@Chess: I can’t read your topic beyond the title because I'm not a HWS member. However, by coincidence I received an email yesterday from Dave Verwer's "iOS Dev Weekly" that referenced the following post by Uli Kusterer. It might be of use if you haven’t already discovered "module.modulemap":

"... already worked for the last half year or so — You can create a module.modulemap file that includes your C++ headers, and then use your C++ object pretty much as if it was a Swift object."