From: "Anton Erasmus" <[EMAIL PROTECTED]>
On 14 Sep 2005 at 6:21, John Altstadt wrote:
[...]
> %.elf: $(OBJ)
> @echo
> @echo $(MSG_LINKING) $@
> $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
> rm version.o
There is a better way to force the recompile of version.c
Add the following at the end of your makefile
# Always compile version.c to get correct compilation date and time
.PHONY: version.c
ITYM
.PHONY: version.o
Another method that works with make utilities besides GNU's (and is perhaps
more self-documenting) is
version.o: FORCE
FORCE:
IOW, make version.o depend on FORCE, and make FORCE a phony target (no
prerequisites and no commands). As long as you don't make a file named
FORCE, version.o will always be made (compiled from version.c) Of course,
if you are using GNU make, it's good to add
.PHONY: FORCE
so FORCEd commands are executed even if a file named FORCE is created...
Regards,
-=Dave
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