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Re: (Gnu Make) How to specify *.o depends on common.h?


From: Steven Woody
Subject: Re: (Gnu Make) How to specify *.o depends on common.h?
Date: Wed, 20 Jul 2005 09:26:22 +0800
User-agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux)

"Paul D. Smith" <psmith@gnu.org> writes:

> %% Steven Woody <anti-spam.narkewoody@gmail.com.dont-post-to> writes:
>
>   sw> "Paul D. Smith" <psmith@gnu.org> writes:
>   >> %% Steven Woody <anti-spam.narkewoody@gmail.com.dont-post-to> writes:
>
>   sw> in gnu make, can i specify a dependency rule which conducts the
>   sw> rebuilding of all .o files as long as a common .h file change?
>   sw> thanks.
>
>   >> foo.o bar.o baz.o boz.o biz.o : common.h
>
>   sw> i think this is not so ideal.  actually, i've already defined 
>
>   sw> PROGRAM = foo bar baz boz biz
>
>   sw> somewhere, so i thing only suffixing an .o to all above programs
>   sw> is not worthy of such re-typing. some kind of reusing of
>   sw> $(PROGRAM) is desirable.
>
> Well, if you want an answer to a specific question you have to ask THAT
> question, not some other question... we're l33t, but we ain't psychic :-).


sorry for that. next time i will endeavor to descript the problem as clear as i
can.


>
>
> If you have a variable PROGRAM containing the names of things without
> the .o and you want to avoid retyping, you can do this:
>
>     $(PROGRAM:%=%.o): common.h

ok, i got it. but ... is there a name for the technology? i want to do a info
search for furthur study. thanks.



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