Bug#543149: console-setup: perl errors during installation

["Yann Dirson" <ydirson@linagora.com>]

> On Monday 31 August 2009, Yann Dirson wrote:
>> This seems to be similar to #480533, which was apparently fixed by
>> moving more stuff to perl-base.
>
> I very much doubt it is related as the version of perl that fixed #480533
> is ancient (included in stable). So if that change had fixed it, then I
> would never have seen the problem when I did.
>
> It may be that *a* solution to this issue could be to move yet more stuff
> to perl-base, but I doubt that is desirable.
>
> IMO console-setup should, if at all possible, make sure that it only uses
> functions available in current perl-base. Neither extending perl-base,
> nor having console-setup depend on perl are desirable solutions.

If I understand correctly what happened with #480533, it was a
utf8-related module that was already part of perl-base, which suddenly
gained dependencies it did not have prior to that.  I thought we could be
hitting the same problem again.