[libc-commits] [libc] [libc] Fix missing UINTMAX_WIDTH (PR #87092)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

More context:

```
$ git branch -a --contains bf7d997 | grep origin/release
  remotes/origin/release/14.x
  remotes/origin/release/15.x
  remotes/origin/release/16.x
  remotes/origin/release/17.x
  remotes/origin/release/18.x
```
shows that https://github.com/llvm/llvm-project/commit/bf7d9970ba0ac5ecfa1a469086f5789de5c94e3f first landed in 14.x (or exists there, don't know if it was backported earlier). So clang's `<stdint.h>` did not define `UINTMAX_WIDTH` until clang-14, which is the clang version the failed buildbots are running.

https://github.com/llvm/llvm-project/pull/87092