[gentoo-user] Q on portage's rational to re-emerge packages

[Helmut Jarausch]

Hi,
would anybody please be so kind to explain to me the rational used by  
portage to re-emerge
some packages.
I've installed portage 2.2.7 and when I try to emerge, say,    
app-shells/zsh-completions
it re-emerges (emerge -vp shows  'rR') several packages including,  
i.e., app-office/libreoffice

I can't imaging libreoffice depends in any way on zsh-completions.

So, what's going on?

(and rebuilding libreoffice isn't just fun)

Many thanks,
Helmut.