[libcxx-commits] [libcxx] [libc++][math] Generalize workaround for UCRT to `signbit` (PR #212398)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 commented:

I'm really not a big fan. This adds an incredible amount of additional code (as-in doubling the amount of code per math function we have to maintain) for supporting a single libc, which will inevitably have to implement this anyways.

https://github.com/llvm/llvm-project/pull/212398