Wrong required minimum Qt version ?

[Alexander Neundorf]

Hi,

my build of kate fails with the following error:
error: ‘class QApplication’ has no member named ‘desktopFileName’

This has been added to QApplication in 5.7, but my OpenSUSE Leap has Qt 5.6.

The top level CMakeLists.txt states Qt 5.4 is minimum required version.

So, which is wrong ?
The minimum required version (then I couldn't build against the system Qt5 
anymore :-/ ) or the use of desktopFileName ?

Alex