[libc-commits] [libc] [libc] Support %lc in printf (PR #169983)

[Joseph Huber via libc-commits]

jhuber6 wrote:

The printf headers are supposed to be header-only, this PR makes them no longer header only with several dependencies on internal functions. I'm going to go ahead and revert since it's late for me, but you should just open a reland PR after you've made the necessary changes so this interface remains header only.

https://github.com/llvm/llvm-project/pull/169983