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libc++ and compiler_rt are now dual licensed under UIUC and MIT license. 

llvm-svn: 119387
This commit is contained in:
Chris Lattner 2010-11-16 21:32:53 +00:00
parent 6397420a30
commit fced6e2587
1 changed files with 20 additions and 9 deletions
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27
llvm/docs/DeveloperPolicy.html
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@ -533,20 +533,16 @@ Changes</a></div>
<div class="doc_subsection"><a name="license">License</a></div>
<div class="doc_text">
<p>We intend to keep LLVM perpetually open source and to use a liberal open
source license. The current license is the
source license. All of the code in LLVM is available under the
<a href="http://www.opensource.org/licenses/UoI-NCSA.php">University of
Illinois/NCSA Open Source License</a>, which boils down to this:</p>
<ul>
<li>You can freely distribute LLVM.</li>
<li>You must retain the copyright notice if you redistribute LLVM.</li>
<li>Binaries derived from LLVM must reproduce the copyright notice (e.g. in
an included readme file).</li>
<li>Binaries derived from LLVM must reproduce the copyright notice (e.g. in an
included readme file).</li>
<li>You can't use our names to promote your LLVM derived products.</li>
<li>There's no warranty on LLVM at all.</li>
</ul>
@ -557,6 +553,21 @@ Changes</a></div>
read the <a href="http://www.opensource.org/licenses/UoI-NCSA.php">License</a>
if further clarification is needed.</p>
<p>In addition to the UIUC license, the runtime library components of LLVM
(<b>compiler_rt and libc++</b>) are also licensed under the <a
href="http://www.opensource.org/licenses/mit-license.php">MIT license</a>,
which does not contain the binary redistribution clause. As a user of these
runtime libraries, it means that you can choose to use the code under either
license (and thus don't need the binary redistribution clause), and as a
contributor to the code that you agree that any contributions to these
libraries be licensed under both licenses. We feel that this is important
for runtime libraries, because they are implicitly linked into applications
and therefore should not subject those applications to the binary
redistribution clause. This also means that it is ok to move code from (e.g.)
libc++ to the LLVM core without concern, but that code cannot be moved from
the LLVM core to libc++ without the copyright owner's permission.
</p>
<p>Note that the LLVM Project does distribute llvm-gcc, <b>which is GPL.</b>
This means that anything "linked" into llvm-gcc must itself be compatible
with the GPL, and must be releasable under the terms of the GPL. This
@ -570,7 +581,7 @@ Changes</a></div>
<p>We have no plans to change the license of LLVM. If you have questions or
comments about the license, please contact the
<a href="mailto:llvm-oversight@cs.uiuc.edu">LLVM Oversight Group</a>.</p>
<a href="mailto:llvmdev@cs.uiuc.edu">LLVM Developer's Mailing List</a>.</p>
</div>
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