Update Makefile

Author: cloudwebrtc

Makefile

@@ -1,4 +1,5 @@
 VERSION=$(shell git describe --tags)
+LDFLAGS=-ldflags "-s -w"
 
 all: linux darwin windows
 
@@ -11,15 +12,15 @@ upx:
 	upx -9 bin/*
 
 linux:
-	CGO_ENABLE=0 GOOS=linux GOARCH=amd64 go build -o bin/server-linux-amd64 -ldflags "-s -w" cmd/server/main.go
-	CGO_ENABLE=0 GOOS=linux GOARCH=386 go build -o bin/server-linux-i386 -ldflags "-s -w" cmd/server/main.go
+	CGO_ENABLE=0 GOOS=linux GOARCH=amd64 go build -o bin/server-linux-amd64 ${LDFLAGS} cmd/server/main.go
+	CGO_ENABLE=0 GOOS=linux GOARCH=386 go build -o bin/server-linux-i386 ${LDFLAGS} cmd/server/main.go
 
 darwin:
-	CGO_ENABLE=0 GOOS=darwin GOARCH=amd64 go build -o bin/server-darwin-amd64 -ldflags "-s -w" cmd/server/main.go
+	CGO_ENABLE=0 GOOS=darwin GOARCH=amd64 go build -o bin/server-darwin-amd64 ${LDFLAGS} cmd/server/main.go
 
 windows:
-	CGO_ENABLE=0 GOOS=windows GOARCH=amd64 go build -o bin/server-windows-amd64.exe -ldflags "-s -w" cmd/server/main.go
-	CGO_ENABLE=0 GOOS=windows GOARCH=386 go build -o bin/server-windows-i386.exe -ldflags "-s -w" cmd/server/main.go
+	CGO_ENABLE=0 GOOS=windows GOARCH=amd64 go build -o bin/server-windows-amd64.exe ${LDFLAGS} cmd/server/main.go
+	CGO_ENABLE=0 GOOS=windows GOARCH=386 go build -o bin/server-windows-i386.exe ${LDFLAGS} cmd/server/main.go
 
 zip:
 	zip -r flutter-webrtc-server-bin-${VERSION}.zip bin configs web