New comment by calibius on void-packages repository https://github.com/void-linux/void-packages/issues/29676#issuecomment-808513945 Comment: The problem is the current mupdf package doesn't provide a mupdf.pc and there's no (ocaml-)lablgl package. So you're looking at multiple packages/changes to support this one if you want to use the makefile. I've looked at it, but I'm not knowledgeable enough to do it. You can check out [my fork](https://github.com/calibius/void-packages/tree/llpp) and maybe point me in the right direction? It's kind of messy at the moment lol ... It's actually the labgl package I'm stuck on right now. I can't figure out why it won't install anything.