bug#65324: "make check" hangs on NetBSD 9.3

[Stefan Kangas]

Bruno Haible <bruno@clisp.org> writes:

> Building Emacs (git sources from today) on NetBSD 9.3/x86_64:
> 1. I configured in a subdirectory (VPATH build) with options
>      --disable-silent-rules --without-all --without-x
> 2. "make" succeeds.
> 3. "make check" leads to a process that eats 100% CPU time
>    over several hours. Log file 'make-check.log' is attached.
>    This process can be killed through Ctrl-C.

>From the screenshot, this seems to be about Tramp.  Michael, could you
take a look at this?