New comment by oreo639 on void-packages repository

https://github.com/void-linux/void-packages/pull/34902#issuecomment-1267923092

Comment:
> I think we could use create_wrksrc in gcc and libgccjit

Alright. Good idea.

> modifying cross-* packages for that would probably require changes to the void-cross build style, so that could be done in a separate PR.

Those already use `create_wrksrc=yes` so that won't be necessary.