$OpenBSD: patch-src_ifstat_openbsd_c,v 1.1 2013/11/25 22:06:40 sthen Exp $
--- src/ifstat_openbsd.c.orig	Mon Nov 25 15:05:36 2013
+++ src/ifstat_openbsd.c	Mon Nov 25 15:06:02 2013
@@ -27,6 +27,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <net/if.h>
+#include <net/if_var.h>
 #include <fcntl.h>
 #include <kvm.h>
 #include <limits.h>
