Just a heads up, I've finally merged the change necessary to build XCTest via CMake on master. This is effective for the non-Darwin builds. I don't expect there to be any issues as a result of this change, but I thought that I would let people know so that they are aware.
For those who are missing the context on this, this is going to help us make the builds more uniform and cross-compile XCTest as well. It will allow us to also do similar work for Foundation and possibly even move to a CMake joined build that will allow you to track dependencies across all the projects!