Which Lisp?

[Tobias Kunze]

  |  But which one *should* I use? Is one better than the other
  |  for CM/CLM/CMN?

clisp is better and you should better be reading German anyway.

No, seriously, gcl is better for clm, but sucks for cm (you need to
use pcl as a clos for gcl and as for MkLinux that might involve some
porting; even worse, it "gazonks" all the time (compile-loads
intermediate files) which is sort of nice on Halloween, but repulsive
otherwise).  Clm doesn't need clos, so it's fine there.

Bottom line: for both packages, use clisp.