Build script documentation: About Scons 3.0.0 
Build script documentation: About Scons 3.0.0 

Warn that Mesa3D is not yet compatible with it.
Provide info that there is a minimal patch included in this repository that makes it work.
A more complete patch is available [here](https://patchwork.freedesktop.org/series/30595/)
pal1000/mesa-dist-win,pal1000/mesa-dist-win