I am very sorry, my problem was in my own configuration of my old .emacs
file.
In this file I had this :
(custom-set-variables
;; custom-set-variables was added by Custom -- don't edit or cut/paste it!
;; Your init file should contain only one such instance.
'(maxima-args "-l cmucl")
...
)
Hence maxima-emacs mode was trying to run maxima cmucl. May be, this
solves the question of Dan H:
>So, I guess the key question is: how does one configure which
>lisp the emacs mode uses?
I thanks all yours has trying to help me.