ifneq ($(wildcard $(obj)/.x509.list),)
ifneq ($(shell cat $(obj)/.x509.list),$(X509_CERTIFICATES))
-$(info X.509 certificate list changed)
+$(warning X.509 certificate list changed to "$(X509_CERTIFICATES)" from "$(shell cat $(obj)/.x509.list)")
$(shell rm $(obj)/.x509.list)
endif
endif