This Makefile system was created by Martin Oldfield ex-atelier@mjo.tc and the license is his also. I have placed one simple makefile in here also. It will not work since there are no source files in this directory. His blog post discussing use is located here.
I have modified this file to make it more extensible and to allow it to work in a much more generic fashion. I will keep modifying and adding customizations options as I need them.