The link to download source code isn't working nvm, it's just one of Chrome's "funky feature" to hide the file's actual size.
Alright, I'm seeing some missing dependencies, is there anything wrong with it? Now I see why README.md is important (I've made some games using Python while only knowing the basics of C++ so I'm glad I could understand a bit of your code).
Ok, I'm giving up now. I've spent hours trying to figure things out with dependencies but when those are done I get a bunch of undefined terms (not to mention the undefined ones in other cpp files). Can you get in touch with the one who compiled this for macOS for you and ask them again?