[Interest] Where does libGL get changed to absolute and how to stop?

[Marius Kittler]

As far as I know this is done within `defineTest(qtConfResolveLibs)` in 
`qtbase/mkspecs/features/qt_configure.prf`. Not sure how to disable this 
except from patching the function. I also needed to patch it for my mingw-w64 
builds.

Considering the code it seems to take `-L` flags into account. So maybe you 
can workaround the problem by using `-L` . Or just specify the full patch 
yourself. (I assume your problem is that the library is resolved to the wrong 
full path but using full paths in general would work.)