checking package dependencies
compiling LBusX.bs
Warning: "LBusX.bs", line 23, column 9: (P0223)
  Definition of `lm' is not used.
Warning: "LBusX.bs", line 25, column 8: (P0223)
  Definition of `x' is not used.
Error: "LBusX.bs", line 5, column 5: (T0010)
  Missing export for type `LBSModule'
  used in the definition of `mkLbLeaf' at "LBusX.bs", line 22, column 0