Yes that did it.  The problem was definitely caused by virus scan - McAfee.  
Not sure why, but excluding the folder from on-access scanner did not get rid 
of the error.  Only by completely disabling Access Protection and On-Access 
Scanner in the McAfee console was I able to complete the configure script for 
ImageMagick on my Cygwin installation.  

Thanks for the help and hope this will help others who encounter this problem.  

-----Original Message-----
From: cygwin-ow...@cygwin.com [mailto:cygwin-ow...@cygwin.com] On Behalf Of Ken 
Brown
Sent: Friday, October 14, 2016 3:23 PM
To: cygwin@cygwin.com
Subject: Re: Errors using configure when building packages

On 10/14/2016 1:46 PM, Sinkler, Wharton wrote:
> I've got a new Cygwin installation on Win7, which has issues with configure, 
> the first step of building packages from source (I've seen this with 
> ImageMagick, libtiff and others so it's not specific to the package I'm 
> installing).
>
> It seems to sporadically be unable to remove a file 'conftest.exe' which is 
> compiled in the tests within configure.  This shows up during configure as:
>
> rm: cannot remove 'conftest.exe': Device or resource busy
>
> The configure will then fail completely when this causes a critical test to 
> fail.
>
> I suspect that this might have something to do with slowness to release an 
> in-use file (the conftest.exe) in the Win7 operating system.  I've searched 
> the archives and don't see this exact issue showing up in previous posts.  
> Have others experienced this problem?  Is there a fix which will allow me to 
> complete building these packages?

Do you have security software installed that might be interfering with Cygwin?

Ken


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