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Makefile

$(SECURE_BOOT_SIGNING_KEY):
@echo "Need to generate secure boot signing key."
@echo "One way is to run this command:"
@echo "$(ESPSECUREPY) generate_signing_key $@"
@echo "Keep key file safe after generating."
@echo "(See secure boot documentation for risks & alternatives.)"
@exit 1
ifdef CONFIG_BOOTLOADER_CHECK_APP_SUM
CFLAGS += -DCONFIG_ENABLE_BOOT_CHECK_SUM=1
endif
ifdef CONFIG_BOOTLOADER_CHECK_APP_HASH
CFLAGS += -DCONFIG_ENABLE_BOOT_CHECK_SHA256=1
endif