From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Witness computation - minor breakage in the build system Date: Sun, 12 Jan 2014 09:51:36 -0500 Message-ID: References: <20140112043735.C0A2E380523@snark.thyrsus.com> <52D21EFA.1010905@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1389538309 5026 80.91.229.3 (12 Jan 2014 14:51:49 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 12 Jan 2014 14:51:49 +0000 (UTC) Cc: "Eric S. Raymond" , emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jan 12 15:51:55 2014 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 1W2MOJ-0002D4-8S for ged-emacs-devel@m.gmane.org; Sun, 12 Jan 2014 15:51:55 +0100 Original-Received: from localhost ([::1]:38158 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W2MOI-0005KQ-RS for ged-emacs-devel@m.gmane.org; Sun, 12 Jan 2014 09:51:54 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57020) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W2MO9-0005KA-0n for emacs-devel@gnu.org; Sun, 12 Jan 2014 09:51:52 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W2MO1-0000vC-N7 for emacs-devel@gnu.org; Sun, 12 Jan 2014 09:51:44 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:54563) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W2MO1-0000v7-J3 for emacs-devel@gnu.org; Sun, 12 Jan 2014 09:51:37 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4EABK/CFFMCoyj/2dsb2JhbABEDr8AF3OCHgEBBAFWHgUQCzQSFBgNJIgeBsEtkQoDiGGcGYFegjlc X-IPAS-Result: Av4EABK/CFFMCoyj/2dsb2JhbABEDr8AF3OCHgEBBAFWHgUQCzQSFBgNJIgeBsEtkQoDiGGcGYFegjlc X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="44771062" Original-Received: from 76-10-140-163.dsl.teksavvy.com (HELO pastel.home) ([76.10.140.163]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 12 Jan 2014 09:51:36 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id DAB75600D7; Sun, 12 Jan 2014 09:51:36 -0500 (EST) In-Reply-To: <52D21EFA.1010905@cs.ucla.edu> (Paul Eggert's message of "Sat, 11 Jan 2014 20:50:02 -0800") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.181 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:168186 Archived-At: >> I think the fixed Makefile code would remain unpleasantly fragile, >> and the witness-path computation is best moved to the >> configure stage. > I've never understood the need for having the last-repository-change > date affect the build, and would favor removing all the > vcswitness stuff. Simple: - "make autoloads" causes an undesirable re-dump even when no autoload changed. - for that reason "autoloads" is not in the dependencies and is not always run. So the vcswitness is a completely opportunistic hack which forces a "make autoloads" every once in a while. Stefan