From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: phillip.lord@russet.org.uk (Phillip Lord) Newsgroups: gmane.emacs.devel Subject: Re: Tests, Emacs-25 and Conditional Features Date: Fri, 18 Mar 2016 17:20:30 +0000 Message-ID: <87r3f7em8x.fsf@russet.org.uk> References: <87k2l2zgre.fsf@russet.org.uk> <87h9g6xzrb.fsf@gmx.de> <87shzpxvfv.fsf@russet.org.uk> <83bn6d9iml.fsf@gnu.org> <87zitwf4pz.fsf@russet.org.uk> <831t789h95.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1458321876 6843 80.91.229.3 (18 Mar 2016 17:24:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 18 Mar 2016 17:24:36 +0000 (UTC) Cc: michael.albinus@gmx.de, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Mar 18 18:24:22 2016 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 1agy85-0008Qj-Qk for ged-emacs-devel@m.gmane.org; Fri, 18 Mar 2016 18:24:05 +0100 Original-Received: from localhost ([::1]:45249 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agy7w-0001Od-W0 for ged-emacs-devel@m.gmane.org; Fri, 18 Mar 2016 13:23:57 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46513) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agy4n-0003YI-L2 for emacs-devel@gnu.org; Fri, 18 Mar 2016 13:20:45 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1agy4i-0005Q0-10 for emacs-devel@gnu.org; Fri, 18 Mar 2016 13:20:41 -0400 Original-Received: from cloud103.planethippo.com ([31.216.48.48]:51296) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agy4d-0005PZ-8r; Fri, 18 Mar 2016 13:20:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=russet.org.uk; s=default; h=Content-Type:MIME-Version:Message-ID: In-Reply-To:Date:References:Subject:Cc:To:From; bh=ZueTcXxhsakrl69dJVu8R0sPRcSjLyYmohHgoqWd3fo=; b=ZmD0JM8gJ60hgiTOBoRSnCFQkR uPaDpLwropZKUyqCPs0XjWaxmrRZsQbLW5JouygZXX4J/Kmj0Jx64PenrR/XZ0+LgCpPDlbnATfnA DlLOEzWTqk9FAkoaHVUp5pPAy3vSbuemEtguo8At4+bGd1i4h2WCOJ42n+e6zLZeluEDlzuFG03uK QjWhanZIimZ4dBVbtiSVUcw3pxOZLCytpeexI8/3KmWzKNfpkakDci8/6tNj30BCIMqCtOyVaFDPP 5UesU2WP88KTsoR2YyS2cBTvGV+h7j+vNEzj1+Bywtm96ffMG7mTq9g2Nax2nSUbs/H8cAgFBeo4e +S1d0f8w==; Original-Received: from janus-nat-128-240-225-60.ncl.ac.uk ([128.240.225.60]:55814 helo=russet.org.uk) by cloud103.planethippo.com with esmtpsa (TLSv1.2:DHE-RSA-AES128-SHA:128) (Exim 4.86_1) (envelope-from ) id 1agy4c-002HCK-Oe; Fri, 18 Mar 2016 17:20:30 +0000 In-Reply-To: <831t789h95.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 18 Mar 2016 13:07:18 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cloud103.planethippo.com X-AntiAbuse: Original Domain - gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - russet.org.uk X-Get-Message-Sender-Via: cloud103.planethippo.com: authenticated_id: phillip.lord@russet.org.uk X-Authenticated-Sender: cloud103.planethippo.com: phillip.lord@russet.org.uk X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 31.216.48.48 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:201836 Archived-At: Eli Zaretskii writes: >> Michael's example shows, we have a gnutls-available-p function which >> is defined if gnutls is not available, but for libxml, we check for >> non-definition of functions. > > It would be trivial to add a libxml2-available-p function, but I fail > to see how is this different from using fboundp. And AFAIU, in the > context of this discussion, you don't want to trust the likes of > gnutls-available-p, either. One is one way, the other is the other way. Principle of least surprise and all that stuff. Phil