Fix: tests: invoke destroy APIs for queues/stacks
[urcu.git] / m4 / ax_c___attribute__.m4
CommitLineData
074c3a1b
MJ
1# ===========================================================================
2# http://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html
3# ===========================================================================
4#
5# SYNOPSIS
6#
7# AX_C___ATTRIBUTE__
8#
9# DESCRIPTION
10#
11# Provides a test for the compiler support of __attribute__ extensions.
12# Defines HAVE___ATTRIBUTE__ if it is found.
13#
14# LICENSE
15#
16# Copyright (c) 2008 Stepan Kasal <skasal@redhat.com>
17# Copyright (c) 2008 Christian Haggstrom
18# Copyright (c) 2008 Ryan McCabe <ryan@numb.org>
19#
20# This program is free software; you can redistribute it and/or modify it
21# under the terms of the GNU General Public License as published by the
22# Free Software Foundation; either version 2 of the License, or (at your
23# option) any later version.
24#
25# This program is distributed in the hope that it will be useful, but
26# WITHOUT ANY WARRANTY; without even the implied warranty of
27# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
28# Public License for more details.
29#
30# You should have received a copy of the GNU General Public License along
31# with this program. If not, see <http://www.gnu.org/licenses/>.
32#
33# As a special exception, the respective Autoconf Macro's copyright owner
34# gives unlimited permission to copy, distribute and modify the configure
35# scripts that are the output of Autoconf when processing the Macro. You
36# need not follow the terms of the GNU General Public License when using
37# or distributing such scripts, even though portions of the text of the
38# Macro appear in them. The GNU General Public License (GPL) does govern
39# all other use of the material that constitutes the Autoconf Macro.
40#
41# This special exception to the GPL applies to versions of the Autoconf
42# Macro released by the Autoconf Archive. When you make and distribute a
43# modified version of the Autoconf Macro, you may extend this special
44# exception to the GPL to apply to your modified version as well.
45
46#serial 8
47
48AC_DEFUN([AX_C___ATTRIBUTE__], [
49 AC_CACHE_CHECK([for __attribute__], [ax_cv___attribute__],
50 [AC_COMPILE_IFELSE(
51 [AC_LANG_PROGRAM(
52 [[#include <stdlib.h>
53 static void foo(void) __attribute__ ((unused));
54 static void
55 foo(void) {
56 exit(1);
57 }
58 ]], [])],
59 [ax_cv___attribute__=yes],
60 [ax_cv___attribute__=no]
61 )
62 ])
63 if test "$ax_cv___attribute__" = "yes"; then
64 AC_DEFINE([HAVE___ATTRIBUTE__], 1, [define if your compiler has __attribute__])
65 fi
66])
This page took 0.0317 seconds and 4 git commands to generate.