revert the updates on Makefile

Makefile

@@ -5,26 +5,33 @@ all: build
 
 build:
 	go clean; rm -rf pkg; go build -o udp_server ${flags} udp_server.go
+	go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 build_debug:
 	go clean; rm -rf pkg; go build -o udp_server ${flags} -gcflags="-m -m" udp_server.go
+	go build -o udp_server_monitor ${flags} -gcflags="-m -m" udp_server_monitor.go
 
 build_all: build_osx build_linux build
 
 build_osx:
 	go clean; rm -rf pkg udp_server_osx; GOOS=darwin go build -o udp_server ${flags} udp_server.go
+	GOOS=darwin go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 build_linux:
 	go clean; rm -rf pkg udp_server_linux; GOOS=linux go build -o udp_server ${flags} udp_server.go
+	GOOS=linux go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 build_power8:
 	go clean; rm -rf pkg udp_server_power8; GOARCH=ppc64le GOOS=linux go build -o udp_server ${flags} udp_server.go
+	GOARCH=ppc64le GOOS=linux go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 build_arm64:
 	go clean; rm -rf pkg udp_server_arm64; GOARCH=arm64 GOOS=linux go build -o udp_server ${flags} udp_server.go
+	GOARCH=arm64 GOOS=linux go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 build_windows:
 	go clean; rm -rf pkg udp_server.exe; GOARCH=amd64 GOOS=windows go build -o udp_server ${flags} udp_server.go
+	GOARCH=amd64 GOOS=windows go build -o udp_server_monitor ${flags} udp_server_monitor.go
 
 install:
 	go install
@@ -35,4 +42,4 @@ clean:
 test : test1
 
 test1:
-	go test
+	go test