Binary package “xscreensaver-gl-extra” in ubuntu intrepid

GL(Mesa) screen hacks for xscreensaver

 These are some extra hacks for xscreensaver that use the Mesa
 OpenGL-compatible library. They are included as an extra package so
 the base package doesn't require Mesa. In addition, these hacks function
 nicely as GL demos for people who want to try out hardware accelerated 3D
 with X.Org
 This is the set of GL screensavers not shipped by default.