1 # acl.m4 - check for access control list (ACL) primitives
4 # Copyright (C) 2002, 2004-2008 Free Software Foundation, Inc.
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
9 # Written by Paul Eggert and Jim Meyering.
11 AC_DEFUN([gl_FUNC_ACL],
14 AC_LIBOBJ([file-has-acl])
17 AS_HELP_STRING([--disable-acl], [do not support ACLs]),
22 if test "x$enable_acl" != "xno"; then
23 dnl Prerequisites of lib/acl.c.
24 AC_CHECK_HEADERS(sys/acl.h)
25 if test $ac_cv_header_sys_acl_h = yes; then
29 AC_SEARCH_LIBS([acl_trivial], [sec],
30 [test "$ac_cv_search_acl_trivial" = "none required" ||
31 LIB_ACL=$ac_cv_search_acl_trivial
32 AC_CHECK_FUNCS([acl_trivial])],
33 [AC_CHECK_FUNCS([acl_trivial])
34 if test $ac_cv_func_acl_trivial != yes; then
35 AC_SEARCH_LIBS([acl_get_file], [acl],
36 [test "$ac_cv_search_acl_get_file" = "none required" ||
37 LIB_ACL=$ac_cv_search_acl_get_file
39 [acl_get_file acl_get_fd acl_set_file acl_set_fd \
40 acl_free acl_from_mode acl_from_text \
41 acl_delete_def_file acl_extended_file])
42 if test $ac_cv_func_acl_get_file = yes; then
43 # If the acl_get_file bug is detected, disable all ACL support.
44 gl_ACL_GET_FILE( , [use_acl=0])
46 if test $use_acl = 1; then
47 AC_CHECK_HEADERS([acl/libacl.h])
48 if test $ac_cv_func_acl_get_file = yes &&
49 test $ac_cv_func_acl_free = yes; then
50 AC_REPLACE_FUNCS([acl_entries])
58 if test "x$enable_acl$use_acl" = "xyes0"; then
59 AC_MSG_ERROR([ACLs enabled but support not detected])
63 AC_DEFINE_UNQUOTED([USE_ACL], [$use_acl],
64 [Define to nonzero if you want access control list support.])
66 # This is for backwards compatibility; remove this by the end of 2007.
68 AC_SUBST([LIB_ACL_TRIVIAL])
71 # gl_ACL_GET_FILE(IF-WORKS, IF-NOT)
72 # -------------------------------------
73 # If `acl_get_file' works (does not have a particular bug),
74 # run IF-WORKS, otherwise, IF-NOT.
75 # This tests for a Darwin 8.7.0 bug, whereby acl_get_file returns NULL,
76 # but sets errno = ENOENT for an existing file or directory.
77 AC_DEFUN([gl_ACL_GET_FILE],
79 AC_CACHE_CHECK([for working acl_get_file], gl_cv_func_working_acl_get_file,
82 [[#include <sys/types.h>
86 [[return !! (!acl_get_file (".", ACL_TYPE_ACCESS)
87 && errno == ENOENT);]])],
88 [gl_cv_func_working_acl_get_file=yes],
89 [gl_cv_func_working_acl_get_file=no],
90 [gl_cv_func_working_acl_get_file=cross-compiling])])
92 AS_IF([test $gl_cv_func_working_acl_get_file = yes], [$1], [$2])