local
  $(SML_LIB)/basis/basis.mlb
  $(SML_LIB)/smlnj-lib/Util/smlnj-lib.mlb
  $(SML_LIB)/mlyacc-lib/mlyacc-lib.mlb
  $(SML_LIB)/smlnj-lib/PP/pp-lib.mlb
  $(SML_LIB)/basis/mlton.mlb
  $(SRC)/bg_thread.sig
  $(SRC)/bg_thread.mlton.sml
in