add boost on mac

macx64/include/boost/stacktrace/detail/unwind_base_impls.hpp

@@ -0,0 +1,50 @@
+// Copyright Antony Polukhin, 2016-2019.
+//
+// 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)
+
+#ifndef BOOST_STACKTRACE_DETAIL_UNWIND_BASE_IMPLS_HPP
+#define BOOST_STACKTRACE_DETAIL_UNWIND_BASE_IMPLS_HPP
+
+#include <boost/config.hpp>
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#   pragma once
+#endif
+
+#include <boost/stacktrace/frame.hpp>
+
+namespace boost { namespace stacktrace { namespace detail {
+
+struct to_string_using_nothing {
+    std::string res;
+
+    void prepare_function_name(const void* addr) {
+        res = boost::stacktrace::frame(addr).name();
+    }
+
+    bool prepare_source_location(const void* /*addr*/) const BOOST_NOEXCEPT {
+        return false;
+    }
+};
+
+template <class Base> class to_string_impl_base;
+typedef to_string_impl_base<to_string_using_nothing> to_string_impl;
+
+inline std::string name_impl(const void* /*addr*/) {
+    return std::string();
+}
+
+} // namespace detail
+
+std::string frame::source_file() const {
+    return std::string();
+}
+
+std::size_t frame::source_line() const {
+    return 0;
+}
+
+}} // namespace boost::stacktrace
+
+#endif // BOOST_STACKTRACE_DETAIL_UNWIND_BASE_IMPLS_HPP