[libc-commits] [libc] [libc][docs] add note on gcc overlay release build (PR #89314)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

link to https://github.com/llvm/llvm-project/issues/60481 in the commit description?

I think we should just fix that rather than document the breakage though.

https://github.com/llvm/llvm-project/pull/89314