add a minimal testsuite for the poll module

[gnulib.git] / m4 / acl.m4

diff --git a/m4/acl.m4 b/m4/acl.m4
index d5702ac..494ce4b 100644 (file)
--- a/m4/acl.m4
+++ b/m4/acl.m4
@@ -1,5 +1,5 @@
 # acl.m4 - check for access control list (ACL) primitives
-# serial 7
+# serial 8
 
 # Copyright (C) 2002, 2004-2008 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -18,43 +18,100 @@ AC_DEFUN([gl_FUNC_ACL],
   use_acl=0
   AC_REQUIRE([AC_C_INLINE])
   if test "x$enable_acl" != "xno"; then
-    dnl Prerequisites of lib/acl.c.
-    AC_CHECK_HEADERS(sys/acl.h)
+    dnl On all platforms, the ACL related API is declared in <sys/acl.h>.
+    AC_CHECK_HEADERS([sys/acl.h])
     if test $ac_cv_header_sys_acl_h = yes; then
       ac_save_LIBS=$LIBS
-      AC_CHECK_FUNCS([acl])
-      use_acl=1
-      AC_SEARCH_LIBS([acl_trivial], [sec],
-       [test "$ac_cv_search_acl_trivial" = "none required" ||
-        LIB_ACL=$ac_cv_search_acl_trivial
-        AC_CHECK_FUNCS([acl_trivial])],
-       [AC_CHECK_FUNCS([acl_trivial])
-        if test $ac_cv_func_acl_trivial != yes; then
-          dnl -lacl is needed on Linux, -lpacl is needed on OSF/1.
-          AC_SEARCH_LIBS([acl_get_file], [acl pacl],
-            [test "$ac_cv_search_acl_get_file" = "none required" ||
-             LIB_ACL=$ac_cv_search_acl_get_file
-             AC_CHECK_FUNCS(
-               [acl_get_file acl_get_fd acl_set_file acl_set_fd \
-                acl_free acl_from_mode acl_from_text \
-                acl_delete_def_file acl_extended_file \
-                acl_delete_fd_np acl_delete_file_np \
-                acl_copy_ext_native acl_create_entry_np \
-                acl_to_short_text acl_free_text])
-             if test $ac_cv_func_acl_get_file = yes; then
-               # If the acl_get_file bug is detected, disable all ACL support.
-               gl_ACL_GET_FILE( , [use_acl=0])
-             fi
-             if test $use_acl = 1; then
-               AC_CHECK_HEADERS([acl/libacl.h])
-               if test $ac_cv_func_acl_get_file = yes &&
-                  test $ac_cv_func_acl_free = yes; then
-                 AC_REPLACE_FUNCS([acl_entries])
-               fi
-             else
-               LIB_ACL=
-             fi])
-        fi])
+
+      dnl Test for POSIX-draft-like API (Linux, FreeBSD, MacOS X, IRIX, Tru64).
+      dnl -lacl is needed on Linux, -lpacl is needed on OSF/1.
+      if test $use_acl = 0; then
+       AC_SEARCH_LIBS([acl_get_file], [acl pacl],
+         [if test "$ac_cv_search_acl_get_file" != "none required"; then
+            LIB_ACL=$ac_cv_search_acl_get_file
+           fi
+          AC_CHECK_FUNCS(
+            [acl_get_file acl_get_fd acl_set_file acl_set_fd \
+             acl_free acl_from_mode acl_from_text \
+             acl_delete_def_file acl_extended_file \
+             acl_delete_fd_np acl_delete_file_np \
+             acl_copy_ext_native acl_create_entry_np \
+             acl_to_short_text acl_free_text])
+          # If the acl_get_file bug is detected, don't enable the ACL support.
+          gl_ACL_GET_FILE([use_acl=1], [])
+          if test $use_acl = 1; then
+            dnl On Linux, additional API is declared in <acl/libacl.h>.
+            AC_CHECK_HEADERS([acl/libacl.h])
+            AC_REPLACE_FUNCS([acl_entries])
+            AC_CACHE_CHECK([for ACL_FIRST_ENTRY],
+              [gl_cv_acl_ACL_FIRST_ENTRY],
+              [AC_COMPILE_IFELSE(
+[[#include <sys/types.h>
+#include <sys/acl.h>
+int type = ACL_FIRST_ENTRY;]],
+                 [gl_cv_acl_ACL_FIRST_ENTRY=yes],
+                 [gl_cv_acl_ACL_FIRST_ENTRY=no])])
+            if test $gl_cv_acl_ACL_FIRST_ENTRY = yes; then
+              AC_DEFINE([HAVE_ACL_FIRST_ENTRY], 1,
+                [Define to 1 if the constant ACL_FIRST_ENTRY exists.])
+            fi
+            dnl On MacOS X, other types of ACLs are supported.
+            AC_CACHE_CHECK([for ACL_TYPE_EXTENDED],
+              [gl_cv_acl_ACL_TYPE_EXTENDED],
+              [AC_COMPILE_IFELSE(
+[[#include <sys/types.h>
+#include <sys/acl.h>
+int type = ACL_TYPE_EXTENDED;]],
+                 [gl_cv_acl_ACL_TYPE_EXTENDED=yes],
+                 [gl_cv_acl_ACL_TYPE_EXTENDED=no])])
+            if test $gl_cv_acl_ACL_TYPE_EXTENDED = yes; then
+              AC_DEFINE([HAVE_ACL_TYPE_EXTENDED], 1,
+                [Define to 1 if the ACL type ACL_TYPE_EXTENDED exists.])
+            fi
+          else
+            LIB_ACL=
+          fi
+         ])
+      fi
+
+      dnl Test for Solaris API (Solaris, Cygwin).
+      if test $use_acl = 0; then
+       AC_CHECK_FUNCS([acl])
+       if test $ac_cv_func_acl = yes; then
+         AC_SEARCH_LIBS([acl_trivial], [sec],
+           [if test "$ac_cv_search_acl_trivial" != "none required"; then
+              LIB_ACL=$ac_cv_search_acl_trivial
+            fi
+           ])
+         AC_CHECK_FUNCS([acl_trivial])
+         use_acl=1
+       fi
+      fi
+
+      dnl Test for HP-UX API.
+      if test $use_acl = 0 || test "$ac_cv_func_acl" = yes; then
+       AC_CHECK_FUNCS([getacl])
+       if test $ac_cv_func_getacl = yes; then
+         use_acl=1
+       fi
+      fi
+
+      dnl Test for AIX API (AIX 5.3 or newer).
+      if test $use_acl = 0; then
+       AC_CHECK_FUNCS([aclx_get])
+       if test $ac_cv_func_aclx_get = yes; then
+         use_acl=1
+       fi
+      fi
+
+      dnl Test for older AIX API.
+      if test $use_acl = 0 || test "$ac_cv_func_aclx_get" = yes; then
+       AC_CHECK_FUNCS([statacl])
+       if test $ac_cv_func_statacl = yes; then
+         use_acl=1
+       fi
+      fi
+
       LIBS=$ac_save_LIBS
     fi
     if test "x$enable_acl$use_acl" = "xyes0"; then