$OpenBSD: patch-rfc1035_rfc1035mksocket_c,v 1.1 2012/01/23 09:14:15 giovanni Exp $
--- rfc1035/rfc1035mksocket.c.orig	Wed Dec 14 17:29:16 2011
+++ rfc1035/rfc1035mksocket.c	Wed Dec 14 17:30:54 2011
@@ -27,9 +27,8 @@ int	rfc1035_mksocket(int sock_type, int sock_protocol,
 	{
 #ifdef IPV6_V6ONLY
 
-		if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
-			       (char *)&on, sizeof(on)) < 0)
-			perror("setsockopt IPV6_V6ONLY");
+		(void)setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
+			       (void *)&on, sizeof(on));
 #endif
 
 		return (s);
