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Add NODATE=1 option to Makefile, for deterministic compilation. #375

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Feb 27, 2024
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Add NODATE=1 option to Makefile, for deterministic compilation. #375

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10 changes: 9 additions & 1 deletion optiboot/bootloaders/optiboot/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -294,12 +294,20 @@ dummy = FORCE
endif
endif

HELPTEXT += "Option NODATE=1 - Leave out the date, useful if we want to compare binaries\n"
ifdef NODATE
ifneq ($(NODATE),0)
NODATE_CMD = -DNODATE=1
dummy = FORCE
endif
endif


COMMON_OPTIONS = $(BAUD_RATE_CMD) $(LED_START_FLASHES_CMD) $(BIGBOOT_CMD)
COMMON_OPTIONS += $(SOFT_UART_CMD) $(LED_DATA_FLASH_CMD) $(LED_CMD) $(SS_CMD)
COMMON_OPTIONS += $(SUPPORT_EEPROM_CMD) $(LED_START_ON_CMD) $(APPSPM_CMD)
COMMON_OPTIONS += $(OSCCAL_VALUE_CMD) $(VERSION_CMD) $(TIMEOUT_CMD)
COMMON_OPTIONS += $(POR_CMD) $(EXTR_CMD) $(RS485_CMD)
COMMON_OPTIONS += $(POR_CMD) $(EXTR_CMD) $(RS485_CMD) $(NODATE_CMD)

#UART is handled separately and only passed for devices with more than one.
HELPTEXT += "Option UART=n - use UARTn for communications\n"
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