+MPI_CALL(XBT_PUBLIC int, MPI_Win_get_errhandler, (MPI_Win win, MPI_Errhandler* errhandler));
+MPI_CALL(XBT_PUBLIC int, MPI_Win_create_errhandler, (MPI_Win_errhandler_fn * function, MPI_Errhandler* errhandler));
+MPI_CALL(XBT_PUBLIC int, MPI_Win_call_errhandler, (MPI_Win win, int errorcode));MPI_CALL(XBT_PUBLIC int, MPI_Type_get_envelope,