--- src/lxc/tools/lxc_console.c.orig	2016-10-10 06:19:46.341945026 +0200
+++ src/lxc/tools/lxc_console.c	2016-10-10 06:20:20.667349922 +0200
@@ -21,9 +21,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#define _GNU_SOURCE
 #include <stdio.h>
-#undef _GNU_SOURCE
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>