#    Thus in practice the make file might really look like

CREATOR =  g++ -Wall -ansi

phone   :  main.o phone.o
	$(CREATOR) -o phone main.o phone.o

phone.o :  phone.c
	$(CREATOR) -c phone.c

main.o  :  main.c phone.h
	$(CREATOR) -c main.c
clean:
	rm core, *.o phone