extreme-tech-seminar.github.io/sicp/scheme-setup.md

title	layout
Scheme Environment Setup	page

All of the work in SICP is done in in mit-scheme. The following instructions will help you set up an environment to follow along with the coding examples and exercises. If you have or need instructions on how to get set up on an environment not listed below, feel free to let us know or send us a pull request.

Ubuntu Linux

Installing Emacs

I recommend using the latest and greatest version of emacs, which can be had from Damien Cassou's PPA. To install, just add the ppa, update, and install:

sudo add-apt-repository ppa:cassou/emacs
sudo apt-get update
sudo apt-get install emacs24 emacs24-el emacs24-common-non-dfsg

Installing MIT Scheme

32-bit Ubuntu

If you are on a 32-bit system, all you need to do is install the mit-scheme package from the ubuntu repository:

sudo apt-get install mit-scheme

64-bit Ubuntu

If you are on a 64-bit system, you'll need to find a 64-bit package. Lucky for us, the folks at the University of Minnesota have one available we can use:

sudo apt-get install xutils-dev libx11-dev libncurses5-dev
sudo wget http://www-users.cselabs.umn.edu/classes/Fall-2010/csci1901/mit-scheme-x64_9.0.1-1_amd64.deb
sudo dpkg -i mit-scheme-x64_9.0.1-1_amd64.deb

The 64-bit package installs mit scheme as mit-scheme-x86-64, so to launch it using the more familiar mit-scheme and scheme commands, we'll symlink it:

sudo ln -s -T /usr/local/bin/mit-scheme-x86-64 /usr/local/bin/mit-scheme
sudo ln -s -T /usr/local/bin/mit-scheme-x86-64 /usr/local/bin/scheme

Once installed, you can start an interactive scheme session in emacs by running M-x run-scheme.

Mac OSX

Installing Emacs

I use Homebrew for my emacs install since most of the other ones for Mac OS X have annoyed me in one way or another so here's how I set that up.

1. Install Homebrew

    ruby -e "$(curl -fsSkL raw.github.com/mxcl/homebrew/go)"
    brew install automake
   

2. Install emacs

    brew install emacs --HEAD --use-git-head --cocoa --srgb
   

3. Then get the mac to recognize your installation

    ln -s /usr/local/Cellar/emacs/HEAD/Emacs.app /Applications
   

4. Tell Launchbar to find it in /usr/local/Cellar

5. Then fix the path adding this to .bash_profile:

    alias emacs=/usr/local/Cellar/emacs/HEAD/bin/emacs
    alias emacsclient=/usr/local/Cellar/emacs/HEAD/bin/emacsclient
   
    export EDITOR=emacs
    export EMACS=/usr/local/Cellar/emacs/HEAD/bin/emacs
   

6. Then source .bash_profile

Installing MIT Scheme

1. Download and install MIT/GNU Scheme for Mac OS X x86-64.

2. Download and install XQuartz if you don't already have it.

3. Install a symlink to the binary

    sudo ln -s /Applications/MIT\:GNU\ Scheme.app/Contents/Resources/mit-scheme /usr/local/bin/scheme
   

4. Add the following to your .emacs (N.B. the backslash escaping)

    (setenv "MITSCHEME_LIBRARY_PATH" "/Applications/MIT\\:GNU\\ Scheme.app/Contents/Resources")
   

5. Add the following to your .bash_profile

    export MITSCHEME_LIBRARY_PATH="/Applications/MIT\:GNU\ Scheme.app/Contents/Resources"
   

6. source .bash_profile

7. To run scheme in emacs do M-x run-scheme You need to make sure your emacs knows to use /usr/local/bin for a path and has setup the MITSCHEME_LIBRARY_PATH you should see something like this:

    MIT/GNU Scheme running under MacOSX
    Type `^C' (control-C) followed by `H' to obtain information about interrupts.
   
    Copyright (C) 2011 Massachusetts Institute of Technology
    This is free software; see the source for copying conditions. There is NO warranty; not
    even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   
    Image saved on Tuesday November 8, 2011 at 10:45:46 PM
      Release 9.1.1 || Microcode 15.3 || Runtime 15.7 || SF 4.41 || LIAR/x86-64 4.118
      Edwin 3.116
   
    1 ]=> 
   

8. To run it from the command line and enter the REPL just run scheme again assuming your bash knows to use /usr/local/bin as part of it's path. ^D to exit the REPL. You should see the same thing as above but not in an emacs buffer.

References

• How to run scheme with Emacs?
• some question and info on emacs Path