- printf "#ifndef QMK_KEYBOARD\n#define QMK_KEYBOARD\n\n" > lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s\n" "`$(GREP) "MANUFACTURER\s" $(ALL_CONFIGS) -h | tail -1`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s Bootloader\n" "`$(GREP) "PRODUCT\s" $(ALL_CONFIGS) -h | tail -1 | tr -d '\r'`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s\n" "`$(GREP) "QMK_ESC_OUTPUT\s" $(ALL_CONFIGS) -h | tail -1`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s\n" "`$(GREP) "QMK_ESC_INPUT\s" $(ALL_CONFIGS) -h | tail -1`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s\n" "`$(GREP) "QMK_LED\s" $(ALL_CONFIGS) -h | tail -1`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "%s\n" "`$(GREP) "QMK_SPEAKER\s" $(ALL_CONFIGS) -h | tail -1`" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- printf "\n#endif" >> lib/lufa/Bootloaders/DFU/Keyboard.h
- make -C lib/lufa/Bootloaders/DFU/
+ $(TMK_DIR)/make_dfu_header.sh $(ALL_CONFIGS)
+ $(eval MAX_SIZE=$(shell n=`$(CC) -E -mmcu=$(MCU) $(CFLAGS) $(OPT_DEFS) tmk_core/common/avr/bootloader_size.c 2> /dev/null | sed -ne '/^#/n;/^AVR_SIZE:/,$${s/^AVR_SIZE: //;p;}'` && echo $$(($$n)) || echo 0))
+ $(eval PROGRAM_SIZE_KB=$(shell n=`expr $(MAX_SIZE) / 1024` && echo $$(($$n)) || echo 0))
+ $(eval BOOT_SECTION_SIZE_KB=$(shell n=`expr $(BOOTLOADER_SIZE) / 1024` && echo $$(($$n)) || echo 0))
+ $(eval FLASH_SIZE_KB=$(shell n=`expr $(PROGRAM_SIZE_KB) + $(BOOT_SECTION_SIZE_KB)` && echo $$(($$n)) || echo 0))
+ make -C lib/lufa/Bootloaders/DFU/ MCU=$(MCU) ARCH=$(ARCH) F_CPU=$(F_CPU) FLASH_SIZE_KB=$(FLASH_SIZE_KB) BOOT_SECTION_SIZE_KB=$(BOOT_SECTION_SIZE_KB)