/etc/csh.cshrc in prior releases has been changed to
/etc/csh.login. tcsh DOES NOT use this file, and thus the
prompt never gets set, or all of the other winderfull things
that /etc/csh.cshrc normally did.
renaming /etc/csh.login to /etc/csh.cshrc restored normal
behavior to tcsh. I did NOT test the behavior with csh, nor
did I check if tcsh and csh were the same program. (one
sym-linked to the other)
tcsh invokes csh.login OK for login shells here.
In setup-2.0.6-1, which will be in the next Raw Hide release,
functionality will be split between csh.login & csh.cshrc
in a manner similar to /etc/bashrc & /etc/profile.