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

depends/x86_64-pc-linux-gnu/include/boost/mpi/inplace.hpp

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+// Copyright (C) 2005-2006 Alain Miniussi <alain.miniussi -at- oca.eu>.
+
+// 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)
+
+// Message Passing Interface 1.1 -- Section 4. MPI Collectives
+
+/** @file inplace.hpp
+ *
+ *  This header provides helpers to indicate to MPI collective operation
+ *  that a buffer can be use both as an input and output.
+ */
+#ifndef BOOST_MPI_INPLACE_HPP
+#define BOOST_MPI_INPLACE_HPP
+
+#include <boost/mpi/communicator.hpp>
+#include <vector>
+
+namespace boost { namespace mpi {
+
+/**
+ *  @brief Wrapper type to explicitly indicate that a input data 
+ * can be overriden with an output value.
+ */
+template <typename T>
+struct inplace_t {
+  inplace_t(T& inout) : buffer(inout) {}
+  T& buffer;
+};
+
+template <typename T>
+struct inplace_t<T*> {
+  inplace_t(T* inout) : buffer(inout) {}
+  T* buffer;
+};
+
+
+/**
+ *  @brief Wrapp a input data to indicate that it can be overriden 
+ *  with an ouput value.
+ *  @param inout the contributing input value, it will be overriden 
+ *  with the output value where one is expected. If it is a pointer, 
+ *  the number of elements will be provided separatly.
+ *  @returns The wrapped value or pointer.
+ */
+template<typename T>
+inplace_t<T>
+inplace(T& inout) { 
+  return inplace_t<T>(inout);
+}
+/**
+ * \overload
+ */
+template<typename T>
+inplace_t<T*>
+inplace(T* inout) { 
+  return inplace_t<T*>(inout);
+}
+} }  // end namespace boost::mpi
+
+#endif // BOOST_MPI_INPLACE_HPP
+