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Date: Sun, 8 Nov 2009 15:15:48 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Broken autoconf mmap test (was Re: 1.7] BUG - GREP slows to a  crawl with large number of matches    	on  	a single file)
Message-ID: <20091108141548.GB26344@calimero.vinschen.de>
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On Nov  8 14:56, 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.

I just found that the latest autoconf *still* has this broken test
for mmap, which basically calls

  data2 = malloc (size);
  mmap(data2, ...);

Why has this test never been fixed?  Chuck?


Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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