here\'s what worked for me (Gentoo, everything installed from source!):
i run PS using this command
CRYSTAL=/opt/crystal CEL=/opt/crystal /usr/bin/planeshift
...change CRYSTAL and CEL to your paths to crystalspace and CEL
...is that fails try asking the same question on the irc channel
...i also know a guy that made it work in redhat using the sources, but he\'s on holiday ATM
