LibUGT is a cross-platform backend (via glut) for libUFO, a widget set for OpenGL.
This project is hosted on sourceforge.
You can download releases from sourceforge.net:
http://sourceforge.net/project/showfiles.php?group_id=49762&release_id=130308
.From time to time there are also snapshots available.
The releases are tested with g++-3.3 under X11, GNU/Linux.
