Added Additional rules for Makefile

Makefile

@@ -1,5 +1,10 @@
 CC=gcc
-main: main.c easysock.c
-	$(CC) main.c easysock.c -o proxy
+CLAGS=
+EXEC_FILE=proxy
+$(EXEC_FILE): main.o easysock.o
+	$(CC) main.o easysock.o -o $(EXEC_FILE)
 allwarn: main.c easysock.c
-	$(CC) -Wall main.c easysock.c -o proxy
+	$(CC) -Wall main.c easysock.c -o $(EXEC_FILE)
+delOutput: $(EXEC_FILE)
+	rm ./$(EXEC_FILE)
+clean: delOutput $(EXEC_FILE)