Added the parts of boost which we need to access shared_ptr and weak_ptr. This will allow for improved memory management of large volumes.

library/include/boost/detail/spinlock.hpp

@@ -0,0 +1,47 @@
+#ifndef BOOST_DETAIL_SPINLOCK_HPP_INCLUDED
+#define BOOST_DETAIL_SPINLOCK_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  boost/detail/spinlock.hpp
+//
+//  Copyright (c) 2008 Peter Dimov
+//
+//  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)
+//
+//  struct spinlock
+//  {
+//      void lock();
+//      bool try_lock();
+//      void unlock();
+//
+//      class scoped_lock;
+//  };
+//
+//  #define BOOST_DETAIL_SPINLOCK_INIT <unspecified>
+//
+
+#include <boost/config.hpp>
+
+#if defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
+#  include <boost/detail/spinlock_gcc_arm.hpp>
+#elif defined(__GNUC__) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 ) && !defined( __arm__ ) && !defined( __hppa ) && ( !defined( __INTEL_COMPILER ) || defined( __ia64__ ) )
+#  include <boost/detail/spinlock_sync.hpp>
+#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+#  include <boost/detail/spinlock_w32.hpp>
+#elif defined(BOOST_HAS_PTHREADS)
+#  include <boost/detail/spinlock_pt.hpp>
+#elif !defined(BOOST_HAS_THREADS)
+#  include <boost/detail/spinlock_nt.hpp>
+#else
+#  error Unrecognized threading platform
+#endif
+
+#endif // #ifndef BOOST_DETAIL_SPINLOCK_HPP_INCLUDED