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

depends/x86_64-pc-linux-gnu/include/boost/fiber/detail/convert.hpp

@@ -0,0 +1,59 @@
+
+//          Copyright Oliver Kowalke 2013.
+// 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)
+
+#ifndef BOOST_FIBERS_DETAIL_CONVERT_H
+#define BOOST_FIBERS_DETAIL_CONVERT_H
+
+#include <chrono>
+#include <memory>
+
+#include <boost/config.hpp>
+
+#include <boost/fiber/detail/config.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_PREFIX
+#endif
+
+namespace boost {
+namespace fibers {
+namespace detail {
+
+inline
+std::chrono::steady_clock::time_point convert(
+        std::chrono::steady_clock::time_point const& timeout_time) noexcept {
+    return timeout_time;
+}
+
+template< typename Clock, typename Duration >
+std::chrono::steady_clock::time_point convert(
+        std::chrono::time_point< Clock, Duration > const& timeout_time) {
+    return std::chrono::steady_clock::now() + ( timeout_time - Clock::now() );
+}
+
+// suggested by Howard Hinnant
+template< typename T >
+inline
+T * convert( T * p) noexcept {
+    return p;
+}
+
+template< typename Pointer >
+inline
+typename std::pointer_traits< Pointer >::element_type *
+convert( Pointer p) noexcept {
+    return nullptr != p
+        ? to_raw_pointer( p.operator->() )
+        : nullptr;
+}
+
+}}}
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_FIBERS_DETAIL_CONVERT_H