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Subject:	Re: Updated [test]: bash-4.4.5-1
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From:	Eric Blake <eblake AT redhat DOT com>
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From: Eric Blake <eblake AT redhat DOT com>
To: The Cygwin Mailing List <cygwin AT cygwin DOT com>
Message-ID: <669c7f78-0f30-2e7b-4f5b-e9b2ffbc2da0 AT redhat DOT com>
Subject: Re: Updated [test]: bash-4.4.5-1
References: <47a95317-4845-16fb-21db-3befaa8b94be AT redhat DOT com>
In-Reply-To: <47a95317-4845-16fb-21db-3befaa8b94be AT redhat DOT com>


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On 12/13/2016 04:30 PM, Eric Blake (cygwin) wrote:
> A new release of bash, 4.4.5-1, has been uploaded and will soon reach a
> mirror near you.  For now it is marked experimental, and requires the
> use of experimental readline7-7.0.1-1 (leaving bash 4.3.48-8 as the
> current version).  But if no major complaints are raised during testing,
> this will be promoted to current in a few days.

In testing this, I've noticed that the cygport install sub-command is
rather noisy on some binaries, due to its use of undefined behavior in
$() that causes the new bash to emit a warning:

/usr/share/cygport/lib/src_postinst.cygpart: line 970: warning: command
substitution: ignored null byte in input
/usr/share/cygport/lib/src_postinst.cygpart: line 977: warning: command
substitution: ignored null byte in input

A simple solution would be:

- case $(tail -c 12 "${exe}") in
+ case $(tail -c 12 "${exe}" | tr -d \\0) in

I'll wait to promote bash 4.4 to current until after I know if it is
worth waiting for a speedy cygport update.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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