--- Net2/net/if_ethersubr.c	2018/04/24 18:04:02	1.1
+++ Net2/net/if_ethersubr.c	2018/04/24 18:13:15	1.1.1.2
@@ -89,7 +89,9 @@ ether_output(ifp, m0, dst, rt)
 	short type;
 	int s, error = 0;
  	u_char edst[6];
+#ifdef INET
 	struct in_addr idst;
+#endif
 	register struct mbuf *m = m0;
 	struct mbuf *mcopy = (struct mbuf *)0;
 	register struct ether_header *eh;