diff --git a/src/Makefile b/src/Makefile
index 15617d2..0985a70 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,6 +1,7 @@
 -include build.conf.deploy_macos
 
-TARGET=fvflash
+TARGET_EXE=fvflash
+TARGET_LIB=libch341eeprom.a
 
 # default config
 SYS_PREFIX?=/opt/local
@@ -13,10 +14,16 @@ CFLAGS+=-std=c99 -MMD -MP -Wno-format-extra-args -Wno-deprecated-declarations
 CFLAGS+=-isystem$(SYS_INC_PATH) -fvisibility=hidden
 
 LDFLAGS+=-DMACOSX_DEPLOYMENT_TARGET=11.00 -framework Foundation -framework IOKit -framework Security
+STATIC_LINK_LIBS=$(SYS_LIB_PATH)/libusb-1.0.a
 
-SRC=$(wildcard *.c)
-OBJ=$(subst .c,.o,$(SRC))
-DEPENDS=$(subst .c,.d,$(SRC))
+SRC_ALL=$(wildcard *.c)
+SRC_EXE=fvflash.c
+SRC_LIB=$(filter-out $(SRC_EXE), $(SRC_ALL))
+
+#OBJ_EXE=$(subst .c,.o,$(SRC_EXE))
+OBJ_LIB=$(subst .c,.o,$(SRC_LIB))
+
+DEPENDS=$(subst .c,.d,$(SRC_ALL))
 
 ifneq ($(MAKECMDGOALS),clean)
     -include $(DEPENDS)
@@ -25,12 +32,17 @@ endif
 .PHONY: all clean uninstall install
 .DEFAULT_GOAL := all
 
-all: $(TARGET)
+all: $(TARGET_EXE)
+
+lib: $(TARGET_LIB)
+
+$(TARGET_EXE): $(SRC_EXE) $(TARGET_LIB)
+	$(CXX) $(LDFLAGS) $(TARGET_LIB) $(STATIC_LINK_LIBS) $(SRC_EXE) -o $@
 
-$(TARGET): $(OBJ)
-	$(CXX) $(LDFLAGS) $(SYS_LIB_PATH)/libusb-1.0.a $(OBJ) -o "$@"
+$(TARGET_LIB): $(OBJ_LIB)
+	$(AR) -cr $@ $^
 
 clean:
-	rm $(OBJ) $(TARGET) $(DEPENDS)
+	rm $(OBJ_LIB) $(TARGET_LIB) $(TARGET_EXE) $(DEPENDS)