Re: master c622627: * Clean-up temporary eln test-suite directory when exiting (bug#48060)

[Andrea Corallo via "Emacs development discussions." <emacs-devel@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Michael Albinus <michael.albinus@gmx.de>
>> Date: Wed, 28 Apr 2021 13:30:37 +0200
>> Cc: Andrea Corallo <akrl@sdf.org>
>> 
>> This expects, that Emacs tests are run only via calling test/Makefile
>> (which sets $HOME to "/nonexistent"). This is not true, tests can also
>> be started interactively.

Nothing prevents tests to be run without using the makefile or even in a
normal interactive session.  Is just that in these cases the product of
native compilation will end-up in "~/.emacs.d/eln-cache".

>> And I find it problematic to have a dependency in startup.el to a
>> Makefile of the test directory.
>
> I tend to agree.
>
> Andrea, is the problem with these directories specific to comp-tests,
> or does it happen in any test run in the native-compilation build?

Every test might need to compile native code, not only directly invoking
`native-compile' & friends but also in case a trampoline has to be
synthesized.

Regards

  Andrea