[libcxx-commits] [libcxx] [libcxx] Only use `copy_file_range` on Linux or FreeBSD targets (PR #184373)

[Louis Dionne via libcxx-commits]

ldionne wrote:

The underlying difficulty here is that we have no CI for wasi. As such, it's technically not a supported platform, and so this patch is technically introducing dead code. I assume you folks have a setup for testing libc++ on wasi? Would it be possible to add that to our pre-merge CI -- then that configuration would be properly supported.

https://github.com/llvm/llvm-project/pull/184373