[libcxx-commits] [libcxx] [libc++][z/OS] Need to define _LIBCPP_HAS_UNICODE to 0 for EBCDIC (PR #119244)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Supporting EBCDIC and z/OS requires a lot more changes than just this unless I am mistaken. I know you folks tried upstreaming a lot of that support a few years ago but AFAICT we never got consensus for moving forward with those changes, which were quite involved. AIX doesn't have the same challenges and we're happy to support it upstream.

I would like to have a broader discussion about EBCDIC support in libc++ before we start cherry-picking small changes like this into our codebase -- that ask is consistent with what we do for other platforms that are not "officially supported".

https://github.com/llvm/llvm-project/pull/119244