Also, please be sure to test without any manual workarounds, such as overriding the include path with environment variables. That should not be necessary.
No problem. I never set any environment vars; I just pass values to the program when necessary.
I'd be interested in looking at the changes you included. Though I've looked on GitHub and nothing stands out to me as being the improvements you've mentioned. Would you mind providing a PR number or link?
Sure thing. I was specifically referring to: Derive LangOpts.EnableObjCInterop every time the triple is changed. by adrian-prantl · Pull Request #555 · apple/swift-lldb · GitHub and Linux / cmake: Install the clang resource directory to the expected P… by adrian-prantl · Pull Request #388 · apple/swift-lldb · GitHub.