Fix .emacs and .emacs.d/init file recursion problem for NaCl

* files.el (file-truename): Add NaCl to the exception list ms-dos uses.

lisp/ChangeLog

+2015-04-05  Pete Williamson  <petewil@chromium.org>  (tiny-change)
+
+	Fix .emacs and .emacs.d/init file recursion problem for NaCl
+	* files.el (file-truename): Add NaCl to the exception list ms-dos uses.
+
 2015-04-04  Alan Mackenzie  <acm@muc.de>
 
 	* progmodes/cc-mode.el (c-font-lock-init): Revert 2015-02-01 change

lisp/files.el

@@ -1192,7 +1192,7 @@ containing it, until no links are left at any level.
 	    (setq dirfile (directory-file-name dir))
 	    ;; If these are equal, we have the (or a) root directory.
 	    (or (string= dir dirfile)
-		(and (memq system-type '(windows-nt ms-dos cygwin))
+		(and (memq system-type '(windows-nt ms-dos cygwin nacl))
 		     (eq (compare-strings dir 0 nil dirfile 0 nil t) t))
 		;; If this is the same dir we last got the truename for,
 		;; save time--don't recalculate.