Full corresponding source code for 2.5.2?

[Willis]

The only two libraries that DarkPlaces uses (to the best of my knowledge) that are LGPL are SDL and offcreengecko. Nexuiz doesn't include or use offscreengecko, and native non-SDL binaries are included for all platforms. All other libraries are BSD-like or public domain.

If DarkPlaces/Nexuiz had modified any of the libraries, I can assure you said code would have been included as necessary.

The problem with distributing source for libraries is that not all platforms may use the versions distributed for windows or mac when compared to linux's library management system.