From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Rusi Newsgroups: gmane.emacs.help Subject: How to find when a feature was introduced Date: Thu, 7 Jul 2016 21:28:06 -0700 (PDT) Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1467952235 24459 80.91.229.3 (8 Jul 2016 04:30:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 8 Jul 2016 04:30:35 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 08 06:30:35 2016 Return-path: 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 ) id 1bLNQu-0008Qn-86 for geh-help-gnu-emacs@m.gmane.org; Fri, 08 Jul 2016 06:30:32 +0200 Original-Received: from localhost ([::1]:43501 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLNQq-0004Xc-3l for geh-help-gnu-emacs@m.gmane.org; Fri, 08 Jul 2016 00:30:28 -0400 X-Received: by 10.157.60.5 with SMTP id q5mr3359141otc.14.1467952086947; Thu, 07 Jul 2016 21:28:06 -0700 (PDT) X-Received: by 10.36.17.15 with SMTP id 15mr47132itf.10.1467952086884; Thu, 07 Jul 2016 21:28:06 -0700 (PDT) Original-Path: usenet.stanford.edu!jk6no13655799igb.0!news-out.google.com!d68ni131ith.0!nntp.google.com!jk6no13655793igb.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=123.201.38.238; posting-account=mBpa7woAAAAGLEWUUKpmbxm-Quu5D8ui Original-NNTP-Posting-Host: 123.201.38.238 User-Agent: G2/1.0 Injection-Date: Fri, 08 Jul 2016 04:28:06 +0000 Original-Xref: usenet.stanford.edu gnu.emacs.help:218412 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:110721 Archived-At: Student sent me this Symbol's function definition is void: with-eval-after-load Figured this came from a slightly oldish ubuntu Then found the with-eval-after-load in gnu-apl-mode So now I need to tell my students gnu-apl-mode will not run in emacsen less than version X How to find out X?