From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Glenn Morris Newsgroups: gmane.emacs.devel Subject: Timestamp information in .elc files Date: Fri, 08 Mar 2013 04:08:37 -0500 Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1362733728 7508 80.91.229.3 (8 Mar 2013 09:08:48 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 8 Mar 2013 09:08:48 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Mar 08 10:09:09 2013 Return-path: Envelope-to: ged-emacs-devel@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 1UDtIb-0004qb-3R for ged-emacs-devel@m.gmane.org; Fri, 08 Mar 2013 10:09:09 +0100 Original-Received: from localhost ([::1]:42032 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDtIF-00011x-7L for ged-emacs-devel@m.gmane.org; Fri, 08 Mar 2013 04:08:47 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:44262) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDtIB-00011h-Gd for emacs-devel@gnu.org; Fri, 08 Mar 2013 04:08:44 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDtI6-0002cG-QS for emacs-devel@gnu.org; Fri, 08 Mar 2013 04:08:43 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:47998) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDtI6-0002cC-NQ for emacs-devel@gnu.org; Fri, 08 Mar 2013 04:08:38 -0500 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1UDtI5-0005Ol-Kx; Fri, 08 Mar 2013 04:08:37 -0500 X-Spook: AIEWS Craig Livingstone Mahmoud Ahmadinejad NWO IDEA X-Ran: 's^GwDxs^OP0eq8no7]k1,#03!wA{nJSAgHUccbGSXX*.iWp(v.*0XagH`;Vb"]3L6WL/Y X-Hue: yellow X-Attribution: GM User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:157589 Archived-At: .elc files start with a comment like this: ;;; Compiled by user@host on Sun Mar 3 23:34:26 2013 I have never used this information, and I can never imagine needing it. I find it annoying because it means .elc files change on every compilation. Diffing two trees containing .elc files reports spurious differences for every single .elc file due to this (admittedly, you can avoid this by using diff -I). Is this timestamp useful in any way?