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diff --git a/3rdParty/Boost/src/boost/mpl/eval_if.hpp b/3rdParty/Boost/src/boost/mpl/eval_if.hpp
new file mode 100644
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+++ b/3rdParty/Boost/src/boost/mpl/eval_if.hpp
@@ -0,0 +1,71 @@
+
+#ifndef BOOST_MPL_EVAL_IF_HPP_INCLUDED
+#define BOOST_MPL_EVAL_IF_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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/mpl for documentation.
+
+// $Id: eval_if.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
+// $Revision: 49267 $
+
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/gcc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(C)
+    , typename BOOST_MPL_AUX_NA_PARAM(F1)
+    , typename BOOST_MPL_AUX_NA_PARAM(F2)
+    >
+struct eval_if
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
+     || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
+        && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
+        )
+{
+    typedef typename if_<C,F1,F2>::type f_;
+    typedef typename f_::type type;
+#else
+    : if_<C,F1,F2>::type
+{
+#endif
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(3,eval_if,(C,F1,F2))
+};
+
+// (almost) copy & paste in order to save one more 
+// recursively nested template instantiation to user
+template<
+      bool C
+    , typename F1
+    , typename F2
+    >
+struct eval_if_c
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
+     || ( BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, >= 0x0300) \
+        && BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304)) \
+        )
+{
+    typedef typename if_c<C,F1,F2>::type f_;
+    typedef typename f_::type type;
+#else
+    : if_c<C,F1,F2>::type
+{
+#endif
+};
+
+BOOST_MPL_AUX_NA_SPEC(3, eval_if)
+
+}}
+
+#endif // BOOST_MPL_EVAL_IF_HPP_INCLUDED