From 9e1b10b027308894d484c154658933eb415eb0c4 Mon Sep 17 00:00:00 2001
From: David Klempner <klempner@imsanet.org>
Date: Tue, 3 Feb 2015 18:36:37 -0800
Subject: [PATCH] undef and endif aren't the same thing

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

diff --git a/src/core/support/cpu_linux.c b/src/core/support/cpu_linux.c
index e0df699217b..ad82174894b 100644
--- a/src/core/support/cpu_linux.c
+++ b/src/core/support/cpu_linux.c
@@ -33,7 +33,7 @@
 
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE
-#undef  /* _GNU_SOURCE */
+#endif  /* _GNU_SOURCE */
 
 #include <grpc/support/port_platform.h>