$OpenBSD: patch-dnstop_c,v 1.7 2012/10/05 19:04:46 gonzalo Exp $
--- dnstop.c.orig	Mon Jun 11 17:17:16 2012
+++ dnstop.c	Thu Oct  4 18:17:07 2012
@@ -46,6 +46,7 @@ static const char *Version = "20120611";
 #include <netdb.h>
 
 #ifdef HAVE_NET_IF_PPP_H
+#include <net/ppp_defs.h>
 #include <net/if_ppp.h>
 #define PPP_ADDRESS_VAL       0xff	/* The address byte value */
 #define PPP_CONTROL_VAL       0x03	/* The control byte value */