[seed] os module: oops! other GNU extensions were in use; reenable these

[Tim Horton <hortont src gnome org>]

commit 78e4742fe907d08348a8c93c098761ec57b32bd6
Author: Tim Horton <hortont424 gmail com>
Date:   Thu Dec 31 05:44:51 2009 -0500

    os module: oops! other GNU extensions were in use; reenable these

 modules/os/seed-os.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/modules/os/seed-os.c b/modules/os/seed-os.c
index ad2dfc1..9b32718 100644
--- a/modules/os/seed-os.c
+++ b/modules/os/seed-os.c
@@ -17,6 +17,8 @@
  * Copyright (C) Robert Carr 2009 <carrr rpi edu>
  */
 
+#define _GNU_SOURCE
+
 #include "../../config.h"
 
 #include <unistd.h>