Catch the imenu-unavailable error in sh-mode completion table

* lisp/progmodes/sh-script.el (sh--cmd-completion-table):
Catch the imenu-unavailable error (bug#24238).

1 files changed, 4 insertions, 1 deletions

diff --git a/lisp/progmodes/sh-script.el b/lisp/progmodes/sh-script.el
index f089c81fe56..0040adc2c2b 100644
--- a/lisp/progmodes/sh-script.el
+++ b/lisp/progmodes/sh-script.el
@@ -1741,7 +1741,10 @@ This adds rules for comments and assignments."
 (defun sh--cmd-completion-table (string pred action)
   (let ((cmds
          (append (when (fboundp 'imenu--make-index-alist)
-                   (mapcar #'car (imenu--make-index-alist)))
+                   (mapcar #'car
+                           (condition-case nil
+                               (imenu--make-index-alist)
+                             (imenu-unavailable nil))))
                  (mapcar (lambda (v) (concat v "="))
                          (sh--vars-before-point))
                  (locate-file-completion-table