@@ -9,14 +9,15 @@
  * the packaging of this file.
  */
 
 #import "config.h"
 
-#import <objc/objc-api.h>
-
+#define _GNU_SOURCE
 #import <stdio.h>
 #import <stdlib.h>
+
+#import <objc/objc-api.h>
 
 #import "OFExceptions.h"
 
 #if defined HAVE_SEL_GET_NAME
 #define SEL_NAME(x) sel_get_name(x)