SWI-Prolog is a fast and powerful ISO/Edinburgh-style Prolog compiler with a rich set of built-in predicates. It offers a fast, robust and small environment which enables substantial applications to be developed with it.

The Xdebug extension helps you debugging your script by providing a lot of valuable debug information. The debug information that Xdebug can provide includes the following:

vorbis-tools contains oggenc (an encoder), ogg123 (a playback tool), ogginfo (displays ogg information), oggdec (decodes ogg files), vcut (ogg file splitter), and vorbiscomment (ogg comment editor).

Xinput is an utility for configuring and testing XInput devices.

libgnomekbd offers an API to manage the keyboard in GNOME applications.