[libcxx-commits] [libcxx] [libc++] Make __config_site modular (PR #135432)

[Ian Anderson via libcxx-commits]

ian-twilightcoder wrote:

I think this is an unrelated error.
```
  # | /Users/runner/work/llvm-project/llvm-project/build/generic-cxx03/libcxx/test-suite-install/include/c++/v1/__algorithm/comp.h:30:1: error: inline variables are a C++17 extension [-Werror,-Wc++17-extensions]
```

https://github.com/llvm/llvm-project/pull/135432