> > I see all the examples on the MameDev site also use pacman in their code snippets. > > Does this process have to be done for every ROM, or is pacman just some generic > > coding thing I don't know about? > > > I do it just before doing a compile to ensure all the things are updated. It has > nothing to do with ROMs or running the games if I'm understanding you correctly.
indeed, it's just a stupidly named 'package manager' app..
it's also annoyingly buggy on windows, and fails to even update things properly due to files being in use or something.