Here’s what I did, though perhaps a better order of steps exists:

  • Downloaded Emacs for OSX

  • Downloaded ClozureCL from the Mac App Store.

  • Downloaded Quicklisp

  • Ran ClozureCL, then “File -> Load File …”, and selected quicklisp.lisp downloaded earlier.

  • Ran (quicklisp-quickstart:install)

  • Ran (ql:add-to-init-file) to make sure I don’t have to repeat this step again

  • Ran (ql:quickload :quicklisp-slime-helper). This downloaded SLIME and told me what to add to my .emacs:

`(load (expand-file-name “~/quicklisp/slime-helper.el”))`

  • Made a useful symlink:

  `ln -s /Applications/Clozure CL.app/Contents/MacOS/dx86cl64 ~/bin/ccl`

  • Added a reference to this in my .emacs:

`(setq inferior-lisp-program “~/bin/ccl”)`

  • Ran emacs, M-x slime works !

(or as the prompt says, “Happy hacking!”)