From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: BobD <daycandle@gmail.com>
Newsgroups: gmane.emacs.help
Subject: What does "lacks a prefix" mean?
Date: Wed, 8 Jul 2015 09:32:59 -0700 (PDT)
Message-ID: <1e0ad02f-ca3e-495c-bb85-61f77090d31d@googlegroups.com>
NNTP-Posting-Host: plane.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
X-Trace: ger.gmane.org 1436373319 16199 80.91.229.3 (8 Jul 2015 16:35:19 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Wed, 8 Jul 2015 16:35:19 +0000 (UTC)
To: help-gnu-emacs@gnu.org
Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Jul 08 18:35:18 2015
Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>
Envelope-to: geh-help-gnu-emacs@m.gmane.org
Original-Received: from lists.gnu.org ([208.118.235.17])
	by plane.gmane.org with esmtp (Exim 4.69)
	(envelope-from <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>)
	id 1ZCsJa-0007K8-Ic
	for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Jul 2015 18:35:18 +0200
Original-Received: from localhost ([::1]:35967 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>)
	id 1ZCsJZ-00039E-Tu
	for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Jul 2015 12:35:17 -0400
X-Received: by 10.50.50.161 with SMTP id d1mr22875120igo.6.1436373180162;
	Wed, 08 Jul 2015 09:33:00 -0700 (PDT)
X-Received: by 10.140.98.138 with SMTP id o10mr170111qge.33.1436373179988;
	Wed, 08 Jul 2015 09:32:59 -0700 (PDT)
Original-Path: usenet.stanford.edu!i4no126668ige.0!news-out.google.com!4ni79763qgh.1!nntp.google.com!w90no1751441qge.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Original-Newsgroups: gnu.emacs.help
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=184.61.70.127;
	posting-account=9hbhDwoAAABs5yR7ZnWiLXjb_7uCgBXB
Original-NNTP-Posting-Host: 184.61.70.127
User-Agent: G2/1.0
Injection-Date: Wed, 08 Jul 2015 16:32:59 +0000
Original-Xref: usenet.stanford.edu gnu.emacs.help:213243
X-BeenThere: help-gnu-emacs@gnu.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Users list for the GNU Emacs text editor <help-gnu-emacs.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=subscribe>
Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org
Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org
Xref: news.gmane.org gmane.emacs.help:105530
Archived-At: <http://permalink.gmane.org/gmane.emacs.help/105530>

My elisp:

(defun blabba ()
  (defvar n 0)
)

byte-compile-file yields this:

  In blabba:
  test.el:1:8:Warning: global/dynamic var `n' lacks a prefix

What does my elisp lack?
Other than asking here, where can I learn what "lacks a prefix" means?