DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:message-id:date:from:mime-version:to:subject
	:references:in-reply-to:content-type:content-transfer-encoding;
	 q=dns; s=default; b=FTr/fWPAyLDgM7vCHn0zn5futdtGHeJu4olyVJAMH9X
	BJ06r3pVfnzGVdJFZxsF7MTEz0/U5X/w89oBXVlH9Rvzwogg6lp2AM4C1mIl/7QL
	YCJB7RHBSG63QkFuKtGaA8w1DuBMqegfgY4ZnLxZonW+Fgt8oH5cjGwPsrJWOL1A
	=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Message-ID: <551559CA.3010101@gmail.com>
Date: Fri, 27 Mar 2015 14:23:22 +0100
From: Marco Atzeri <marco.atzeri@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0
MIME-Version: 1.0
To: cygwin@cygwin.com
Subject: Re: Fwd: Compatibility of binaries built with one version of cygwin with other versions of cygwin
References: <CAAEKttyS4UaLyvMRucn==kBGZCfZJVw_r_hxP1i+HXmSZFgDvQ@mail.gmail.com> <CAAEKttyhPE0hxqfRb6yFQcfyNRnDASWfMDzwe66eKmVeoPGykw@mail.gmail.com>
In-Reply-To: <CAAEKttyhPE0hxqfRb6yFQcfyNRnDASWfMDzwe66eKmVeoPGykw@mail.gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit

On 3/27/2015 2:01 PM, Tom Kacvinsky wrote:
> Question:  if I build an executable/shared library on one version of
> cygwin, is it guaranteed to work on later versions of cygwin, or is
> that not recommended?
>
> I learned the difficult way that building on one version and running
> on an earlier version doesn't work.  My binaries are based on C++
> code, so there is a dependency on libstd++ and libgcc_s (using the
> Linux names for these libraries) and that is where I think I was
> getting burned.  I don't think it is a problem with cygwin1.dll
>
> Thanks,
>
> Tom
>

compatibility is expected forward not backward.
New versions may have additional features that of course are not
available backward.

Regards
Marco

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple