Apparently I have the wrong idea about the ./makepkg command and how it's used. I tried it on OpenBM, not that I really need it, but it said there was source in there so I thought I would try it with that. Sorry I'm a freaking n00b when it comes to this.
Anyways I'm sure there will be plenty of tools, documentation and tutorials in the coming weeks and after that it won't even be an issue since the developers will start signing themselves.
Thanks. I guess I'm going to have to check my post more thoroughly before I post since I usually find errors minutes after I've posted.