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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCH 4/7] gnu: Add spice-gtk.
Date: Mon, 25 Jul 2016 00:14:57 +0200
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	(David Craven's message of "Sun, 24 Jul 2016 13:34:13 +0200")
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To: David Craven <david@craven.ch>
Cc: guix-devel <guix-devel@gnu.org>

David Craven <david@craven.ch> skribis:

> What are valid reasons to propagate inputs?

If an installed .h file of spice-gtk #includes a .h file of a
dependency, that dependency should be a propagated input.  Likewise if
its .pc file =E2=80=9CRequires=E2=80=9D the .pc file of a dependency.

For additional examples, see:

  https://www.gnu.org/software/guix/manual/html_node/package-Reference.html

HTH!

Ludo=E2=80=99.