fix: enhance Makefile for improved cross-platform library handling

- Updated the TFLITE_LIB_DIR logic to prioritize Homebrew installation on macOS, falling back to the HOME directory if not found.
- Added conditional CGO_LDFLAGS for Darwin to ensure proper linking of TensorFlow Lite libraries.
- Improved the download-tflite target with clearer echo statements for file movements, enhancing user feedback during the build process.

These changes ensure better compatibility and user experience when building on macOS and Linux.

Makefile

@@ -54,6 +54,9 @@ define get_cgo_flags
 $(strip \
     CGO_ENABLED=1 \
     CGO_CFLAGS="-I$(HOME)/src/tensorflow" \
+    $(if $(filter darwin%,$1), \
+        CGO_LDFLAGS="-L$(TFLITE_LIB_DIR)" \
+    ) \
     $(if $(filter linux_arm64,$1), \
         $(if $(filter x86_64,$(UNAME_M)), \
             CC=aarch64-linux-gnu-gcc \
@@ -69,7 +72,12 @@ ifeq ($(UNAME_S),Linux)
     TFLITE_LIB_EXT := .so
 else ifeq ($(UNAME_S),Darwin)
     NATIVE_TARGET := darwin_$(if $(filter x86_64,$(UNAME_M)),amd64,arm64)
-    TFLITE_LIB_DIR := /usr/local/lib
+    # Try Homebrew location first, fall back to HOME directory
+    ifeq ($(wildcard /opt/homebrew/lib),)
+        TFLITE_LIB_DIR := $(HOME)/lib
+    else
+        TFLITE_LIB_DIR := /opt/homebrew/lib
+    endif
     TFLITE_LIB_EXT := .dylib
 else
     $(error Build is supported only on Linux and macOS)
@@ -136,16 +144,19 @@ download-tflite:
 			sudo mv ./tensorflowlite_c-$(patsubst v%,%,$(TFLITE_VERSION)).dll $(TFLITE_LIB_DIR)/; \
 			rm -f tensorflowlite_c-$(patsubst v%,%,$(TFLITE_VERSION)).dll; \
 		else \
+			echo "Extracting $(TFLITE_C_FILE)..."; \
 			tar -xzf $(TFLITE_C_FILE) -C .; \
 			if [ "$(UNAME_S)" = "Darwin" ]; then \
 				if [ -f "$(TFLITE_LIB_DIR)/libtensorflowlite_c.dylib" ]; then \
 					sudo mv "$(TFLITE_LIB_DIR)/libtensorflowlite_c.dylib" "$(TFLITE_LIB_DIR)/libtensorflowlite_c.dylib.old"; \
 				fi; \
+				echo "Moving libtensorflowlite_c.dylib to $(TFLITE_LIB_DIR)"; \
 				sudo mv libtensorflowlite_c.dylib $(TFLITE_LIB_DIR)/; \
 			else \
 				if [ -f "$(TFLITE_LIB_DIR)/libtensorflowlite_c.so" ]; then \
 					sudo mv "$(TFLITE_LIB_DIR)/libtensorflowlite_c.so" "$(TFLITE_LIB_DIR)/libtensorflowlite_c.so.old"; \
 				fi; \
+				echo "Moving libtensorflowlite_c.so to $(TFLITE_LIB_DIR)"; \
 				sudo mv libtensorflowlite_c.so.$(patsubst v%,%,$(TFLITE_VERSION)) $(TFLITE_LIB_DIR)/; \
 			fi; \
 		fi; \