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Date: Wed, 10 Oct 2007 01:56:00 -0000
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From: DJ Delorie <dj@redhat.com>
To: msnyder@specifix.com
CC: gdb-patches@sourceware.org, rsandifo@nildram.co.uk, schwab@suse.de,         bkoz@redhat.com
In-reply-to: <1191977857.4409.0.camel@localhost.localdomain> (message from 	Michael Snyder on Tue, 09 Oct 2007 17:57:37 -0700)
Subject: Re: [RFA] top level configure and makeinfo/texinfo
References:  <1191977857.4409.0.camel@localhost.localdomain>
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> -       | egrep 'texinfo[^0-9]*(4\.([6-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
> +       | egrep 'texinfo[^0-9]*(4\.([6-9]|4\.[1-9][0-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then

Um, the first matches:
	4.[6-9]
	4.[1-9][0-9]
	[5-9].*
	[1-9][0-9].*

Yours matches:
	4.[6-9]
	4.4.[1-9][0-9]
	4.[1-9][0-9]
	[5-9].*
	[1-9][0-9].*

I don't think this is what you want.