claws-mail/manual/es/gpl.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<appendix id="ap_gpl">
    <title>GNU General Public License</title>
    <para>
	Version 2, June 1991
    </para><para>
	Copyright 1989, 1991 Free Software Foundation, Inc.
    </para><para>	
	Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, 
	Boston, MA 02110-1301 USA
    </para><para>	
        Everyone is permitted to copy and distribute verbatim copies of this 
	license document, but changing it is not allowed.
    </para><para>
	Version 2, June 1991
    </para>
  <section>
    <title>Preamble</title>
    <para>
      The licenses for most software are designed to take away your 
      freedom to share and change it. By contrast, the GNU General Public 
      License is intended to guarantee your freedom to share and change 
      free software - to make sure the software is free for all its users. 
      This General Public License applies to most of the Free Software 
      Foundation's software and to any other program whose authors commit 
      to using it. (Some other Free Software Foundation software is covered 
      by the GNU Library General Public License instead.) You can apply it 
      to your programs, too.
    </para><para>      
      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 the 
      freedom to distribute copies of free software (and charge for this 
      service if you wish), that you receive source code or can get it if you 
      want it, that you can change the software or use pieces of it in new free 
      programs; and that you know you can do these things.
    </para><para>      
      To protect your rights, we need to make restrictions that forbid anyone 
      to deny you these rights or to ask you to surrender the rights. These 
      restrictions translate to certain responsibilities for you if you 
      distribute copies of the software, or if you modify it.
    </para><para>      
      For example, if you distribute copies of such a program, whether gratis 
      or for a fee, you must give the recipients all the rights that you have. 
      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.
    </para><para>      
      We protect your rights with two steps:
    </para>
      <itemizedlist>
	<listitem>
	  <para>    
	    copyright the software, and
	  </para>
	</listitem>
	<listitem>
	  <para>    
	    offer you this license which gives you legal permission to copy, 
	    distribute and/or modify the software.
	  </para>
	</listitem>
      </itemizedlist>
    <para>      
      Also, for each author's protection and ours, we want to make certain that 
      everyone understands that there is no warranty for this free software. If 
      the software is modified by someone else and passed on, we want its 
      recipients to know that what they have is not the original, so that any 
      problems introduced by others will not reflect on the original authors' 
      reputations.
    </para><para>      
      Finally, any free program is threatened constantly by software patents. 
      We wish to avoid the danger that redistributors of a free program will 
      individually obtain patent licenses, in effect making the program 
      proprietary. To prevent this, we have made it clear that any patent must 
      be licensed for everyone's free use or not licensed at all.
    </para><para>      
      The precise terms and conditions for copying, distribution and 
      modification follow.
    </para>
  </section>
  <section>
    <title>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
    </title>
    <section>
      <title>Section 0</title>
      <para>	
        This License applies to any program or other work which contains a 
	notice placed by the copyright holder saying it may be distributed 
	under the terms of this General Public License. The "Program", below, 
	refers to any such program or work, and a 
	<quote>work based on the Program
	</quote> means either 
	the Program or any derivative work under copyright law: that is to say,
	a work containing the Program or a portion of it, either verbatim or 
	with modifications and/or translated into another language. 
	(Hereinafter, translation is included without limitation in the term 
	<quote>modification
	</quote>.) Each licensee is addressed as <quote>you</quote>.
      </para><para>	
        Activities other than copying, distribution and modification are not 
	covered by this License; they are outside its scope. The act of running
	the Program is not restricted, and the output from the Program is 
	covered only if its contents constitute a work based on the Program 
	(independent of having been made by running the Program). Whether that
	is true depends on what the Program does.
      </para>
    </section>
    <section>
      <title>Section 1</title>
      <para>	
        You may copy and distribute verbatim copies of the Program's source 
	code as you receive it, in any medium, provided that you conspicuously 
	and appropriately publish on each copy an appropriate copyright notice 
	and disclaimer of warranty; 
	keep intact all the notices that refer to this License and to the 
	absence of any warranty; and give any other recipients of the Program 
	a copy of this License along with the Program.
      </para><para>	
        You may charge a fee for the physical act of transferring a copy, and 
	you may at your option offer warranty protection in exchange for a fee.
      </para>
    </section>
    <section>
      <title>Section 2</title>
      <para>	
        You may modify your copy or copies of the Program or any portion of it,
	thus forming a work based on the Program, and copy and distribute such 
	modifications or work under the terms of Section 1 above, provided 
	that you also meet all of these conditions:
      </para>
	<itemizedlist>
	  <listitem>
	    <para>	      
	      You must cause the modified files to carry prominent notices 
	      stating that you changed the files and the date of any change.
	    </para>
	  </listitem>
	  <listitem>
	    <para>	      
	      You must cause any work that you distribute or publish, that in 
	      whole or in part contains or is derived from the Program or any 
	      part thereof, to be licensed as a whole at no charge to all third
	      parties under the terms of this License.
	    </para>
	  </listitem>
	  <listitem>
	    <para>	      
	      If the modified program normally reads commands interactively 
	      when run, you must cause it, when started running for such 
	      interactive use in the most ordinary way, to print or display an 
	      announcement including an appropriate copyright notice and a 
	      notice that there is no warranty (or else, saying that you 
	      provide a warranty) and that users may redistribute the program 
	      under these conditions, and telling the user how to view a copy 
	      of this License. 
	    </para>
	      <blockquote>
		<title>Exception:
		</title>
		<para>		  
		  If the Program itself is interactive but does not normally 
		  print such an announcement, your work based on the Program 
		  is not required to print an announcement.) 
		</para>
	      </blockquote>
	  </listitem>
	</itemizedlist>
      <para>	
        These requirements apply to the modified work as a whole. If 
	identifiable sections of that work are not derived from the Program, 
	and can be reasonably considered independent and separate works in 
	themselves, then this License, and its terms, do not apply to those 
	sections when you distribute them as separate works. But when you 
	distribute the same sections as part of a whole which is a work based 
	on the Program, the distribution of the whole must be on the terms of 
	this License, whose permissions for other licensees extend to the 
	entire whole, and thus to each and every part regardless of who wrote 
	it.
      </para><para>	
        Thus, it is not the intent of this section to claim rights or contest 
	your rights to work written entirely by you; rather, the intent is to 
	exercise the right to control the distribution of derivative or 
	collective works based on the Program.
      </para><para>	
        In addition, mere aggregation of another work not based on the Program 
	with the Program (or with a work based on the Program) on a volume of 
	a storage or distribution medium does not bring the other work under 
	the scope of this License.
      </para>
    </section>
    <section>
      <title>Section 3
      </title>
      <para>	
        You may copy and distribute the Program (or a work based on it, under 
	Section 2 in object code or executable form under the terms of 
	Sections 1 and 2 above provided that you also do one of the following:
      </para>
	<itemizedlist>
	  <listitem>
	    <para>	
	      Accompany it with the complete corresponding machine-readable 
	      source code, which must be distributed under the terms of 
	      Sections 1 and 2 above on a medium customarily used for software 
	      interchange; or,
	    </para>
	  </listitem>
	  <listitem>
	    <para>	      
	      Accompany it with a written offer, valid for at least three 
	      years, to give any third party, for a charge no more than your 
	      cost of physically performing source distribution, a complete 
	      machine-readable copy of the corresponding source code, to be 
	      distributed under the terms of Sections 1 and 2 above on a medium
	      customarily used for software interchange; or,
	    </para>
	  </listitem>
	  <listitem>
	    <para>	      
	      Accompany it with the information you received as to the offer to
	      distribute corresponding source code. (This alternative is 
	      allowed only for noncommercial distribution and only if you 
	      received the program in object code or executable form with such 
	      an offer, in accord with Subsection b above.)
	    </para>
	  </listitem>
	</itemizedlist>
      <para>	
        The source code for a work means the preferred form of the work for 
	making modifications to it. For an executable work, complete source 
	code means all the source code for all modules it contains, plus any 
	associated interface definition files, plus the scripts used to control 
	compilation and installation of the executable. However, as a special 
	exception, the source code distributed need not include anything that 
	is normally distributed (in either source or binary form) with the 
	major components (compiler, kernel, and so on) of the operating system 
	on which the executable runs, unless that component itself accompanies 
	the executable.
      </para><para>	
        If distribution of executable or object code is made by offering 
	access to copy from a designated place, then offering equivalent access
	to copy the source code from the same place counts as distribution of 
	the source code, even though third parties are not compelled to copy 
	the source along with the object code.
      </para>
    </section>
    <section>
      <title>Section 4
      </title>
      <para>	
        You may not copy, modify, sublicense, or distribute the Program except 
	as expressly provided under this License. Any attempt otherwise to 
	copy, modify, sublicense or distribute the Program is void, and will 
	automatically terminate your rights under this License. However, 
	parties who have received copies, or rights, from you under this 
	License will not have their licenses terminated so long as such parties
	remain in full compliance.
      </para>
    </section>
    <section>
      <title>Section 5
      </title>
      <para>	
        You are not required to accept this License, since you have not signed 
	it. However, nothing else grants you permission to modify or distribute
	the Program or its derivative works. These actions are prohibited by 
	law if you do not accept this License. Therefore, by modifying 
	or distributing the Program (or any work based on the Program), you 
	indicate your acceptance of this License to do so, and all its terms 
	and conditions for copying, distributing or modifying the Program or 
	works based on it.
      </para>
    </section>
    <section>
      <title>Section 6
      </title>
      <para>	
        Each time you redistribute the Program (or any work based on the 
	Program), the recipient automatically receives a license from the 
	original licensor to copy, distribute or modify the Program subject 
	to these terms and conditions. You may not impose any further 
	restrictions on the recipients' exercise of the rights granted herein. 
	You are not responsible for enforcing compliance by third parties to 
	this License.
      </para>
    </section>
    <section>
      <title>Section 7
      </title>
      <para>	
        If, as a consequence of a court judgment or allegation of patent 
	infringement or for any other reason (not limited to patent issues), 
	conditions are imposed on you (whether by court order, agreement or 
	otherwise) that contradict the conditions of this License, they do not 
	excuse you from the conditions of this License. If you cannot 
	distribute so as to satisfy simultaneously your obligations under this 
	License and any other pertinent obligations, then as a consequence 
	you may not distribute the Program at all. For example, if a patent 
	license would not permit royalty-free redistribution of the Program by 
	all those who receive copies directly or indirectly through you, then 
	the only way you could satisfy both it and this License would be 
	to refrain entirely from distribution of the Program.
      </para><para>	
        If any portion of this section is held invalid or unenforceable under 
	any particular circumstance, the balance of the section is intended to 
	apply and the section as a whole is intended to apply in other 
	circumstances.
      </para><para>	
        It is not the purpose of this section to induce you to infringe any 
	patents or other property right claims or to contest validity of any 
	such claims; this section has the sole purpose of protecting the 
	integrity of the free software distribution system, which is 
	implemented by public license practices. Many people have made generous
	contributions to the wide range of software distributed through that 
	system in reliance on consistent application of that system; it is up 
	to the author/donor to decide if he or she is willing to distribute 
	software through any other system and a licensee cannot impose that 
	choice.
      </para>
      <para>	
        This section is intended to make thoroughly clear what is believed to 
	be a consequence of the rest of this License.
      </para>
    </section>
    <section>
      <title>Section 8
      </title>
      <para>	
        If the distribution and/or use of the Program is restricted in certain 
	countries either by patents or by copyrighted interfaces, the original 
	copyright holder who places the Program under this License may add an 
	explicit geographical distribution limitation excluding those 
	countries, so that distribution is permitted only in or among countries
	not thus excluded. In such case, this License incorporates the 
	limitation as if written in the body of this License.
      </para>
    </section>
    <section>
      <title>Section 9
      </title>
      <para>	
        The Free Software Foundation may publish revised and/or new versions 
	of the General Public License from time to time. Such new versions will
	be similar in spirit to the present version, but may differ in detail 
	to address new problems or concerns.
      </para><para>	
        Each version is given a distinguishing version number. If the Program 
	specifies a version number of this License which applies to it and 
	"any later version", you have the option of following the terms and 
	conditions either of that version or of any later version published by 
	the Free Software Foundation. If the Program does not specify a version
	number of this License, you may choose any version ever published by 
	the Free Software Foundation.
      </para>
    </section>
    <section>
      <title>Section 10
      </title>
      <para>	
        If you wish to incorporate parts of the Program into other free 
	programs whose distribution conditions are different, write to the 
	author to ask for permission. For software which is copyrighted 
	by the Free Software Foundation, write to the Free Software Foundation;
	we sometimes make exceptions for this. Our decision will be guided by 
	the two goals of preserving the free status of all derivatives of our 
	free software and of promoting the sharing and reuse of software 
	generally.
      </para>
    </section>
  </section>
  <section>
    <title>NO WARRANTY
    </title>
    <section>
      <title>Section 11
      </title>
      <para>	
        BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 
	FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
	OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 
	PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER 
	EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 
	THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS 
	WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 
	ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
      </para>
    </section>
    <section>
      <title>Section 12
      </title>
      <para>	
        IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 
	WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 
	REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR 
	DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL 
	DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM 
	(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED 
	INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF 
	THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR
	OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
      </para><para>
	END OF TERMS AND CONDITIONS
      </para>
    </section>
  </section>
  <section>
    <title>How to Apply These Terms to Your New Programs
    </title>
    <para>
      If you develop a new program, and you want it to be of the greatest
      possible use to the public, the best way to achieve this is to make it
      free software which everyone can redistribute and change under these 
      terms.
    </para><para>
      To do so, attach the following notices to the program.  It is safest
      to attach them to the start of each source file to most effectively
      convey the exclusion of warranty; and each file should have at least
      the "copyright" line and a pointer to where the full notice is found.
    </para><para>
      &lt;one line to give the program's name and a brief idea of what it 
      does.&gt;
      Copyright (C) &lt;year&gt;    &lt;name of author&gt;
    </para><para>
      This program is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation; either version 2 of the License, or
      (at your option) any later version.
    </para><para>
      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
    </para><para>
      You should have received a copy of the GNU General Public License
      along with this program; if not, write to the Free Software
      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
      USA
    </para><para>
      Also add information on how to contact you by electronic and paper mail.
    </para><para>
      If the program is interactive, make it output a short notice like this
      when it starts in an interactive mode:
    </para><para>
      Gnomovision version 69, Copyright (C) year name of author
      Gnomovision 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.
    </para><para>
      The hypothetical commands `show w' and `show c' should show the 
      appropriate parts of the General Public License.  Of course, the commands
      you use may be called something other than `show w' and `show c'; they 
      could even be mouse-clicks or menu items--whatever suits your program.
    </para><para>
      You should also get your employer (if you work as a programmer) or your
      school, if any, to sign a "copyright disclaimer" for the program, if
      necessary.  Here is a sample; alter the names:
    </para><para>
      Yoyodyne, Inc., hereby disclaims all copyright interest in the program
      `Gnomovision' (which makes passes at compilers) written by James Hacker.
    </para><para>
      &lt;signature of Ty Coon&gt;, 1 April 1989
      Ty Coon, President of Vice
    </para><para>
      This General Public License does not permit incorporating your program 
      into proprietary programs.  If your program is a subroutine library, you 
      may consider it more useful to permit linking proprietary applications 
      with the library.  If this is what you want to do, use the GNU Library 
      General Public License instead of this License.
    </para>
  </section>
</appendix>