On 2022-11-04 00:00, Eli Zaretskii wrote:
> We need to establish what is the
> source of SIGHUP in these cases.  "These cases" mean, AFAIU, the
> situations where Emacs launched an async subprocess to do native
> compilation (which is another Emacs process in a --batch session), and
> the parent Emacs session is terminated by the user before the async
> compilation runs to completion.  Would the child Emacs process get
> SIGHUP in this scenario?

Hard for me to say. It's a messy area, with kernels (and Emacs itself) 
sending SIGHUP on various whims.

Does the attached patch fix things? It builds on your commit 
190a6853708ab22072437f6ebd93beb3ec1a9ce6 dated 2020-12-04; I don't know 
why that earlier patch was installed, but it would seem to apply to 
SIGHUP and SIGTERM as well as it applies to SIGINT.