ifeq ($(call qstrip,$(CONFIG_OPKGSMIME_KEY)),)
@echo Signing key has not been configured
else
ifeq ($(call qstrip,$(CONFIG_OPKGSMIME_CERT)),)
@echo Certificate has not been configured
else
ifeq ($(call qstrip,$(CONFIG_OPKGSMIME_KEY)),)
@echo Signing key has not been configured
else
ifeq ($(call qstrip,$(CONFIG_OPKGSMIME_CERT)),)
@echo Certificate has not been configured
else