Created attachment 603442 [details, diff]
Guile 3.0.0 has been released with a long list of changes and probably some backward compatibility problems.
- It left a stack direction problem in continuations.c on architectures where the stack grows up, for which a patch is attached.
- It adds JIT support for some architectures but not others, which should be enabled through IUSE=jit (it can be left to automatic detection, too).
- The prebuilt issue from bug #676468 was not fixed in this release.
This would also require a sub-SLOT (or better yet, a normal SLOT, see bug #689408).