Add __mulodi4 source to src/ext

We need to define this function when compiling with clang -m32 -ftrapv,
since otherwise we get link errors, since apparently some versions
of libclang_rt.builtins don't define a version of it that works? Or
clang doesn't know to look for it?

This definition is taken from the LLVM source at
  https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/builtins/mulodi4.c

I've also included the license (dual BSD-ish/MIT-ish).

1 files changed, 104 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
index bc0ac4195b..56d1002251 100644
--- a/LICENSE
+++ b/LICENSE
@@ -271,6 +271,110 @@ src/ext/readpassphrase.[ch] are distributed under this license:
   Materiel Command, USAF, under agreement number F39502-99-1-0512.
 
 ===============================================================================
+src/ext/mulodi4.c is distributed under this license:
+
+     =========================================================================
+     compiler_rt License
+     =========================================================================
+
+     The compiler_rt library is dual licensed under both the
+     University of Illinois "BSD-Like" license and the MIT license.
+     As a user of this code you may choose to use it under either
+     license.  As a contributor, you agree to allow your code to be
+     used under both.
+
+     Full text of the relevant licenses is included below.
+
+     =========================================================================
+
+     University of Illinois/NCSA
+     Open Source License
+
+     Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
+
+     All rights reserved.
+
+     Developed by:
+
+         LLVM Team
+
+         University of Illinois at Urbana-Champaign
+
+         http://llvm.org
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+
+     =========================================================================
+
+     Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
+
+     Permission is hereby granted, free of charge, to any person
+     obtaining a copy of this software and associated documentation
+     files (the "Software"), to deal in the Software without
+     restriction, including without limitation the rights to use,
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+     conditions:
+
+     The above copyright notice and this permission notice shall be
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+
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+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+
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+
+===============================================================================
 If you got Tor as a static binary with OpenSSL included, then you should know:
  "This product includes software developed by the OpenSSL Project
  for use in the OpenSSL Toolkit (http://www.openssl.org/)"