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

depends/x86_64-pc-linux-gnu/include/boost/fusion/support/config.hpp

@@ -0,0 +1,99 @@
+/*=============================================================================
+    Copyright (c) 2014 Eric Niebler
+    Copyright (c) 2014 Kohei Takahashi
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_SUPPORT_CONFIG_01092014_1718)
+#define FUSION_SUPPORT_CONFIG_01092014_1718
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+#include <utility>
+
+#ifndef BOOST_FUSION_GPU_ENABLED
+#define BOOST_FUSION_GPU_ENABLED BOOST_GPU_ENABLED
+#endif
+
+// Enclose with inline namespace because unqualified lookup of GCC < 4.5 is broken.
+//
+//      namespace detail {
+//          struct foo;
+//          struct X { };
+//      }
+//
+//      template <typename T> void foo(T) { }
+//
+//      int main()
+//      {
+//            foo(detail::X());
+//            // prog.cc: In function 'int main()':
+//            // prog.cc:2: error: 'struct detail::foo' is not a function,
+//            // prog.cc:6: error: conflict with 'template<class T> void foo(T)'
+//            // prog.cc:10: error: in call to 'foo'
+//      }
+namespace boost { namespace fusion { namespace detail
+{
+    namespace barrier { }
+    using namespace barrier;
+}}}
+#define BOOST_FUSION_BARRIER_BEGIN namespace barrier {
+#define BOOST_FUSION_BARRIER_END   }
+
+
+#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1900))
+// All of rvalue-reference ready MSVC don't perform implicit conversion from
+// fundamental type to rvalue-reference of another fundamental type [1].
+//
+// Following example doesn't compile
+//
+//   int i;
+//   long &&l = i; // sigh..., std::forward<long&&>(i) also fail.
+//
+// however, following one will work.
+//
+//   int i;
+//   long &&l = static_cast<long &&>(i);
+//
+// OK, now can we replace all usage of std::forward to static_cast? -- I say NO!
+// All of rvalue-reference ready Clang doesn't compile above static_cast usage [2], sigh...
+//
+// References:
+// 1. https://connect.microsoft.com/VisualStudio/feedback/details/1037806/implicit-conversion-doesnt-perform-for-fund
+// 2. http://llvm.org/bugs/show_bug.cgi?id=19917
+//
+// Tentatively, we use static_cast to forward if run under MSVC.
+#   define BOOST_FUSION_FWD_ELEM(type, value) static_cast<type&&>(value)
+#else
+#   define BOOST_FUSION_FWD_ELEM(type, value) std::forward<type>(value)
+#endif
+
+
+// Workaround for LWG 2408: C++17 SFINAE-friendly std::iterator_traits.
+// http://cplusplus.github.io/LWG/lwg-defects.html#2408
+//
+// - GCC 4.5 enables the feature under C++11.
+//   https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01105.html
+//
+// - MSVC 10.0 implements iterator intrinsics; MSVC 13.0 implements LWG2408.
+#if (defined(BOOST_LIBSTDCXX_VERSION) && (BOOST_LIBSTDCXX_VERSION < 40500) && \
+     defined(BOOST_LIBSTDCXX11)) || \
+    (defined(BOOST_MSVC) && (1600 <= BOOST_MSVC && BOOST_MSVC < 1900))
+#   define BOOST_FUSION_WORKAROUND_FOR_LWG_2408
+namespace std
+{
+    template <typename>
+    struct iterator_traits;
+}
+#endif
+
+
+// Workaround for older GCC that doesn't accept `this` in constexpr.
+#if BOOST_WORKAROUND(BOOST_GCC, < 40700)
+#define BOOST_FUSION_CONSTEXPR_THIS
+#else
+#define BOOST_FUSION_CONSTEXPR_THIS BOOST_CONSTEXPR
+#endif
+
+#endif