	a/Makefile		b/Makefile
1	C2IEC=c99	1	C2IEC=c99
2	TESTS=$(patsubst %.c, %.test, $(wildcard test/*.c))	2	TESTS=$(patsubst %.c, %.test, $(wildcard test/*.c))
3	TEST_LOGS=$(patsubst %.c, %.test.log, $(wildcard test/*.c))	3	TEST_LOGS=$(patsubst %.c, %.test.log, $(wildcard test/*.c))
4		4
5	check:
6	echo ${TEST_LOGS}
7
8	all: c99	5	all: c99
9		6
10	c99: lex.yy.c y.tab.c	7	c99: lex.yy.c y.tab.c
11	gcc -o $@ $^	8	gcc -o $@ $^
12		9
	...		...
20	yacc -g $^	17	yacc -g $^
21		18
22	commit: ${TEST_LOGS}	19	commit: ${TEST_LOGS}
23	for i in ${TEST_LOGS}; do \	20	for i in ${TEST_LOGS}; do \
24	cp $$i $$(dirname $$i)/$$(basename $$i .log).expected; \	21	cp $$i $$(dirname $$i)/$$(basename $$i .log).expected; \
25	done	22	done
		23	clean:
		24	rm -f ${C2IEC}
		25	rm -f ${TEST_LOGS}
26		26
27	.PHONY: test	27	.PHONY: test
28	test: ${TESTS}	28	test: ${TESTS}
29		29
30	%.test: %.test.log	30	%.test: %.test.log
31	diff $< $*.test.expected	31	@echo "========================================"
32		32	@echo "checking output of test $*"
33	%.test.log: %.test.txt	33	@diff $< $*.test.expected
34	cat $< \| tee $@	34
		35	%.test.log: %.test.txt
		36	@echo "========================================"
		37	@echo "output of test $*"
		38	@echo "========================================"
		39	@cat $< \| tee $@
35		40
36	%.test.txt: %.c ${C2IEC}	41	%.test.txt: %.c ${C2IEC}
37	./${C2IEC} < $< > $@	42	./${C2IEC} < $< > $@
38		43
39	test2: c99	44	test2: c99
	...		...
44		49