--- src/names.c.orig	Sat Sep 26 20:32:40 2009
+++ src/names.c	Mon Sep 28 11:34:10 2009
@@ -17,6 +17,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <unistd.h>
 #include <netinet/in.h>
 #include "globals.h"
 #include "names.h"
