[libc][wctype] Add cmake flag for configuring wctype implementation used (#170531)
#170525
Based on our
[RFC](https://discourse.llvm.org/t/rfc-libc-wctype-header-implementation/88941/10),
we are starting the implementation of the wctype header with C.UTF8
support. This implementation will increase the binary size by
approximately ~70KB, so this PR introduces a flag so that this is
configurable, allowing the user to choose between a simple ASCII
implementation or the full Unicode one.
NOKEYCHECK=True
GitOrigin-RevId: d8b43edf552840e59a22a7f3cc332697bd434782
2 files changed
