CopyLeft License : Every Open Source License

This is a package of commutative diagram macros built on top of Xy-pic by Michael Barr (email: barr@barrs.org). Its use is unrestricted. It may be freely distributed, unchanged, for non-commercial or commercial use. If changed, it must be renamed. Inclusion in a commercial software package is also permitted, but I would appreciate receiving a free copy for my personal examination and use. There are no guarantees that this package is good for anything. I have tested it with LaTeX 2e, LaTeX 2.09 and Plain TeX. Although I know of no reason it will not work with AMSTeX, I have not tested it.

The "No problem Bugroff" license. Richard Stallman of the Free Software Foundation devised, in addition to some marvelous software, the GNU General Public License (GPL for short). Or the CopyLeft it is sometimes called. It is quite a revolutionary document, using the "copyright" tool to to protect your right to use free software. Unfortunately using copyright to protect free software is a lot like using a Jackal to guard the hens. In fact, various inconveniences relating to this have resulted in modifications such as the LGPL (Library General Public License) and more recently the NPL (Netscape Public License) I call these matters mere inconveniences, the real damage will occur when the Jackal's, (sorry, I mean lawye...

GCC RUNTIME LIBRARY EXCEPTION Version 3.1, 31 March 2009 Copyright © 2009 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. This GCC Runtime Library Exception ("Exception") is an additional permission under section 7 of the GNU General Public License, version 3 ("GPLv3"). It applies to a given file (the "Runtime Library") that bears a notice placed by the copyright holder of the file stating that the file is governed by GPLv3 along with this Exception. When you use GCC to compile a program, GCC may combine portions of certain GCC header files and runtime libraries with the compiled program. The purpose of this Exc...

Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved. License to copy and use this software is granted provided that it is identified as the "RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing this software or this function. License is also granted to make and use derivative works provided that such works are identified as "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing the derived work. RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided "as is" without expres...

POV-Ray License Agreement DISTRIBUTOR'S LICENCE AGREEMENT Persistence of Vision Raytracer(tm) (POV-Ray(tm)) 13 August 2004 Licensed Versions: Versions 3.5 and 3.6 Please read through the terms and conditions of this license carefully. This is a binding legal agreement between you, the "Distributor" and Persistence of Vision Raytracer Pty. Ltd. ACN 105 891 870 ("POV"), a company incorporated in the state of Victoria, Australia, for the product known as the "Persistence of Vision Raytracer(tm)", also referred to herein as "POV-Ray(tm)". The terms of this agreement are set out at http://www.povray.org/distribution-license.html ("Official Terms"). The Official Terms take precedence over this document to the extent...