On 2014-02-15 10:59:17 -0500, Tom Lane wrote:
> Andres Freund <andres@2ndquadrant.com> writes:
> > On 2014-02-15 10:16:50 -0500, Tom Lane wrote:
> >> The best thing probably is not to have the duplicate declarations on
> >> platforms that don't need 'em. Unfortunately, I seem to recall that
> >> the current coding was arrived at to forestall link problems on weird
> >> platforms that *had* these symbols declared and yet we needed externs
> >> anyway. We might have to do something as ugly as "#ifndef CYGWIN".
>
> > Hm, according to a quick blame, they are there unconditionally since at
> > least 2000 (c.f. a70e74b06 moving them around). So it very well might be
> > that that reasoning isn't current anymore.
>
> I don't have time right now to research it (have to go shovel snow),
> but I think that at least some of the issue was that we needed the
> externs when we force use of our src/port implementation.
I think that'd be solvable easy enough if we'd just always included pg's
getopt_long.h (or a new getopt.h) which properly deals with defining
them when included. That'd centralize all the magic and it'd overall get
rid of a ton of ifdefs and externs.
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services
