Fix Bug#23186, again

* lisp/net/tramp.el (tramp-encoding-shell)
(tramp-encoding-command-switch)
(tramp-encoding-command-interactive): Check for
`w32-shell-name'.  (Bug#23186)

diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index fc194fa1ecd2670d7e15185615e18c51c1fff6e7..4edca5a5998cd5f4e37372c932bf5318379a81e1 100644 (file)
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -120,8 +120,8 @@ This setting has precedence over `auto-save-file-name-transforms'."
                 (directory :tag "Auto save directory name")))
 
 (defcustom tramp-encoding-shell
-  (if (memq system-type '(windows-nt))
-      (getenv "COMSPEC")
+  (if (boundp 'w32-shell-name)
+      (symbol-value 'w32-shell-name)
     "/bin/sh")
   "Use this program for encoding and decoding commands on the local host.
 This shell is used to execute the encoding and decoding command on the
@@ -145,17 +145,14 @@ use for the remote host."
   :group 'tramp
   :type '(file :must-match t))
 
-(defcustom tramp-encoding-command-switch
-  (if (string-match "cmd\\.exe" (or tramp-encoding-shell ""))
-      "/c"
-    "-c")
+(defcustom tramp-encoding-command-switch (if (boundp 'w32-shell-name) "/c" "-c")
   "Use this switch together with `tramp-encoding-shell' for local commands.
 See the variable `tramp-encoding-shell' for more information."
   :group 'tramp
   :type 'string)
 
 (defcustom tramp-encoding-command-interactive
-  (unless (string-match "cmd\\.exe" (or tramp-encoding-shell "")) "-i")
+  (unless (boundp 'w32-shell-name) "-i")
   "Use this switch together with `tramp-encoding-shell' for interactive shells.
 See the variable `tramp-encoding-shell' for more information."
   :version "24.1"