Re: GNUMAKE: rebuild target when any of the dependencies are done

[Brenda J. Butler]

With this makefile, ALLSCRIPT will also be run if One and Two
already exist but all has to be made.

Move $(ALLSCRIPT) into the rules for One and Two to have
the effect you want (which I think is:  only run ALLSCRIPT
if either ONESCRIPT or TWOSCRIPT (or both) run).


all:  One Two

One:  $(ONEDEPS)
        $(ONESCRIPT)
        $(ALLSCRIPT)

Two:  $(TWODEPS)
        $(TWOSCRIPT)
        $(ALLSCRIPT)



On Tue, Jan 25, 2005 at 09:28:59AM -0500, John Graham-Cumming wrote:
> Yuri Shtil wrote:
> >Given an example below, I want to start start $(ALLSCRIPT) when ANY of the
> >prerequisites One or Two have been updated.
> >Any idea?
> >
> >all: One Two
> >    $(ALLSCRIPT)
> >
> >One: $(ONEDEPS)
> >    $(ONESCRIPT)
> >
> >Two: $(TWODEPS)
> >    $(TWOSCRIPT)
> 
> It's not clear from your question exactly what you are expecting to 
> happen, but from the looks of your Makefile if either One or Two are 
> updated the then all rule will run, i.e. $(ALLSCRIPT) will be run.
> 
> I suspect there's something more because of the way in which you 
> highlighted the word ANY.  Could you give a concrete example of the 
> output you are expecting; perhaps use this example Makefile
> 
>     all: One Two ; @echo Building all
>     One: ; @echo Building One
>     Two: ; @echo Building Two
> 
> John.
> -- 
> John Graham-Cumming
> jgc@jgc.org
> 
> Home: http://www.jgc.org/
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