$OpenBSD: patch-src_network_system_h,v 1.1.1.1 2007/10/01 21:37:28 simon Exp $
--- src/network_system.h.orig	Sun Sep 23 19:42:49 2007
+++ src/network_system.h	Sun Sep 23 19:43:00 2007
@@ -25,6 +25,7 @@
 // These includes work on Linux and should be fine on any other Unix-alike.
 // If not, this is the right place to conditionally include what is needed.
 #include <sys/ioctl.h>
+#include <sys/types.h>
 #include <sys/socket.h>
 #include <net/if.h>
 #include <netinet/in.h>