[Users] Some claws mail questions.

[Ivan Krylov]

Dear Rolf,

On Fri, 14 Aug 2020 13:18:08 +1200
Rolf Turner <r.turner at auckland.ac.nz> wrote:

> dpkg: dependency problems prevent configuration of
> claws-mail-dillo-viewer:amd64: claws-mail-dillo-viewer:amd64 depends
> on claws-mail (= 3.17.4-1); however: Version of claws-mail on system
> is 3.16.0-1.

The Dillo plugin does not seem to be available in Ubuntu 18.04:

https://packages.ubuntu.com/search?keywords=claws&searchon=names&suite=bionic&section=all

Despite the plugin having been re-introduced [1] months before the
3.16.0 release [2] included in Ubuntu 18.04, it only appears [3] in
Ubuntu 19.10 and upwards:

https://packages.ubuntu.com/search?keywords=claws-mail-dillo-viewer&searchon=names&suite=all&section=all

There are multiple options to consider from there, including building
Claws from source (sudo apt build-dep claws-mail should help prepare
for that), backporting the newer package [4], and carefully pulling the
new version of Claws from 19.10 [5] hopefully without breaking the
system. All the options are admittedly painful, alas.

-- 
Best regards,
Ivan

[1]
https://git.claws-mail.org/?p=claws.git;a=commitdiff;h=1e068dbfc2837809030dcbf0173d2841a411d95a

[2]
https://git.claws-mail.org/?p=claws.git;a=commit;h=39bc9beb6a0772d71b291d50c6fe238c241e4741

[3]
https://salsa.debian.org/claws-mail-team/claws-mail/-/commit/52c1b7a790d9385a8193ac676b2b4d6ce58f61c8

[4] Sometimes it's even possible to build a newer source package on an
older system without any changes:

sudo apt build-dep claws-mail
dget \
 http://archive.ubuntu.com/ubuntu/pool/universe/c/claws-mail/claws-mail_3.17.4-1.dsc
cd claws-mail-*
dpkg-buildpackage -uc -us
sudo dpkg -i ../claws-foo.deb ../claws-bar.deb

[5] https://jaqque.sbih.org/kplug/apt-pinning.html