Running MIT Scheme in Emacs on OS X

Posted on 18 Nov 2010

  1. Download and install MIT Scheme.

  2. Create a symbolic link to the Scheme binary, something like this:

     cd /usr/local/bin
 sudo ln -s /Applications/mit-scheme.app/Contents/Resources/mit-scheme scheme

  3. Set the MITSCHEME_LIBRARY_PATH environment variable in Emacs. I’m using the Emacs Starter Kit so I do this in ~/.emacs.d/paulhorsfall.el, you’ll need to put it somewhere appropriate for your set-up. You might also want to set this in your shell if you’d like to run scheme there.

     ;; MIT Scheme
 (setenv "MITSCHEME_LIBRARY_PATH"  "/Applications/mit-scheme.app/Contents/Resources")

With that, you can now do M-x run-scheme to start a scheme interpreter. You can switch a buffer to Scheme mode using M-x scheme-mode, and from there you can do C-x C-e to send the expression to the left of the point to the Scheme interpreter for evaluation.