GLib is a low-level general-purpose library used mainly by GTK+/GNOME applications, but is useful for other programs as well. glibmm is the C++ wrapper for GLib.

Mesa is a 3-D graphics library with an API which is very similar to that of OpenGL. To the extent that Mesa utilizes the OpenGL command syntax or state machine, it is being used with authorization from Silicon Graphics, Inc. However, the authors make no claim that Mesa is in any way a compatible replacement for OpenGL or associated with Silicon Graphics, Inc.

The Simple Network Management Protocol (SNMP) provides a framework for the exchange of management information between agents (servers) and clients.

Cubemap is a high-performance, high-availability video reflector, specifically made for use with VLC.