Building compiler front-end from GitHub source

what does "make" and "make check-all" produce as output?

I've should create a log on my next try and let you know what it says. But this will be a huge LOG-File.

You may be missing some pre-requisit, or have too new of something?

I'll check that too.

Thanks for your response and best regards,

Marc

If it's that huge, maybe cutting it down to the last few bits would be
useful? Like I said, I don't know what this project does with regards to
building, etc.