License
Racket is distributed under the MIT license and the Apache version 2.0 license, at your option. However, the Racket runtime system includes components distributed under other licenses. In short:
The traditional Racket runtime system includes code distributed under the GNU Lesser General Public License, version 3.
The Racket on Chez Scheme runtime system embeds Chez Scheme, which is distributed under the Apache version 2.0 license.
Except for Windows executables that are created with the “embed DLLs” option, the runtime system remains separate as a shared library or additional executable, which means that it is dynamically linked and can be replaced with a modified variant by users.
See "LICENSE-LGPL.txt" in your Racket installation’s "share" directory for the full text of the GNU Lesser General Public License.
See "LICENSE-APACHE.txt" in your Racket installation’s "share" directory for the full text of the Apache version 2.0 license.
See "LICENSE-MIT.txt" in your Racket installation’s "share" directory for the full text of the MIT license.
Racket software includes or extends the following copyrighted material:
libscheme |
Copyright (c) 1994 Brent Benson |
All rights reserved. |
Collector C++ extension by Jesse Hull and John Ellis |
Copyright (c) 1994 Xerox Corporation |
All rights reserved. |
GNU MP Library |
Copyright (c) 1991, 1992, 1993, 1994, 1996, 1999, 2000, 2007 |
Free Software Foundation, Inc. |
GNU lightning |
Copyright (c) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2011 |
Free Software Foundation, Inc. |
libunwind |
Copyright (c) 2003-2005 Hewlett-Packard Development Company, L.P. |
MemoryModule |
Copyright (c) 2004-2015 by Joachim Bauch / mail@joachim-bauch.de |
http://www.joachim-bauch.de |
SHA-224 and SHA-256 implementation from mbed TLS |
Copyright (c) 2006-2015, ARM Limited, All Rights Reserved |
See also other "LICENSE.txt" files in your distribution or packages.