From 1bf6c3ca61da3ad75c0e344532769ad23a95037e Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Wed, 16 Apr 2014 09:04:25 +0000
Subject: [PATCH] *** empty log message ***

---
 winsup/cygwin/release/1.7.30 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/winsup/cygwin/release/1.7.30 b/winsup/cygwin/release/1.7.30
index 400216469..0bd206a40 100644
--- a/winsup/cygwin/release/1.7.30
+++ b/winsup/cygwin/release/1.7.30
@@ -9,6 +9,10 @@ What's new:
 What changed:
 -------------
 
+- Windows defines the IPV6_TCLASS option, but when using it in setsockopt
+  it returns WSAENOPROTOOPT.  Cygwin now ignores this error condition and
+  returns a fake success to the application, just as with IP_TOS for years.
+
 
 Bug Fixes
 ---------