http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52645
--- Comment #5 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-03-21 16:31:41 UTC --- > --- Comment #4 from dave.anglin at bell dot net 2012-03-21 16:22:38 UTC --- > On 3/21/2012 11:04 AM, ro at CeBiTec dot Uni-Bielefeld.DE wrote: >> Ok, but at least struct sockaddr_in6 is present in/from<netinet/in.h>, >> otherwise the HAVE_INET6 configure test would fail? > > Not that I see. I see now what's wrong: I'm an idiot and removed the HAVE_INET6 check together with defined (IPV6_MULTICAST_IF). The former is clearly necessary, the latter probably not. Will fix. Rainer