[boost] Boost::Process is broken

All, Has anyone tried to build with included using XCode 9.0? I don’t think this went through code review. include/boost/process/exception.hpp:22:30: error: using declaration cannot refer to a constructor using std::system_error::system_error; ~~~~~~~~~~~~~~~~~~~^ I’m not sure that does what was intended, and the compiler thinks it’s silly talk… Any and all assistance appreciated in advance… \W/