oddi, according to your pasted log your actual problem is the MKSPEC again:

Code:
Could not find mkspecs for your QMAKESPEC(win32-g++) after trying:
        G:/compile_mame/Msys64/mingw64/share/qt4\mkspecs

Is this the right place for it?


A mind is like a parachute. It doesn't work unless it's open. [Frank Zappa]