[libc-commits] [libc] [libc] Add LIBC_NAMESPACE_HIDDEN_DECL macro (PR #97109)

[Joseph Huber via libc-commits]

jhuber6 wrote:

So, the patch where I prefer `-fvisibility=hidden` is at https://github.com/llvm/llvm-project/pull/97123. I believe this is much easier to manage than updating every single namespace declaration, specifically because all the normal entrypoints are actually inside of a namespace.

https://github.com/llvm/llvm-project/pull/97109