1 # acl.m4 - check for access control list (ACL) primitives
3 # Copyright (C) 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 # This file is free software; the Free Software Foundation
5 # gives unlimited permission to copy and/or distribute it,
6 # with or without modifications, as long as this notice is preserved.
8 # Written by Paul Eggert and Jim Meyering.
10 AC_DEFUN([AC_FUNC_ACL],
13 AC_LIBOBJ([file-has-acl])
15 dnl Prerequisites of lib/acl.c.
16 AC_CHECK_HEADERS(sys/acl.h)
19 AC_SEARCH_LIBS(acl_get_file, acl,
20 [test "$ac_cv_search_acl_get_file" = "none required" ||
21 LIB_ACL=$ac_cv_search_acl_get_file])
23 AC_CHECK_HEADERS(acl/libacl.h)
24 AC_CHECK_FUNCS(acl_get_file acl_get_fd acl_set_file acl_set_fd \
25 acl_free acl_from_mode acl_from_text \
26 acl_delete_def_file acl_extended_file)
27 if test $ac_cv_header_sys_acl_h = yes; then
29 if test $ac_cv_func_acl_get_file = yes; then
30 # If we detect the acl_get_file bug, disable ACL support altogether.
31 gl_ACL_GET_FILE( , [use_acl=0])
36 if test $use_acl = 1 &&
37 test $ac_cv_func_acl_get_file = yes &&
38 test $ac_cv_func_acl_free = yes; then
39 AC_REPLACE_FUNCS([acl_entries])
42 if test $use_acl = 1; then
44 AC_SEARCH_LIBS([acl_trivial], [sec],
45 [AC_DEFINE([HAVE_ACL_TRIVIAL], 1,
46 [Define to 1 if you have the `acl_trivial' function.])
47 test "$ac_cv_search_acl_trivial" = "none required" ||
48 LIB_ACL_TRIVIAL="$ac_cv_search_acl_trivial"])
49 AC_SUBST([LIB_ACL_TRIVIAL])
52 AC_DEFINE_UNQUOTED(USE_ACL, $use_acl,
53 [Define if you want access control list support.])
56 # gl_ACL_GET_FILE(IF-WORKS, IF-NOT)
57 # -------------------------------------
58 # If `acl_get_file' works (does not have a particular bug),
59 # run IF-WORKS, otherwise, IF-NOT.
60 # This tests for a Darwin 8.7.0 bug, whereby acl_get_file returns NULL,
61 # but sets errno = ENOENT for an existing file or directory.
62 AC_DEFUN([gl_ACL_GET_FILE],
64 AC_CACHE_CHECK([for working acl_get_file], gl_cv_func_working_acl_get_file,
67 [[#include <sys/types.h>
71 [[return !! (!acl_get_file (".", ACL_TYPE_ACCESS)
72 && errno == ENOENT);]])],
73 [gl_cv_func_working_acl_get_file=yes],
74 [gl_cv_func_working_acl_get_file=no],
75 [gl_cv_func_working_acl_get_file=cross-compiling])])
77 AS_IF([test $gl_cv_func_working_acl_get_file = yes], [$1], [$2])