Re: help validating a modified compiler?

Speaking for myself: I have not validated locally for quite a while. I just rely on CI.

I've confirmed that a fresh checkout doesn't validate. Is anyone else willing to try? If it's a problem that only I have, I'm reluctant to open an issue.

You can mark an MR as a "Draft" to avoid triggering a review.

How is it so marked? Put the word "Draft" in the title?

Instead of validating locally, I tend to just run the testsuite on the built GHC.

I'll give that a try, thanks. N