[libcxx-commits] [libcxx] [libc++] Refactor the Windows and MinGW implementation of the locale base API (PR #115752)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@mstorsjo This patch seems to be in a functional shape now. What would be the level of ABI compatibility you think we need to go for?

The minimum I can see would be providing the old symbols in a `.cpp` file to avoid changing the set of exported symbols. I assume back-deployment is not required, so we don't need to also do complicated stuff based on the deployment target to allow back-deploying?

https://github.com/llvm/llvm-project/pull/115752