ethzasl_message_transport stack (for UDP Multicast) installation problem

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I am looking to use UDP multicasting approach for communication, I found one stack with 'udpmulti_transport' package which does that.

http://www.ros.org/browse/stack.php?name=ethzasl_message_transport

I have been having problem installing this stack, have cloned it from the repository, and added the folder to Ros Package path. When I try to install it ( rosmake --rosdep-install ) I get error in the packages which seems to be c++ coding error.

pakage udpmulti_transport

  ***udpmulti_publisher.h:30: error: expected ‘;’ before ‘&’ token***

then have similar error in sharedmem_transport Is there something wrong in the stack or I am making some mistake. PS: running ROS electric