Hi,
On 2020-06-29 21:27:48 -0400, Tom Lane wrote:
> I wrote:
> > Andres Freund <andres@anarazel.de> writes:
> >> The way that pg_bsd_indent defines its variables isn't standard C, as
> >> far as I can tell, which explains the errors I was getting. All the
> >> individual files include indent_globs.h, which declares/defines a bunch
> >> of variables. Since it doesn't use extern, they'll all end up as full
> >> definitions in each .o when -fno-common is used (the default now), hence
> >> the multiple definition errors. The only reason it works with -fcommon
> >> is that they'll end up processed as weak symbols and 'deduplicated' at
> >> link time.
>
> > Ugh. I agree that's pretty bogus, even if there's anything in the
> > C standard that allows it. I'll put it on my to-do list.
>
> I pushed the attached patch to the pg_bsd_indent repo. Perhaps Piotr
> would like to absorb it into upstream.
Thanks!
> I don't intend to mark pg_bsd_indent with a new release number for
> this --- for people who successfully compiled, it's the same as before.
Makes sense to me.
Greetings,
Andres Freund