XMAKE is simliar to other make's out there, but is specifically designed to allow you to easily construct multiple complex dependancies without getting screwed by default rulesets. XMake contains a number of features specifically designed to trivialize the construction of compilation rules.
XMake was written and is currently being maintained by Matthew Dillon, http://www.backplane.com/,
you can mail me at: dillon at backplane.com
A manual page is available: xmake.1
Here is a listing of the tar (for 1.05)