The ANTLR ANSI C and GCC source to source translation framework includes an ANSI-C parser which builds trees, a GCC parser which builds trees, a GCC tree parser (for you to subclass to do transformations), and a GCC tree emitter. The GCC parser is only for GCC's extensions to C, not C++. It is based on GCC 2.95.2.
GClipper is a multiple buffer clipboard that automatically fetches new selections and maintains them in a history. It shows a listview with the fetched selections and allows the visualization of their details. The selected row in the listview will be used to determine the data for selection retrieval (paste).
GDAM is real-time digital dj mixing software package. Any number of mp3 files can be played and mixed simultaneously. Effects can be added, changed, and rearranged dynamically. GDAM features a client-server architecture; all sound is produced by a server, which receives instructions from any number of clients. Other features include plugins for audio effects and interface components, cacheing and looping, sequencing, assisted beatmatching, a waveform viewer/beat calculator, contiguous queueing (no pauses between songs when using a playlist), an online help system, an mpg123 clone which runs on a gdam server, flexible command line interface for direct control of server, recording of entire mix or any point in stream to buffer/disk/mp3 encoder, support for multiple sound devices, and support for midi hardware control.
GdkRgb is a rewrite of the image rendering subsystem of Gtk+. Advantages over plain Gtk+ 1.0.x include higher speed, very smooth and pretty dithered modes, and support for more displays and visuals. It is currently checked into development versions of Gtk+ (and used in the development tree of the Gimp), but is also packaged separately for application authors who want to maintain Gtk 1.0.x compatibility. The programming interface is quite simple.