Tom Lane-2 wrote
> Andres Freund <
> > writes:
>> On 2014-05-07 09:35:06 -0400, Tom Lane wrote:
>>> Craig Ringer <
> > writes:
>>>> Is there any reason _not_ to PGDLLEXPORT all GUCs, other than cosmetic
>>> That seems morally equivalent to "is there a reason not to make every
>>> static variable global?".
>> I think what Craig actually tries to propose is to mark all GUCs
>> currently exported in headers PGDLLIMPORT.
> There are few if any GUCs that aren't exposed in headers, just so that
> guc.c can communicate with the owning modules. That doesn't mean that
> we want everybody in the world messing with them.
> To my mind, we PGDLLEXPORT some variable only after deciding that yeah,
> we're okay with having third-party modules touching that. Craig's
> proposal is to remove human judgement from that process.
So third-party modules that use GUC's that are not PGDLLEXPORT are doing so
improperly - even if it works for them because they only care/test
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