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You should have received a copy of the GNU General Public License along with this program. If not, see .Also add information on how to contact you by electronic and paper mail.If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w’.This is free software, and you are welcome to redistribute it under certain conditions; type `show c’ for details.The hypothetical commands `show w’ and `show c’ should show the appropriate parts of the General Public License. Of course, your program’scommands might be different; for a GUI interface, you would use an “about box”.You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary.For more information on this, and how to apply and follow the GNU GPL, see .The GNU General Public License does notpermit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linkingproprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, pleaseread .GNU Lesser General Public License (LGPL)GNU GENERAL PUBLIC LICENSEVersion 3, 29 June 2007Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.PreambleThe GNU General Public License is a free, copyleft license for software and other kinds of works.The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNUGeneral Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for allits users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released thisway by its authors. You can apply it to your programs, too.When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have thefreedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you canchange the software or use pieces of it in new free programs, and that you know you can do these things.To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certainresponsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that youreceived. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legalpermission to copy, distribute and/or modify it.For the developers’ and authors’ protection, the GPL clearly explains that there is no warranty for this free software. For both users’ and authors’ sake, theGPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so.This is fundamentally incompatible with the aim of protecting users’ freedom to change the software. The systematic pattern of such abuse occurs in thearea of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibitthe practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in futureversions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should notallow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger thatpatents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the programnon-free. The precise terms and conditions for copying, distribution and modification follow.TERMS AND CONDITIONS0. Definitions.“This License” refers to version 3 of the GNU General Public License.“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.“The Program” refers to any copyrightable work licensed under this License. Each licensee is addressed as “you”. “Licensees” and “recipients” maybe individuals or organizations.To “modify” a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exactcopy. The resulting work is called a “modified version” of the earlier work or a work “based on” the earlier work.A “covered work” means either the unmodified Program or a work based on the Program.To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement underapplicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or withoutmodification), making available to the public, and in some countries other activities as well.To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through acomputer network, with no transfer of a copy, is not conveying.An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently visible feature that(1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties areprovided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of usercommands or options, such as a menu, a prominent item in the list meets this criterion.1. Source Code.The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any nonsource form of a work.A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfacesspecified for a particular programming language, one that is widely used among developers working in that language. The “System Libraries” of anexecutable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but whichis not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interfacefor which an implementation is available to the public in source code form. A “Major Component”, in this context, means a major essential component(kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce thework, or an object code interpreter used to run it. The “Corresponding Source” for a work in object code form means all the source code needed togenerate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, itdoes not include the work’s System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing English |
