I was just hit by this, so figured I'd pass it along in case others are too. See https://sourceware.org/bugzilla/show_bug.cgi?id=18529 for more info. Previously getaddrinfo() and friends were exposed with; _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE but now you need: _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600 I've alerted the man-pages upstream folks so hopefully the man pages will be updated as well. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion@xxxxxxxx Boulder, CO 80301 http://www.nwra.com -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct