bug#50985: Merging gnulib for Emacs 28.1?

[Robert Pluim]

>>>>> On Tue, 5 Oct 2021 09:16:13 -0700, Paul Eggert <eggert@cs.ucla.edu> said:

    Paul> On 10/5/21 7:11 AM, Robert Pluim wrote:
    >> Probably. When it comes to gnulib I prefer to leave it to people who
    >> know what theyʼre doing :-)

    Paul> We can't wait for *that* (:-), so I charged ahead and installed the
    Paul> attached patches into the emacs-28 branch. This fixed the md5_stream
    Paul> issue for me.

Your patch just proves my point: mine was less minimal than it could
have been because I made a mistake in adding crypto/af_alg, then
removing it, and thus having an excessive addition to AVOIDED_MODULES.

    Paul> The key issue here is whether Emacs wants to use cryptography
    Paul> algorithms supported by the Linux kernel, if available. I expect that
    Paul> Emacs doesn't want to bother, because its use of md5_stream is not
    Paul> that performance- or security-relevant and because if we wanted Emacs
    Paul> to use the kernel stuff that'd drag in a lot more Gnulib modules which
    Paul> would be more trouble than it's worth. Comments welcome of course,
    Paul> since this is a judgment call.

Seems sound to me. --with-native-compilation works for me now on
GNU/Linux.

    Paul> I hadn't run into this earlier because I was doing a default
    Paul> configure+build, which on my platform didn't use native compilation.

I donʼt think any platform does native compilation by default (yet?).

Robert
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