gnuserv always exits after last client

I built the ToT version on Ubuntu 14.04 and everything seems to be working fine except for one thing. I start xemacs, and the M-x gnuserv-start. In a terminal, I run "gnuclient file". Edit the file in a new window as usual and press the Done button. Window is closed and everything seems fine, but in the main xemacs window, the minibuffer says that gnuserv exited and to M-x gnuserv-start again. This didn't used to happen. Can't figure out why gnuserv is exiting in this way. Any tips on figuring this out? -- R ​ay​