problem with pushnew in .emacs file

[Paul Dufresne]

On the 'Using Slate' of the wiki, there is a proposed .emacs file:
===
(pushnew "~/slate/etc" load-path)
(defconst slate-cmd "~/slate/slate")
(defconst slate-dir "~/slate/")
(defvar slate-args '("~/slate/my.image"))
(require 'slate-mode)
===

When I run emacs I get:
Symbol's function definition is void: pushnew

Does this work on very recent emacs version.
I use the one in Debian testing:
emacs21 21.3+1-7

--Paul

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