build(makefile): update makefile

Makefile

@@ -40,43 +40,40 @@ check-tensorflow:
 
 # Download and extract TensorFlow Lite C library
 download-tflite:
-	@echo "Downloading TensorFlow Lite C library $(TFLITE_LIB)"
-	@wget -q https://github.com/tphakala/tflite_c/releases/download/$(TFLITE_VERSION)/$(TFLITE_LIB) -P ./
-	@mkdir -p tflite_c
-	@if [ $(suffix $(TFLITE_LIB)) = .zip ]; then \
-		unzip -o $(TFLITE_LIB) -d tflite_c; \
+	@if [ ! -f "/usr/lib/libtensorflowlite_c.so" ]; then \
+		echo "TensorFlow Lite C library not found. Downloading..."; \
+		wget -q https://github.com/tphakala/tflite_c/releases/download/$(TFLITE_VERSION)/$(TFLITE_LIB) -P ./; \
+		if [ $$(suffix $(TFLITE_LIB)) = .zip ]; then \
+			unzip -o $(TFLITE_LIB) -d .; \
+		else \
+			tar -xzf $(TFLITE_LIB) -C .; \
+		fi; \
+		rm -f $(TFLITE_LIB); \
+		install-tflite; \
 	else \
-		tar -xzf $(TFLITE_LIB) -C tflite_c; \
+		echo "TensorFlow Lite C library already exists."; \
 	fi
 
 # Install TensorFlow Lite C library
 install-tflite:
-	@sudo cp tflite_c/libtensorflowlite_c.so $(INSTALL_PATH)
+	@sudo cp libtensorflowlite_c.so $(INSTALL_PATH)
 	@sudo ldconfig
 
-# Install TensorFlow Lite C library
-install-tflite-windows:
-	@sudo cp tflite_c/libtensorflowlite_c.dll $(INSTALL_PATH)
-
 # labels.zip depends on all files in the labels directory
 $(LABELS_ZIP): $(LABELS_FILES)
 	@echo "Creating or updating labels.zip from contents of internal/birdnet/labels/*"
 	@cd internal/birdnet/labels && zip -j $(CURDIR)/$(LABELS_ZIP) *
 
 # Build for Linux amd64
-linux_amd64: GOOS=linux
-linux_amd64: GOARCH=amd64
 linux_amd64: INSTALL_PATH=/usr/lib
-linux_amd64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_$(GOOS)_$(GOARCH).tar.gz
-linux_amd64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite
+linux_amd64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_linux_amd64.tar.gz
+linux_amd64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite 
 	GOOS=linux GOARCH=amd64 $(CGO_FLAGS) go build $(LDFLAGS) -o $(BINARY_DIR)/$(BINARY_NAME)
 
 # Build for Linux arm64, with cross-compilation setup if on amd64
-linux_arm64: GOOS=linux
-linux_arm64: GOARCH=arm64
 linux_arm64: INSTALL_PATH=/usr/lib
-linux_arm64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_$(GOOS)_$(GOARCH).tar.gz
-linux_arm64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite
+linux_arm64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_linux_arm64.tar.gz
+linux_arm64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite 
 ifeq ($(UNAME_M),x86_64)
 	@# Cross-compilation setup for amd64 to arm64
 	CC=aarch64-linux-gnu-gcc $(CGO_FLAGS) GOOS=linux GOARCH=arm64 go build $(LDFLAGS) -o $(BINARY_DIR)/$(BINARY_NAME)
@@ -86,25 +83,19 @@ else
 endif
 
 # Windows build
-windows: GOOS=windows
-windows: GOARCH=amd64
-windows: INSTALL_PATH=/usr/lib
-windows: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_$(GOOS)_$(GOARCH).zip
-windows: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite-windows
+windows_amd64: INSTALL_PATH=/usr/lib
+windows_amd64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_windows_amd64.zip
+windows_amd64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite
 	$(CGO_FLAGS) CC=x86_64-w64-mingw32-gcc go build $(LDFLAGS) -o $(BINARY_DIR)/$(BINARY_NAME).exe
 
 # macOS Intel build
-macos_intel: GOOS=darwin
-macos_intel: GOARCH=amd64
-macos_intel: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_$(GOOS)_$(GOARCH).tar.gz
-macos_intel: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite
+darwin_amd64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_darwin_amd64.tar.gz
+darwin_amd64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite
 	$(CGO_FLAGS) go build $(LDFLAGS) -o $(BINARY_DIR)/$(BINARY_NAME)
 
 # macOS ARM build
-macos_arm: GOOS=darwin
-macos_arm: GOARCH=arm64
-macos_arm: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_$(GOOS)_$(GOARCH).tar.gz
-macos_arm: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite build
+darwin_arm64: TFLITE_LIB=tflite_c_$(TFLITE_VERSION)_darwin_arm64.tar.gz
+darwin_arm64: $(LABELS_ZIP) check-tools check-tensorflow download-tflite install-tflite build
 	$(CGO_FLAGS) go build $(LDFLAGS) -o $(BINARY_DIR)/$(BINARY_NAME)
 
 clean: