Author: Stefan Praszalowicz <stefan.praszalowicz@avedya.com>
Description: Rather than fail on IPv4 only networks when seeing an IPv6 DNS record, just give a warning (Closes: #500676).
Bug-Debian: 500676.

Index: client.c
===================================================================
--- client.c
+++ client.c
@@ -178,8 +178,17 @@
 		struct sockaddr *sa = (struct sockaddr *)&p->addr->ss;
 
 		if ((p->query->fd = socket(p->addr->ss.ss_family, SOCK_DGRAM,
-		    0)) == -1)
-			fatal("client_query socket");
+		    0)) == -1) {
+
+			if (errno == EAFNOSUPPORT) {
+				log_warn("client_query socket");
+				client_nextaddr(p);
+				set_next(p, error_interval(p, 0));
+				return (-1);
+			}
+			else
+				fatal("client_query socket");
+		}
 		if (connect(p->query->fd, sa, SA_LEN(sa)) == -1) {
 			if (errno == ECONNREFUSED || errno == ENETUNREACH ||
 			    errno == EHOSTUNREACH) {