,79 @@
+# sys_ioctl_h.m4 serial 15
+dnl Copyright (C) 2008-2021 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/src/grep/m4/sys_select_h.m4 b/src/grep/m4/sys_select_h.m4
new file mode 100644
index 0000000..2e7d140
--- /dev/null
+++ b/src/grep/m4/sys_select_h.m4
@@ -0,0 +1,110 @@
+# sys_select_h.m4 serial 23
+dnl Copyright (C) 2006-2021 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([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_SYS_SELECT_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_SELECT_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PSELECT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SELECT])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_SELECT_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_SYS_SELECT_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_PSELECT=1; AC_SUBST([HAVE_PSELECT])
+ REPLACE_PSELECT=0; AC_SUBST([REPLACE_PSELECT])
+ REPLACE_SELECT=0; AC_SUBST([REPLACE_SELECT])
+])
diff --git a/src/grep/m4/sys_socket_h.m4 b/src/grep/m4/sys_socket_h.m4
new file mode 100644
index 0000000..5676a0d
--- /dev/null
+++ b/src/grep/m4/sys_socket_h.m4
@@ -0,0 +1,205 @@
+# sys_socket_h.m4 serial 28
+dnl Copyright (C) 2005-2021 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Simon Josefsson.
+
+AC_DEFUN_ONCE([gl_SYS_SOCKET_H],
+[
+ AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have
+ dnl old-style declarations (with return type 'int' instead of 'ssize_t')
+ dnl unless _POSIX_PII_SOCKET is defined.
+ case "$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
+
+ 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
+ SYS_SOCKET_H='sys/socket.h'
+ 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
+ SYS_SOCKET_H='sys/socket.h'
+ 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/src/grep/m4/sys_stat_h.m4 b/src/grep/m4/sys_stat_h.m4
new file mode 100644
index 0000000..ac91d42
--- /dev/null
+++ b/src/grep/m4/sys_stat_h.m4
@@ -0,0 +1,127 @@
+# sys_stat_h.m4 serial 41 -*- Autoconf -*-
+dnl Copyright (C) 2006-2021 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>
+ ]], [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_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_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/src/grep/m4/sys_time_h.m4 b/src/grep/m4/sys_time_h.m4
new file mode 100644
index 0000000..c425a96
--- /dev/null
+++ b/src/grep/m4/sys_time_h.m4
@@ -0,0 +1,120 @@
+# Configure a replacement for <sys/time.h>.
+# serial 12
+
+# Copyright (C) 2007, 2009-2021 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/src/grep/m4/sys_types_h.m4 b/src/grep/m4/sys_types_h.m4
new file mode 100644
index 0000000..6dd6fee
--- /dev/null
+++ b/src/grep/m4/sys_types_h.m4
@@ -0,0 +1,70 @@
+# sys_types_h.m4 serial 13
+dnl Copyright (C) 2011-2021 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/src/grep/m4/sys_uio_h.m4 b/src/grep/m4/sys_uio_h.m4
new file mode 100644
index 0000000..fa176e0
--- /dev/null
+++ b/src/grep/m4/sys_uio_h.m4
@@ -0,0 +1,46 @@
+# sys_uio_h.m4 serial 3
+dnl Copyright (C) 2011-2021 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/src/grep/m4/thread.m4 b/src/grep/m4/thread.m4
new file mode 100644
index 0000000..8ec9cc3
--- /dev/null
+++ b/src/grep/m4/thread.m4
@@ -0,0 +1,17 @@
+# thread.m4 serial 3
+dnl Copyright (C) 2008-2021 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_THREAD],
+[
+ AC_REQUIRE([gl_THREADLIB])
+
+ if test $gl_threads_api = posix; then
+ gl_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBMULTITHREAD"
+ AC_CHECK_FUNCS([pthread_atfork])
+ LIBS="$gl_save_LIBS"
+ fi
+])
diff --git a/src/grep/m4/threadlib.m4 b/src/grep/m4/threadlib.m4
new file mode 100644
index 0000000..37b797c
--- /dev/null
+++ b/src/grep/m4/threadlib.m4
@@ -0,0 +1,654 @@
+# threadlib.m4 serial 31
+dnl Copyright (C) 2005-2021 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],
+ [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
+ 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 LIB_SCHED_YIELD 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
+ solaris | solaris2.[1-9] | solaris2.[1-9].* | hpux*)
+ 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 $gl_pthread_api = yes; then
+ AC_DEFINE([HAVE_PTHREAD_API], [1],
+ [Define if you have the <pthread.h> header and the POSIX threads API.])
+ fi
+
+ dnl On some systems, sched_yield is in librt, rather than in libpthread.
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <sched.h>]],
+ [[sched_yield ();]])],
+ [LIB_SCHED_YIELD=
+ ],
+ [dnl Solaris 7...10 has sched_yield in librt, not in libpthread or libc.
+ AC_CHECK_LIB([rt], [sched_yield], [LIB_SCHED_YIELD=-lrt],
+ [dnl Solaris 2.5.1, 2.6 has sched_yield in libposix4, not librt.
+ AC_CHECK_LIB([posix4], [sched_yield], [LIB_SCHED_YIELD=-lposix4])])
+ ])
+ AC_SUBST([LIB_SCHED_YIELD])
+
+ gl_pthreadlib_body_done=done
+ fi
+])
+
+AC_DEFUN([gl_PTHREADLIB],
+[
+ AC_REQUIRE([gl_ANYTHREADLIB_EARLY])
+ gl_PTHREADLIB_BODY
+])
+
+dnl ============================================================================
+dnl Macros for the ISO C API
+
+dnl gl_STDTHREADLIB
+dnl ---------------
+dnl Tests for the libraries needs for using the ISO C threads API.
+dnl Sets the variable LIBSTDTHREAD to the linker options for use in a Makefile.
+dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for
+dnl multithread-safe programs.
+dnl Defines the C macro HAVE_THREADS_H if (at least parts of) the ISO C threads
+dnl API is available.
+
+dnl The guts of gl_STDTHREADLIB. Needs to be expanded only once.
+
+AC_DEFUN([gl_STDTHREADLIB_BODY],
+[
+ AC_REQUIRE([gl_ANYTHREADLIB_EARLY])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ if test -z "$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.
+ AC_CHECK_FUNCS([thrd_create])
+ 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 $LIB_SCHED_YIELD"
+ fi
+ ;;
+ esac
+ AC_SUBST([LIBSTDTHREAD])
+
+ AC_MSG_CHECKING([whether ISO C threads API is available])
+ AC_MSG_RESULT([$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([$0], [gl_ARGP])dnl
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ dnl _GNU_SOURCE is needed for pthread_rwlock_t on glibc systems.
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+ dnl Check for multithreading.
+ m4_ifdef([gl_THREADLIB_DEFAULT_NO],
+ [m4_divert_text([DEFAULTS], [gl_use_threads_default=no])],
+ [m4_divert_text([DEFAULTS], [gl_use_threads_default=])])
+ m4_divert_text([DEFAULTS], [gl_use_winpthreads_default=])
+ AC_ARG_ENABLE([threads],
+AS_HELP_STRING([--enable-threads={isoc|posix|isoc+posix|windows}], [specify multithreading API])m4_ifdef([gl_THREADLIB_DEFAULT_NO], [], [
+AS_HELP_STRING([--disable-threads], [build without multithread safety])]),
+ [gl_use_threads=$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'.
+
+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/src/grep/m4/time_h.m4 b/src/grep/m4/time_h.m4
new file mode 100644
index 0000000..b57474b
--- /dev/null
+++ b/src/grep/m4/time_h.m4
@@ -0,0 +1,175 @@
+# Configure a more-standard replacement for <time.h>.
+
+# Copyright (C) 2000-2001, 2003-2007, 2009-2021 Free Software Foundation, Inc.
+
+# serial 18
+
+# 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])
+
+ 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_TIMEGM])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMESPEC_GET])
+ 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])
+ 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_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM])
+ 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/src/grep/m4/unistd-safer.m4 b/src/grep/m4/unistd-safer.m4
new file mode 100644
index 0000000..c205446
--- /dev/null
+++ b/src/grep/m4/unistd-safer.m4
@@ -0,0 +1,10 @@
+#serial 9
+dnl Copyright (C) 2002, 2005-2006, 2009-2021 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/src/grep/m4/unistd_h.m4 b/src/grep/m4/unistd_h.m4
new file mode 100644
index 0000000..0ce4ea4
--- /dev/null
+++ b/src/grep/m4/unistd_h.m4
@@ -0,0 +1,267 @@
+# unistd_h.m4 serial 89
+dnl Copyright (C) 2006-2021 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_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_DUP=0; AC_SUBST([REPLACE_DUP])
+ REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2])
+ 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_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_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_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_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_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/src/grep/m4/unlocked-io.m4 b/src/grep/m4/unlocked-io.m4
new file mode 100644
index 0000000..b689020
--- /dev/null
+++ b/src/grep/m4/unlocked-io.m4
@@ -0,0 +1,36 @@
+# unlocked-io.m4 serial 16
+
+# Copyright (C) 1998-2006, 2009-2021 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.
+dnl
+dnl See if the glibc *_unlocked I/O macros or functions are available.
+dnl Use only those *_unlocked macros or functions that are declared
+dnl (because some of them were declared in Solaris 2.5.1 but were removed
+dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run
+dnl on Solaris 2.6).
+
+AC_DEFUN([gl_FUNC_GLIBC_UNLOCKED_IO],
+[
+ dnl Persuade glibc and Solaris <stdio.h> to declare
+ dnl fgets_unlocked(), fputs_unlocked() etc.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ 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])
+])
diff --git a/src/grep/m4/vasnprintf.m4 b/src/grep/m4/vasnprintf.m4
new file mode 100644
index 0000000..483bba9
--- /dev/null
+++ b/src/grep/m4/vasnprintf.m4
@@ -0,0 +1,298 @@
+# vasnprintf.m4 serial 38
+dnl Copyright (C) 2002-2004, 2006-2021 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 $ac_cv_func_vasnprintf = yes; then
+ AC_DEFINE([REPLACE_VASNPRINTF], [1],
+ [Define if vasnprintf exists but is overridden by gnulib.])
+ fi
+ gl_PREREQ_PRINTF_ARGS
+ gl_PREREQ_PRINTF_PARSE
+ gl_PREREQ_VASNPRINTF
+ gl_PREREQ_ASNPRINTF
+])
+
+# Prerequisites of lib/printf-args.h, lib/printf-args.c.
+AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
+[
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+ AC_REQUIRE([gt_TYPE_WINT_T])
+])
+
+# Prerequisites of lib/printf-parse.h, lib/printf-parse.c.
+AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
+[
+ AC_REQUIRE([gl_FEATURES_H])
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+ AC_REQUIRE([gt_TYPE_WINT_T])
+ AC_REQUIRE([AC_TYPE_SIZE_T])
+ AC_CHECK_TYPE([ptrdiff_t], ,
+ [AC_DEFINE([ptrdiff_t], [long],
+ [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
+ ])
+ AC_REQUIRE([gt_AC_TYPE_INTMAX_T])
+])
+
+# Prerequisites of lib/vasnprintf.c.
+AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF],
+[
+ AC_REQUIRE([AC_FUNC_ALLOCA])
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+ AC_REQUIRE([gt_TYPE_WINT_T])
+ AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])
+ dnl Use the _snprintf function only if it is declared (because on NetBSD it
+ dnl is defined as a weak alias of snprintf; we prefer to use the latter).
+ AC_CHECK_DECLS([_snprintf], , , [[#include <stdio.h>]])
+ dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization
+ dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE.
+ AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION])
+ dnl We can avoid a lot of code by assuming that snprintf's return value
+ dnl conforms to ISO C99. So check that.
+ AC_REQUIRE([gl_SNPRINTF_RETVAL_C99])
+ case "$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 "$gl_cv_func_snprintf_truncation_c99" in
+ *yes)
+ AC_DEFINE([HAVE_SNPRINTF_TRUNCATION_C99], [1],
+ [Define if the string produced by the snprintf function is always NUL
+ terminated.])
+ ;;
+ esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting 'long double'
+# arguments.
+AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE],
+[
+ AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
+ case "$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.])
+ AC_CHECK_FUNCS([nl_langinfo])
+ ;;
+ 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 ' 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_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_F
+ gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
+ gl_PREREQ_VASNPRINTF_FLAG_GROUPING
+ gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
+ gl_PREREQ_VASNPRINTF_FLAG_ZERO
+ gl_PREREQ_VASNPRINTF_PRECISION
+ gl_PREREQ_VASNPRINTF_ENOMEM
+])
+
+# Prerequisites of lib/asnprintf.c.
+AC_DEFUN([gl_PREREQ_ASNPRINTF],
+[
+])
diff --git a/src/grep/m4/version-etc.m4 b/src/grep/m4/version-etc.m4
new file mode 100644
index 0000000..ca7fd24
--- /dev/null
+++ b/src/grep/m4/version-etc.m4
@@ -0,0 +1,33 @@
+# version-etc.m4 serial 1
+# Copyright (C) 2009-2021 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 $1 - configure flag and define name
+dnl $2 - human readable description
+m4_define([gl_VERSION_ETC_FLAG],
+[dnl
+ AC_ARG_WITH([$1], [AS_HELP_STRING([--with-$1], [$2])],
+ [dnl
+ case $withval in
+ yes|no) ;;
+ *) AC_DEFINE_UNQUOTED(AS_TR_CPP([PACKAGE_$1]), ["$withval"], [$2]) ;;
+ esac
+ ])
+])
+
+AC_DEFUN([gl_VERSION_ETC],
+[dnl
+ gl_VERSION_ETC_FLAG([packager],
+ [String identifying the packager of this software])
+ gl_VERSION_ETC_FLAG([packager-version],
+ [Packager-specific version information])
+ gl_VERSION_ETC_FLAG([packager-bug-reports],
+ [Packager info for bug reports (URL/e-mail/...)])
+ if test "X$with_packager" = "X" && \
+ test "X$with_packager_version$with_packager_bug_reports" != "X"
+ then
+ AC_MSG_ERROR([The --with-packager-{bug-reports,version} options require --with-packager])
+ fi
+])
diff --git a/src/grep/m4/visibility.m4 b/src/grep/m4/visibility.m4
new file mode 100644
index 0000000..d161bd7
--- /dev/null
+++ b/src/grep/m4/visibility.m4
@@ -0,0 +1,82 @@
+# visibility.m4 serial 8
+dnl Copyright (C) 2005, 2008, 2010-2021 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/src/grep/m4/warn-on-use.m4 b/src/grep/m4/warn-on-use.m4
new file mode 100644
index 0000000..04edfe8
--- /dev/null
+++ b/src/grep/m4/warn-on-use.m4
@@ -0,0 +1,49 @@
+# warn-on-use.m4 serial 9
+dnl Copyright (C) 2010-2021 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
+ AC_CACHE_CHECK([whether $gl_func is declared without a macro],
+ [gl_Symbol],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1],
+[[#undef $gl_func
+ (void) $gl_func;]])],
+ [AS_VAR_SET([gl_Symbol], [yes])], [AS_VAR_SET([gl_Symbol], [no])])])
+ AS_VAR_IF([gl_Symbol], [yes],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1])
+ dnl shortcut - if the raw declaration exists, then set a cache
+ dnl variable to allow skipping any later AC_CHECK_DECL efforts
+ eval ac_cv_have_decl_$gl_func=yes])
+ AS_VAR_POPDEF([gl_Symbol])dnl
+ done
+ ])
+])
diff --git a/src/grep/m4/warnings.m4 b/src/grep/m4/warnings.m4
new file mode 100644
index 0000000..9e24d89
--- /dev/null
+++ b/src/grep/m4/warnings.m4
@@ -0,0 +1,110 @@
+# warnings.m4 serial 16
+dnl Copyright (C) 2008-2021 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
+
+# gl_AS_VAR_APPEND(VAR, VALUE)
+# ----------------------------
+# Provide the functionality of AS_VAR_APPEND if Autoconf does not have it.
+m4_ifdef([AS_VAR_APPEND],
+[m4_copy([AS_VAR_APPEND], [gl_AS_VAR_APPEND])],
+[m4_define([gl_AS_VAR_APPEND],
+[AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])])
+
+
+# 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"
+ gl_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 parameter to WARN_CFLAGS/WARN_CXXFLAGS if the compiler supports it
+# when compiling PROGRAM. For example, gl_WARN_ADD([-Wparentheses]).
+#
+# If VARIABLE is a variable name, AC_SUBST it.
+#
+# The effects of this macro depend on the current language (_AC_LANG).
+AC_DEFUN([gl_WARN_ADD],
+[AC_REQUIRE([gl_UNKNOWN_WARNINGS_ARE_ERRORS(]_AC_LANG[)])
+gl_COMPILER_OPTION_IF([$1],
+ [gl_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
+])
+
+# Local Variables:
+# mode: autoconf
+# End:
diff --git a/src/grep/m4/wchar_h.m4 b/src/grep/m4/wchar_h.m4
new file mode 100644
index 0000000..818b319
--- /dev/null
+++ b/src/grep/m4/wchar_h.m4
@@ -0,0 +1,255 @@
+dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
+
+dnl Copyright (C) 2007-2021 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 53
+
+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])
+ 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_WCSTOK=0; AC_SUBST([REPLACE_WCSTOK])
+])
diff --git a/src/grep/m4/wchar_t.m4 b/src/grep/m4/wchar_t.m4
new file mode 100644
index 0000000..34db10e
--- /dev/null
+++ b/src/grep/m4/wchar_t.m4
@@ -0,0 +1,24 @@
+# wchar_t.m4 serial 4 (gettext-0.18.2)
+dnl Copyright (C) 2002-2003, 2008-2021 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/src/grep/m4/wcrtomb.m4 b/src/grep/m4/wcrtomb.m4
new file mode 100644
index 0000000..cd96f11
--- /dev/null
+++ b/src/grep/m4/wcrtomb.m4
@@ -0,0 +1,146 @@
+# wcrtomb.m4 serial 17
+dnl Copyright (C) 2008-2021 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 $LOCALE_ZH_CN != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <string.h>
+#include <wchar.h>
+#include <stdlib.h>
+int main ()
+{
+ int result = 0;
+ if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
+ {
+ if (wcrtomb (NULL, 0, NULL) != 1)
+ result |= 1;
+ }
+ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
+ {
+ if (wcrtomb (NULL, 0, NULL) != 1)
+ result |= 2;
+ {
+ wchar_t wc = (wchar_t) 0xBADFACE;
+ if (mbtowc (&wc, "\303\274", 2) == 2)
+ if (wcrtomb (NULL, wc, NULL) != 1)
+ result |= 2;
+ }
+ }
+ if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
+ {
+ if (wcrtomb (NULL, 0, NULL) != 1)
+ result |= 4;
+ }
+ if (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/src/grep/m4/wctob.m4 b/src/grep/m4/wctob.m4
new file mode 100644
index 0000000..159b609
--- /dev/null
+++ b/src/grep/m4/wctob.m4
@@ -0,0 +1,109 @@
+# wctob.m4 serial 13
+dnl Copyright (C) 2008-2021 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_WCTOB],
+[
+ AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+
+ AC_CHECK_FUNCS_ONCE([wctob])
+ if test $ac_cv_func_wctob = no; then
+ HAVE_WCTOB=0
+ HAVE_DECL_WCTOB=0
+ else
+ HAVE_WCTOB=1
+
+ dnl Solaris 9 has the wctob() function but it does not work.
+ dnl Cygwin 1.7.2 has the wctob() function but it clobbers caller-owned
+ dnl registers, see <https://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gt_LOCALE_FR])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether wctob works],
+ [gl_cv_func_wctob_works],
+ [
+ dnl Initial guess, used when cross-compiling or when no suitable locale
+ dnl is present.
+changequote(,)dnl
+ case "$host_os" in
+ # Guess no on Solaris <= 9 and Cygwin.
+ solaris2.[1-9] | solaris2.[1-9].* | cygwin*)
+ gl_cv_func_wctob_works="guessing no" ;;
+ # Guess no on native Windows.
+ mingw*)
+ gl_cv_func_wctob_works="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_wctob_works="guessing yes" ;;
+ esac
+changequote([,])dnl
+ case "$host_os" in
+ cygwin*)
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <wchar.h>
+
+register long global __asm__ ("%ebx");
+
+int main ()
+{
+ setlocale (LC_ALL, "en_US.UTF-8");
+
+ global = 0x12345678;
+ if (wctob (0x00FC) != -1)
+ return 1;
+ if (global != 0x12345678)
+ return 2;
+ return 0;
+}]])],
+ [:],
+ [gl_cv_func_wctob_works=no],
+ [:])
+ ;;
+ esac
+ if test "$gl_cv_func_wctob_works" != no && test $LOCALE_FR != none; then
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <stdlib.h>
+#include <wchar.h>
+int main ()
+{
+ if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
+ {
+ wchar_t wc;
+
+ if (mbtowc (&wc, "\374", 1) == 1)
+ if (wctob (wc) != (unsigned char) '\374')
+ return 1;
+ }
+ return 0;
+}]])],
+ [gl_cv_func_wctob_works=yes],
+ [gl_cv_func_wctob_works=no],
+ [:])
+ fi
+ ])
+ case "$gl_cv_func_wctob_works" in
+ *yes) ;;
+ *) REPLACE_WCTOB=1 ;;
+ esac
+ if test $REPLACE_WCTOB = 0; then
+
+ dnl IRIX 6.5 has the wctob() function but does not declare it.
+ AC_CHECK_DECLS([wctob], [], [], [[
+ #include <wchar.h>
+ ]])
+ if test $ac_cv_have_decl_wctob != yes; then
+ HAVE_DECL_WCTOB=0
+ fi
+ fi
+ fi
+])
+
+# Prerequisites of lib/wctob.c.
+AC_DEFUN([gl_PREREQ_WCTOB], [
+ :
+])
diff --git a/src/grep/m4/wctomb.m4 b/src/grep/m4/wctomb.m4
new file mode 100644
index 0000000..2da8b26
--- /dev/null
+++ b/src/grep/m4/wctomb.m4
@@ -0,0 +1,19 @@
+# wctomb.m4 serial 2
+dnl Copyright (C) 2011-2021 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_WCTOMB],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+
+ if false; then
+ REPLACE_WCTOMB=1
+ fi
+])
+
+# Prerequisites of lib/wctomb.c.
+AC_DEFUN([gl_PREREQ_WCTOMB], [
+ :
+])
diff --git a/src/grep/m4/wctype_h.m4 b/src/grep/m4/wctype_h.m4
new file mode 100644
index 0000000..7d74212
--- /dev/null
+++ b/src/grep/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) 2006-2021 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/src/grep/m4/wcwidth.m4 b/src/grep/m4/wcwidth.m4
new file mode 100644
index 0000000..2ac2a51
--- /dev/null
+++ b/src/grep/m4/wcwidth.m4
@@ -0,0 +1,115 @@
+# wcwidth.m4 serial 34
+dnl Copyright (C) 2006-2021 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_WCWIDTH],
+[
+ AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+ dnl Persuade glibc <wchar.h> to declare wcwidth().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([gt_TYPE_WCHAR_T])
+ AC_REQUIRE([gt_TYPE_WINT_T])
+
+ AC_CHECK_HEADERS_ONCE([wchar.h])
+ AC_CHECK_FUNCS_ONCE([wcwidth])
+
+ AC_CHECK_DECLS([wcwidth], [], [], [[
+ #include <wchar.h>
+ ]])
+ if test $ac_cv_have_decl_wcwidth != yes; then
+ HAVE_DECL_WCWIDTH=0
+ fi
+
+ if test $ac_cv_func_wcwidth != yes; then
+ AC_CACHE_CHECK([whether wcwidth is a macro],
+ [gl_cv_func_wcwidth_macro],
+ [AC_EGREP_CPP([wchar_header_defines_wcwidth], [
+#include <wchar.h>
+#ifdef wcwidth
+ wchar_header_defines_wcwidth
+#endif],
+ [gl_cv_func_wcwidth_macro=yes],
+ [gl_cv_func_wcwidth_macro=no])
+ ])
+ fi
+
+ if test $ac_cv_func_wcwidth = yes || test $gl_cv_func_wcwidth_macro = yes; then
+ HAVE_WCWIDTH=1
+ dnl On Mac OS X 10.3, wcwidth(0x0301) (COMBINING ACUTE ACCENT) returns 1.
+ dnl On NetBSD 9.0, OpenBSD 5.0, MidnightBSD 1.1,
+ dnl wcwidth(0x05B0) (HEBREW POINT SHEVA) returns 1.
+ dnl On NetBSD 9.0, MidnightBSD 1.1, OSF/1 5.1,
+ dnl wcwidth(0x200B) (ZERO WIDTH SPACE) returns 1.
+ dnl On OpenBSD 5.8, wcwidth(0xFF1A) (FULLWIDTH COLON) returns 0.
+ dnl This leads to bugs in 'ls' (coreutils).
+ dnl On Solaris 11.4, wcwidth(0x2202) (PARTIAL DIFFERENTIAL) returns 2,
+ dnl even in Western locales.
+ AC_CACHE_CHECK([whether wcwidth works reasonably in UTF-8 locales],
+ [gl_cv_func_wcwidth_works],
+ [
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <locale.h>
+#include <wchar.h>
+#if !HAVE_DECL_WCWIDTH
+extern
+# ifdef __cplusplus
+"C"
+# endif
+int wcwidth (int);
+#endif
+int main ()
+{
+ int result = 0;
+ if (setlocale (LC_ALL, "en_US.UTF-8") != NULL)
+ {
+ if (wcwidth (0x0301) > 0)
+ result |= 1;
+ if (wcwidth (0x05B0) > 0)
+ result |= 2;
+ if (wcwidth (0x200B) > 0)
+ result |= 4;
+ if (wcwidth (0xFF1A) == 0)
+ result |= 8;
+ if (wcwidth (0x2202) > 1)
+ result |= 16;
+ }
+ return result;
+}]])],
+ [gl_cv_func_wcwidth_works=yes],
+ [gl_cv_func_wcwidth_works=no],
+ [
+changequote(,)dnl
+ case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_wcwidth_works="guessing yes";;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_wcwidth_works="guessing yes";;
+ # Guess yes on AIX 7 systems.
+ aix[7-9]*) gl_cv_func_wcwidth_works="guessing yes";;
+ *) gl_cv_func_wcwidth_works="$gl_cross_guess_normal";;
+ esac
+changequote([,])dnl
+ ])
+ ])
+ case "$gl_cv_func_wcwidth_works" in
+ *yes) ;;
+ *no) REPLACE_WCWIDTH=1 ;;
+ esac
+ else
+ HAVE_WCWIDTH=0
+ fi
+ dnl We don't substitute HAVE_WCWIDTH. We assume that if the system does not
+ dnl have the wcwidth function, then it does not declare it.
+])
+
+# Prerequisites of lib/wcwidth.c.
+AC_DEFUN([gl_PREREQ_WCWIDTH], [
+ AC_REQUIRE([AC_C_INLINE])
+ :
+])
diff --git a/src/grep/m4/windows-stat-inodes.m4 b/src/grep/m4/windows-stat-inodes.m4
new file mode 100644
index 0000000..01a8040
--- /dev/null
+++ b/src/grep/m4/windows-stat-inodes.m4
@@ -0,0 +1,19 @@
+# windows-stat-inodes.m4 serial 1
+dnl Copyright (C) 2017-2021 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 Enable inode identification in 'struct stat' on native Windows platforms.
+dnl Set WINDOWS_STAT_INODES to
+dnl - 0 -> keep the default (dev_t = 32-bit, ino_t = 16-bit),
+dnl - 1 -> override types normally (dev_t = 32-bit, ino_t = 64-bit),
+dnl - 2 -> override types in an extended way (dev_t = 64-bit, ino_t = 128-bit).
+AC_DEFUN([gl_WINDOWS_STAT_INODES],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*) WINDOWS_STAT_INODES=1 ;;
+ *) WINDOWS_STAT_INODES=0 ;;
+ esac
+])
diff --git a/src/grep/m4/wint_t.m4 b/src/grep/m4/wint_t.m4
new file mode 100644
index 0000000..a49c508
--- /dev/null
+++ b/src/grep/m4/wint_t.m4
@@ -0,0 +1,57 @@
+# wint_t.m4 serial 11
+dnl Copyright (C) 2003, 2007-2021 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/src/grep/m4/wmemchr.m4 b/src/grep/m4/wmemchr.m4
new file mode 100644
index 0000000..a5b4eb7
--- /dev/null
+++ b/src/grep/m4/wmemchr.m4
@@ -0,0 +1,25 @@
+# wmemchr.m4 serial 5
+dnl Copyright (C) 2011-2021 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/src/grep/m4/wmempcpy.m4 b/src/grep/m4/wmempcpy.m4
new file mode 100644
index 0000000..9d774ae
--- /dev/null
+++ b/src/grep/m4/wmempcpy.m4
@@ -0,0 +1,21 @@
+# wmempcpy.m4 serial 1
+dnl Copyright (C) 2020-2021 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])
+
+ AC_CHECK_FUNCS_ONCE([wmempcpy])
+ if test $ac_cv_func_wmempcpy = no; then
+ HAVE_WMEMPCPY=0
+ fi
+])
diff --git a/src/grep/m4/xalloc.m4 b/src/grep/m4/xalloc.m4
new file mode 100644
index 0000000..8fabf1c
--- /dev/null
+++ b/src/grep/m4/xalloc.m4
@@ -0,0 +1,7 @@
+# xalloc.m4 serial 18
+dnl Copyright (C) 2002-2006, 2009-2021 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/src/grep/m4/xsize.m4 b/src/grep/m4/xsize.m4
new file mode 100644
index 0000000..64e8a4f
--- /dev/null
+++ b/src/grep/m4/xsize.m4
@@ -0,0 +1,12 @@
+# xsize.m4 serial 5
+dnl Copyright (C) 2003-2004, 2008-2021 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/src/grep/m4/xstrtol.m4 b/src/grep/m4/xstrtol.m4
new file mode 100644
index 0000000..e6cdef5
--- /dev/null
+++ b/src/grep/m4/xstrtol.m4
@@ -0,0 +1,10 @@
+#serial 11
+dnl Copyright (C) 2002-2007, 2009-2021 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_XSTRTOL],
+[
+ :
+])
diff --git a/src/grep/m4/year2038.m4 b/src/grep/m4/year2038.m4
new file mode 100644
index 0000000..da0f8d7
--- /dev/null
+++ b/src/grep/m4/year2038.m4
@@ -0,0 +1,124 @@
+# year2038.m4 serial 7
+dnl Copyright (C) 2017-2021 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 Attempt to ensure that 'time_t' can go past the year 2038 and that
+dnl the functions 'time', 'stat', etc. work with post-2038 timestamps.
+
+AC_DEFUN([gl_YEAR2038_EARLY],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ case "$host_os" in
+ mingw*)
+ AC_DEFINE([__MINGW_USE_VC2005_COMPAT], [1],
+ [For 64-bit time_t on 32-bit mingw.])
+ ;;
+ esac
+])
+
+# gl_YEAR2038_TEST_INCLUDES
+# -------------------------
+AC_DEFUN([gl_YEAR2038_TEST_INCLUDES],
+[[
+ #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];
+]])
+
+# gl_YEAR2038_BODY(REQUIRE-YEAR2038-SAFE)
+-----------------------------------------
+AC_DEFUN([gl_YEAR2038_BODY],
+[
+ AC_ARG_ENABLE([year2038],
+ [ --disable-year2038 omit support for timestamps past the year 2038])
+ AS_IF([test "$enable_year2038" != no],
+ [
+ dnl On many systems, time_t is already a 64-bit type.
+ dnl On those systems where time_t is still 32-bit, it requires kernel
+ dnl and libc support to make it 64-bit. For glibc 2.34 and later on Linux,
+ dnl defining _TIME_BITS=64 and _FILE_OFFSET_BITS=64 is needed on x86 and ARM.
+ dnl
+ dnl On native Windows, the system include files define types __time32_t
+ dnl and __time64_t. By default, time_t is an alias of
+ dnl - __time32_t on 32-bit mingw,
+ dnl - __time64_t on 64-bit mingw and on MSVC (since MSVC 8).
+ dnl But when compiling with -D__MINGW_USE_VC2005_COMPAT, time_t is an
+ dnl alias of __time64_t.
+ dnl And when compiling with -D_USE_32BIT_TIME_T, time_t is an alias of
+ dnl __time32_t.
+ AC_CACHE_CHECK([for time_t past the year 2038], [gl_cv_type_time_t_y2038],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([gl_YEAR2038_TEST_INCLUDES])],
+ [gl_cv_type_time_t_y2038=yes], [gl_cv_type_time_t_y2038=no])
+ ])
+ if test "$gl_cv_type_time_t_y2038" = no; then
+ AC_CACHE_CHECK([for 64-bit time_t with _TIME_BITS=64],
+ [gl_cv_type_time_t_bits_macro],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE([[#define _TIME_BITS 64
+ #define _FILE_OFFSET_BITS 64
+ ]gl_YEAR2038_TEST_INCLUDES])],
+ [gl_cv_type_time_t_bits_macro=yes],
+ [gl_cv_type_time_t_bits_macro=no])
+ ])
+ if test "$gl_cv_type_time_t_bits_macro" = yes; then
+ AC_DEFINE([_TIME_BITS], [64],
+ [Number of bits in a timestamp, on hosts where this is settable.])
+ dnl AC_SYS_LARGFILE also defines this; it's OK if we do too.
+ AC_DEFINE([_FILE_OFFSET_BITS], [64],
+ [Number of bits in a file offset, on hosts where this is settable.])
+ gl_cv_type_time_t_y2038=yes
+ fi
+ fi
+ if test $gl_cv_type_time_t_y2038 = no; then
+ AC_COMPILE_IFELSE(
+ [AC_LANG_SOURCE(
+ [[#ifdef _USE_32BIT_TIME_T
+ int ok;
+ #else
+ error fail
+ #endif
+ ]])],
+ [AC_MSG_FAILURE(
+ [The 'time_t' type stops working after January 2038.
+ Remove _USE_32BIT_TIME_T from the compiler flags.])],
+ [# If not cross-compiling and $1 says we should check,
+ # and 'touch' works with a large timestamp, then evidently wider time_t
+ # is desired and supported, so fail and ask the builder to fix the
+ # problem. Otherwise, just warn the builder.
+ m4_ifval([$1],
+ [if test $cross_compiling = no \
+ && TZ=UTC0 touch -t 210602070628.15 conftest.time 2>/dev/null; then
+ case `TZ=UTC0 LC_ALL=C ls -l conftest.time 2>/dev/null` in
+ *'Feb 7 2106'* | *'Feb 7 17:10'*)
+ AC_MSG_FAILURE(
+ [The 'time_t' type stops working after January 2038,
+ and your system appears to support a wider 'time_t'.
+ Try configuring with 'CC="${CC} -m64"'.
+ To build with a 32-bit time_t anyway (not recommended),
+ configure with '--disable-year2038'.]);;
+ esac
+ rm -f conftest.time
+ fi])
+ if test "$gl_warned_about_y2038" != yes; then
+ AC_MSG_WARN(
+ [The 'time_t' type stops working after January 2038,
+ and this package needs a wider 'time_t' type
+ if there is any way to access timestamps after that.
+ Configure with 'CC="${CC} -m64"' perhaps?])
+ gl_warned_about_y2038=yes
+ fi
+ ])
+ fi])
+])
+
+AC_DEFUN([gl_YEAR2038],
+[
+ gl_YEAR2038_BODY([require-year2038-safe])
+])
diff --git a/src/grep/m4/zzgnulib.m4 b/src/grep/m4/zzgnulib.m4
new file mode 100644
index 0000000..b953384
--- /dev/null
+++ b/src/grep/m4/zzgnulib.m4
@@ -0,0 +1,23 @@
+# zzgnulib.m4 serial 1
+dnl Copyright (C) 2020-2021 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])