-libusb-driver-DEBUG.so: usb-driver.c usb-driver.h
- gcc -DDEBUG $(CFLAGS) $< -o $@ -ldl -lusb -lpthread -shared
+libusb-driver-DEBUG.so: usb-driver.c parport.c jtagkey.c config.c jtagmon.c usb-driver.h parport.h jtagkey.h config.h jtagmon.h Makefile
+ gcc -DDEBUG $(CFLAGS) usb-driver.c parport.c config.c jtagmon.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared