--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -, +, @@ 
--- src/core/xmpp-servers.c
+++ src/core/xmpp-servers.c
@@ -18,5 +18,6 @@ 
 */
+#define _GNU_SOURCE
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <string.h>