[libcxx-commits] [libcxx] [libcxx] Passthrough the necessary CMake variables to benchmarks (PR #116644)

[Petr Hosek via libcxx-commits]

petrhosek wrote:

> _ping_ is this ready to land?

I need an approval from one of the libc++ reviewers.

https://github.com/llvm/llvm-project/pull/116644