From: Ross Lagerwall <rosslagerwall@gmail.com>
Date: Thu, 22 Dec 2011 07:45:53 +0000 (+0200)
Subject: Don't redefine _GNU_SOURCE if it's already defined.
X-Git-Tag: v3.2.3rc1~250
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=667d75d059384b12a4cd167a9aebc0c1c3057ef4;p=python

Don't redefine _GNU_SOURCE if it's already defined.
---

diff --git a/Modules/_posixsubprocess.c b/Modules/_posixsubprocess.c
index 4e38bbe63f..e8aedeb9fc 100644
--- a/Modules/_posixsubprocess.c
+++ b/Modules/_posixsubprocess.c
@@ -1,7 +1,7 @@
 /* Authors: Gregory P. Smith & Jeffrey Yasskin */
 #include "Python.h"
-#ifdef HAVE_PIPE2
-#define _GNU_SOURCE
+#if defined(HAVE_PIPE2) && !defined(_GNU_SOURCE)
+# define _GNU_SOURCE
 #endif
 #include <unistd.h>
 #include <fcntl.h>