Index: Makefile
===================================================================
RCS file: /home/ncvs/ports/net/libdnet/Makefile,v
retrieving revision 1.27
diff -u -r1.27 Makefile
--- Makefile	12 Mar 2007 17:51:53 -0000	1.27
+++ Makefile	21 Jun 2007 01:17:58 -0000
@@ -27,6 +27,10 @@
 MAN8=	dnet.8
 .endif
 
+.if !exists(/dev/bpf0)
+BROKEN=	Does not build properly without /dev/bpf0.
+.endif
+
 .include <bsd.port.pre.mk>
 
 .if !defined(LIBDNET_SLAVE)