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Date: Fri, 25 Apr 2014 15:15:45 -0400
From: Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: 64-bit vs. 32-bit
Message-ID: <20140425191545.GA5191@ednor.casa.cgf.cx>
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References: <CABn7SNZTwj+qKg+8J2GoofuydN2QNj0B2K_r4ZDgQT0uhqgbNQ AT mail DOT gmail DOT com> <535AA7C5 DOT 1080002 AT xs4all DOT nl>
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User-Agent: Mutt/1.5.20 (2009-06-14)

On Fri, Apr 25, 2014 at 08:21:57PM +0200, Erwin Waterlander wrote:
>Op 25-4-2014 20:13 Tom Szczesny schreef:
>> result from uname -a
>> CYGWIN_NT-6.1-WOW64 Toshiba 1.7.17(0.262/5/3) 2012-10-19 14:39 i686 Cygwin
>
>uname -a on 64 bit cygwin should say something like:
>
>CYGWIN_NT-6.1 PC2 1.7.28(0.271/5/3) 2014-02-09 21:06 x86_64 Cygwin
>
>Note there is no "WOW64", and there is a "x86_64".
>
>>Sorry that I was not clear.  I have an open source app (hosted on
>>github.com) that was developed for Linux.  It compiles and works on
>>Windows-64 using my current version of Cygwin, but I suspect that I am
>>getting a 32-bit executable as a result.
>>
>>I wish to get a 64-bit executable, which I intend to redistribute to
>>other Windows users.
>>
>>Do I need to uninstall my 32-bit version of Cygwin from my laptop
>>before I install the 64-bit version of Cygwin?
>>
>No, you can have both 32 and 64 bit Cygwin installed.

Right.  Just install the 64-bit Cygwin in a different location.

Note that if you distribute your executable you will have to pay
attention to the terms of the GPL - you'll need to provide all of the
source code for everything you distribute, including the Cygwin DLL.

cgf

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