fanquake

> Looks like this also fails on macOS on GHA. Pretty sure that job should be rerun, because it's failing in the brew install stage.

> Does anyone know what version(s) of clang can be expected to be available on macOS normally? GIven our minimum supported macOS (11.x), you could run anything from Xcode 12.5+...

> I've the approach in mind and will force push the update by the end of this month. Moved to draft for now.

For backport or no?

> and OSS-Fuzz? So won't this break as soon as we have code that requires libstdc++-16, given that OSS-Fuzz is still pinned to 15? Are there no other projects using...

> So I'd say to close this and bump to 16 wholesale? I think generally, that would be more straightforward, then supporting varying compiler + std lib combinations, and seems...

Based on #21778, so the flag is usable in release builds.

Rebased, but drafted while based on #21778.

Binary size comparison for `arm64-apple-darwin` of a Guix build of master (be100cf4c77a) vs this PR (6213ac97c6b5): | Binary | master | PR | | ------ | ------- | --- |...

@theuni do you have any thoughts here?