CMakeLists.txt

[StachuJemiola]

I think there should be "option(USE_QT5 "QT5" OFF)" instead of "option(USE_QT5 OFF)" in CMakeLists.txt.

[robertknight]

Indeed, according to the documentation the syntax is option(VARIABLE <description> <initial value>) so the second argument should be something like 'Build with Qt 5'. I don't have a system set up to test just at the moment, if you wouldn't mind creating a pull request I'd be happy to accept.

[romanzoller]

It looks like this was fixed by PR #7