CopyLeft License : Every Open Source License

1. you can do what you want with it 2. I refuse any responsibility for the consequences

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...

The LaTeX Project Public License =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- LPPL Version 1.3a 2004-10-01 Copyright 1999 2002-04 LaTeX3 Project Everyone is allowed to distribute verbatim copies of this license document, but modification of it is not allowed. PREAMBLE ======== The LaTeX Project Public License (LPPL) is the primary license under which the the LaTeX kernel and the base LaTeX packages are distributed. You may use this license for any work of which you hold the copyright and which you wish to distribute. This license may be particularly suitable if your work is TeX-related (such as a LaTeX package), but you may use it with small modifications even if your work is unrelated to TeX. The section `WHETHER AND HOW TO ...

This program is free software; you can redistribute it freely. Use it at your own risk; there is NO WARRANTY. Redistribution of modified versions is permitted provided that the following conditions are met: 1. All copyright & permission notices are preserved. 2.a) Only changes required for packaging or porting are made. or 2.b) It is clearly stated who last changed the program. The program is renamed or the version number is of the form x.y.z, where x.y is the version of the original program and z is an arbitrary suffix.

Free Art License 1.3 [ Copyleft Attitude ] Free Art License 1.3 (FAL 1.3) Preamble The Free Art License grants the right to freely copy, distribute, and transform creative works without infringing the author's rights. The Free Art License recognizes and protects these rights. Their implementation has been reformulated in order to allow everyone to use creations of the human mind in a creative manner, regardless of their types and ways of expression. While the public's access to creations of the human mind usually is restricted by the implementation of copyright law, it is favoured by the Free Art License. This license intends to allow the use of a work’s resources; to establish new conditions for creating in order to increase creat...