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emacs/m4/faccessat.m4
Paul Eggert 8be3aee281 Merge from Gnulib
This incorporates:
2017-11-23 stat: work around Solaris bug with tv_nsec < 0
2017-11-12 maint: shorten https://lists.gnu.org/archive/html/... links
* build-aux/config.sub, doc/misc/texinfo.tex, lib/allocator.h:
* lib/fstatat.c, lib/intprops.h, lib/lstat.c, lib/signal.in.h:
* lib/stat-time.h, lib/stdio-impl.h, lib/stdio.in.h:
* lib/timespec.h, m4/alloca.m4, m4/extern-inline.m4:
* m4/faccessat.m4, m4/fstatat.m4, m4/gnulib-common.m4:
* m4/lstat.m4, m4/std-gnu11.m4, m4/sys_types_h.m4:
* m4/vararrays.m4:
Copy from Gnulib.
2017-11-25 22:48:09 -08:00

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Plaintext

# serial 8
# See if we need to provide faccessat replacement.
dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
dnl This file is free software; the Free 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_FACCESSAT],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
dnl Persuade glibc <unistd.h> to declare faccessat().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_CHECK_FUNCS_ONCE([faccessat])
if test $ac_cv_func_faccessat = no; then
HAVE_FACCESSAT=0
else
case "$gl_cv_func_lstat_dereferences_slashed_symlink" in
*yes) ;;
*) REPLACE_FACCESSAT=1 ;;
esac
fi
])
# Prerequisites of lib/faccessat.c.
AC_DEFUN([gl_PREREQ_FACCESSAT],
[
AC_CHECK_FUNCS([access])
])