RKE = $(wildcard *.rke) RK05 = $(RKE:.rke=.rk05) DSK = $(RKE:.rke=.new) IMAGE = $(RK05) $(RKE) all: update $(RK05) $(RKE) $(DSK) update: cd build; make %.rk05: build/%.rk05 cp $< . %.rke: build/%.rke cp $< . %.new: build/%.new cp $< .