Change $(CONSTANTS_OUT) >> $(INTERMEDIATE_OUT)
C:circle rad 40px "$(CONSTANTS_OUT)" fit arrow right 100% E:box rad 10px "CAT" fit arrow right 100% G: circle rad 40px "$(INTERMEDIATE_OUT)" fit→ /pikchrshow
Makefile
$(INTERMEDIATE_OUT): $(CONSTANTS_OUT) cat $(CONSTANTS_OUT) >> $(INTERMEDIATE_OUT)