From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: [Emacs-diffs] emacs-25 33ec2ff: Add one more mod-test test Date: Sun, 29 Nov 2015 18:15:59 +0200 Message-ID: <83k2p0ok74.fsf@gnu.org> References: <20151124191433.3972.80810@vcs.savannah.gnu.org> <565A5EF3.1000900@cornell.edu> <83wpt1o4iw.fsf@gnu.org> <565B1803.5090805@cornell.edu> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1448813786 11429 80.91.229.3 (29 Nov 2015 16:16:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 29 Nov 2015 16:16:26 +0000 (UTC) Cc: emacs-devel@gnu.org To: Ken Brown Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Nov 29 17:16:14 2015 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 1a34e5-0007DU-L4 for ged-emacs-devel@m.gmane.org; Sun, 29 Nov 2015 17:16:13 +0100 Original-Received: from localhost ([::1]:36808 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a34e9-00034G-L6 for ged-emacs-devel@m.gmane.org; Sun, 29 Nov 2015 11:16:17 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57355) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a34e6-00033w-9u for emacs-devel@gnu.org; Sun, 29 Nov 2015 11:16:15 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a34e2-0000VB-7C for emacs-devel@gnu.org; Sun, 29 Nov 2015 11:16:14 -0500 Original-Received: from mtaout24.012.net.il ([80.179.55.180]:42423) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a34e1-0000V3-VS for emacs-devel@gnu.org; Sun, 29 Nov 2015 11:16:10 -0500 Original-Received: from conversion-daemon.mtaout24.012.net.il by mtaout24.012.net.il (HyperSendmail v2007.08) id <0NYL00M0035NLV00@mtaout24.012.net.il> for emacs-devel@gnu.org; Sun, 29 Nov 2015 18:08:55 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by mtaout24.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NYL00LMT3IVJ320@mtaout24.012.net.il>; Sun, 29 Nov 2015 18:08:55 +0200 (IST) In-reply-to: <565B1803.5090805@cornell.edu> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 80.179.55.180 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:195547 Archived-At: > Cc: emacs-devel@gnu.org > From: Ken Brown > Date: Sun, 29 Nov 2015 10:21:39 -0500 > > >> Does the missing "from" indicate a bug in the Cygwin build? > > > > It indicates that your dladdr implementation doesn't work (probably > > returns zero). > > > > Please ask on the Cygwin list, and if dladdr is indeed missing, the > > test should be updated to accommodate for this return value on Cygwin. > > Thanks. In fact, dladdr isn't implemented on Cygwin, so dynlib_addr > always returns false. I'll update the test. Thanks. > Should the update be Cygwin-specific? According to > http://linux.die.net/man/3/dladdr, dladdr is a glibc extension to > POSIX, so there could conceivably be other systems with the same > issue. Could be, but I don't know which systems might have this problem. If you or someone else have access to *BSD or Solaris, please try that there. I wouldn't recommend blindly do that everywhere except GNU/Linux and Windows, because then we could miss some systems where the functionality is available, but something needs to be done to have it. So I think it's best to fail (pun intended) on the safe side.