On Mon, Jul 05, 2010 at 10:07:36AM +0800, Jiongliang Zhang wrote:
> Hi All,
>
> I found this format in GNUmakefile:
>
> mytarget : force
> command
>
> but I can't find force as target or something else. it just appeared
> in the prerequisites.
> Can you tell me what's the force mean in here.
"force" is a shorthand to say: always execute this command.
In the above code-snippet you left out a few things.
It usually looks like this:
mytarget: prerequisite(s) force
command
.PHONY: force
So if any of the prerequisite(s) are in the
dependency chain then make will also try to update
mytarget due to the dependency on "force".
Sam
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