This error may be the result of missing development packages, but I have no Idea since ./configure just returns "Not a file or directory" message. But here she blows.
make[1]: Entering directory `/home/t47/ufo_2.0-rc6_svn_4746/ufoai_2.0-rc6/src'
make[2]: Entering directory `/home/t47/ufo_2.0-rc6_svn_4746/ufoai_2.0-rc6/src'
* [UFO] debugi386/client/cl_actor.o
* [UFO] debugi386/client/cl_basemanagement.o
* [UFO] debugi386/client/cl_research.o
client/cl_research.c:820: warning: ‘RS_DependsOn’ defined but not used
* [UFO] debugi386/client/cl_market.o
* [UFO] debugi386/client/cl_campaign.o
* [UFO] debugi386/client/cl_ufo.o
* [UFO] debugi386/client/cl_radar.o
* [UFO] debugi386/client/cl_popup.o
* [UFO] debugi386/client/cl_produce.o
* [UFO] debugi386/client/cl_employee.o
* [UFO] debugi386/client/cl_map.o
* [UFO] debugi386/client/cl_aircraft.o
* [UFO] debugi386/client/cl_fx.o
* [UFO] debugi386/client/cl_input.o
* [UFO] debugi386/client/cl_le.o
* [UFO] debugi386/client/cl_main.o
* [UFO] debugi386/client/cl_menu.o
* [UFO] debugi386/client/cl_parse.o
* [UFO] debugi386/client/cl_particle.o
* [UFO] debugi386/client/cl_shader.o
* [UFO] debugi386/client/cl_scrn.o
* [UFO] debugi386/client/cl_sequence.o
In file included from client/cl_sequence.c:815:
client/snd_loc.h:39:31: error: vorbis/vorbisfile.h: No such file or directory
make[2]: *** [debugi386/client/cl_sequence.o] Error 1
make[2]: Leaving directory `/home/t47/ufo_2.0-rc6_svn_4746/ufoai_2.0-rc6/src'
make[1]: *** [build_debug] Error 2
make[1]: Leaving directory `/home/t47/ufo_2.0-rc6_svn_4746/ufoai_2.0-rc6/src'
make: *** [src] Error 2
Any suggestions as to how I can get this to work? RC5 has to many bugs to be playable on my system, so it is pretty much this or nothing. This was the Dapper Drake release of Ubuntu. Or more generally the 2.6.1.x linux kernal. Thanks in advance for advice.