--- boost/signals2/detail/variadic_slot_invoker.hpp.org 2012-11-20 09:15:55.000000000 +0400 +++ boost/signals2/detail/variadic_slot_invoker.hpp 2012-11-20 09:19:56.000000000 +0400 @@ -20,7 +20,7 @@ // if compiler has std::tuple use it instead of boost::tuple // because boost::tuple does not have variadic template support at present. #ifdef BOOST_NO_CXX11_HDR_TUPLE -#include +#include #define BOOST_SIGNALS2_TUPLE boost::tuple #else #include