From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Alan Third Newsgroups: gmane.emacs.bugs Subject: bug#30350: 27.0.50; Newest master can't run processes on macOS Date: Tue, 6 Feb 2018 08:28:41 +0000 Message-ID: <20180206082841.GA96771@breton.holly.idiocy.org> References: <616d413a-893c-a058-9620-0ac852fc8490@cs.ucla.edu> <20180205191824.GA64467@breton.holly.idiocy.org> <0bec28a7-e163-8e7c-3759-4189533f50b6@cs.ucla.edu> <59f3f90b-f19d-71be-6cf9-de8a020db174@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1517905651 21690 195.159.176.226 (6 Feb 2018 08:27:31 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 6 Feb 2018 08:27:31 +0000 (UTC) User-Agent: Mutt/1.9.3 (2018-01-21) Cc: 30350@debbugs.gnu.org, Philipp Stephani , Sam Steingold To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Feb 06 09:27:26 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eiyaw-0004Sg-4a for geb-bug-gnu-emacs@m.gmane.org; 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[2001:8b0:3f8:8129:31e7:f19a:b11e:7053]) by smtp.gmail.com with ESMTPSA id k3sm21843715wmk.3.2018.02.06.00.28.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 06 Feb 2018 00:28:43 -0800 (PST) Content-Disposition: inline In-Reply-To: <59f3f90b-f19d-71be-6cf9-de8a020db174@cs.ucla.edu> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:142965 Archived-At: On Mon, Feb 05, 2018 at 04:36:13PM -0800, Paul Eggert wrote: > The Gnulib manual says that macOS faccessat (..., "FILE/", ...) incorrectly > succeeds when FILE is a regular file, and Gnulib has code to work around > that bug that should be in effect for Emacs. However, the Gnulib manual > doesn't say that faccessat (..., "FILE/.", ...) incorrectly succeeds in this > situation, nor that faccessat (..., "FILE/./", ...) does the right thing; > and the test program I gave you didn't illustrate any bugs in this area so > I'm not sure what's going on. Bear in mind that file-accessible-directory-p works prior to call-process being run. Call-process does something that breaks it. Interestingly it breaks file-accessible-directory-p for *all* files in the same directory, so (call-process "/usr/bin/true") (file-accessible-directory-p "/usr/bin/false") fails, while (call-process "/usr/bin/true") (file-accessible-directory-p "/bin/zsh") works correctly. (Well, call-process itself fails, but file-accessible-directory-p works.) I haven’t been able to work out what it is that call-process is doing that causes this. -- Alan Third