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Re: port _srv.o makefile rules don't observe dependency tracking

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: port _srv.o makefile rules don't observe dependency tracking
Date: 2012-05-01 20:25:07
Message-ID: 20131.1335903907@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Excerpts from Peter Eisentraut's message of mar may 01 15:30:25 -0400 2012:
>> Instead, I thought this could easily be fixed by writing this:
>> 
>> %_srv.o: %.c %.o
>>	$(CC) $(CFLAGS) $(subst -DFRONTEND,, $(CPPFLAGS)) -c $< -o $@
>> 
>> A bit hacky, but should get quite robust results.

> So basically to build the _srv.o file you first need to build the .o?
> Since both files need to be built anyway, I don't think this is a
> problem.

Are there, or might there be in the future, any "port" files that only
exist in server flavor and not client-side flavor?  It doesn't seem
terribly unlikely to me.  This is a cute hack but it assumes that
everything in that directory can and should be built both ways.

			regards, tom lane

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