Here's a one line patch to the dev branch to get traffic_manager running on OS X. Before I would get this error:
NOTE: [LocalManager::initCCom] Unable to find network interface en1. Exiting... (This was after I changed proxy.config.cluster.ethernet_interface from eth0.) Digging around in proxy/mgmt2/utils/MgmtUtils.cc: -#if (HOST_OS == freebsd) +#if (HOST_OS == freebsd || HOST_OS == darwin) There's still some other stuff to be done to get it working properly, but at least it starts traffic_server. Geoff