From 6ef735a5fdd105369b886edf98c868bc6c68b95f Mon Sep 17 00:00:00 2001
From: Marko Kreen <markokr@gmail.com>
Date: Wed, 9 Sep 2009 20:34:59 +0300
Subject: [PATCH] AC_GNU_SOURCE is broken, define _GNU_SOURCE unconditionally

---
 m4/usual.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/usual.m4 b/m4/usual.m4
index 3489e1e..c06c78f 100644
--- a/m4/usual.m4
+++ b/m4/usual.m4
@@ -35,7 +35,7 @@ dnl
 AC_DEFUN([AC_USUAL_PROGRAM_CHECK], [
 AC_PROG_CC
 AC_PROG_CPP
-AC_GNU_SOURCE
+AC_DEFINE([_GNU_SOURCE], [1], [Glibc requires it.])
 dnl Check if compiler supports __func__
 AC_CACHE_CHECK([whether compiler supports __func__], pgac_cv_funcname_func,
   [AC_TRY_COMPILE([#include <stdio.h>], [printf("%s\n", __func__);],
-- 
2.39.5