# makefile4

.c.o: 
	@echo "Compiling" $< "..."
	cc -c $< -I.

app: main.o foo.o goo.o
	@echo "Building target" $@ "..." 
	cc -o app main.o foo.o goo.o

main.o:foo.h goo.h
foo.o:foo.h
foo.o:goo.h