[Emacs-diffs] emacs-25 f651cd1: APPEND etags--xref-backend to xref-backend-functions

[Dmitry Gutov]

branch: emacs-25
commit f651cd119908cb96607a892ca49e8b2958cb2937
Author: Dmitry Gutov <address@hidden>
Commit: Dmitry Gutov <address@hidden>

    APPEND etags--xref-backend to xref-backend-functions
    
    * lisp/progmodes/xref.el (xref-backend-functions):
    Use APPEND when adding the default element
    (http://lists.gnu.org/archive/html/emacs-devel/2015-12/msg00061.html).
---
 lisp/progmodes/xref.el |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index 8a69b07..397f379 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -209,8 +209,9 @@ or an xref backend, which is a value to be used to dispatch 
the
 generic functions.")
 
 ;; We make the etags backend the default for now, until something
-;; better comes along.
-(add-hook 'xref-backend-functions #'etags--xref-backend)
+;; better comes along.  Use APPEND so that any `add-hook' calls made
+;; before this package is loaded put new items before this one.
+(add-hook 'xref-backend-functions #'etags--xref-backend t)
 
 ;;;###autoload
 (defun xref-find-backend ()