deal.II is a C++ library supporting the generation of complex adaptive finite element codes. It features locally-refined grids, various scalar and vector-valued finite elements, linear solvers of low and higher order, arbitrary mappings, and support for 1, 2, and 3D computations. It comes with extensive documentation and example programs showing the use of the library for modern finite element programs.
ResCafé is a Swing-based Java utility for reading and extracting resources such as ICONs and MENUs from the Resource Forks of Macintosh files. In particular, it allows Linux users to use nifty Mac-only icons with their favorite desktop, e.g., KDE. It is somewhat similar to ResEdit on MacOS except that it is not an editor; it operates on files in a read-only fashion. The various resource types are parsed by auto-detected plugin handler classes.
The Qt XInput Extension is a C library adding support for XInput devices (like tablets or joysticks) to Qt-based X11 applications. QXi supports devices with up to six valuator axes in absolute mode, up to 32 buttons, and any number of keys. It is built using autoconf and libtool, and comes with a simple example application.
Prototype Makefiles allows for very fast project startups; often no editing of Makefiles is needed at all. It is a collection of shared Makefiles and Makefile templates. The shared Makefiles contain the rules for building a project, cleaning it and making dependencies etc. The Makefile templates contain the data that is specific for each project. This separation avoids duplication of code in Makefiles and is therefore extremely easy to maintain and extend.