Re: pgsql: Make pg_dumpall build with the right object files under MSVC.

Excerpts from Andrew Dunstan's message of lun nov 28 14:40:24 -0300 2011:
>
> On 11/28/2011 11:33 AM, Bruce Momjian wrote:

> > In summary, for those watching, pg_dump and pg_restore used to share
> > OBJS, and with my new patch, dumpmem.c is now shared by those and
> > pg_dumpall.  Seems the MSVC code previously could not handle that case,
> > which is fixed by this patch.
>
> Er, no. Only dumputils.c is shared with pg_dumpall. dumpmem.c is not
> (see the Makefile).
>
> The problem that arose is that pg_dumpall has its own (non-static)
> versions of pg_malloc and pg_strdup, so we got duplicate symbol errors
> from the newly declared dumpmem.c functions when we erroneously tried
> linking it in on MSVC.

I was wondering if it wouldn't make more sense to have pg_dumpall supply
its own version of exit_horribly to avoid separate pg_malloc and
pg_strdup ... but then those routines are so tiny that it hardly makes a
difference.

Another thing I wondered when seeing the original commit is the fact
that the old code passed the AH to exit_horribly in some places, whereas
the new one simply uses NULL.

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Álvaro Herrera <alvherre@commandprompt.com>
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