[libc-commits] [libc] [libc] Unify gettime implementations (PR #65383)

[Guillaume Chatelet via libc-commits]

gchatelet wrote:

> added @gchatelet here as I'll try to also change the bazel files before merging this PR.

`clock_gettime` and `gettimeofday` are not part of the Bazel build so this is fine to submit. Thx for checking!

https://github.com/llvm/llvm-project/pull/65383