From 9db67cbfb0c02e445360c404361d61ec2ea151ee Mon Sep 17 00:00:00 2001
From: David Klempner <klempner@imsanet.org>
Date: Tue, 3 Feb 2015 18:34:46 -0800
Subject: [PATCH] We should ifdef check the define of _GNU_SOURCE

---
 src/core/support/cpu_linux.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/support/cpu_linux.c b/src/core/support/cpu_linux.c
index 508ebfaebde..e0df699217b 100644
--- a/src/core/support/cpu_linux.c
+++ b/src/core/support/cpu_linux.c
@@ -31,7 +31,9 @@
  *
  */
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#undef  /* _GNU_SOURCE */
 
 #include <grpc/support/port_platform.h>