From 64a0eebfa34f3f1669aa8a70fa3a1b6f3cf17f9e Mon Sep 17 00:00:00 2001
From: David Vossel <dvossel@digium.com>
Date: Mon, 18 Oct 2010 19:16:00 +0000
Subject: [PATCH] Fixes build error for systems not supporting IPV6_TCLASS.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@292155 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/netsock2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/main/netsock2.c b/main/netsock2.c
index d4a0f98738..80dc355eee 100644
--- a/main/netsock2.c
+++ b/main/netsock2.c
@@ -453,7 +453,7 @@ ssize_t ast_sendto(int sockfd, const void *buf, size_t len, int flags,
 
 int ast_set_qos(int sockfd, int tos, int cos, const char *desc)
 {
-	int res;
+	int res = 0;
 	int set_tos;
 	int set_tclass;
 	struct ast_sockaddr addr;
@@ -473,6 +473,7 @@ int ast_set_qos(int sockfd, int tos, int cos, const char *desc)
 		}
 	}
 
+#if defined(IPV6_TCLASS) && defined(IPPROTO_IPV6)
 	if (set_tclass) {
 		if (!ast_getsockname(sockfd, &addr) && ast_sockaddr_is_ipv6(&addr)) {
 			if ((res = setsockopt(sockfd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos)))) {
@@ -483,6 +484,7 @@ int ast_set_qos(int sockfd, int tos, int cos, const char *desc)
 			}
 		}
 	}
+#endif
 
 #ifdef linux
 	if (setsockopt(sockfd, SOL_SOCKET, SO_PRIORITY, &cos, sizeof(cos))) {