--- unix/qsh_unix.c.old	2008-03-24 09:17:53.586417612 +0500
+++ unix/qsh_unix.c	2008-03-24 09:18:56.983415106 +0500
@@ -17,6 +17,7 @@ along with this program; if not, write t
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
+#define _GNU_SOURCE
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>