1 # acl.m4 - check for access control list (ACL) primitives
4 # Copyright (C) 2002, 2004-2013 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 AS_HELP_STRING([--disable-acl], [do not support ACLs]),
19 if test "x$enable_acl" != "xno"; then
20 dnl On all platforms, the ACL related API is declared in <sys/acl.h>.
21 AC_CHECK_HEADERS([sys/acl.h])
22 if test $ac_cv_header_sys_acl_h = yes; then
25 dnl Test for POSIX-draft-like API (Linux, FreeBSD, Mac OS X, IRIX, Tru64).
26 dnl -lacl is needed on Linux, -lpacl is needed on OSF/1.
27 if test $use_acl = 0; then
28 AC_SEARCH_LIBS([acl_get_file], [acl pacl],
29 [if test "$ac_cv_search_acl_get_file" != "none required"; then
30 LIB_ACL=$ac_cv_search_acl_get_file
33 [acl_get_file acl_get_fd acl_set_file acl_set_fd \
34 acl_free acl_from_mode acl_from_text \
35 acl_delete_def_file acl_extended_file \
36 acl_delete_fd_np acl_delete_file_np \
37 acl_copy_ext_native acl_create_entry_np \
38 acl_to_short_text acl_free_text])
39 # If the acl_get_file bug is detected, don't enable the ACL support.
40 gl_ACL_GET_FILE([use_acl=1], [])
41 if test $use_acl = 1; then
42 dnl On Linux, additional API is declared in <acl/libacl.h>.
43 AC_CHECK_HEADERS([acl/libacl.h])
44 AC_REPLACE_FUNCS([acl_entries])
45 AC_CACHE_CHECK([for ACL_FIRST_ENTRY],
46 [gl_cv_acl_ACL_FIRST_ENTRY],
47 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
48 [[#include <sys/types.h>
50 int type = ACL_FIRST_ENTRY;]])],
51 [gl_cv_acl_ACL_FIRST_ENTRY=yes],
52 [gl_cv_acl_ACL_FIRST_ENTRY=no])])
53 if test $gl_cv_acl_ACL_FIRST_ENTRY = yes; then
54 AC_DEFINE([HAVE_ACL_FIRST_ENTRY], [1],
55 [Define to 1 if the constant ACL_FIRST_ENTRY exists.])
57 dnl On Mac OS X, other types of ACLs are supported.
58 AC_CACHE_CHECK([for ACL_TYPE_EXTENDED],
59 [gl_cv_acl_ACL_TYPE_EXTENDED],
60 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
61 [[#include <sys/types.h>
63 int type = ACL_TYPE_EXTENDED;]])],
64 [gl_cv_acl_ACL_TYPE_EXTENDED=yes],
65 [gl_cv_acl_ACL_TYPE_EXTENDED=no])])
66 if test $gl_cv_acl_ACL_TYPE_EXTENDED = yes; then
67 AC_DEFINE([HAVE_ACL_TYPE_EXTENDED], [1],
68 [Define to 1 if the ACL type ACL_TYPE_EXTENDED exists.])
76 dnl Test for Solaris API (Solaris, Cygwin).
77 if test $use_acl = 0; then
78 AC_CHECK_FUNCS([facl])
79 if test $ac_cv_func_facl = yes; then
80 AC_SEARCH_LIBS([acl_trivial], [sec],
81 [if test "$ac_cv_search_acl_trivial" != "none required"; then
82 LIB_ACL=$ac_cv_search_acl_trivial
85 AC_CHECK_FUNCS([acl_trivial])
90 dnl Test for HP-UX API.
91 if test $use_acl = 0; then
92 AC_CHECK_FUNCS([getacl])
93 if test $ac_cv_func_getacl = yes; then
96 dnl Test for HP-UX 11.11 API.
97 AC_CHECK_HEADERS([aclv.h], [], [], [#include <sys/types.h>])
100 dnl Test for AIX API (AIX 5.3 or newer).
101 if test $use_acl = 0; then
102 AC_CHECK_FUNCS([aclx_get])
103 if test $ac_cv_func_aclx_get = yes; then
108 dnl Test for older AIX API.
109 if test $use_acl = 0 || test "$ac_cv_func_aclx_get" = yes; then
110 AC_CHECK_FUNCS([statacl])
111 if test $ac_cv_func_statacl = yes; then
116 dnl Test for NonStop Kernel API.
117 if test $use_acl = 0; then
118 AC_CHECK_FUNCS([aclsort])
119 if test $ac_cv_func_aclsort = yes; then
126 if test "x$enable_acl$use_acl" = "xyes0"; then
127 AC_MSG_ERROR([ACLs enabled but support not detected])
128 elif test "x$enable_acl$use_acl" = "xauto0"; then
129 AC_MSG_WARN([libacl development library was not found or not usable.])
130 AC_MSG_WARN([AC_PACKAGE_NAME will be built without ACL support.])
134 AC_DEFINE_UNQUOTED([USE_ACL], [$use_acl],
135 [Define to nonzero if you want access control list support.])
140 # gl_ACL_GET_FILE(IF-WORKS, IF-NOT)
141 # -------------------------------------
142 # If 'acl_get_file' works (does not have a particular bug),
143 # run IF-WORKS, otherwise, IF-NOT.
144 # This tests for a Darwin 8.7.0 bug, whereby acl_get_file returns NULL,
145 # but sets errno = ENOENT for an existing file or directory.
146 AC_DEFUN([gl_ACL_GET_FILE],
148 AC_CACHE_CHECK([for working acl_get_file], [gl_cv_func_working_acl_get_file],
151 [[#include <sys/types.h>
155 [[if (!acl_get_file (".", ACL_TYPE_ACCESS) && errno == ENOENT)
159 [gl_cv_func_working_acl_get_file=yes],
160 [gl_cv_func_working_acl_get_file=no],
161 [gl_cv_func_working_acl_get_file=cross-compiling])])
163 AS_IF([test $gl_cv_func_working_acl_get_file = yes], [$1], [$2])