# makefile3

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# ¹®Á¦Á¡Àº °¢ Çì´õ¿¡ dependecy ÀÓÀ» À̾߱â ÇÏ°í
# makefile4¸¦ ¼ö¾÷.

.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

#problem dependency