Empty window when building static QtQuick application

[justAnoob]

I got a static build of Qt 5.2.1.
When i compile a simple hello world application (the one thats created when ceating a new QtQuick application) it works perfectly fine but only on the machine i build it with. On any other machine there is just an empty window.
Now thats pretty confusing for me.
I use a Qt resource file with the main.qml in it and therefore changed
@QtQuick2ApplicationViewer::setMainQmlFile(const QString &file);@

to use
@setSource(QUrl(d->mainQmlFile));@

instead of
@setSource(QUrl::fromLocalFile(d->mainQmlFile));@

and in the main.cpp:
@viewer.setMainQmlFile("qrc:/qml/main.qml");@

So its really just the simple hello world.
The behavior that its working on the machine i build it, but not on any other with really confuses me.
I tried finding a solution via google but only found alot of problems with Qt versions prior 5.2.
So are there any extra steps to do in order to build QtQuick apps static?