--- util-linux-2.13-pre1/fdisk/fdisk.c.ark	2005-08-09 17:59:38.000000000 +0200
+++ util-linux-2.13-pre1/fdisk/fdisk.c	2005-08-09 17:59:49.000000000 +0200
@@ -8,6 +8,8 @@
  * (at your option) any later version.
  */
 
+#define _GNU_SOURCE 1
+
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>