/[www]/www/philosophy/free-sw.html

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-revision 1.126 by rms,
Fri Dec 20 09:31:03 2013 UTC
+revision 1.132 by ineiev,
Fri Mar 14 04:04:58 2014 UTC
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  <!--#include virtual="/server/header.html" -->
- <!-- Parent-Version: 1.75 -->
+ <!-- Parent-Version: 1.76 -->
  <title>What is free software?
  - GNU Project - Free Software Foundation</title>
 Line 26 
 software.
  <p>
  &ldquo;Free software&rdquo; means software that respects users'
- freedom and community.  Roughly, <b>the users have the freedom to run,
+ freedom and community.  Roughly, it means that <b>the users have the
- copy, distribute, study, change and improve the software</b>.
+ freedom to run, copy, distribute, study, change and improve the
+ software</b>.  Thus, &ldquo;free software&rdquo; is a matter of
+ liberty, not price.  To understand the concept, you should think of
+ &ldquo;free&rdquo; as in &ldquo;free speech,&rdquo; not as in
+ &ldquo;free beer&rdquo;.
  </p>
  <p>
- Thus, &ldquo;free software&rdquo; is a matter of liberty, not price.
+ We campaign for these freedoms because everyone deserves them.  With
- To understand the concept, you should think of &ldquo;free&rdquo; as
+ these freedoms, the users (both individually and collectively) control
- in &ldquo;free speech,&rdquo; not as in &ldquo;free beer&rdquo;.
+ the program and what it does for them.  When users don't control the
- </p>
+ program, we call it a &ldquo;nonfree&rdquo; or
+ &ldquo;proprietary&rdquo; program.  The nonfree program controls the
- <p>
+ users, and the developer controls the program; this makes the
- With these freedoms, the users (both individually and collectively)
+ program <a href="/philosophy/free-software-even-more-important.html">
- control the program and what it does for them.  When users don't
+ an instrument of unjust power</a>.
- control the program, the program controls the users.  The developer
- controls the program, and through it exercises power over the users.
- Therefore, a &ldquo;nonfree&rdquo; or &ldquo;proprietary&rdquo; program
- is <a href="/philosophy/free-software-even-more-important.html"> an
- instrument of unjust power</a>.
  </p>
  <p>
-Line 169 
 the central freedoms; rather it protects
+Line 168 
 the central freedoms; rather it protects
  </p>
  <p>
+ In the GNU project, we use <a href="/copyleft/copyleft.html">
+ copyleft </a> to protect the four freedoms legally for everyone.  We
+ believe there are important reasons why
+ <a href="/philosophy/pragmatic.html">it is better to use
+ copyleft</a>.  However,
+ <a href="/philosophy/categories.html#Non-CopyleftedFreeSoftware">
+ noncopylefted free software</a> is ethical
+ too.  See <a href="/philosophy/categories.html">Categories of Free
+ Software</a> for a description of how &ldquo;free software,&rdquo;
+ &ldquo;copylefted software&rdquo; and other categories of software
+ relate to each other.
+ </p>
+ <p>
  &ldquo;Free software&rdquo; does not mean &ldquo;noncommercial&rdquo;.  A free
  program must be available for commercial use, commercial development,
  and commercial distribution.  Commercial development of free software
-Line 219 
 facility that allows you to specify the
+Line 232 
 facility that allows you to specify the
  alias for the modified version.</p>
  <p>
- In the GNU project, we use
- <a href="/copyleft/copyleft.html">copyleft</a>
- to protect these freedoms legally for everyone.  But
- <a href="/philosophy/categories.html#Non-CopyleftedFreeSoftware">noncopylefted
- free software</a> also exists.  We believe there are important reasons why
- <a href="/philosophy/pragmatic.html">it is better to use copyleft</a>,
- but if your program is noncopylefted free software, it is still basically
- ethical. (See <a href="/philosophy/categories.html">Categories of Free Software</a> for a description of how &ldquo;free software,&rdquo; &ldquo;copylefted software&rdquo; and other categories of software relate to each other.)
- </p>
- <p>
  Sometimes government <a id="exportcontrol">export control regulations</a>
  and trade sanctions can constrain your freedom to distribute copies of
  programs internationally.  Software developers do not have the power to
-Line 252 
 software nonfree.
+Line 254 
 software nonfree.
  </p>
  <p>
+ A free license may not require compliance with the license of a
+ nonfree program.  Thus, for instance, if a license requires you to
+ comply with the licenses of &ldquo;all the programs you use&rdquo;, in
+ the case of a user that runs nonfree programs this would require
+ compliance with the licenses of those nonfree programs; that makes the
+ license nonfree.
+ </p>
+ <p>
+ It is acceptable for a free license to specify which jurisdiction's
+ law applies, or where litigation must be done, or both.
+ </p>
+ <p>
  Most free software licenses are based on copyright, and there are limits
  on what kinds of requirements can be imposed through copyright.  If a
  copyright-based license respects freedom in the ways described above, it
-Line 358 
 was changed.</p>
+Line 374 
 was changed.</p>
  <ul>
+ <li><a href="http://web.cvs.savannah.gnu.org/viewvc/www/philosophy/free-sw.html?root=www&amp;r1=1.130&amp;r2=1.131">Version
+.131</a>: A free license may not require compliance with a nonfree license
+ of another program.</li>
+ <li><a href="http://web.cvs.savannah.gnu.org/viewvc/www/philosophy/free-sw.html?root=www&amp;r1=1.128&amp;r2=1.129">Version
+.129</a>: State explicitly that choice of law and choice of forum
+ specifications are allowed.  (This was always our policy.)</li>
  <li><a href="http://web.cvs.savannah.gnu.org/viewvc/www/philosophy/free-sw.html?root=www&amp;r1=1.121&amp;r2=1.122">Version
 .122</a>: An export control requirement is a real problem if the
  requirement is nontrivial; otherwise it is only a potential problem.</li>
-Line 462 
 interface</a>.</p>
+Line 486 
 interface</a>.</p>
  </div><!-- for id="content", starts in the include above -->
  <!--#include virtual="/server/footer.html" -->
  <div id="footer">
+ <div class="unprintable">
  <p>Please send general FSF &amp; GNU inquiries to
  <a href="mailto:gnu@gnu.org">&lt;gnu@gnu.org&gt;</a>.
-Line 486 
 Please see the <a
+Line 511 
 Please see the <a
  href="/server/standards/README.translations.html">Translations
  README</a> for information on coordinating and submitting translations
  of this article.</p>
+ </div>
  <!-- Regarding copyright, in general, standalone pages (as opposed to
       files generated as part of manuals) on the GNU web server should
-Line 513 
 Commons Attribution-NoDerivs 3.0 United
+Line 539 
 Commons Attribution-NoDerivs 3.0 United
  <!--#include virtual="/server/bottom-notes.html" -->
- <p>Updated:
+ <p></p><p class="unprintable">Updated:
  <!-- timestamp start -->
  $Date$
  <!-- timestamp end -->

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