--- pcap_inet.c.orig	2004-02-09 14:01:54.000000000 +0100
+++ pcap_inet.c	2004-02-09 14:02:02.000000000 +0100
@@ -150,7 +150,7 @@
 
 int
 pcap_lookupnet(device, netp, maskp, errbuf)
-	register char *device;
+	register const char *device;
 	register u_int *netp, *maskp;
 	register char *errbuf;
 {