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MIT/GNU Scheme

MIT/GNU Scheme is an implementation of the Scheme programminglanguage, providing an interpreter, compiler, source-code debugger,integrated Emacs-like editor, and a large runtime library. MIT/GNU Scheme is best suited to programming large applications with arapid development cycle.

Release status and future plans

Current releasesStable9.2

The releases provide binaries that run on i386 and x86-64 machines under the following operating systems:GNU/Linux, OS X, and Windows. We additionally providebinaries for selected other architectures and systems, depending onthe hardware and software that is available to us. We no longersupport OS/2, DOS, or Windows systems prior to XP.

Recent release notes are here.

In the future, we plan to deploy a new portable virtual machine andimplement a module system. We also plan to finish support forR5RS, but we will not be providing support forR6RS.Other potential projects can be found on thetasks page.

Download

MIT/GNU Scheme is available in binary form for a variety ofsystems.Note that most problems unpacking or installing this software are dueto corrupted downloads, soplease check the downloaded filefor a correct MD5 checksum before submitting a bug report.Each distribution below has its own list of MD5 checksums.

Stable release 9.2FileArchInstructionsNotesUnix binaryi386unix installation Unix binaryx86-64unix installation OS X binaryi386 Compiled on OS X 10.9.OS X binaryx86-64 Compiled on OS X 10.9.Windows binaryi386Windows installationCompiled on Windows 7 using Open Watcom C/C++ 1.9.Portable C(any)how to buildFor use on any unix system.Source (.tar.gz)  For unix systems; uses linefeeds as line delimiters.Change log   MD5 checksums   

Older versions can be downloadedhere.

Code for running MIT/GNU Scheme under GNU Emacs ishere (orbyte-compiled); this has been testedon GNU Emacs versions 20.7 and 21.1, and should replace thefile of the same name included withGNU Emacs; it won't workwithGNU Emacs 19 or earlier.This doesn't work onWindows or OS/2.

Note that you cannot build a working system from the source unless youhave a working MIT/GNU Scheme compiler to do the compilation.(This doesn't apply to the portable C source, which requires only a Ccompiler.) This means that if the above binaries don't work on yoursystem, it is pointless to try building a custom set of binaries fromthe source code.

Documentation

Documentation for MIT/GNU Scheme is available online, asis documentation for most GNU software. TheMIT/GNU Scheme documentation is available inHTML andPDF formats:

Core documentation:HTMLPDFMIT/GNU Scheme ReferenceHTMLPDFMIT/GNU Scheme User's ManualHTMLPDFThe SOS Reference ManualHTMLPDFIMAIL User's ManualSupported SRFIs:HTML 0: cond-expandHTML 1: List libraryHTML 2: and-let*HTML 6: Basic string portsHTML 8: receiveHTML 9: Defining record typesHTML 23: Error reporting mechanismHTML 27: Sources of random bitsHTML 30: Nested multi-line commentsHTML 62: S-expression commentsHTML 69: Basic hash tables

Contact us

Please report bugs using thebug-tracking system.
We can be contacted on themit-scheme-develmailing list.
New releases of MIT/GNU Scheme are announced on themit-scheme-announce mailing list.

Our more general Scheme page ishttp://swiss.csail.mit.edu/projects/scheme/.
Older releases can be found athttp://swiss.csail.mit.edu/ftpdir/mit-scheme/.

Getting involved

Development of MIT/GNU Scheme, and GNU in general, isa volunteer effort, and you can contribute. For information, pleasereadHow to help GNU. If you'd like to getinvolved, it's a good idea to join the discussion mailing list (seeabove).

Development

For development sources, bug and patch trackers, and otherinformation, please see theprojectpage atSavannah.

Maintainer

MIT/GNU Scheme is currently being maintained byChris Hanson.Please use the mailing lists for contact.

Licensing

MIT/GNU Scheme is free software; you can redistribute it and/ormodify it under the terms of theGPL as published by theFree Software Foundation; either version 2 of the License, or (at youroption) any later version.

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Copyright © 2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014 Free Software Foundation, Inc.

Verbatim copying and distribution of this entire article are permitted worldwide, without royalty, in any medium, provided this notice, and the copyright notice, are preserved.

Updated: 2014-05-21T02:44:23-07

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