ipc:// broken

[black-snow]

ipc ain't seem to work. It swallows connect('ipc://something') but ain't seem to send or receive anything. Also there's not a single test covering ipc.
It's a pity there ain't no real docs :{

How do I req/rep via ipc? I have a node server up with a rep socket that runs just fine via ipc. I didn't manage to connect / send anything to it with rbczmq.