in the last weeks I have been working on a QtCreator/QMake exporter for the IntroJucer. It is already working quite well and I regularly use it do code my plugins on Linux and Windows. The code is available at GitHub if you want to give it a try: https://github.com/seebk/JUCE
Please report back if you experienced any trouble or if everything worked fine. Maybe it can become part of the official JUCE soon?