From: Stefan Kangas <stefankangas@gmail.com>
Date: Thu, 15 Sep 2022 16:48:41 +0000 (+0200)
Subject: Improve error when wallpaper-command is nil
X-Git-Tag: emacs-29.0.90~1856^2~481
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=3ba47a0782f7059062ca6743b22c40a410933f13;p=emacs.git

Improve error when wallpaper-command is nil

* lisp/image/wallpaper.el (wallpaper-set): Improve the error message
when 'wallpaper-command' is nil.
---

diff --git a/lisp/image/wallpaper.el b/lisp/image/wallpaper.el
index d024d6238cb..fe6882a5880 100644
--- a/lisp/image/wallpaper.el
+++ b/lisp/image/wallpaper.el
@@ -254,6 +254,8 @@ On Haiku, no external command is needed, so the value of
         ((featurep 'haiku)
          (haiku-set-wallpaper file))
         (t
+         (unless wallpaper-command
+           (error "Couldn't find a command to set the wallpaper with"))
          (let* ((fmt-spec `((?f . ,(expand-file-name file))
                             (?h . ,(wallpaper--get-height-or-width
                                     "height"