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: package.el can't install a circular depend and it should be able to. Date: Fri, 11 Jan 2013 18:27:58 -0500 Message-ID: References: <87fw2h94mg.fsf@ferrier.me.uk> <8738yh10u9.fsf@fleche.redhat.com> <87r4m0c1jz.fsf@uwakimon.sk.tsukuba.ac.jp> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1357946913 22435 80.91.229.3 (11 Jan 2013 23:28:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 11 Jan 2013 23:28:33 +0000 (UTC) Cc: Tom Tromey , Nic Ferrier , emacs-devel@gnu.org To: "Stephen J. Turnbull" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 12 00:28:50 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 1Tto1h-0006An-QD for ged-emacs-devel@m.gmane.org; Sat, 12 Jan 2013 00:28:41 +0100 Original-Received: from localhost ([::1]:33812 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tto1R-0006rq-SV for ged-emacs-devel@m.gmane.org; Fri, 11 Jan 2013 18:28:25 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:49877) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tto1H-0006n8-FM for emacs-devel@gnu.org; Fri, 11 Jan 2013 18:28:24 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tto12-0000m5-AR for emacs-devel@gnu.org; Fri, 11 Jan 2013 18:28:15 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:35701) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tto12-0000lc-5z for emacs-devel@gnu.org; Fri, 11 Jan 2013 18:28:00 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtkGAG6Zu09MCpYP/2dsb2JhbABEgXuyFoEIghUBAQQBViMQCzQSFBgNJIgcBboJkEQDiEKacYFYgwc X-IronPort-AV: E=Sophos;i="4.75,637,1330923600"; d="scan'208";a="212337046" Original-Received: from 76-10-150-15.dsl.teksavvy.com (HELO pastel.home) ([76.10.150.15]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 11 Jan 2013 18:27:59 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id 2AF8A5943D; Fri, 11 Jan 2013 18:27:58 -0500 (EST) In-Reply-To: <87r4m0c1jz.fsf@uwakimon.sk.tsukuba.ac.jp> (Stephen J. Turnbull's message of "Sat, 05 Jan 2013 02:15:12 +0900") 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: 206.248.154.182 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:156240 Archived-At: >> A real circular graph isn't supported. I guess it could be, though to >> me it seems like this would have to be some kind of packaging confusion. > Why is it confusion? Lisp environments have always supported mutual > recursion. I'll grant that it would normally be technically possible > to refactor the packages to avoid it at the library level, but it > might be administratively inconvenient due to separate maintainership > and the like, or simply an historical artifact that the maintainers > don't want to refactor immediately. I don't see why those cases > shouldn't be supported, although it might be appropriate to warn. I partly agree, but mutual recursion between ELPA packages should be pretty damn rare (as opposed to mutual recursion between individual Elisp files), so I don't think it's worth worrying about it. Stefan