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diff --git a/contrib/libs/libmysql_r/include/my_murmur3.h b/contrib/libs/libmysql_r/include/my_murmur3.h
new file mode 100644
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+++ b/contrib/libs/libmysql_r/include/my_murmur3.h
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+#ifndef MY_MURMUR3_INCLUDED
+#define MY_MURMUR3_INCLUDED
+
+/* Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License, version 2.0,
+   as published by the Free Software Foundation.
+
+   This program is also distributed with certain software (including
+   but not limited to OpenSSL) that is licensed under separate terms,
+   as designated in a particular file or component or in included license
+   documentation.  The authors of MySQL hereby grant you an additional
+   permission to link the program and your derivative works with the
+   separately licensed software that they have included with MySQL.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License, version 2.0, for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+/**
+  @file include/my_murmur3.h
+*/
+
+#include <stddef.h>
+
+#include "my_inttypes.h"
+#include "my_macros.h"
+
+uint32 murmur3_32(const uchar *key, size_t len, uint32 seed);
+
+#endif /* MY_MURMUR3_INCLUDED */