$NetBSD: patch-ab,v 1.2 2005/12/18 18:44:09 joerg Exp $

--- bing.c.orig	1995-07-20 23:45:32.000000000 +0000
+++ bing.c
@@ -155,7 +155,7 @@ static char rcsid[] = "bing.c,v 1.16 199
 #include <sys/socket.h>
 #include <sys/file.h>
 #include <sys/time.h>
-#include <sys/signal.h>
+#include <signal.h>
 
 #include <netinet/in_systm.h>
 #include <netinet/in.h>
@@ -1221,7 +1221,7 @@ int main(argc, argv)
 	int argc;
 	char **argv;
 {
-	extern int errno, optind;
+	extern int optind;
 	extern char *optarg;
 	struct protoent *proto;
 	struct in_addr ifaddr;