[libc-commits] [libc] [fuchsia][libc] Include missing macro definitions (PR #79639)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

Yes, I'd like to transition more build bots to the enable runtimes build mode. @petrhosek I suspect we should be able to cross compile from a linux host for a fuchsia target? Even if it's just builds without running tests.  Then we can work on playing with qemu to get the cross compiled test suites running. We could even have builds only for presubmit, then builds+tests for post submit.

https://github.com/llvm/llvm-project/pull/79639