From 009a41300f41c65e7439d7874790185dcd2cb077 Mon Sep 17 00:00:00 2001
From: Jon Dugan <jdugan@x1024.net>
Date: Wed, 8 Sep 2010 20:33:54 +0000
Subject: [PATCH] if IPV6_TCLASS isn't defined do something reasonable

---
 src/iperf_api.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/iperf_api.c b/src/iperf_api.c
index f2d6f1e..83b7629 100644
--- a/src/iperf_api.c
+++ b/src/iperf_api.c
@@ -1388,10 +1388,15 @@ iperf_init_stream(struct iperf_stream *sp, struct iperf_test *test)
     /* Set IP TOS */
     if ((opt = test->settings->tos)) {
         if (test->settings->domain == AF_INET6) {
+#ifdef IPV6_TCLASS
             if (setsockopt(sp->socket, IPPROTO_IPV6, IPV6_TCLASS, &opt, sizeof(opt)) < 0) {
                 i_errno = IESETCOS;
                 return (-1);
             }
+#else
+        i_errno = IESETCOS;
+        return (-1);
+#endif
         } else {
             if (setsockopt(sp->socket, IPPROTO_IP, IP_TOS, &opt, sizeof(opt)) < 0) {
                 i_errno = IESETTOS;