I think that this is because Mir isn't linking protobuf in its library. We shouldn't have to have -l for something it includes, or if we do need it, it needs to be Requires in the pkgconfig file instead of Requires.private.
** Also affects: mir (Ubuntu) Importance: Undecided Status: New ** Changed in: url-dispatcher (Ubuntu) Status: Confirmed => Incomplete ** Changed in: mir (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1475619 Title: url-dispatcher ftbfs with GCC 5 Status in mir package in Ubuntu: New Status in url-dispatcher package in Ubuntu: Incomplete Bug description: see https://launchpadlibrarian.net/211818686/buildlog_ubuntu-wily-amd64.url-dispatcher_0.1%2B15.10.20150612-0ubuntu2~gcc5.1_BUILDING.txt.gz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1475619/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp