Bug#843700: amanda-common: missing dependency on perlapi-*

[Niko Tyni]

Package: amanda-common
Version: 1:3.3.9-2
Severity: serious
X-Debbugs-Cc: perl at packages.debian.org

This package contains binary Perl modules but doesn't depend on perlapi-*
(currently perlapi-5.24.1).

Quoting the Debian Perl Policy 4.4.2 ("Binary and Other Architecture
Dependent Modules"):

  Additionally, all binary modules (regardless of their installation
  directory) and any other modules installed into $Config{vendorarch} must
  depend on the expansion of perlapi-$Config{debian_abi} using the Config
  module. If $Config{debian_abi} is empty or not set, $Config{version}
  must be used.

This used to work (since #582220) but seems to have regressed recently
with 1:3.3.9-1 that switched to dh-style debian/rules, dropping the
'dh_perl -a usr/lib/amanda/perl' call. The default dh behaviour doesn't
know where to look for the private directory (which currently seems to
be /usr/lib/<triplet>/amanda/perl). Possibly something like

override_dh_perl:
	dh_perl /usr/lib/*/amanda/perl

will do the trick.

Note that this is the root cause for #839603 / #839392: if the package had
had the correct dependencies, it would have been automatically binNMU'd
by the release team along with the other 600+ packages during the Perl
5.24 transition.

Even when this is fixed, partial upgrades of amanda-common from 1:3.3.9-1
without upgrading perl will be a problem, particularly as Ubuntu has
made a release with something based on 1:3.3.9-1. It looks like we need
to add a Breaks on the perl side to make sure broken combinations can't
happen.
-- 
Niko Tyni   ntyni at debian.org