Re: [multiarch] easy fix for interarchitectural package conflict?

[Tom Roche <Tom_Roche@pobox.com>]

https://lists.debian.org/debian-user/2014/05/msg00291.html [Tom Roche Sun, 04 May 2014 16:04:30 -0400]
>> me@it ~ $ inxi -r
>> Repos: Active apt sources in file: /etc/apt/sources.list.d/google-chrome.list
>>        deb http://dl.google.com/linux/chrome/deb/ stable main
>>        Active apt sources in file: /etc/apt/sources.list.d/official-package-repositories.list
>>        deb http://packages.linuxmint.com debian main upstream import
>>        deb http://debian.linuxmint.com/latest/ testing main contrib non-free
>>        deb http://debian.linuxmint.com/latest/security testing/updates main contrib non-free
>>        deb http://debian.linuxmint.com/latest/multimedia testing main non-free
>>        deb http://extra.linuxmint.com debian main

>> me@it ~ $ sudo aptitude -s install icedtea-7-plugin:i386
...
>> The following packages have unmet dependencies:
>>  libgif4 : Conflicts: libgif4:i386 but 4.1.6-10 is to be installed.
>>  libgif4:i386 : Conflicts: libgif4 but 4.1.6-10 is installed.

https://lists.debian.org/debian-user/2014/05/msg00294.html [Sven Joachim Sun, 04 May 2014 22:21:45 +0200]
> [you have an] older version of libgif4 than the one in jessie/sid[,
> since] Multiarch support was enabled in 4.1.6-11 back in December 2013.

So how to get a multiarch version of libgif4? My guess is, the sequence

1. add a repository
2. update packages
3. update package=libgif4:i386
4. install package=icedtea-7-plugin:i386
5. remove repository

... is that correct? If so, which repo to add? My guess is

deb http://ftp.debian.org/debian/ testing main contrib non-free

No?

TIA, Tom Roche <Tom_Roche@pobox.com>