add boost on mac

macx64/include/boost/beast/_experimental/test/error.hpp

@@ -0,0 +1,40 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_ERROR_HPP
+#define BOOST_BEAST_TEST_ERROR_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/core/error.hpp>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+/// Error codes returned from unit testing algorithms
+enum class error
+{
+    /** The test stream generated a simulated testing error
+
+        This error is returned by a @ref fail_count object
+        when it generates a simulated error.
+    */
+    test_failure = 1
+};
+
+} // test
+} // beast
+} // boost
+
+#include <boost/beast/_experimental/test/impl/error.hpp>
+#ifdef BOOST_BEAST_HEADER_ONLY
+#include <boost/beast/_experimental/test/impl/error.ipp>
+#endif
+
+#endif