http://se.aminet.net/pub/Linux/distributions/slackware/slackware-10.1/source/xap...

[xscreensaver] / hacks / README

This directory contains various graphics hacks.  These are independent from
the xscreensaver program (in the ../driver/ directory) but some of them use
the utility functions found in the ../utils/ directory.

If you have compilation problems, check the parameters in ../config.h.