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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Building master fails on Windows 10 when testing etc/NEWS file
Date: Wed, 18 Sep 2019 15:44:04 +0300
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To: Paul Eggert <eggert@cs.ucla.edu>
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In-reply-to: <1840bbb1-50de-870d-99d9-b4340e3c3b92@cs.ucla.edu> (message from
 Paul Eggert on Wed, 18 Sep 2019 05:23:20 -0700)
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> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Wed, 18 Sep 2019 05:23:20 -0700
> Cc: Richard Copley <rcopley@gmail.com>, martin rudalics <rudalics@gmx.at>,
>  emacs-devel <emacs-devel@gnu.org>
> 
> >    ELC      ../lisp/replace.elc
> > Can't find D:\Devel\emacs\repo\trunk\src\bootstrap-emacs.exe to refresh
> > preloaded Lisp files
> 
> Thanks, I installed the attached to try to fix that.

It can't.  The problem is that openp expects file_directory_p to
return ENOTDIR for a file that exists, but is not a directory.  This
kludge was never documented, and so the DOS_NT implementation didn't
support it.  That totally confused the logic in openp.