system environment/libraries
- glib - A library of handy utility functions
- libcddb - Library (C API) for accessing CDDB servers
- libebml - Extensible Binary Meta Language library
- libev - High-performance event loop library
- libmatroska - Open audio/video container format library
- libva - Video Acceleration (VA) API for Linux
- spandsp - A library of DSP functions for telephony spans