[libcxx-commits] [libcxx] [libc++] Allow the use of extensions in the implementation (PR #79532)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@mordante @philnik777 I'd be fine to wait until after we have `18.1.0` released (maybe 1-2 weeks after that) before we actually merge this. At this point we've been waiting for long enough that a few weeks is not going to make much of a difference.

For what it's worth, I have been deploying LLVM 18 on a large code base internally and didn't see any issues around the use of these extensions, so I am not too concerned at this point. But I agree that a full point release would make sense before we actually merge this.

https://github.com/llvm/llvm-project/pull/79532