default: Double_TEST.diff ThrowCatch_TEST.diff

%.diff: %.ref %.out
	diff -u $^

%_TEST.out: %_TEST
	./$< > $@

%_TEST: %_TEST.hs
	ghc $< -package mtl -o $@

clean:
	rm -f *_TEST *.out *.o *.hi
	
.SECONDARY: