Hello.
While building Qt and Qt-based software on windows, it seems important to set MINGWDIR environment variable. But i'm not very pleased with doing something like 'voodoo magic', without knowing the reasons. Unfortunately, searching google reveals that it's a lot of tutorials and examples that sets MINGWDIR, but no documentation about this environment variable itself. Is it required by mingw32-make? Is it required by Qt? Is it not required at all? Maybe some guru knows WHAT exactly this environment variable is for and can point me to some mingw/gcc documentation or any article about it?