Re: regex.c simplification

[Daniel Colascione]

>> Date: Sat, 16 Jun 2018 08:35:34 -0700
>> From: "Daniel Colascione" <address@hidden>
>>
>> I was doing some work on regex.c just now, and I was frustrated that the
>> code is unnecessarily complicated by the ifdefs necessary to support
>> some
>> theoretical non-Emacs use case. Is all of this complexity really
>> necessary? Are we sure the !emacs case even compiles? Are there
>> non-Emacs
>> users of the Emacs regex code? Can we just fork the implementation? How
>> about baking in switches like MATCH_MAY_ALLOCATE?
>
> I think we still haven't abandoned the hope of updating to the latest
> glibc/gnulib versions of regex.c, although I'm not sure how practical
> these hopes are at this point.

I checked out the latest glibc and gnulib sources. Both are so far
diverged that I think updating Emacs to that code is hopeless. (They have
a DFA mode, for example.)