[libcxx-commits] [libcxx] [libcxx] Re-include <osreldate.h> in __config for FreeBSD (PR #77242)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Is it not an option to instead compile openjdk11 with a supported version of Clang? Or, alternatively, you could compile openjdk11 with Clang 12, but also with libc++ 12 which would be a supported configuration. The current situation of using Clang 12 with libc++ 17 is actually prone to a lot more issues than this `[[using_if_exists]]` attribute lacking, I would expect a bunch more stuff to start failing in the future and I am a bit surprised you haven't run into other issues yet.

Because this is generally a non-supported configuration and this issue is likely just the tip of the iceberg, I would rather not move forward with this patch and instead remove `_LIBCPP_C_HAS_NO_GETS`.

https://github.com/llvm/llvm-project/pull/77242