Re: [HACKERS] Support for Secure Transport SSL library on macOS asOpenSSL alternative

On Mon, Aug 21, 2017 at 6:21 AM, Daniel Gustafsson <daniel@yesql.se> wrote:
>> On 19 Aug 2017, at 23:13, Thomas Munro <thomas.munro@enterprisedb.com> wrote:
>>> I guess it should have a fallback definition, though I don't know what
>>> it should be.
>>
>> Or maybe the guc should only exist if SSL_LIBRARY is defined?
>
> I think the intended use case of the GUC should drive the decision on fallback.
> If the GUC isn’t supposed to be a way to figure out if the server was built
> with SSL support, then not existing in non-SSL backends is fine.  If, however,
> we want to allow using the GUC to see if the server has SSL support, then there
> needs to be a “None” or similar value for that case.

Only GUCs related to debugging have their existence defined based on a
#define, so it seems to me that if Postgres is compiled without any
SSL support, this parameter should still be visible, but set to
"none".
--
Michael