an open source, high performance library for simulating rigid body dynamics. It is fully featured, stable, mature and platform independent with an easy to use C/C++ API. It has advanced joint types and integrated collision detection with friction.
a game programming library for C/C++ developers distributed freely, supporting the following platforms: DOS, Unix (Linux, FreeBSD, Irix, Solaris, Darwin), Windows, QNX, BeOS and MacOS X. It provides many functions for graphics, sounds, player input, etc..
a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6
a component system that will provide extensibility and re-usability both inside and between applications, while being portable across platforms (and languages) and having the lowest possible overhead (both in machine resources and programming effort).
a compiler cache. It acts as a caching pre-processor to C/C++ compilers. Caching previous compilations and detecting when the same compilation is being done again. (needs GCC or similar)