libreoffice-gtk2 pulled in by default and should not be

[Steve Langasek]

With the introduction of libreoffice-gtk2, we now have a dependency chain of:

ubuntu-desktop -> libreoffice-gnome -> libreoffice-gtk -> libreoffice-gtk2 -> libgtk2.0-0

I think the bug here is that libreoffice-gnome should depend on libreoffice-gtk3 instead of on libreoffice-gtk? Either way, now that a libreoffice-gtk3 package exists, we should surely be using that instead of pulling gtk2 into the desktop.

I noticed this because components-mismatches reports that libreoffice-style-elementary should be pulled into main as a dependency of libreoffice-style-breeze, which is itself only in main because it's a dependency of libreoffice-gtk2. And this reveals another bug, because libreoffice-style-breeze depends on 'libreoffice-style-default' - but there are three packages providing this virtual package in yakkety: libreoffice-style-human, libreoffice-style-elementary, and libreoffice-style-galaxy. They can't all be the default, only one of these should be providing that virtual package...

[Björn Michaelsen (bjoern-michaelsen)]

https://git.launchpad.net/~libreoffice/ubuntu/+source/libreoffice/commit/?h=ubuntu-yakkety-5.2&id=85abee54a54d962e7f25ee1ee07f9ae3d4ecd807