[libcxx-commits] [libcxx] [libc++] Conditionally declare `lgamma_r` as noexcept (PR #156547)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 requested changes to this pull request.

I think https://github.com/llvm/llvm-project/pull/153631#issuecomment-3189508954 is rather what we should go for.

https://github.com/llvm/llvm-project/pull/156547