[PATCH] Fix build on systems without IPV6_TCLASS support

The wrong variable name was used.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 src/eXtl_udp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: libeXosip2-3.6.0/src/eXtl_udp.c
===================================================================
--- libeXosip2-3.6.0.orig/src/eXtl_udp.c
+++ libeXosip2-3.6.0/src/eXtl_udp.c
@@ -178,7 +178,7 @@
 		res = setsockopt(udp_socket, IPPROTO_IPV6, IPV6_TCLASS,
 			(SOCKET_OPTION_VALUE)&tos, sizeof(tos));
 #else
-		retval = setsockopt(udp_socket, IPPROTO_IPV6, IP_TOS,
+		res = setsockopt(udp_socket, IPPROTO_IPV6, IP_TOS,
 			(SOCKET_OPTION_VALUE)&tos, sizeof(tos));
 #endif
 	}