Bug#666040: linux-image-3.2.0-486 has undeclared dependency on dpkg >= 1.15.6

[Wookey <wookey@wookware.org>]

Package: linux-image-3.2.0-2-486 
Version: 3.2.12-1

I tried to install a wheezy 3.2 kernel package on an old lenny box
because a bit of USB hardware needed a newish kernel. 

This almost worked very well, with minimal packages upgraded, but I
got this error:
Unpacking linux-image-3.2.0-2-486 (from
.../linux-image-3.2.0-2-486_3.2.12-1_i386.deb) ...
dpkg-deb: file /var/cache/apt/archives/linux-image-3.2.0-2-486_3.2.12-1_i386.deb'
contains ununderstood data member data.tar.xz     , giving up
dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-2-486_3.2.12-1_i386.deb (--unpack):
 subprocess dpkg-deb --fsys-tarfile returned error exit status 2

It seems that the problem is that the version of dpkg in lenny, 1.14.31, does not
understand .xz. v1.15.6 is needed for that:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542160

linux-image-3.2.0-2-486 ought to declare this (or stop using xz so that it can be
installed on very old machines, but that's probably not worth doing for this rather
obscure case).

Wookey
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