David Chisnall

> Should we still remove `CCC_OVERRIDE_OPTIONS` in main.yml and CMakeLists? Additionally we could output a warning if clang-cl is used. Yup, I think both of those are good ideas.

That test seems to fail reliably on some of the QEMU things. I spent some time a couple of weeks ago trying to debug it. I strongly suspect a bug...

> Only downside I see with not supporting clang-cl is that I think it’s no longer possible to build with Visual Studio, as that doesn’t seem to support using clang...

It looks as if the code for the `objc_opt_` stuff is not in the public LLVM, only in Apple's fork.

All of the versions of this header should be interoperable. I thought we added a configuration option to not install ours. That should be sufficient if you have one from...

The headers should be compatible. We don’t currently have an option to build libobjc2 without the blocks runtime (when we shipped it, it was the only open source implementation). We...

The CMake has now been reworked and doesn't try to link directly against a C++ runtime. Can you try again?

Does this still fail? The C++ exception interop tests fail in CI on 32-bit Arm, but I don't think that's related?

The CMake has now been reworked and doesn't try to link directly against a C++ runtime. Can you try again?

Is this now fixed?