symbol conflicts

I'm trying to use the latest version of matlisp, downloaded from CVS
today, under CMUCL 18e.

I can compile OK, but I (use :matlisp) encounters the problem that
there is already a symbol "real" in the common-lisp-user package.  I
can unintern it manually, but I don't know whether this is safe (I'm
not sure how to figure out what it does, it seems to be the name of a
class, rather than a function).  What's the right approach?

Also, for anyone using cllib (which I'd think could be many people),
there's also conflicts with "norm" and "dot".

Cheers,

rif