[libc-commits] [libc] [libc] Use global preprocessor definitions for libc tuning (PR #71938)

[Guillaume Chatelet via libc-commits]

gchatelet wrote:

> I'm not necessarily against setting flags globally, but we should do it in a way that means we don't need extra cmake logic for each flag. We should see about creating a list of config options and setting them as compile options directly.

Good point.

We discussed option exploration with @lntue a few days ago. I think it would be profitable to have a consistent way to explore all flag combinations in a principled way for testing purposes. Let's create an RFC to discuss the details.

https://github.com/llvm/llvm-project/pull/71938