Android 10  |  10.0.0_r6
Makefile文件  |  14行  |  214 B 

test1:
	touch -t 197101010000 foo
	touch bar

# Note order-only dependency will not appear in $^
test2: foo | bar
	echo PASS_$^

# bar is newer than foo but we should not rebuild it.
foo: | bar baz

baz:
	touch $@