Make `ispell-change-dictionary' only list installed dictionaries

* lisp/textmodes/ispell.el (ispell-find-aspell-dictionaries): If
the backend (i.e., aspell/hunspell) provided a list of languages,
don't add the base list (bug#24050).
(ispell-set-spellchecker-params): Ditto.

1 files changed, 11 insertions, 8 deletions

diff --git a/lisp/textmodes/ispell.el b/lisp/textmodes/ispell.el
index 9dfa9f3c448..0c7fb3899ed 100644
--- a/lisp/textmodes/ispell.el
+++ b/lisp/textmodes/ispell.el
@@ -851,11 +851,13 @@ Internal use.")
     ;; Ensure aspell's alias dictionary will override standard
     ;; definitions.
     (setq found (ispell-aspell-add-aliases found))
-    ;; Merge into FOUND any elements from the standard ispell-dictionary-base-alist
-    ;; which have no element in FOUND at all.
-    (dolist (dict ispell-dictionary-base-alist)
-      (unless (assoc (car dict) found)
-        (setq found (nconc found (list dict)))))
+    ;; Merge into FOUND any elements from the standard
+    ;; ispell-dictionary-base-alist which have no element in FOUND at
+    ;; all.
+    (unless found
+      (dolist (dict ispell-dictionary-base-alist)
+        (unless (assoc (car dict) found)
+          (setq found (nconc found (list dict))))))
     (setq ispell-aspell-dictionary-alist found)
     ;; Add a default entry
     (let ((default-dict
@@ -1295,8 +1297,7 @@ aspell is used along with Emacs).")
     ;; Substitute ispell-dictionary-alist with the list of
     ;; dictionaries corresponding to the given spellchecker.
     ;; With programs that support it, use the list of really
-    ;; installed dictionaries and add to it elements of the original
-    ;; list that are not present there. Allow distro info.
+    ;; installed dictionaries. Allow distro info.
     (let ((found-dicts-alist
            (if ispell-encoding8-command
                (if ispell-really-aspell
@@ -1363,7 +1364,9 @@ aspell is used along with Emacs).")
       ;; Add dicts to `ispell-dictionary-alist' unless already present.
       (dolist (dict (append found-dicts-alist
                             ispell-base-dicts-override-alist
-                            ispell-dictionary-base-alist))
+                            (if found-dicts-alist
+                                nil
+                              ispell-dictionary-base-alist)))
         (unless (assoc (car dict) all-dicts-alist)
           (push dict all-dicts-alist)))
       (setq ispell-dictionary-alist all-dicts-alist))