I compiled my own binaries and trying to run psclient or pslaunch just spits an error:
WARNING: could not load plugin 'crystalspace.graphics3d.opengl'
No 3D driver!
psclient: No 3d driver (iGraphics3D) plugin!
What's the problem? It seems that CrystalSpace engine needs the plugin or driver or whatever it is but CS compiled just fine, so did the cal3d. I am using 64 bit Gentoo Linux.