boost version 1.69 gcc version 5.4.0 /usr/include/boost/type_traits/is_unsigend.hpp:131:20: error redefinition of 'struct boost::is_unsined<long long int>' template <> struct is_unsigend<const ::boost_long_long_type> : public false_type{};
boost version 1.69
gcc version 5.4.0
/usr/include/boost/type_traits/is_unsigend.hpp:131:20: error redefinition of 'struct boost::is_unsined' template <> struct is_unsigend : public false_type{};