what idiot licensed source code under creative commons? that's for stuff like art and music.

that said, the full legalese includes the provision "(IV) when You Distribute or Publicly Perform the Adaptation, You may not impose any effective technological measures on the Adaptation that restrict the ability of a recipient of the Adaptation from You to exercise the rights granted to that recipient under the terms of the Applicable License." which could be construed to require that you distribute the source code.