Re: master 3d38d1d: Add sqlite3 support to Emacs

[Eli Zaretskii]

> From: Richard Stallman <rms@gnu.org>
> Date: Sat, 18 Dec 2021 23:57:13 -0500
> Cc: andrewjmoreton@gmail.com, emacs-devel@gnu.org
> 
>     Perhaps we should package this with Emacs so as to assure every
>     Emacs installation has the real PCRE.
> 
> This is one part of a nest of serious issues.  How will we
> expect/tell users to find sqlite3 plug-ins for use in Emacs -- for
> instance, PCRE?

As with optional libraries, this information is usually in README and
INSTALL.  And the configure script checks more precise requirements,
if there are any, for including optional libraries in the build.

> 1. Do free GNU/Linux distros package it?  If so, with sqlite3 or separately?

Here's a page that describes how to install the PCRE plug-in on
Ubuntu:

  https://zoomadmin.com/HowToInstall/UbuntuPackage/sqlite3-pcre

According to that page, Ubuntu does provide a package for it.

> 2. What about people who aren't using one of those distros,
> or are not using GNU/Linux?  Where would they get these?

The code can be easily found by searching the Internet, and our
README/INSTALL should include the canonical URL.