Yeah, a quick look at Wiki shows that there aren't many VCS compatible with the BSD license.
http://en.wikipedia.org/wiki/Comparison_of_revision_control_...
http://en.wikipedia.org/wiki/Comparison_of_revision_control_...
I can use Photoshop to make a graphic, and then release that graphic as part of a BSD-licensed package without any trouble, since I own the copyright on that graphic.