I've merged with Linus' current tree, due to a newly assigned netlink family, the NETLINK_DECT value has changed. Both the libnl and libdect trees need to be updated as well and recompiled against the current set of kernel headers (specifically, using the current include/linux/netlink.h file).
Refer to the Build instructions if in doubt.
Thanks to Harald, the git problems should be fixed now. Apparently OpenVZ by default limits the amount of sockets per instance to 1% of the global limit. Git is forking wildly, creating lots of orphaned sockets until it hits the limit.