Fluxbox is a window manager for X that was based on the Blackbox
0.61.1 code. It is very light on resources and easy to handle but yet
full of features to make an easy, and extremely fast, desktop
experience. It is built using C++ and licensed under the MIT-License.

This SlackBuild builds from GIT.


Homepage: 
SlackBuild:
http://www.fluxbox.org
fluxbox-git.tar.gz