It has been a while since I last used CLion. I got Nethack working with it (I did have to run it through cproto first) and at the time it auto-generated a broken cmakelists.txt that I simplified with an even more broken one that slurped up every single source file with a couple wildcards. Couldn't build that way of course, but it was enough to index all the things while the makefile did the real job. Good to know that's not a necessary step anymore.