CFLite is an open source framework released by Apple a few years ago. While it can be easily built on Mac OS X (or Darwin), the Linux and Windows versions have been pretty neglected in its Open Source version.
This project provides a common area for patching and building the library for Open Source use.
I had initially set this up as a Google Code project (http://code.google.com/p/cf-lite), but have moved it to SourceForge due to licensing issues at Apple's request.
Welcome to anyone interested in trying it out!