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Date:	Sun, 8 Nov 2009 13:29:16 -0500
From:	Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
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Subject:	Re: 1.7] BUG - GREP slows to a crawl with large number of matches on a single file
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On Sun, Nov 08, 2009 at 12:27:29PM -0600, Yaakov (Cygwin/X) wrote:
>On 08/11/2009 07:56, Corinna Vinschen wrote:
>> Btw., the check for mmap in grep's configure file is broken.  It tries
>> to mmap to a fixed address formerly allocated via malloc().  This doesn't
>> work on Windows.  An autoconf run with a newer version of autoconf would
>> be nice.
>
>You said the same thing over five years ago: :-)
>
>http://www.cygwin.com/ml/cygwin/2004-09/msg00753.html
>
>AFAIK the autoconf test has not changed since then.  cygport sets 
>ac_cv_func_mmap_fixed_mapped=yes for this very reason.

FWIW, this test doesn't really matter to my build of grep since it
is not used when cross-compiling.

cgf

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