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* Merge from Gnulib in emacs-28 branch
@ 2021-10-04 22:34 Paul Eggert
  0 siblings, 0 replies; only message in thread
From: Paul Eggert @ 2021-10-04 22:34 UTC (permalink / raw)
  To: Emacs development discussions

To address the usual portability/correctness issues (new and improved 
with C2x looming :-) I merged from current Gnulib into the emacs-28 
branch, and this merge should eventually hit the Emacs master branch. As 
it's been a while since the last merge from Gnulib I expect there will 
be some glitches; please let me know what you run into. You will 
probably need to build from scratch or do a 'make bootstrap'.

One thing in particular: 'configure' now prefers 64-bit to 32-bit time_t 
on platforms that have both. The only known platforms like this are 
glibc 2.34+ on ARM and x86. The upside is that Emacs won't stop working 
after 2038 on these 32-bit platforms; the downside is that there may be 
issues (which we don't yet know about) if Emacs is linked to libraries 
that require time_t to be 32 bits. If you encounter the downsides you 
can configure with --disable-year2038. Please let me know of any 
problems in this area; I have tested this on Fedora 34 x86 client, but 
not on other platforms.

There's a bit more discussion about this merge here:

https://debbugs.gnu.org/bug=50985



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2021-10-04 22:34 Merge from Gnulib in emacs-28 branch Paul Eggert

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