[libcxx-commits] [libcxx] [libc++] Avoid guard variables for the error_category singletons (PR #231282)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 approved this pull request.

Quite unfortunate that it doesn't optimize away, but I also don't see an easy way to get the compiler to do it.

https://github.com/llvm/llvm-project/pull/231282