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Diffstat (limited to 'm4/jm-macros.m4')
| -rw-r--r-- | m4/jm-macros.m4 | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4 new file mode 100644 index 0000000..7a11340 --- /dev/null +++ b/m4/jm-macros.m4 @@ -0,0 +1,253 @@ +#serial 114 -*- autoconf -*- + +dnl Misc type-related macros for coreutils. + +# Copyright (C) 1998-2022 Free Software Foundation, Inc. + +# This program 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 program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# Written by Jim Meyering. + +AC_DEFUN([coreutils_MACROS], +[ + AM_MISSING_PROG(HELP2MAN, help2man) + AC_SUBST([MAN]) + + gl_CHECK_ALL_TYPES + + AC_REQUIRE([gl_CHECK_DECLS]) + + AC_REQUIRE([gl_PREREQ]) + + AC_REQUIRE([AC_FUNC_FSEEKO]) + + # By default, argmatch should fail calling usage (EXIT_FAILURE). + AC_DEFINE([ARGMATCH_DIE], [usage (EXIT_FAILURE)], + [Define to the function xargmatch calls on failures.]) + AC_DEFINE([ARGMATCH_DIE_DECL], [void usage (int _e)], + [Define to the declaration of the xargmatch failure function.]) + + # Ensure VLAs are not used. + # Note -Wvla is implicitly added by gl_MANYWARN_ALL_GCC + AC_DEFINE([GNULIB_NO_VLA], [1], [Define to 1 to disable use of VLAs]) + + # used by shred + AC_CHECK_FUNCS_ONCE([directio]) + + coreutils_saved_libs=$LIBS + LIBS="$LIBS $LIB_SELINUX" + # Used by selinux.c. + AC_CHECK_FUNCS([mode_to_security_class], [], []) + LIBS=$coreutils_saved_libs + + # Used by sort.c. + AC_CHECK_FUNCS_ONCE([nl_langinfo]) + # Used by timeout.c + AC_CHECK_FUNCS_ONCE([setitimer setrlimit prctl]) + + # Used by tail.c. + AC_CHECK_FUNCS([inotify_init], + [AC_DEFINE([HAVE_INOTIFY], [1], + [Define to 1 if you have usable inotify support.])]) + + AC_CHECK_FUNCS_ONCE([ + endgrent + endpwent + fallocate + fchown + fchmod + ftruncate + iswspace + mkfifo + mbrlen + setgroups + sethostname + siginterrupt + sync + syncfs + sysctl + sysinfo + tcgetpgrp + ]) + + # These checks are for Interix, to avoid its getgr* functions, in favor + # of these replacements. The replacement functions are much more efficient + # because they do not query the domain controller for user information + # when it is not needed. + AC_CHECK_FUNCS_ONCE([ + getgrgid_nomembers + getgrnam_nomembers + getgrent_nomembers + ]) + + dnl This can't use AC_REQUIRE; I'm not quite sure why. + cu_PREREQ_STAT_PROG + + # for dd.c and shred.c + # + # Use fdatasync only if declared. On MacOS X 10.7, fdatasync exists but + # is not declared, and is ineffective. + LIB_FDATASYNC= + AC_SUBST([LIB_FDATASYNC]) + AC_CHECK_DECLS_ONCE([fdatasync]) + if test $ac_cv_have_decl_fdatasync = yes; then + coreutils_saved_libs=$LIBS + AC_SEARCH_LIBS([fdatasync], [rt posix4], + [test "$ac_cv_search_fdatasync" = "none required" || + LIB_FDATASYNC=$ac_cv_search_fdatasync]) + AC_CHECK_FUNCS([fdatasync]) + LIBS=$coreutils_saved_libs + fi + + # Check whether libcap is usable -- for ls --color support + LIB_CAP= + AC_ARG_ENABLE([libcap], + AS_HELP_STRING([--disable-libcap], [disable libcap support])) + if test "X$enable_libcap" != "Xno"; then + AC_CHECK_LIB([cap], [cap_get_file], + [AC_CHECK_HEADER([sys/capability.h], + [LIB_CAP=-lcap + AC_DEFINE([HAVE_CAP], [1], [libcap usability])] + )]) + if test "X$LIB_CAP" = "X"; then + if test "X$enable_libcap" = "Xyes"; then + AC_MSG_ERROR([libcap library was not found or not usable]) + else + AC_MSG_WARN([libcap library was not found or not usable.]) + AC_MSG_WARN([AC_PACKAGE_NAME will be built without capability support.]) + fi + fi + else + AC_MSG_WARN([libcap support disabled by user]) + fi + AC_SUBST([LIB_CAP]) + + # See if linking 'seq' requires -lm. + # It does on nearly every system. The single exception (so far) is + # BeOS which has all the math functions in the normal runtime library + # and doesn't have a separate math library. + + AC_SUBST([SEQ_LIBM]) + jm_break=: + for jm_seqlibs in '' '-lm'; do + jm_seq_save_LIBS=$LIBS + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <math.h> + ]], + [[static double x, y; + x = floor (x); + x = rint (x); + x = modf (x, &y);]])], + [SEQ_LIBM=$jm_seqlibs + jm_break=break]) + LIBS=$jm_seq_save_LIBS + $jm_break + done + + # See is fpsetprec() required to use extended double precision + # This is needed on 32 bit FreeBSD to give accurate conversion of: + # `numfmt 9223372036854775808` + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <ieeefp.h> + ]], + [[#ifdef __i386__ + fpsetprec (FP_PE); + #else + # error not required on 64 bit + #endif + ]])], + [ac_have_fpsetprec=yes], + [ac_have_fpsetprec=no]) + if test "$ac_have_fpsetprec" = "yes" ; then + AC_DEFINE([HAVE_FPSETPREC], 1, [whether fpsetprec is present and required]) + fi + + AC_REQUIRE([AM_LANGINFO_CODESET]) + + # Accept configure options: --with-tty-group[=GROUP], --without-tty-group + # You can determine the group of a TTY via 'stat --format %G /dev/tty' + # Omitting this option is equivalent to using --without-tty-group. + AC_ARG_WITH([tty-group], + AS_HELP_STRING([--with-tty-group[[[=NAME]]]], + [group used by system for TTYs, "tty" when not specified] + [ (default: do not rely on any group used for TTYs)]), + [tty_group_name=$withval], + [tty_group_name=no]) + + if test "x$tty_group_name" != xno; then + if test "x$tty_group_name" = xyes; then + tty_group_name=tty + fi + AC_MSG_NOTICE([TTY group used by system set to "$tty_group_name"]) + AC_DEFINE_UNQUOTED([TTY_GROUP_NAME], ["$tty_group_name"], + [group used by system for TTYs]) + fi +]) + +AC_DEFUN([gl_CHECK_ALL_HEADERS], +[ + AC_CHECK_HEADERS_ONCE([ + hurd.h + linux/falloc.h + linux/fs.h + paths.h + priv.h + stropts.h + sys/mtio.h + sys/param.h + sys/systeminfo.h + syslog.h + ]) + AC_CHECK_HEADERS([sys/sysctl.h], [], [], + [AC_INCLUDES_DEFAULT + [#if HAVE_SYS_PARAM_H + #include <sys/param.h> + #endif]]) +]) + +# This macro must be invoked before any tests that run the compiler. +AC_DEFUN([gl_CHECK_ALL_TYPES], +[ + dnl Checks for typedefs, structures, and compiler characteristics. + AC_REQUIRE([gl_BIGENDIAN]) + AC_REQUIRE([AC_C_VOLATILE]) + AC_REQUIRE([AC_C_INLINE]) + AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) + + AC_REQUIRE([gl_CHECK_ALL_HEADERS]) + AC_CHECK_MEMBERS( + [struct stat.st_author],,, + [$ac_includes_default +#include <sys/stat.h> + ]) + AC_REQUIRE([AC_STRUCT_ST_BLOCKS]) + + AC_REQUIRE([AC_TYPE_GETGROUPS]) + AC_REQUIRE([AC_TYPE_MBSTATE_T]) + AC_REQUIRE([AC_TYPE_MODE_T]) + AC_REQUIRE([AC_TYPE_OFF_T]) + AC_REQUIRE([AC_TYPE_PID_T]) + AC_REQUIRE([AC_TYPE_SIZE_T]) + AC_REQUIRE([AC_TYPE_UID_T]) + AC_CHECK_TYPE([ino_t], [unsigned long int]) + + dnl This relies on the fact that Autoconf's implementation of + dnl AC_CHECK_TYPE checks includes unistd.h. + AC_CHECK_TYPE([major_t], [unsigned int]) + AC_CHECK_TYPE([minor_t], [unsigned int]) + + AC_REQUIRE([AC_HEADER_MAJOR]) +]) |