[Distutils] Building an egg from Subversion using zc.buildout

I'm using zc.buildout for deploying a handful of applications, and one of our dependencies doesn't have eggs or "correctly" formatted pages (that would allow easy_install to track down the repository for direct building from source). Does zc.buildout provide any way to build an egg from a Subversion URL? Something with similar behavior to: easy_install -m -d ./eggs http://path/to/svn/repos I'm happy to write a recipe if necessary, just thought I'd make sure someone else hadn't already scratched this itch. Thanks, Nathan