stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/test/detail/workaround.hpp

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+//  (C) Copyright Gennadiy Rozental 2001.
+//  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)
+
+//  See http://www.boost.org/libs/test for the library home page.
+//
+//!@file
+//!@brief contains mics. workarounds
+// ***************************************************************************
+
+#ifndef BOOST_TEST_WORKAROUND_HPP_021005GER
+#define BOOST_TEST_WORKAROUND_HPP_021005GER
+
+// Boost
+#include <boost/config.hpp> // compilers workarounds and std::ptrdiff_t
+
+// STL
+#include <iterator>     // for std::distance
+
+#include <boost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace boost {
+namespace unit_test {
+namespace ut_detail {
+
+#ifdef BOOST_NO_STD_DISTANCE
+template <class T>
+std::ptrdiff_t distance( T const& x_, T const& y_ )
+{
+    std::ptrdiff_t res = 0;
+
+    std::distance( x_, y_, res );
+
+    return res;
+}
+
+//____________________________________________________________________________//
+
+#else
+using std::distance;
+#endif
+
+template <class T> inline void ignore_unused_variable_warning(const T&) {}
+
+} // namespace ut_detail
+} // namespace unit_test
+} // namespace boost
+
+//____________________________________________________________________________//
+
+#include <boost/test/detail/enable_warnings.hpp>
+
+#endif // BOOST_TEST_WORKAROUND_HPP_021005GER