Use eldoc-documentation-functions

[gnu-emacs] / lisp / progmodes / cfengine.el

diff --git a/lisp/progmodes/cfengine.el b/lisp/progmodes/cfengine.el
index 78c8d94576b07085524ca971c19cb6d62209b0cf..ace012ff6458589b17ef2179fcf4b17ad9a66ac5 100644 (file)
--- a/lisp/progmodes/cfengine.el
+++ b/lisp/progmodes/cfengine.el
@@ -1,6 +1,6 @@
 ;;; cfengine.el --- mode for editing Cfengine files
 
-;; Copyright (C) 2001-2015 Free Software Foundation, Inc.
+;; Copyright (C) 2001-2016 Free Software Foundation, Inc.
 
 ;; Author: Dave Love <fx@gnu.org>
 ;; Maintainer: Ted Zlatanov <tzz@lifelogs.com>
@@ -1390,12 +1390,15 @@ to the action header."
                  (when buffer-file-name
                    (shell-quote-argument buffer-file-name)))))
 
-  ;; For emacs < 25.1 where `eldoc-documentation-function' defaults to
-  ;; nil.
-  (or eldoc-documentation-function
-      (setq-local eldoc-documentation-function #'ignore))
-  (add-function :before-until (local 'eldoc-documentation-function)
-                #'cfengine3-documentation-function)
+  (if (boundp 'eldoc-documentation-functions)
+      (add-hook 'eldoc-documentation-functions
+                #'cfengine3-documentation-function nil t)
+    ;; For emacs < 25.1 where `eldoc-documentation-function' defaults to
+    ;; nil.
+    (or eldoc-documentation-function
+        (setq-local eldoc-documentation-function #'ignore))
+    (add-function :before-until (local 'eldoc-documentation-function)
+                  #'cfengine3-documentation-function))
 
   (add-hook 'completion-at-point-functions
             #'cfengine3-completion-function nil t)