From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <cygwin@jdrake.com>
Received: from mail231.csoft.net (mail231.csoft.net [96.47.74.235])
 by sourceware.org (Postfix) with ESMTPS id 78B4F385BF9E
 for <cygwin@cygwin.com>; Tue,  8 Jun 2021 00:01:47 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 78B4F385BF9E
Received: from mail231.csoft.net (localhost [127.0.0.1])
 by mail231.csoft.net (Postfix) with ESMTP id A6AF4CB66
 for <cygwin@cygwin.com>; Mon,  7 Jun 2021 20:01:44 -0400 (EDT)
Received: from mail231 (mail231 [96.47.74.235])
 (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits))
 (No client certificate requested) (Authenticated sender: jeremyd)
 by mail231.csoft.net (Postfix) with ESMTPSA id A2CD7CB64
 for <cygwin@cygwin.com>; Mon,  7 Jun 2021 20:01:44 -0400 (EDT)
Date: Mon, 7 Jun 2021 17:01:44 -0700 (PDT)
From: Jeremy Drake <cygwin@jdrake.com>
X-X-Sender: jeremyd@resin.csoft.net
To: cygwin@cygwin.com
Subject: Re: realpath issue with native[strict] symlinks
In-Reply-To: <alpine.BSO.2.21.2105281219150.14962@resin.csoft.net>
Message-ID: <alpine.BSO.2.21.2106071656530.30039@resin.csoft.net>
References: <alpine.BSO.2.21.2105271316590.14962@resin.csoft.net>
 <alpine.BSO.2.21.2105281219150.14962@resin.csoft.net>
User-Agent: Alpine 2.21 (BSO 202 2017-01-01)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
X-Spam-Status: No, score=-6.3 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, SPF_HELO_PASS,
 SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: cygwin@cygwin.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-request@cygwin.com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=subscribe>
X-List-Received-Date: Tue, 08 Jun 2021 00:01:57 -0000

On Fri, 28 May 2021, Jeremy Drake wrote:

> On Thu, 27 May 2021, Jeremy Drake wrote:
>
> > > > Treating mapped/subst drives as though they were not symlinks, without
> > > > messing with intermedate symlinks.
> > >
> > > It was that simple, surprise, surprise...
> >
> > It turns out it wasn't, after all.  This only seems to work at the root of
> > a subst-ed drive.  I just got the following error:
>

There was another report of someone running into an issue with this
change, though not exactly the same situation as mine:
https://github.com/msys2/msys2-runtime/issues/41#issuecomment-854913283

It seems that a mapped network drive is being 'dereferenced', confusing
eclipse trying to find source files from debug info from an arm
cross-compiler.

Unfortunately I have not heard back whether or not my patch helps this
case.