[Freeswitch-users] Installation: make is failing at mod_conference.c:3804

I'm trying to do a fairly normal download, configure, make, make install of last night's tarball, but the make is failing at mod_conference: http://pastebin.freeswitch.org/13350 This is on an Amazon EC2 install of Ubuntu Lucid (10.04). I followed the exact same procedures about 3-4 days ago and it installed fine then, so it may be something that has changed this week. Apart from the default configs, I'm enabling mod_silk, mod_flite, mod_shout, mod_xml_curl. Any ideas? Cheers, Fraser