Hi Glenn,
First, do a clean check out from our svn.
Orbiter under Linux depends on four pluto libraries:
1) libSerializeClass.so
Go to src/SerializeClass and do a make clean, then make.
2) libDCECommon.so
Go to src/DCE and do a make clean, then make.
3) libPlutoUtils.so
Go to src/PlutoUtils and do a make clean, then make.
4) libSDL_Helpers.so
Go to src/SDL_Helpers and do a make clean, then make.
For external dependencies (-lmysqlclient_r -lpthread -lSDL -lSDL_ttf -lSDL_image -lSGE -lSDL_gfx -lXtst -lXext -lGL -lXrender -lGLU -lX11 -lXmu -lglib-2.0), you can go to pluto-admin: Advanced->Software->Packages and check its package version and do an apt-get install.
Then go to src/Orbiter and do a make clean bin.
Best regards,
Cristian Miron