Re: make -C src/test/isolation failure in index-killtuples due to btree_gist

Andres Freund <andres@anarazel.de> writes:
> On 2025-08-18 08:57:13 +0900, Michael Paquier wrote:
>> The following command fails, because btree_gist is not installed in
>> the context of the isolation tests:
>> make -C src/test/isolation/
>> ...
>> and it does not strike me as a good idea to begin doing that in the main
>> isolation test suite, so perhaps the best thing to do here is just move this
>> test to contrib/btree_gist/?

> No, it makes absolutely no sense to test e.g. hash killtuples support in
> btree_gist.

I think the complaint is that nothing has been done to ensure that
these modules have been installed.  You created a new dependency that
developers have to work around, rather than teaching the build system
to handle it.  As a comparison point, all of the tests in
src/test/recovery, src/test/authentication, etc take care to install
required modules when you say "make check" in those directories.
You broke that for src/test/isolation, and you should fix it.
It shouldn't be much harder than setting EXTRA_INSTALL in the
Makefile case; I dunno about meson.

            regards, tom lane