Include bind in ndnboost.
diff --git a/ndnboost/test/test_observer.hpp b/ndnboost/test/test_observer.hpp
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+//  (C) Copyright Gennadiy Rozental 2005-2008.
+//  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        : $RCSfile$
+//
+//  Version     : $Revision: 49312 $
+//
+//  Description : defines abstract interface for test observer
+// ***************************************************************************
+
+#ifndef BOOST_TEST_TEST_OBSERVER_HPP_021005GER
+#define BOOST_TEST_TEST_OBSERVER_HPP_021005GER
+
+// Boost.Test
+#include <ndnboost/test/detail/fwd_decl.hpp>
+#include <ndnboost/test/detail/global_typedef.hpp>
+#include <ndnboost/test/detail/config.hpp>
+
+#include <ndnboost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace ndnboost {
+
+namespace unit_test {
+
+// ************************************************************************** //
+// **************                 test_observer                ************** //
+// ************************************************************************** //
+
+class BOOST_TEST_DECL test_observer {
+public:
+    // test observer interface
+    virtual void    test_start( counter_t /* test_cases_amount */ ) {}
+    virtual void    test_finish() {}
+    virtual void    test_aborted() {}
+
+    virtual void    test_unit_start( test_unit const& ) {}
+    virtual void    test_unit_finish( test_unit const&, unsigned long /* elapsed */ ) {}
+    virtual void    test_unit_skipped( test_unit const& ) {}
+    virtual void    test_unit_aborted( test_unit const& ) {}
+
+    virtual void    assertion_result( bool /* passed */ ) {}
+    virtual void    exception_caught( execution_exception const& ) {}
+
+    virtual int     priority() { return 0; }
+
+protected:
+    BOOST_TEST_PROTECTED_VIRTUAL ~test_observer() {}
+};
+
+} // unit_test
+
+} // namespace ndnboost
+
+//____________________________________________________________________________//
+
+#include <ndnboost/test/detail/enable_warnings.hpp>
+
+#endif // BOOST_TEST_TEST_OBSERVER_HPP_021005GER
+