-$(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list: makefile
- (echo $(SRC) | xargs -n1 echo) > $@
-startup binary program clean: $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list
+$(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list: makefile dirs
+ (echo $(SRC) | xargs -n1 echo) > $@.tmp
+ cmp --silent $@.tmp $@ || mv $@.tmp $@
+startup binary program clean update-po: $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list