From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: Reverse dependencies
Date: Sat, 16 Jul 2016 12:13:33 -0400
Message-ID: <20160716161333.GA29212@jasmine>
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To: Vincent Legoll <vincent.legoll@gmail.com>
Cc: help-guix@gnu.org

On Sat, Jul 16, 2016 at 11:58:51AM +0200, Vincent Legoll wrote:
> Hello,
> 
> I'm trying to understand which package(s) depends on some other package,
> kind of the reverse of what guix graph does (I think).

I think that `guix refresh --list-dependent foo` is what you are asking
for, or at least it's close. We use it to learn what will need to be
rebuilt when upgrading foo.