Comment 4 for bug 850734

The maintainer of the Ruby-Gtk bindings reports that "We dropped [GtkGLExt] because nobody can maintain it."[1]

This leaves a few options:

1) Find a new maintainer for GtkGlExt in the official bindings

2) Adopt the GtkGlExt bindings into the Luz repo

3) Move to Luz 2.0, which includes dropping Gtk in Luz Studio and moving to a pure Ruby + OpenGL interface, with the benefits of Windows and OSX support, easy multi-user-over-a-LAN (aka LuzNet)

It seems that (2) could be a good short term solution, especially now that Luz is packaged for Ubuntu.

[1] http://sourceforge.net/mailarchive/forum.php?thread_name=20120401.110333.1047977546051732498.kou%40cozmixng.org&forum_name=ruby-gnome2-devel-en