checking package dependencies
compiling ELocalRec.bs
Warning: "ELocalRec.bs", line 40, column 44: (P0102)
  Declaration of `x' shadows previous declaration at "ELocalRec.bs", line 27,
  column 8
Warning: "ELocalRec.bs", line 41, column 44: (P0102)
  Declaration of `x' shadows previous declaration at "ELocalRec.bs", line 27,
  column 8
Warning: "ELocalRec.bs", line 41, column 46: (P0102)
  Declaration of `y' shadows previous declaration at "ELocalRec.bs", line 30,
  column 8
Warning: "ELocalRec.bs", line 42, column 44: (P0102)
  Declaration of `x' shadows previous declaration at "ELocalRec.bs", line 27,
  column 8
Warning: "ELocalRec.bs", line 42, column 46: (P0102)
  Declaration of `y' shadows previous declaration at "ELocalRec.bs", line 30,
  column 8
Error: "ELocalRec.bs", line 40, column 31: (T0037)
  Local recursion without signature not allowed: `function_GCD'