1: undefined 2make: in target "unclosed-expression": Unclosed variable "UNCLOSED" 3: unclosed-expression 4make: Unclosed expression, expecting '}' for "UNCLOSED" 5: unclosed-modifier 6make: in target "unknown-modifier": while evaluating variable "UNKNOWN": Unknown modifier "Z" 7: unknown-modifier 8: end 9exit status 2 10