From: Michael Albinus <michael.albinus@gmx.de>
Date: Mon, 22 Oct 2018 07:05:48 +0000 (+0200)
Subject: Improve Tramp backward compatibility
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Improve Tramp backward compatibility

* lisp/net/tramp-compat.el: (tramp-unload-file-name-handlers):
Declare it, for backward compatibility.
---

diff --git a/lisp/net/tramp-compat.el b/lisp/net/tramp-compat.el
index c3777e6e737..ec8e54509d1 100644
--- a/lisp/net/tramp-compat.el
+++ b/lisp/net/tramp-compat.el
@@ -29,6 +29,11 @@
 
 ;;; Code:
 
+;; In Emacs 24 and 25, `tramp-unload-file-name-handlers' is not
+;; autoloaded.  So we declare it here in order to avoid recursive
+;; load.  This will be overwritten in tramp.el.
+(defun tramp-unload-file-name-handlers ())
+
 (require 'auth-source)
 (require 'advice)
 (require 'cl-lib)