Re: Make finding openssl program a configure or meson option

On 12.10.22 03:08, Michael Paquier wrote:
> On Tue, Oct 11, 2022 at 05:06:22PM +0200, Peter Eisentraut wrote:
>> Various test suites use the "openssl" program as part of their setup. There
>> isn't a way to override which openssl program is to be used, other than by
>> fiddling with the path, perhaps.  This has gotten increasingly problematic
>> with some of the work I have been doing, because different versions of
>> openssl have different capabilities and do different things by default.
>> This patch checks for an openssl binary in configure and meson setup, with
>> appropriate ways to override it.  This is similar to how "lz4" and "zstd"
>> are handled, for example.  The meson build system actually already did this,
>> but the result was only used in some places. This is now applied more
>> uniformly.
> 
> openssl-env allows the use of the environment variable of the same
> name.  This reminds me a bit of the recent interferences with GZIP,
> for example.

Okay, I see what you meant here now.  openssl-env is the man page 
describing environment variables used by OpenSSL.  I don't see any 
conflicts with what is being proposed here.

> This patch is missing one addition of set_single_env() in
> vcregress.pl, and one update of install-windows.sgml where all the
> supported environment variables for commands are listed.

Added.  New patch attached.