https://bugzilla.redhat.com/show_bug.cgi?id=1208911
--- Comment #34 from Kevin Kofler kevin@tigcc.ticalc.org --- It looks like there is actually a Qt 5 interface now: http://wiki.lazarus.freepascal.org/Qt5_Interface but I did not find it yesterday because it is not linked from anywhere in the Free Pascal wiki. It is also not packaged in Fedora yet, I see only a qt4pas package, no qt5pas.
I think packaging doublecmd will have to start from taking care of the FPC and Lazarus packaging.