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([gl_FUNC_ACL],
13 AC_LIBOBJ([file-has-acl])
15 dnl Prerequisites of lib/acl.c.
18 AC_CHECK_HEADERS(sys/acl.h)
19 if test $ac_cv_header_sys_acl_h = yes; then
23 AC_SEARCH_LIBS([acl_trivial], [sec],
24 [test "$ac_cv_search_acl_trivial" = "none required" ||
25 LIB_ACL=$ac_cv_search_acl_trivial
26 AC_CHECK_FUNCS([acl_trivial])],
27 [if test $ac_cv_func_acl_trivial != yes; then
28 AC_SEARCH_LIBS([acl_get_file], [acl],
29 [test "$ac_cv_search_acl_get_file" = "none required" ||
30 LIB_ACL=$ac_cv_search_acl_get_file
32 [acl_get_file acl_get_fd acl_set_file acl_set_fd \
33 acl_free acl_from_mode acl_from_text \
34 acl_delete_def_file acl_extended_file])
35 if test $ac_cv_func_acl_get_file = yes; then
36 # If the acl_get_file bug is detected, disable all ACL support.
37 gl_ACL_GET_FILE( , [use_acl=0])
39 if test $use_acl = 1; then
40 AC_CHECK_HEADERS([acl/libacl.h])
41 if test $ac_cv_func_acl_get_file = yes &&
42 test $ac_cv_func_acl_free = yes; then
43 AC_REPLACE_FUNCS([acl_entries])
52 AC_DEFINE_UNQUOTED([USE_ACL], [$use_acl],
53 [Define to nonzero if you want access control list support.])
55 # This is for backwards compatibility; remove this by the end of 2007.
57 AC_SUBST([LIB_ACL_TRIVIAL])
60 # gl_ACL_GET_FILE(IF-WORKS, IF-NOT)
61 # -------------------------------------
62 # If `acl_get_file' works (does not have a particular bug),
63 # run IF-WORKS, otherwise, IF-NOT.
64 # This tests for a Darwin 8.7.0 bug, whereby acl_get_file returns NULL,
65 # but sets errno = ENOENT for an existing file or directory.
66 AC_DEFUN([gl_ACL_GET_FILE],
68 AC_CACHE_CHECK([for working acl_get_file], gl_cv_func_working_acl_get_file,
71 [[#include <sys/types.h>
75 [[return !! (!acl_get_file (".", ACL_TYPE_ACCESS)
76 && errno == ENOENT);]])],
77 [gl_cv_func_working_acl_get_file=yes],
78 [gl_cv_func_working_acl_get_file=no],
79 [gl_cv_func_working_acl_get_file=cross-compiling])])
81 AS_IF([test $gl_cv_func_working_acl_get_file = yes], [$1], [$2])