On Apr 14, 2020, at 11:15 AM, Ralph Lange via Core-talk <core-talk at aps.anl.gov> wrote:

On Mon, 13 Apr 2020 at 22:49, Konrad, Martin via Core-talk <core-talk at aps.anl.gov> wrote:

Hi Freddie,
> you could specify this image explicitly for the 10.0 11.0 12.0 and
> 14.0 toolchains (as is done for mingw in the file)
Thanks, that works :-) After deleting the project and starting from
scratch I believe that's actually the only thing that fixes my problem
(setting the default in the settings did NOT work for me - AppVeyor is
ignoring that the same way it is ignoring what should be their own
default...).

The image variable is definitely treated different from other environment variables.

What I found:

Once you set it in the common environment settings in your .appveyor.yml (matrix/environment) configuration, any per-job setting will *not* overwrite. (Different from other environment variables.)

BTW. I would prefer time being invested in checking/fixing the PullRequest for ci-scripts that adds AppVeyor support. I don't have any feedback yet, and this is the main issue keeping me from replacing the existing AppVeyor integration in base (that you are trying to fix).

Thanks a lot!

~Ralph