main: prepare collect
	touch $@

prepare:
	echo "Making $@"
	echo "Try to turn off the switch"
	touch collect

collect: | t1 t2 t3
	echo "Making $@"

t%:
	echo "Making $@"
	#false
	touch $@

#dummy:

#collect: | dummy
#collect: t1
#collect: | t2
#collect: | t3
#collect: t4
#collect: | t5
#collect: t6
#collect: t7
#collect: | t8