Unfortunate interaction of glibc-2.44 and gnulib regarding posix_spawn_file_actions_addchdir => infinite recursion

[Sam James]

Collin Funk <collin.funk1@gmail.com> writes:

> Xi Ruoyao <xry111@xry111.site> writes:
>
>> It can be worked around with
>> ac_cv_func_posix_spawn_file_actions_addchdir=yes (which basically tells
>> the configure system we have a posix_spawn_file_actions_addchdir, some
>> kind of a "fact" with glibc 2.44).
>>
>> Thoughts on fix this?
>
> Does the attached patch work? In a container, it looks like the symbols
> are defined correctly, but I haven't tested it more than that yet:

Your patch doesn't look like it marks it as 'posix', so would it show up
using the instructions for posix-modules at
https://sourceware.org/glibc/wiki/Testing/Gnulib?

At the moment, RMs are instructed to use that guide which is why this
problem didn't show up.

Should we suggest using `all-modules` instead of `posix-modules`? I
think so given it'll catch more changes, and any differences should be
investigated anyway.

sam
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