Thank you, Ian! I was not able to build it proper using your advice, though. If I understand it correctly, you suggest to specify -ltelepathy-qt4-farsight before -ltelepathy-qt4? I get the same error messages that way. Should I fix my -l options ordering further? If so, then how? 2012/4/24 Ian Lance Taylor <iant@xxxxxxxxxx>: > Евгений Фарфель <jenfa@xxxxxxxxxxx> writes: > >> -ltelepathy-qt4 >> -ltelepathy-qt4-farsight -ltelepathy-glib > >> /home/user/workspace/playbook_prefix/lib/libtelepathy-qt4-farsight.so: >> undefined reference to `Tp::DBusProxy::busName() const' > >> All those symbols should be present in libtelepathy-qt4 > > > The order of -l options matters. > > Ian