Build failed for GNAT 2021

[stigbert]

The build (win32\build.cmd) is depending on Environment Variable GNATDIR which was not set on my system. After fixing that I still a problem: imported project file "../.build/projects/aws_lal" not found.
(I'm new to aws, but I've used Ada for 34 years)

[TurboGit]

Yes, recently AWS had new dependencies and the helper script to build on Windows has not been updated. One option is to use the standard build procedure which requires MSYS on Windows.

[stigbert]

Can have some advice on how to do that, please? I haven't got a clue.
Regards,
Petter@comp.lang.ada