So by default, downloading the git repo that contains a submodule does not download the submodule. Confusing, I know, I went through this whole thing. Have you run ‘reset.sh’? If you read that file you’ll see that one of the things it does is cd’s into each submodule and downloads the submodule’s repo. It also runs all the make commands for you. Or you could just read that file & do it all by hand if you want.