bug#25836: [PATCH] gnu: Add gspell

[Ludovic Courtès]

Hi Catonano,

Thanks for the patch.  I’ve modified the package like this:

--8<---------------cut here---------------start------------->8---
(define-public gspell
  (package
    (name "gspell")
    (version "1.3.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnome/sources/" name "/"
                                  (version-major+minor version) "/"
                                  name "-" version ".tar.xz"))
              (sha256
               (base32
                "1n4kd5i11l79h8bpvx3cz79ww0b4z89y99h4czvyg80qlarn585w"))))
    (build-system glib-or-gtk-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-before 'check 'pre-check
           (lambda* (#:key inputs #:allow-other-keys)
             ;; Tests require a running X server.
             (system "Xvfb :1 &")
             (setenv "DISPLAY" ":1")

             ;; For the missing /etc/machine-id.
             (setenv "DBUS_FATAL_WARNINGS" "0")

             ;; Allow Enchant and its Aspell backend to find the en_US
             ;; dictionary.
             (setenv "ASPELL_CONF"
                     (string-append "dict-dir "
                                    (assoc-ref inputs "aspell-dict-en")
                                    "/lib/aspell"))
             #t)))))
    (inputs
     `(("enchant" ,enchant)
       ("iso-codes" ,iso-codes)
       ("gtk+" ,gtk+)
       ("glib" ,glib)))
    (native-inputs
     `(("glib" ,glib "bin")
       ("pkg-config" ,pkg-config)
       ("xmllint" ,libxml2)

       ;; For tests.
       ("xorg-server" ,xorg-server)
       ("aspell-dict-en" ,aspell-dict-en)))
    (home-page
     "https://wiki.gnome.org/Projects/gspell";)
    (synopsis "GNOME's alternative spell checker")
    (description
     "gspell provides a flexible API to add spell checking to a GTK+ 
application.")
    (license license:gpl2+)))
--8<---------------cut here---------------end--------------->8---

However, the tests still fail to find dictionaries as can be seen in
test-checker.log for instance:

--8<---------------cut here---------------start------------->8---
process 133: D-Bus library appears to be incorrectly set up; failed to read 
machine uuid: Failed to open "/etc/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
/checker/check_word: **
ERROR:../../gspell-1.3.2/testsuite/test-checker.c:32:test_check_word: assertion 
failed: (lang != NULL)
FAIL test-checker (exit status: 134)
--8<---------------cut here---------------end--------------->8---

(The bit about D-Bus is a harmless warning.)  The assertion failure
corresponds to:

--8<---------------cut here---------------start------------->8---
        lang = gspell_language_lookup ("en_US");
        g_assert (lang != NULL);
--8<---------------cut here---------------end--------------->8---

For some reason, ‘get_aspell_dict_info_list’ looks for things under
Aspell’s $prefix, and thus returns an empty list.

This is because ‘ASPELL_CONF’ is ignored here, contrary to what happens
when running the ‘aspell’ program.

To be continued…

Ludo’.