Re: Show version of OpenSSL in ./configure output

On Mon, Oct 23, 2023 at 06:06:02PM +0200, Peter Eisentraut wrote:
> On 23.10.23 16:26, Tom Lane wrote:
>> Also, since "PGAC_PATH_PROGS(OPENSSL, openssl)" prints the full path to
>> what it found, you can at least tell after the fact that you are being
>> misled, because you can cross-check that path against the -L switches
>> being used for libraries.
>
> Yeah, that seems ok.

FWIW, I was also contemplating this one yesterday:
+PKG_CHECK_MODULES(OPENSSL, openssl)

Still, when I link my builds to a custom OpenSSL one, I force PATH to
point to a command of openssl related to the libs used so
PGAC_PATH_PROGS is more useful.  I guess that everybody here does the
same.  It could be of course possible to show both the command from
PATH and from pkg-config, but that's just confusing IMO.

There may be a point in doing the same for other commands like LZ4 and
Zstandard but these have been less of a pain in the buildfarm, even if
we don't use them for that long, so I cannot get excited about
spending more ./configure cycles for these.

Please find attached a patch to move the version call close to the
existing PGAC_PATH_PROGS.  And of course, I'd like to do a backpatch.
Is that OK?
--
Michael