LICENSE

License for the Verified Software Toolchain (VST)

1.  The "msl" subdirectory is Copyright (c) 2009-2013 by Andrew W. Appel,
Robert Dockins and Aquinas Hobor, and others,
and open-source licensed according to the terms in "msl/LICENSE".

2.  The "compcert" subdirectory is Copyright (c) 2004-2013 by INRIA,
and licensed according to the terms in "compcert/LICENSE";
basically, those files are dual licensed with a proprietary license
and an open-source license.
The "compcert_new" subdirectory is Copyright (c) 2004-2013 by INRIA;
WARNING: compcert_new contains some files that are not dual-licensed;
therefore you should not use compcert_new unless you satisfy
the terms of the CompCert license.

3. The "fcf" and "hmacfcf" subdirectories are Copyright (c) 2012-2015
by Adam Petcher and other contributors, and open-source licensed as 
per the fcf/LICENSE file.

4.  All other subdirectories are Copyright (c) 2007-2018 by Andrew W. Appel,
Lennart Beringer, Robert Dockins, Josiah Dodds, Aquinas Hobor,
Gordon Stewart, and Qinxiang Cao, and others,
and open-source licensed as follows:

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

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

- Redistribution 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.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR THE 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.