TEE :=

GCC_FLAGS := -g -O0 -Wall

run: it1 it2

it0:
	echo "Hand made"

it1:
	cat it1-in.lang0 | python3 it0-out.py $(if $(TEE),| tee,> ) it1-out0.py

	cat it1-in.lang0 | python3 it1-out0.py $(if $(TEE),| tee,> ) it1-out1.py
	diff it1-out0.py it1-out1.py > it1-out1.diff
	cat it1-in.lang0 | python3 it1-out1.py $(if $(TEE),| tee,> ) it1-out2.py
	diff it1-out1.py it1-out2.py > it1-out2.diff
	cat it1-in.lang0 | python3 it1-out2.py $(if $(TEE),| tee,> ) it1-out.py
	diff it1-out2.py it1-out.py > it1-out.diff

	# See how much our hand written code differs from resulting code
	-diff it0-out.py it1-out0.py > it0-out0.diff

it2: it1
	cat it2-in.lang0 | python3 it1-out.py $(if $(TEE),| tee,> ) it2-out0.py

	cat it2-in.lang0 | python3 it2-out0.py $(if $(TEE),| tee,> ) it2-out1.c && gcc it2-out1.c -o it2-out1 $(GCC_FLAGS)
#	diff it2-out0.c it2-out1.c > it2-out1.diff
	cat it2-in.lang0 | ./it2-out1 $(if $(TEE),| tee,> ) it2-out2.c && gcc it2-out2.c -o it2-out2 $(GCC_FLAGS)
	diff it2-out1.c it2-out2.c > it2-out2.diff
	cat it2-in.lang0 | ./it2-out2 $(if $(TEE),| tee,> ) it2-out.c && gcc it2-out.c -o it2-out $(GCC_FLAGS)
	diff it2-out2.c it2-out.c > it2-out.diff

clean:
	-rm it1-out* it2-out*

.PHONY: it2