Prelink and libGL.so : a tip

[Leon Bottou]

> unqualified comment without digging further into it ...
> are you sure you need to create a stub for every needed gl function? i'd
> rather think that you could resolve all functions in a bulk when one of
> the gl classes is instantiated.

I chose to do it without changing the Qt files.
The patch just contains an additional file glstubs.cpp
that "replaces" libGL.so.

- L.