[Interest] Qt 5.8.0 RC build under windows

[Prav]

Hello, Maurice.

> However, when compiling Qt there are config tests verifying your
> environment is compatible against it. If not (for instance you do
> not have the correct SDK), those features will be turned off.
That seems very interesting features I never heard of. Can you explain little bit more? Where is the this tests are located and how this tests inform about results?