[cairo] "extra" backends

[Jason Dorje Short]

Mike Emmel wrote:
> Is there any way we could set up a CVS repository for new backends and
> older unmaintained ones like the PS one. I'ld like to checkin my
> directfb one
> somewhere associated with cairo and am willing to do a SDL one also.
> I think its problematic keeping more then a few backends in the core
> cairo tree but it would be nice to encourage more to be written.

Is there a clean way to build extra backends as separate libraries on 
top of cairo?

-jason