6.7/API review: QIcon theme API clashes with <windows.h>

#include <QtGui>

int main(int argc, char *argv[])
{
    qDebug() << qVersion() << QIcon::ThemeIcon::DocumentProperties;
    return 0;
}

does not compile on WIndows:

..\icontest\main.cpp(5): error C2039: 'DocumentPropertiesW': is not a member 
       of 'QIcon::ThemeIcon'
C:\dev\qt-67\install-qt-67\include\QtGui/qicon.h(25): note: see declaration of 'QIcon::ThemeIcon'

Reason being that <QtGui> pulls in <windows.h> via OpenGL / wgl.h (qopengl.h:13) and there is a (printer) Win32 API function DocumentProperties() which has a corresponding UNICODE define
"#define DocumentProperties DocumentPropertiesW" which then triggers.