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emacs/m4/faccessat.m4
Paul Eggert 7775c47298 Merge from Gnulib
This incorporates:
2017-11-11 faccessat: port to macOS (Bug#29231)
2017-11-05 fstatat: pacify GCC on unusual platform
* build-aux/config.guess, build-aux/config.sub:
* doc/misc/texinfo.tex, lib/faccessat.c, lib/fstatat.c:
* lib/unistd.in.h, m4/faccessat.m4, m4/unistd_h.m4:
Copy from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
2017-11-11 23:12:17 -08:00

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# serial 7
# 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])
dnl Persuade glibc <unistd.h> to declare faccessat().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_CHECK_FUNCS_ONCE([faccessat])
if test $ac_cv_func_faccessat = no; then
HAVE_FACCESSAT=0
elif test "$gl_cv_func_lstat_dereferences_slashed_symlink" != yes; then
REPLACE_FACCESSAT=1
fi
])
# Prerequisites of lib/faccessat.c.
AC_DEFUN([gl_PREREQ_FACCESSAT],
[
AC_CHECK_FUNCS([access])
])