[libcxx-commits] [libcxx] [libc++] Simplify how the global stream tests are written (PR #66842)

[Martin Storsjö via libcxx-commits]

mstorsjo wrote:

> Ahh, I see. It looks like it's also the target of a TODO. Concretely is this blocking any of your work?

Practically, no. In addition to `echo`, IIRC we have tests that rely on having the executable `cp` in some places as well anyway, and possibly a few other unixy commands.

The issue had me scratching my head for quite a while, but I realized I could fix the issue by manually adding `C:\Program Files\Git\usr\bin` to the head of my `$PATH`. Then when I tried to dig in more on the issue, GitHub rolled out new images to their runners, where that mystery `echo` executable no longer is in `$PATH` either, so I'm unable to figure out what really was up (and it's not possible to request a run with the old base image).

https://github.com/llvm/llvm-project/pull/66842