2 # See if we need to provide faccessat replacement.
4 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc.
5 dnl This file is free software; the Free Software Foundation
6 dnl gives unlimited permission to copy and/or distribute it,
7 dnl with or without modifications, as long as this notice is preserved.
9 # Written by Eric Blake.
11 AC_DEFUN([gl_FUNC_FACCESSAT],
13 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
14 AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
16 dnl Persuade glibc <unistd.h> to declare faccessat().
17 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
19 AC_CHECK_FUNCS_ONCE([faccessat])
20 if test $ac_cv_func_faccessat = no; then
23 case "$gl_cv_func_lstat_dereferences_slashed_symlink" in
25 *) REPLACE_FACCESSAT=1 ;;
30 # Prerequisites of lib/faccessat.c.
31 AC_DEFUN([gl_PREREQ_FACCESSAT],
33 AC_CHECK_FUNCS([access])