DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:subject:to:references:from:message-id:date
	:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=ZwQRX7TuVdLU41RZ
	GCZM0Mqke158jIDVuhHP66YGWwMG3nDVUsn2KkTprNCLdVBF/dxZCRAaNdL+21nU
	epMjdY9plvxZZ+yDrmqmkZA3t7OiTeTKF8JvOAE8lx6z1Y/G2JU3cCf0gP4Z8tdS
	T+vv1AGoBjRauPphNT9mtGQCrVg=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Subject: Re: distinguishing cygwin from mingw binaries
To: cygwin@cygwin.com
References: <BN6PR2001MB1074F351B65B71F7B8B41143F1A90@BN6PR2001MB1074.namprd20.prod.outlook.com>
From: cyg Simple <cygsimple@gmail.com>
Message-ID: <728bfde3-3608-3a81-131e-f012aaa6cdce@gmail.com>
Date: Tue, 11 Jul 2017 10:37:48 -0400
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1
MIME-Version: 1.0
In-Reply-To: <BN6PR2001MB1074F351B65B71F7B8B41143F1A90@BN6PR2001MB1074.namprd20.prod.outlook.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit

On 7/10/2017 1:40 PM, Nellis, Kenneth wrote:
> For my personal use, I use gcc to generate binaries, but occasionally I need 
> to make a binary available to someone who doesn't use Cygwin. For that I use 
> Cygwin's x86_64-w64-mingw32-gcc.
> 
> After the fact, I would like to know whether the binary requires Cygwin support 
> or not. One way is: strings foo.exe | grep cygwin1.dll
> 
> Curious what techniques others might use.
> 

I would use a --prefix or whatever defines the install directories in
your cases to be something easily recognizable and install it.  Then
execute a recursive grep on that folder.

grep -lir --binary-files=binary cygwin1.dll /my/install/dir

If a file is listed then you can decide what to do next.

-- 
cyg Simple

--
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