Re: regex.c simplification

[Eli Zaretskii]

> Date: Sat, 16 Jun 2018 14:58:56 -0400
> From: "Perry E. Metzger" <address@hidden>
> Cc: address@hidden, address@hidden
> 
> The original question was "should we keep the code that isn't needed
> by emacs on the premise something else might need it someday." I was
> implying that, no, the odds that something else would want it someday
> seem low.

Yes, but the reason to keep the code not needed by Emacs is not
because someone outside of Emacs will want it.  It's because we
ourselves use it in etags.

If we ever import regex from gnulib, then yes, we will have to keep
non-Emacs code also for future merging with gnulib.  But not now.