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From: "Thompson, David" <dthompson2@worcester.edu>
Subject: =?UTF-8?B?UmU6IE5ldyDigJhndWl4IGdyYXBo4oCZIGNvbW1hbmQ=?=
Date: Thu, 27 Aug 2015 17:01:12 -0400
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To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Cc: Guix-devel <Guix-devel@gnu.org>

On Thu, Aug 27, 2015 at 4:55 PM, Ludovic Court=C3=A8s <ludo@gnu.org> wrote:
> "Thompson, David" <dthompson2@worcester.edu> skribis:
>
>> Just one question: I see that when using the 'references' type, each
>> node in the graph has an arrow pointing to itself.  Is that
>> intentional?
>
> It=E2=80=99s not really =E2=80=9Ceach node=E2=80=9D but rather =E2=80=9Cm=
ost nodes.=E2=80=9D  :-)
>
> The daemon keeps track of all the references of each item, including
> self-references.  And it turns out that most packages record their
> $prefix in their binaries, for instance, hence the self-reference.  This
> can be seen with =E2=80=98guix gc --references=E2=80=99 as well.

That makes sense. Thanks for the explanation!

- Dave