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

[Louis Dionne via libcxx-commits]

ldionne 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.

Ok, great! Could you folks update your upstream compiler to 16? We're about to drop support for Clang 15 since Clang 17 has been released.

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