(vc-fetch-master-properties): Better error

message in case the "cvs status" command fails.

1 files changed, 8 insertions, 3 deletions

diff --git a/lisp/vc-hooks.el b/lisp/vc-hooks.el
index 1ae9ecfe642..65b2599e2c4 100644
--- a/lisp/vc-hooks.el
+++ b/lisp/vc-hooks.el
@@ -280,15 +280,20 @@ value of this flag.")
       ;; command, because that would change its default directory
       (save-excursion (set-buffer (get-buffer-create "*vc-info*"))
                       (erase-buffer))
-      (let ((exec-path (append vc-path exec-path))
+      (let ((exec-path (append vc-path exec-path)) exec-status
             ;; Add vc-path to PATH for the execution of this command.
             (process-environment
              (cons (concat "PATH=" (getenv "PATH")
                            path-separator 
                            (mapconcat 'identity vc-path path-separator))
                    process-environment)))
-        (apply 'call-process "cvs" nil "*vc-info*" nil 
-               (list "status" file)))
+        (setq exec-status 
+              (apply 'call-process "cvs" nil "*vc-info*" nil 
+                     (list "status" file)))
+        (cond ((> exec-status 0)
+               (switch-to-buffer (get-file-buffer file))
+               (display-buffer "*vc-info*")
+               (error "Couldn't find version control information"))))
       (set-buffer (get-buffer "*vc-info*"))
       (set-buffer-modified-p nil)
       (auto-save-mode nil)