bug#33847: 27.0.50; emacsclient does not find server socket

[Paul Eggert]

On 7/23/21 4:38 AM, Lars Ingebrigtsen wrote:
> And I've now tested on Macos, too, and emacsclient still works there.

Thanks for reminding me about that old patch. Unfortunately it uses an 
old version of the Gnulib ACL code, which means it'll miss a fix or two. 
I suggest the attached patches instead. They update Emacs to use current 
Gnulib (the first two patches) and then apply the same patch you sent, 
except with current Gnulib code.

The first two patches are something we should be doing anyway, to bring 
Emacs up-to-date on other Gnulib stuff. One thing worth putting into 
NEWS is the new --disable-year2038 option to 'configure', which may be 
useful for the next glibc release (for those people still running Emacs 
on 32-bit GNU/Linux x86 or ARM).

You probably gotta run 'make bootstrap' after installing these patches. 
Although I fixed the glitches Eli noted, the other Gnulib changes may 
need further changes to Emacs's Microsoft-related code.

0001-Update-from-Gnulib-by-running-admin-merge-gnulib.patch
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0002-By-hand-fixes-for-update-from-Gnulib.patch
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0003-Redo-emacsclient-socket-symlink-attack-checking.patch
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