Mercurial > gnulib
view m4/getgroups.m4 @ 39194:a84ae461a2f6
Add cross-compilation results for GNU/Hurd.
* m4/calloc.m4: Add GNU/Hurd guess.
* m4/cbrtl.m4: Likewise.
* m4/ceil.m4: Likewise.
* m4/ceilf.m4: Likewise.
* m4/ceill.m4: Likewise.
* m4/chown.m4: Likewise.
* m4/duplocale.m4: Likewise.
* m4/exp2l.m4: Likewise.
* m4/expm1.m4: Likewise.
* m4/fchdir.m4: Likewise.
* m4/floor.m4: Likewise.
* m4/floorf.m4: Likewise.
* m4/fmod.m4: Likewise.
* m4/fmodf.m4: Likewise.
* m4/fmodl.m4: Likewise.
* m4/getcwd.m4: Likewise.
* m4/getgroups.m4: Likewise.
* m4/gettimeofday.m4: Likewise.
* m4/hypot.m4: Likewise.
* m4/hypotf.m4: Likewise.
* m4/hypotl.m4: Likewise.
* m4/link-follow.m4: Likewise.
* m4/link.m4: Likewise.
* m4/linkat.m4: Likewise.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/log10f.m4: Likewise.
* m4/log1p.m4: Likewise.
* m4/log1pf.m4: Likewise.
* m4/log1pl.m4: Likewise.
* m4/log2.m4: Likewise.
* m4/log2f.m4: Likewise.
* m4/logf.m4: Likewise.
* m4/lstat.m4: Likewise.
* m4/malloc.m4: Likewise.
* m4/mbrlen.m4: Likewise.
* m4/mbrtowc.m4: Likewise.
* m4/mkdir.m4: Likewise.
* m4/mkfifo.m4: Likewise.
* m4/mknod.m4: Likewise.
* m4/mkstemp.m4: Likewise.
* m4/modf.m4: Likewise.
* m4/modff.m4: Likewise.
* m4/modfl.m4: Likewise.
* m4/printf.m4: Likewise.
* m4/pselect.m4: Likewise.
* m4/ptsname.m4: Likewise.
* m4/putenv.m4: Likewise.
* m4/readlink.m4: Likewise.
* m4/realloc.m4: Likewise.
* m4/remainder.m4: Likewise.
* m4/remainderf.m4: Likewise.
* m4/remainderl.m4: Likewise.
* m4/rmdir.m4: Likewise.
* m4/round.m4: Likewise.
* m4/roundf.m4: Likewise.
* m4/roundl.m4: Likewise.
* m4/select.m4: Likewise.
* m4/setenv.m4: Likewise.
* m4/signbit.m4: Likewise.
* m4/sleep.m4: Likewise.
* m4/stat.m4: Likewise.
* m4/strerror.m4: Likewise.
* m4/strtok_r.m4: Likewise.
* m4/symlink.m4: Likewise.
* m4/symlinkat.m4: Likewise.
* m4/trunc.m4: Likewise.
* m4/truncf.m4: Likewise.
* m4/truncl.m4: Likewise.
* m4/tzset.m4: Likewise.
* m4/ungetc.m4: Likewise.
* m4/usleep.m4: Likewise.
* m4/wcwidth.m4: Likewise.
author | Samuel Thibault <samuel.thibault@gnu.org> |
---|---|
date | Fri, 29 Dec 2017 17:30:07 +0100 |
parents | a8586d5e30d2 |
children | 10eb9086bea0 |
line wrap: on
line source
# serial 20 dnl From Jim Meyering. dnl A wrapper around AC_FUNC_GETGROUPS. # Copyright (C) 1996-1997, 1999-2004, 2008-2017 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. m4_version_prereq([2.70], [] ,[ # This is taken from the following Autoconf patch: # https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9 AC_DEFUN([AC_FUNC_GETGROUPS], [ AC_REQUIRE([AC_TYPE_GETGROUPS])dnl AC_REQUIRE([AC_TYPE_SIZE_T])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles AC_CHECK_FUNC([getgroups]) # If we don't yet have getgroups, see if it's in -lbsd. # This is reported to be necessary on an ITOS 3000WS running SEIUX 3.1. ac_save_LIBS=$LIBS if test $ac_cv_func_getgroups = no; then AC_CHECK_LIB(bsd, getgroups, [GETGROUPS_LIB=-lbsd]) fi # Run the program to test the functionality of the system-supplied # getgroups function only if there is such a function. if test $ac_cv_func_getgroups = yes; then AC_CACHE_CHECK([for working getgroups], [ac_cv_func_getgroups_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT], [[/* On Ultrix 4.3, getgroups (0, 0) always fails. */ return getgroups (0, 0) == -1;]]) ], [ac_cv_func_getgroups_works=yes], [ac_cv_func_getgroups_works=no], [case "$host_os" in # (( # Guess yes on glibc systems. *-gnu* | gnu*) ac_cv_func_getgroups_works="guessing yes" ;; # If we don't know, assume the worst. *) ac_cv_func_getgroups_works="guessing no" ;; esac ]) ]) else ac_cv_func_getgroups_works=no fi case "$ac_cv_func_getgroups_works" in *yes) AC_DEFINE([HAVE_GETGROUPS], [1], [Define to 1 if your system has a working `getgroups' function.]) ;; esac LIBS=$ac_save_LIBS ])# AC_FUNC_GETGROUPS ]) AC_DEFUN([gl_FUNC_GETGROUPS], [ AC_REQUIRE([AC_TYPE_GETGROUPS]) AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_FUNC_GETGROUPS if test $ac_cv_func_getgroups != yes; then HAVE_GETGROUPS=0 else if test "$ac_cv_type_getgroups" != gid_t \ || { case "$ac_cv_func_getgroups_works" in *yes) false;; *) true;; esac }; then REPLACE_GETGROUPS=1 AC_DEFINE([GETGROUPS_ZERO_BUG], [1], [Define this to 1 if getgroups(0,NULL) does not return the number of groups.]) else dnl Detect FreeBSD bug; POSIX requires getgroups(-1,ptr) to fail. AC_CACHE_CHECK([whether getgroups handles negative values], [gl_cv_func_getgroups_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[int size = getgroups (0, 0); gid_t *list = malloc (size * sizeof *list); int result = getgroups (-1, list) != -1; free (list); return result;]])], [gl_cv_func_getgroups_works=yes], [gl_cv_func_getgroups_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_getgroups_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_getgroups_works="guessing no" ;; esac ])]) case "$gl_cv_func_getgroups_works" in *yes) ;; *) REPLACE_GETGROUPS=1 ;; esac fi fi test -n "$GETGROUPS_LIB" && LIBS="$GETGROUPS_LIB $LIBS" ])