Finetuning the PyQt build, now also having QtGui

The first builds didn't have QtGui, as there where problems around X11
material. Now, this has been changed and QtGui build, however, the
following items can't be linked properly:

- The QSound class appears to be missing from linkage
- The Keyboard modifier functions appear to be missing

GIS purposes, there is no immediate need for QSound to be working. The
keyboard modifiers might be missing since Android uses a software
keyboard, possibly not being able to discern these modifiers through
these methods.