[nongnu] elpa/visual-fill-column 9cae9dbfd9 041/137: Set window-parameter `split-window' only in Emacs 25 and up.

[ELPA Syncer]

branch: elpa/visual-fill-column
commit 9cae9dbfd9d9d422ced611602978a4a922ebe10b
Author: Joost Kremers <joostkremers@fastmail.fm>
Commit: Joost Kremers <joostkremers@fastmail.fm>

    Set window-parameter `split-window' only in Emacs 25 and up.
---
 visual-fill-column.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/visual-fill-column.el b/visual-fill-column.el
index eb9ad86b6b..4fdebe3973 100644
--- a/visual-fill-column.el
+++ b/visual-fill-column.el
@@ -137,7 +137,8 @@ windows with wide margins."
 (defun visual-fill-column--adjust-window ()
   "Adjust the window margins and fringes."
   (set-window-fringes (selected-window) nil nil 
visual-fill-column-fringes-outside-margins)
-  (set-window-parameter (selected-window) 'split-window 
#'visual-fill-column-split-window)
+  (if (>= emacs-major-version 25)
+      (set-window-parameter (selected-window) 'split-window 
#'visual-fill-column-split-window))
   (visual-fill-column--set-margins))
 
 (defun visual-fill-column--window-max-text-width (&optional window)