$OpenBSD: patch-dnstop_c,v 1.5 2011/03/03 01:03:37 sthen Exp $
--- dnstop.c.orig	Thu Jan 27 16:57:28 2011
+++ dnstop.c	Thu Mar  3 01:01:55 2011
@@ -46,6 +46,7 @@ static const char *Version = "20110127";
 #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 */
