GNAT is a full-featured Ada 2012 compiler. A quote from http://www.adaic.org says: "Easily reused and maintained, readable and user friendly, Ada code facilitates such massive software projects as the Space Station and the Paris Metro. It has proven to be extraordinarily robust in decades' worth of daily field tests under the most rigorous conditions in which millions of lives have been at stake." Ada is the language for real-world, mission-critical programming.

IPAFonts are JIS X 0213:2004 compliant OpenType fonts based on TrueType outlines provided by Information-technology Promotion Agency, Japan (IPA) from 2003. These are suitable for both display and printing.

libcc1 is a plugin for GDB.

Ne, the nice editor, is one of the few text editors being both easy to use for the beginner and powerful enough for the wizard, supporting UTF-8 and multi-column characters as well as syntax highlighting.