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

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-revision 1.115 by jturner,
Sat Jun  9 19:41:16 2012 UTC
+revision 1.124 by ineiev,
Tue Oct 15 04:42:00 2013 UTC
 Line 1
  <!--#include virtual="/server/header.html" -->
+ <!-- Parent-Version: 1.75 -->
- <title>What is free software? - GNU Project - Free Software Foundation (FSF)</title>
+ <title>What is free software?
+ - GNU Project - Free Software Foundation</title>
  <meta http-equiv="Keywords" content="GNU, FSF, Free Software Foundation, Linux, Emacs, GCC, Unix, Free Software, Operating System, GNU Kernel, HURD, GNU HURD, Hurd" />
  <meta http-equiv="Description" content="Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use." />
- <link rel="alternate" title="What's New" href="http://www.gnu.org/rss/whatsnew.rss" type="application/rss+xml" />
- <link rel="alternate" title="New Free Software" href="http://www.gnu.org/rss/quagga.rss" type="application/rss+xml" />
- <!--#include virtual="/server/banner.html" -->
  <!--#include virtual="/philosophy/po/free-sw.translist" -->
+ <!--#include virtual="/server/banner.html" -->
  <h2>What is free software?</h2>
-Line 107 
 make them.
+Line 106 
 make them.
  <p>
  In order for freedoms 1 and 3 (the freedom to make changes and the
- freedom to publish improved versions) to be meaningful, you must have
+ freedom to publish the changed versions) to be meaningful, you must have
  access to the source code of the program.  Therefore, accessibility of
  source code is a necessary condition for free software.  Obfuscated
  &ldquo;source code&rdquo; is not real source code and does not count
-Line 173 
 you always have the freedom to copy and
+Line 172 
 you always have the freedom to copy and
  <p>
  Whether a change constitutes an improvement is a subjective matter.
- If your modifications are limited, in substance, to changes that
+ If your right to modify a program is limited, in substance, to changes that
- someone else considers an improvement, that is not freedom.
+ someone else considers an improvement, that program is not free.
  </p>
  <p>
-Line 190 
 the program, so you won't have trouble m
+Line 189 
 the program, so you won't have trouble m
  </p>
  <p>
- A special issue arises when a license requires changing the name by
- which the program will be invoked from other programs.  That
- effectively hampers you from releasing your changed version so that it
- can replace the original when invoked by those other programs.  This
- sort of requirement is acceptable only if there's a suitable aliasing
- facility that allows you to specify the original program's name as an
- alias for the modified version.</p>
- <p>
  Rules that &ldquo;if you make your version available in this way, you
  must make it available in that way also&rdquo; can be acceptable too,
  on the same condition.  An example of such an acceptable rule is one
-Line 211 
 are also acceptable.
+Line 201 
 are also acceptable.
  </p>
  <p>
+ A special issue arises when a license requires changing the name by
+ which the program will be invoked from other programs.  That
+ effectively hampers you from releasing your changed version so that it
+ can replace the original when invoked by those other programs.  This
+ sort of requirement is acceptable only if there's a suitable aliasing
+ facility that allows you to specify the original program's name as an
+ 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
-Line 229 
 eliminate or override these restrictions
+Line 228 
 eliminate or override these restrictions
  is refuse to impose them as conditions of use of the program.  In this
  way, the restrictions will not affect activities and people outside the
  jurisdictions of these governments.  Thus, free software licenses
- must not require obedience to any export regulations as a condition of
+ must not require obedience to any nontrivial export regulations as a
- any of the essential freedoms.
+ condition of exercising any of the essential freedoms.
+ </p>
+ <p>
+ Merely mentioning the existence of export regulations, without making
+ them a condition of the license itself, is acceptable since it does
+ not restrict users.  If an export regulation is actually trivial for
+ free software, then requiring it as a condition is not an actual
+ problem; however, it is a potential problem, since a later change in
+ export law could make the requirement nontrivial and thus render the
+ software nonfree.
  </p>
  <p>
-Line 299 
 help you can ensure that the license rea
+Line 308 
 help you can ensure that the license rea
  and avoid various practical problems.
  </p>
- <h2 id="beyond-software">Beyond Software</h2>
+ <h3 id="beyond-software">Beyond Software</h3>
  <p>
  <a href="/philosophy/free-doc.html">Software manuals must be free</a>,
-Line 321 
 has been extended to a definition of <a
+Line 330 
 has been extended to a definition of <a
  free cultural works</a> applicable to any kind of works.
  </p>
- <h2 id="open-source">Open Source?</h2>
+ <h3 id="open-source">Open Source?</h3>
  <p>
  Another group has started using the term &ldquo;open source&rdquo; to mean
-Line 332 
 word &ldquo;open&rdquo; <a href="/philos
+Line 341 
 word &ldquo;open&rdquo; <a href="/philos
  never refers to freedom</a>.
  </p>
- <h2 id="History">History</h2>
+ <h3 id="History">History</h3>
  <p>From time to time we revise this Free Software Definition.  Here is
- the list of changes, along with links to show exactly what was
+ the list of substantive changes, along with links to show exactly what
- changed.</p>
+ was changed.</p>
  <ul>
+ <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>
  <li><a href="http://web.cvs.savannah.gnu.org/viewvc/www/philosophy/free-sw.html?root=www&amp;r1=1.110&amp;r2=1.111">Version
 .111</a>: Clarify 1.77 by saying that only
  retroactive <em>restrictions</em> are unacceptable.  The copyright
-Line 430 
 complete list of changes to the page thr
+Line 443 
 complete list of changes to the page thr
  the <a href="http://web.cvs.savannah.gnu.org/viewvc/www/philosophy/free-sw.html?root=www&amp;view=log">cvsweb
  interface</a>.</p>
- </div>
+ </div><!-- for id="content", starts in the include above -->
  <!--#include virtual="/server/footer.html" -->
  <div id="footer">
- <p>
+ <p>Please send general FSF &amp; GNU inquiries to
- Please send FSF &amp; GNU inquiries to
  <a href="mailto:gnu@gnu.org">&lt;gnu@gnu.org&gt;</a>.
  There are also <a href="/contact/">other ways to contact</a>
- the FSF.
+ the FSF.  Broken links and other corrections or suggestions can be sent
- <br />
+ to <a href="mailto:webmasters@gnu.org">&lt;webmasters@gnu.org&gt;</a>.</p>
- Please send broken links and other corrections or suggestions to
- <a href="mailto:webmasters@gnu.org">&lt;webmasters@gnu.org&gt;</a>.
+ <p><!-- TRANSLATORS: Ignore the original text in this paragraph,
- </p>
+         replace it with the translation of these two:
+         We work hard and do our best to provide accurate, good quality
+         translations.  However, we are not exempt from imperfection.
+         Please send your comments and general suggestions in this regard
+         to <a href="mailto:web-translators@gnu.org">
+         &lt;web-translators@gnu.org&gt;</a>.</p>
+         <p>For information on coordinating and submitting translations of
+         our web pages, see <a
+         href="/server/standards/README.translations.html">Translations
+         README</a>. -->
+ Please see the <a
+ href="/server/standards/README.translations.html">Translations
+ README</a> for information on coordinating and submitting translations
+ of this article.</p>
+ <!-- Regarding copyright, in general, standalone pages (as opposed to
+      files generated as part of manuals) on the GNU web server should
+      be under CC BY-ND 3.0 US.  Please do NOT change or remove this
+      without talking with the webmasters or licensing team first.
+      Please make sure the copyright date is consistent with the
+      document.  For web pages, it is ok to list just the latest year the
+      document was modified, or published.
+      If you wish to list earlier years, that is ok too.
+      Either "2001, 2002, 2003" or "2001-2003" are ok for specifying
+      years, as long as each year in the range is in fact a copyrightable
+      year, i.e., a year in which the document was published (including
+      being publicly visible on the web or in a revision control system).
+      There is more detail about copyright years in the GNU Maintainers
+      Information document, www.gnu.org/prep/maintain. -->
- <p>
+ <p>Copyright &copy; 1996-2002, 2004-2007, 2009, 2010, 2012, 2013
- For information on coordinating and submitting translations of this
+ Free Software Foundation, Inc.</p>
- article, see <a
- href="/server/standards/README.translations.html">Translations README</a>.
- </p>
- <p>
- Copyright &copy; 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004,
-, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
- </p>
  <p>This page is licensed under a <a rel="license"
  href="http://creativecommons.org/licenses/by-nd/3.0/us/">Creative
- Commons Attribution-NoDerivs 3.0 United States License</a>.
+ Commons Attribution-NoDerivs 3.0 United States License</a>.</p>
- </p>
- <p>
+ <!--#include virtual="/server/bottom-notes.html" -->
- Updated:
+ <p>Updated:
  <!-- timestamp start -->
  $Date$
  <!-- timestamp end -->
  </p>
  </div>
  </div>
  </body>
  </html>

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