From d9b59693461f6f092d1848278c2d70030aefe73c Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Fri, 6 Nov 2009 13:09:26 -0800
Subject: [PATCH] buffer: only define _XOPEN_SOURCE ifndef

---
 src/include/buffer.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/include/buffer.h b/src/include/buffer.h
index af6a9f4034b98..ec1ffbc823771 100644
--- a/src/include/buffer.h
+++ b/src/include/buffer.h
@@ -15,7 +15,10 @@
 #ifndef __BUFFER_H
 #define __BUFFER_H
 
-#define _XOPEN_SOURCE 600
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 600
+#endif
+
 #include <stdlib.h>
 #ifdef DARWIN
 
-- 
2.39.5