master 79aca35c1f0: * lisp/files-x.el (connection-local-value): Fix Dired crash.

[Po Lu]

branch: master
commit 79aca35c1f0b77d1c109e3b5526400d92f42a2aa
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    * lisp/files-x.el (connection-local-value): Fix Dired crash.
---
 lisp/files-x.el | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lisp/files-x.el b/lisp/files-x.el
index 467981f3f8f..96d49427c81 100644
--- a/lisp/files-x.el
+++ b/lisp/files-x.el
@@ -935,8 +935,13 @@ value is the default binding of the variable."
   (unless (symbolp variable)
     (signal 'wrong-type-argument (list 'symbolp variable)))
   `(let (connection-local-variables-alist file-local-variables-alist)
-     (hack-connection-local-variables
-      (connection-local-criteria-for-default-directory ,application))
+     ;; This is a macro, so whether it is autoloaded doesn't influence
+     ;; whether its callers will induce the loading of files-x.el.
+     ;;
+     ;; Verify that h-c-l-v is autoloaded before calling it.
+     (when (fboundp 'hack-connection-local-variables)
+       (hack-connection-local-variables
+        (connection-local-criteria-for-default-directory ,application)))
      (if-let ((result (assq ',variable connection-local-variables-alist)))
          (cdr result)
        ,variable)))