GNU bug report logs - #36405
26.2.90; O_PATH problem on some versions of Cygwin

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ken Brown <kbrown <at> cornell.edu>
Subject: bug#36405: closed (Re: 26.2.90; O_PATH problem on some versions
 of Cygwin)
Date: Thu, 27 Jun 2019 20:48:03 +0000

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Your bug report

#36405: 26.2.90; O_PATH problem on some versions of Cygwin

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 36405 <at> debbugs.gnu.org.

-- 
36405: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36405
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: 36405-done <at> debbugs.gnu.org
Subject: Re: 26.2.90; O_PATH problem on some versions of Cygwin
Date: Thu, 27 Jun 2019 13:47:27 -0700

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Thanks, but that patch intrudes on the mainline code a bit. It's simpler 
to just disable O_PATH on Cygwin until the old Cygwin versions die out. 
Also, there's a similar issue in fileio.c. I installed the attached, 
which should work around the problem in both source files.

[0001-Work-around-Cygwin-bug-with-O_PATH.patch (text/x-patch, attachment)]

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From: Ken Brown <kbrown <at> cornell.edu>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 26.2.90; O_PATH problem on some versions of Cygwin
Date: Thu, 27 Jun 2019 19:28:48 +0000

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Cygwin supports the O_PATH flag starting with release 3.0.0, but it is buggy 
until release 3.0.8.  (Opening a FIFO with O_PATH causes a hang.)  The attached 
patches work around this problem.  The first patch (which still has a bug number 
that needs to be filled in) uses incorrect indentation for legibility.  The 
second patch fixes the indentation.

Ken

[0001-Avoid-O_PATH-on-versions-of-Cygwin-where-it-is-buggy.patch (text/plain, attachment)]

[0002-src-dired.c-file_attributes-Fix-indentation.patch (text/plain, attachment)]

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