[libc-commits] [libc] [libc][errno] remove mips+sparc specific errnos (PR #92798)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

> What's the ground truth for supported platforms? Is it https://libc.llvm.org/#platform-support?

Yes, though we should add to that list ARM (32b), RISCV (64b) as officially supported and tested. GPUs, and 32b RISCV are tested in more limited configurations (staging CI, embedded targets).

https://github.com/llvm/llvm-project/pull/92798