Recently I was trying to get a game to work. The game worked fine on windows but had issues on linux and I wanted it to work on linux so I got the source code and tried to compile it. It was some modded quake 3 thingy but the code followed some weird standard that wasn't C99 or C89. Both gcc and clang where having issues so I gave up. I was thinking about forking it other and making a modern version of it but I have other projects.