--- quake2-r0.16.1.orig/src/linux/q_shlinux.c	2002-02-09 23:09:23.000000000 +0100
+++ quake2-r0.16.1.n/src/linux/q_shlinux.c	2008-05-17 02:57:53.000000000 +0200
@@ -17,6 +17,9 @@
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
+#if defined(__linux__)
+#define _GNU_SOURCE 1
+#endif
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>