Qt 4.8.6 windows 7 default wrong style

[mero]

Hello,

I've changed qt 4.8.5 (mingw) to 4.8.6 (mingw) on windows 7 64 and my program looks like from xp
Where I need to change default "style" parameter look as default windows 7 ?
I think this is Qt bug, maybe I need to change something in Qt source but where ?

Adding parameter -style windowsvista does nothing, like this style does not exist
Also all examples looks like style xp so maybe I need to recompile whole Qt on windows 7 to looks like native ?

I found this bug reported: https://bugreports.qt-project.org/browse/QTBUG-38706