QtWidget Windows Vista Style - MinGW

I found an error in an if conditional, where it did not return the value of sz.

Because of this problem I could never compile qtbase-source.

Error:
@1872,9
#ifndef QT_NO_MENUBAR
case CT_MenuBarItem:
if (!sz.isEmpty()) //This Error
sz += QSize(windowsItemHMargin * 5 + 1, 5);
return sz;
break;
#endif

Solution:

#ifndef QT_NO_MENUBAR
case CT_MenuBarItem:
if (!sz.isEmpty())

break;
#endif