1# serial 46
2# See if we need to use our replacement for Solaris' openat et al functions.
3
4dnl Copyright (C) 2004-2021 Free Software Foundation, Inc.
5dnl This file is free software; the Free Software Foundation
6dnl gives unlimited permission to copy and/or distribute it,
7dnl with or without modifications, as long as this notice is preserved.
8
9# Written by Jim Meyering.
10
11AC_DEFUN([gl_FUNC_OPENAT],
12[
13  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
14  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
15  AC_CHECK_FUNCS_ONCE([openat])
16  AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
17  AC_REQUIRE([gl_PREPROC_O_CLOEXEC])
18  case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink+$gl_cv_macro_O_CLOEXEC in
19  yes+*yes+yes)
20    ;;
21  yes+*)
22    # Solaris 10 lacks O_CLOEXEC.
23    # Solaris 9 has *at functions, but uniformly mishandles trailing
24    # slash in all of them.
25    REPLACE_OPENAT=1
26    ;;
27  *)
28    HAVE_OPENAT=0
29    ;;
30  esac
31])
32
33# Prerequisites of lib/openat.c.
34AC_DEFUN([gl_PREREQ_OPENAT],
35[
36  AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T])
37  :
38])
39