Re: Proposed patch to remove .so pattern rules from platform Makefiles

Please disregard this patch.  I have a ton of lib%.exp and similar files
created currently.

I am working on a new patch to deal with the MODULES expansion
correctly.

Thanks,
    -rocco

> -----Original Message-----
> From: pgsql-patches-owner@postgresql.org
> [mailto:pgsql-patches-owner@postgresql.org] On Behalf Of Rocco Altier
> Sent: Monday, July 25, 2005 1:17 PM
> To: Tom Lane; pgsql-patches@postgresql.org
> Subject: Re: [PATCHES] Proposed patch to remove .so pattern
> rules from platform Makefiles
>
>
> The patch works on AIX with one small tweak to Makefile.shlib
> (attached).  This is needed because of the clever trick with
> using % as
> name, and when its evaulated for the mkldexport.
>
> Also, it appears that the changes for regress/GNUmakefile are already
> applied.
>
> I am able to build everything and pass the regression tests.
> This just
> leaves the contrib/pgport issue from letting AIX go green on the
> buildfarm.
>
> Thanks for getting this simplification done!
>
>     -rocco
>
>
> > -----Original Message-----
> > From: pgsql-patches-owner@postgresql.org
> > [mailto:pgsql-patches-owner@postgresql.org] On Behalf Of Tom Lane
> > Sent: Sunday, July 24, 2005 6:00 PM
> > To: pgsql-patches@postgresql.org
> > Subject: [PATCHES] Proposed patch to remove .so pattern rules
> > from platform Makefiles
> >
> >
> > I've wanted for a long time to get rid of the pattern rules in the
> > port-specific Makefiles that generate shared libraries from single
> > object files.  These patterns duplicate (or, more often, fail to
> > completely duplicate) the knowledge in Makefile.shlib.  So from
> > a maintenance point of view centralizing that knowledge is a good
> > thing.
> >
> > The stumbling block has been partly that the
> regression-test makefile
> > depended on the pattern rules (easily fixed by using Makefile.shlib)
> > and partly that pgxs.mk (and its predecessor
> > contrib-global.mk) depended
> > on the pattern rules to handle Makefiles that wanted to
> build multiple
> > .so files.  Since Makefile.shlib is designed to handle only
> one shlib
> > per build, there wasn't any obvious way to fix that.
> >
> > The attached proposed patch gets around this by invoking
> > Makefile.shlib
> > in a way that produces a pattern rule "lib%.so : %.o".  This is
> > moderately ugly but it gets the job done without changing
> > Makefile.shlib
> > itself.  Possibly it could be done more cleanly if we were willing
> > to introduce pattern rules inside Makefile.shlib.
> >
> > I am not sure if the patch works on non-Unix platforms ---
> > could someone
> > test on Win32 and Cygwin, in particular?  AIX is weird
> enough to need
> > testing too.
> >
> > Any other comments?
> >
> >             regards, tom lane
> >
> >
>