License
=======

The software is provided under a BSD-3-Clause license.

::

    Copyright (c) <year> <owner>. All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:

    -  Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimer.

    -  Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution.

    -  Neither the name of the copyright holder nor the names of its
    contributors may be used to endorse or promote products derived from this
    software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.

SPDX Identifiers
----------------

Individual files contain the following tag instead of the full license text.

::

    SPDX-License-Identifier:    BSD-3-Clause

This enables machine processing of license information based on the SPDX
License Identifiers that are here available: http://spdx.org/licenses/

Other Projects
--------------

This project contains code from other projects as listed below. The original
license text is included in those source files.

-  The libc source code is derived from `FreeBSD`_ and `SCC`_. FreeBSD uses
   various BSD licenses, including BSD-3-Clause and BSD-2-Clause. The SCC code
   is used under the BSD-3-Clause license with the author's permission.

-  The `LLVM compiler-rt`_ source code is disjunctively dual licensed
   (NCSA OR MIT). It is used by this project under the terms of the NCSA
   license (also known as the University of Illinois/NCSA Open Source License),
   which is a permissive license compatible with BSD-3-Clause. Any
   contributions to this code must be made under the terms of both licenses.

.. _FreeBSD: http://www.freebsd.org
.. _SCC: http://www.simple-cc.org/
.. _LLVM compiler-rt: https://compiler-rt.llvm.org/