Make example

This is an example of a Makefile that installs software onto a system, if it does not already exist.

https://gist.github.com/3030284

The idea is that it can be made cross platform (work with different flavors of Linux, BSD, mac etc)...

The eventual goal is to have Makefiles that roll out and configure new environments.

Inspired by a talk by @mitechie (http://blog.mitechie.com),
as well as the awesomeness of the FreeBSD ports system.