src/third_party/mozjs-45/build/pymake/tests/shellfunc.mk - cobalt - Git at Google

 all: testfile
 	test "$(shell cat $<)" = "Hello world"
 	test "$(shell printf "\n")" = ""
 	@echo TEST-PASS

 testfile:
 	printf "Hello\nworld\n" > $@
	all: testfile
	test "$(shell cat $<)" = "Hello world"
	test "$(shell printf "\n")" = ""
	@echo TEST-PASS

	testfile:
	printf "Hello\nworld\n" > $@