Thanks for the input and posts about progress. What's related to the helloqt5 project I'll try to fix when I have time to get into this again (in few weeks, I think). The best approach, I think, is to create a wrapper shell script for Qt5 builds that sets the LD_LIBRARY_PATH. Please let us know if you figure out what needs to be changed to get QML imports working.

And I'm not anymore as pessimistic about getting QtCreator to work with this - it won't be as easy as with Qt4, but I hope building debs at least can be made straightforward. I'll report on this when I get around to it again.