.pre-build:
	mkdir -p bin/
BIN = ./bin

all: x86 arm32 arm64 android

test: .pre-build
	export GOARCH=amd64 GOOS=linux GO111MODULE=on  && go build  -ldflags="-s -w" -tags netgo -o $(BIN)/nat_detect
	export GOARCH=arm GOOS=linux GO111MODULE=on CGO_ENABLED=0 CC=arm-linux-gnueabi-gcc  && go build -ldflags="-extldflags '-static' " -tags netgo -o $(BIN)/nat_detect.arm

x86: .pre-build
	export GOARCH=amd64 GOOS=linux GO111MODULE=on CGO_ENABLED=1 && go build -ldflags="-extldflags '-static' " -tags netgo -o $(BIN)/nat_detect
	upx $(BIN)/nat_detect -1

arm32: .pre-build
	export GOARCH=arm GOOS=linux GO111MODULE=on CGO_ENABLED=1 CC=arm-linux-gnueabi-gcc  && go build -ldflags="-extldflags '-static' " -tags netgo -o $(BIN)/nat_detect.arm32
	upx $(BIN)/nat_detect.arm32 -1

arm64: .pre-build
	export GOARCH=arm64  GOOS=linux GO111MODULE=on CGO_ENABLED=1 CC=aarch64-linux-gnu-gcc && go build   -ldflags '-extldflags "-static"' -tags netgo  -o $(BIN)/nat_detect.arm
	upx $(BIN)/nat_detect.arm64 -1

android: .pre-build
	export GOARCH=arm GOOS=android GO111MODULE=on CGO_ENABLED=1 CC=/usr/local/android-ndk-r19c/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi19-clang && go build -o $(BIN)/nat_detect.ndk
clean:
	$(RM) -r $(BIN) || true