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nixpkgs/pkgs/development/libraries/boost/cygwin-fedora-boost-1.57.0-move-is_class.patch

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diff -up ./move/core.hpp~ ./move/core.hpp
--- a/boost/move/core.hpp~ 2015-02-09 17:33:35.000000000 +0100
+++ b/boost/move/core.hpp 2015-02-13 13:54:52.012130813 +0100
@@ -43,6 +43,7 @@
#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
#include <boost/move/detail/meta_utils.hpp>
+ #include <boost/type_traits/is_class.hpp>
//Move emulation rv breaks standard aliasing rules so add workarounds for some compilers
#if defined(__GNUC__) && (__GNUC__ >= 4) && \
@@ -65,7 +66,7 @@
template <class T>
class rv
: public ::boost::move_detail::if_c
- < ::boost::move_detail::is_class_or_union<T>::value
+ < ::boost::is_class<T>::value
, T
, ::boost::move_detail::nat
>::type