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Makefile: Reduce use of $^ in build rules

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It's rare to use all of a target's prerequisites in a recipe - replace
most cases with $< (the target's first prerequisite).

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-03-02 12:01:44 -05:00
parent 9430fea2c5
commit 399d539969
5 changed files with 9 additions and 9 deletions
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4
src/atsamd/Makefile
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@@ -61,6 +61,6 @@ BOSSAC_OFFSET-$(CONFIG_MACH_SAMD21) := 0x2000
BOSSAC_OFFSET-$(CONFIG_MACH_SAMD51) := 0x4000
flash: $(OUT)klipper.bin lib/bossac/bin/bossac
@echo " Flashing $^ to $(FLASH_DEVICE) via bossac"
@echo " Flashing $< to $(FLASH_DEVICE) via bossac"
$(Q)if [ -z $(FLASH_DEVICE) ]; then echo "Please specify FLASH_DEVICE"; exit 1; fi
$(Q)lib/bossac/bin/bossac -U -p "$(FLASH_DEVICE)" -a --offset=$(BOSSAC_OFFSET-y) -w $(OUT)klipper.bin -v -b -R
$(Q)lib/bossac/bin/bossac -U -p "$(FLASH_DEVICE)" -a --offset=$(BOSSAC_OFFSET-y) -w $< -v -b -R