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/no_exceptions_support.hpp

@@ -0,0 +1,87 @@
+#ifndef BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_
+#define BOOST_DETAIL_NO_EXCEPTIONS_SUPPORT_HPP_
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+//----------------------------------------------------------------------
+// (C) Copyright 2004 Pavel Vozenilek.
+// Use, modification and distribution is subject to 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)
+//
+//
+// This file contains helper macros used when exception support may be
+// disabled (as indicated by macro BOOST_NO_EXCEPTIONS).
+//
+// Before picking up these macros you may consider using RAII techniques
+// to deal with exceptions - their syntax can be always the same with 
+// or without exception support enabled.
+//
+
+/* Example of use:
+
+void foo() {
+  BOOST_TRY {
+    ...
+  } BOOST_CATCH(const std::bad_alloc&) {
+      ...
+      BOOST_RETHROW
+  } BOOST_CATCH(const std::exception& e) {
+      ...
+  }
+  BOOST_CATCH_END
+}
+
+With exception support enabled it will expand into:
+
+void foo() {
+  { try {
+    ...
+  } catch (const std::bad_alloc&) {
+      ...
+      throw;
+  } catch (const std::exception& e) {
+      ...
+  }
+  }
+}
+
+With exception support disabled it will expand into:
+
+void foo() {
+  { if(true) {
+    ...
+  } else if (false) {
+      ...
+  } else if (false)  {
+      ...
+  }
+  }
+}
+*/
+//----------------------------------------------------------------------
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+#if !(defined BOOST_NO_EXCEPTIONS)
+#    define BOOST_TRY { try
+#    define BOOST_CATCH(x) catch(x)
+#    define BOOST_RETHROW throw;
+#    define BOOST_CATCH_END }
+#else
+#    if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+#        define BOOST_TRY { if ("")
+#        define BOOST_CATCH(x) else if (!"")
+#    else
+#        define BOOST_TRY { if (true)
+#        define BOOST_CATCH(x) else if (false)
+#    endif
+#    define BOOST_RETHROW
+#    define BOOST_CATCH_END }
+#endif
+
+
+#endif