Support Hunspell 1.7.0 in ispell.el

* lisp/textmodes/ispell.el
(ispell-find-hunspell-dictionaries): Invoke Hunspell with an
additional command-line argument, to work around a misfeature
in Hunspell 1.7.0 that prevents it from reporting the loaded
dictionary.  (Bug#33493)

1 files changed, 6 insertions, 1 deletions

diff --git a/lisp/textmodes/ispell.el b/lisp/textmodes/ispell.el
index e77bc7e1128..9789968b15c 100644
--- a/lisp/textmodes/ispell.el
+++ b/lisp/textmodes/ispell.el
@@ -1113,7 +1113,12 @@ dictionary from that list was found."
                                  null-device
                                  t
                                  nil
-                                 "-D")
+                                 ;; Hunspell 1.7.0 (and later?) won't
+                                 ;; show LOADED DICTIONARY unless
+                                 ;; there's at least one file argument
+                                 ;; on the command line.  So we feed
+                                 ;; it with the null device.
+                                 "-D" null-device)
             (buffer-string))
           "[\n\r]+"
           t))