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From: Andrew Dunstan <[email protected]>
To: Peter Eisentraut <[email protected]>
To: Tom Lane <[email protected]>
To: Dave Cramer <[email protected]>
Cc: Bertrand Drouvot <[email protected]>
Cc: [email protected]
Subject: Re: Enable -Wstrict-prototypes and -Wold-style-definition by default
Date: Wed, 8 Apr 2026 11:14:35 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <aa73q1aT0A3/vke/@ip-10-97-1-34.eu-west-3.compute.internal>
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On 2026-04-08 We 8:51 AM, Peter Eisentraut wrote:
> On 06.04.26 23:19, Tom Lane wrote:
>> Peter Eisentraut <[email protected]> writes:
>>> The first three patches have been committed.
>>
>> b4a132022 has had some not-so-desirable effects in the buildfarm:
>> drongo and hoatzin are each spewing a couple dozen repetitive
>> warnings about every bison-generated header file, eg
>>
>> src/backend/bootstrap/bootparse.h(111): warning C4255: 
>> 'boot_yyparse': no function prototype given: converting '()' to '(void)'
>>
>> Both of those machines are using bison 2.7, which is pretty old
>> and evidently isn't careful about generating complete prototypes.
>>
>> I'm not sure if there's anything to be done about this, except
>> perhaps nag the animals' owners to find a newer bison somewhere.
>> We could revert b4a132022, but then we might miss valid warnings
>> about such issues in Windows-only code.
>
> Let's try the nagging route.
>
> I found it especially curious that hoatzin is a relatively new member, 
> so why is it running this ancient Bison version?  Looking at the 
> Chocolatey packages:
>
> https://community.chocolatey.org/packages?q=bison
>
> it appears that
>
>     choco install winflexbison
>
> gives you the old version, and you need
>
>     choco install winflexbison3
>
> to get a newer version.  So it seems easy to fall into that "trap" if 
> you don't pay attention.
>
> So perhaps these buildfarm members could update their Bison version 
> sometime.
>
> I found one mention of this command in our wiki 
> (https://wiki.postgresql.org/wiki/Meson#Windows), which I updated.  If 
> we find any other documents or guides with these commands, we should 
> try to get them updated, too.



drongo is updated


cheers


andrew

--
Andrew Dunstan
EDB: https://www.enterprisedb.com

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