[libcxx-commits] [libcxx] [libcxxabi] [libunwind] [libcxx][CI] Use lld for everything in the ARM picolib builds (PR #158320)

[David Spickett via libcxx-commits]

DavidSpickett wrote:

>I think building with lld makes the most sense here.

It matches what Arm is doing with picolibc, and I think we always intended to use lld anyway but didn't realise we had to enable it when testing. And a nice bonus is that since we can install lld anywhere, this "ARM" build can now be portable to other hosts.

The MacOS builds failed but as nothing else failed, and these changes are isolated to picolibc builds, I'm going to merge this now.

https://github.com/llvm/llvm-project/pull/158320