alohas this commit http://quickgit.kde.org/?p=bluez-qt.git&a=commit&h=7e05a4a4fae19550b1dcc11e5a363a0884b5f8d8 removed the soversion6 which is needed as the present API is incompatible with the one released as 5.3.x needs to be brought back. kthxbai