From fd502eb5c87ad10992bd2dab1e55e33b187e78ce Mon Sep 17 00:00:00 2001
From: Feng Shu <tumashu@163.com>
Date: Sat, 1 Jul 2017 17:44:29 +0800
Subject: [PATCH] Fix warn when compile switch-window with emacs-no-x

---
 switch-window.el | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/switch-window.el b/switch-window.el
index c21b9fe..3cabe8b 100755
--- a/switch-window.el
+++ b/switch-window.el
@@ -278,6 +278,9 @@ increase or decrease window's number, for example:
   :type 'boolean
   :group 'switch-window)
 
+;; Fix warn when compile switch-window with emacs-no-x
+(defvar image-types)
+
 (defun switch-window--list-keyboard-keys ()
   "Return a list of current keyboard layout keys"
   (cl-loop with layout = (split-string quail-keyboard-layout "")