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Date: Mon, 21 Aug 2006 11:11:57 -0400
From: Willie Wong <wwong@Princeton.EDU>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Packages being Re-emerged after portage update
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On Mon, Aug 21, 2006 at 03:51:47PM +0200, Penguin Lover Alan Mckinnon squawked:
> On Mon, 2006-08-21 at 13:21 +0100, Graham Murray wrote:
> > Following a portage update/sync and running 'emerge -auDvN world',
> > packages sometimes show with 'R' but without any yellow or % USE flags
> > shown. I assume that this is because a USE flag has been removed from
> > either the ebuild or an eclass used by the ebuild. If this is correct,
> > it would be nice if it was to show which USE flag(s) are no longer
> > used. 
> 
> Now there's an idea, why didn't I think of that? Submit it as a feature
> request, I'll give you a "me too!" vote

That would be a neat idea. But I don't think that's what the OP
described. Packages shown with R implies it is being re-compiled.
yellow or % USE flags are new ones. If you have already installed the
package once, the USE flags cannot be new ;)

I would think that if IUSE changed in an ebuild, that would warrant a
version bump, but I don't know the dev's policy on that. 

Most likely those packages are being re-merged because of a changed
USE flag on your configuration: does it have something green or
followed by *? That means a USE flag that changed since the last
install.

HTH,

W
-- 
"Fortunately, this is where we stop, for the equations of motion are 2nd order. 
If it were 5th order you'd all probably switch to biology."
~DeathMech, S. Sondhi. P-town PHY 205
Sortir en Pantoufles: up 1 day, 20:03
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