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Date: Mon, 12 Mar 2001 11:28:50 -0500
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin-developers AT cygwin DOT com
Subject: Re: Outstanding issues with current DLL?
Message-ID: <20010312112850.A29769@redhat.com>
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In-Reply-To: <165324789542.20010312182059@logos-m.ru>; from deo@logos-m.ru on Mon, Mar 12, 2001 at 06:20:59PM +0300

On Mon, Mar 12, 2001 at 06:20:59PM +0300, Egor Duda wrote:
>Hi!
>
>Sunday, 11 March, 2001 Christopher Faylor cgf AT redhat DOT com wrote:
>
>>>CF> Btw, the reason for the --enable-debugging switch is to build a cygwin1.dll
>>>CF> which timestamps all of its shared memory stuff.  This allows two versions
>>>CF> of cygwin to be running on the system at the same time.
>>>
>>>do   we   really   need   this?  suppose a some problem  reports about
>>>current  snapshots  we've  seen  here this week can be due  to several
>>>cygwin1.dll's.  at least freezes can be easily explained if we suppose
>>>such  possibility. when process 'exec's some cygwin program which sees
>>>other  cygwin1.dll,  it surely will break in an unpredictable way when
>>>doing fdtab.fixup_after_exec in dll_crt0_1()
>
>CF> Hopefully the version numbering in the exec header should catch this.
>CF> I'll bump it up, just to make sure.
>
>ah. i found the thing that confused me. it really suppose to timestamp
>shared  region  name,  but  it seems to me that it doesn't. version.cc
>checks if DEBUGGING is set, but it doesn't include config.h.
>should we

Very strange.  I must be hallucinating.  I *know* that I've had problems
with region conflicts in the past and have solved them by building with
--enable-debugging.

Oh well.  I've checked in a patch to mkvers.sh.

cgf