$NetBSD$

--- bhm.cpp.orig	2008-05-26 09:43:52.000000000 +0000
+++ bhm.cpp
@@ -13,6 +13,9 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
+#if defined (__NetBSD__)
+#include <netinet/in_systm.h>
+#endif
 #include <netinet/ip.h>
 
 #include "postal.h"
