bug#62946: recoll package does not provide recollq which Emacs needs

[Kyle Andrews]

Dear Guix,

I am experimenting with using Recoll to help me discover topical files on my 
computer. I'm finding it very helpful, but I would rather eschew the QT 
interface in favor of sticking with Emacs.

There is an existing package which integrates with recoll interactively through 
"consult" on ELPA. Unfortunately, it depends on recoll providing an executable 
called recollq. Yet, recollq is not currently provided the recoll package in 
Guix. However, strangely the recollq man page is. The HTML documentation in the 
source tarball suggests it is not always built, but being unfamiliar with these 
complex auto-configured Makefile-based workflow I couldn't find a way to enable 
it.  

While I have found that `recoll -t' lets me make plain text queries from a 
database at a shell prompt, I was unsuccessful substituting `recollq' with 
`recoll -t' in the Emacs extension package since recollq apparently needed to 
be a file on the path. It would seem to me a lot less janky to just include 
that file. I included what I tried in the package recipe for 
emacs-consult-recoll below.

Thanks,
Kyle

P.S. - Here is the package recipe I made for emacs-consult-recoll based on the 
ELPA importer and reading the consult-recoll web page to simplify the 
description. 

```
(use-modules
 (gnu packages)
 (guix packages)
 (guix download)
 (guix build utils)
 ((guix licenses) #:prefix license:)
 (guix build-system emacs)
 (gnu packages emacs-xyz))

(define-public emacs-consult-recoll
  (package
   (name "emacs-consult-recoll")
   (version "0.8")
   (source (origin
            (method url-fetch)
            (uri (string-append
                  "https://elpa.gnu.org/packages/consult-recoll-"; version
                  ".tar"))
            ;; (modules '((guix build utils)))
            ;; (snippet
            ;;   (substitute* "consult-recoll.el"
            ;;     (("recollq") "recoll -t -n 0")))
            (sha256
             (base32
              "02vg1rr2fkcqrrivqgggdjdq0ywvlyzazwq1xd02yah3j4sbv4ag"))))
   (build-system emacs-build-system)
   (propagated-inputs (list emacs-consult))
   (home-page "https://codeberg.org/jao/consult-recoll";)
   (synopsis "Recoll queries using a consult interface in Emacs")
   (description
    " This package provides an emacs interface to perform recoll queries,
and display its results, via consult. It is also recommened that you
use a a package for vertical display of completions that works well
with consult, such as vertico.

Recoll is a local search engine that knows how to index a wide variety
of file formats, including PDFs, org and other text files and
emails. It also offers a sophisticated query language, and, for some
document kinds, snippets in the the found documents actually matching
the query at hand.")
   (license license:gpl3)))
```