From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Engster Newsgroups: gmane.emacs.bugs Subject: bug#16008: semantic/grammar-wy.el cannot be bootstrapped Date: Sat, 30 Nov 2013 11:00:47 +0100 Message-ID: <8738me5hv4.fsf__4781.40392010591$1385805688$gmane$org@engster.org> References: <677gbqhcbh.fsf@fencepost.gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1385805677 18156 80.91.229.3 (30 Nov 2013 10:01:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 30 Nov 2013 10:01:17 +0000 (UTC) Cc: 16008@debbugs.gnu.org, cedet-devel@lists.sourceforge.net To: Glenn Morris Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Nov 30 11:01:21 2013 Return-path: Envelope-to: geb-bug-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 1VmhMW-0003he-L9 for geb-bug-gnu-emacs@m.gmane.org; Sat, 30 Nov 2013 11:01:20 +0100 Original-Received: from localhost ([::1]:51429 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VmhMW-0005mT-A7 for geb-bug-gnu-emacs@m.gmane.org; Sat, 30 Nov 2013 05:01:20 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57993) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VmhMN-0005mJ-3R for bug-gnu-emacs@gnu.org; Sat, 30 Nov 2013 05:01:17 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VmhME-0002fO-Np for bug-gnu-emacs@gnu.org; Sat, 30 Nov 2013 05:01:11 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:37143) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VmhME-0002fG-LJ for bug-gnu-emacs@gnu.org; Sat, 30 Nov 2013 05:01:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VmhMD-000602-Vr for bug-gnu-emacs@gnu.org; Sat, 30 Nov 2013 05:01:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: David Engster Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 30 Nov 2013 10:01:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16008 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 16008-submit@debbugs.gnu.org id=B16008.138580565923054 (code B ref 16008); Sat, 30 Nov 2013 10:01:01 +0000 Original-Received: (at 16008) by debbugs.gnu.org; 30 Nov 2013 10:00:59 +0000 Original-Received: from localhost ([127.0.0.1]:51162 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VmhM9-0005zk-5R for submit@debbugs.gnu.org; Sat, 30 Nov 2013 05:00:57 -0500 Original-Received: from randomsample.de ([5.45.97.173]:52300) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VmhM6-0005zX-3z for 16008@debbugs.gnu.org; Sat, 30 Nov 2013 05:00:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=randomsample.de; s=a; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From; bh=5Aj3Dvam0pd5cG2PQOplTGYxJrdvxhxwd3WNmxE4Ff0=; b=aowwElrD18eqrpeOfyK7jqUaF8dFRueqA11m3MpHtWwqjskCDmKu1xtL3FZV9O4yF/uf5CabmYxthrpRjr31tvveDb/QClJxoDTRyuCdeMc8L2vkLvJTbsRpjf5Q4tXy; Original-Received: from dslc-082-083-033-059.pools.arcor-ip.net ([82.83.33.59] helo=spaten) by randomsample.de with esmtpsa (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1VmhM4-0006ER-2b; Sat, 30 Nov 2013 11:00:52 +0100 In-Reply-To: <677gbqhcbh.fsf@fencepost.gnu.org> (Glenn Morris's message of "Fri, 29 Nov 2013 21:07:30 -0500") User-Agent: Gnus/5.130008 (Ma Gnus v0.8) Emacs/24.3 (gnu/linux) Mail-Copies-To: never Mail-Followup-To: Glenn Morris , 16008@debbugs.gnu.org, cedet-devel@lists.sourceforge.net X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:81135 Archived-At: Glenn Morris writes: > semantic/grammar-wy.el is a generated file and therefore ideally should > not be kept in the Emacs VCS. That's true for all parsers. However, grammar-wy.el is special, as you've noticed. > It is generated by semantic/grammar.el. > semantic/grammar.el requires semantic/grammar-wy.el, therefore > it is not possible to bootstrap without semantic/grammar-wy.el already > present. Yes, it has a circular dependency, because the parser grammar-wy.el parses grammar files, including itself. In upstream, we have a fallback parser for this, which is used when grammar-wy.el is not present yet. Needless to say, you'll soon face chicken/egg problems when you do changes in grammar.wy, which IMHO cause more pain in the rear than having generated files under version control. In fact, every time I worked on grammar.wy, I thought about getting rid of bootstrapping at compile time and just put all parsers under version control. > I should also note that the version of semantic/grammar-wy.el in the > Emacs trunk does not match up with its sources. > > It contains: > > (require 'semantic) > > Yet if you regenerate it, it contains: > > (require 'semantic/lex) > (eval-when-compile (require 'semantic/bovine)) Yes, there may be small differences w.r.t. to requires and such. The generated parsers should never differ, though. Problem is: the freeze is near, and I have to do another sync with upstream, and I'd also really like to get a few things fixed before that. -David