[libcxx-commits] [libcxx] [AIX] cxx_std_23 is currently not a known feature to ibm-clang (PR #66952)

[Jake Egan via libcxx-commits]

jakeegan wrote:

> What version of Clang are you folks using on the AIX builders?

For upstream, we use a version of clang 15. For downstream (where we see this issue), we use ibm-clang 17.1.2.

> LGTM but we should figure out why `cxx_std_23` doesn't work. I suspect that's a CMake problem if passing `-std=c++23` actually works.

Thanks! Yes, this is just a temporary fix, but we plan on investigating further.

https://github.com/llvm/llvm-project/pull/66952