http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52645
--- Comment #1 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-03-21 13:09:44 UTC --- This is from my Tru64 UNIX removal patch. Could you please check if IPPROTO_IPV6 and/or IPV6_MULTICAST_IF are defined in any system header or if this another case of partial IPv6 support? Thanks. Rainer