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Date: Tue, 5 Jul 2011 22:10:32 -0500
From: Barry Schwartz <chemoelectric@chemoelectric.org>
To: gentoo-amd64@lists.gentoo.org
Subject: Re: [gentoo-amd64] Glibc Update Breaks Open/LibreOffice -- Can't
 Downgrade
Message-ID: <20110706031032.GA8466@crud>
References: <20110705213148.ca51f2ac.frank.peters@comcast.net>
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Frank Peters <frank.peters@comcast.net> skribis:
>  * Sanity check to keep you from breaking your system:
>  *  Downgrading glibc is not supported and a sure way to destruction
>  * ERROR: sys-libs/glibc-2.13-r2 failed (setup phase):
>  *   aborting to save your system
> 
> I'm not going to break my system.  How do I override this?

Copy or overlay the one glibc ebuild with a copy of the good one. It
is hard to tell which ebuilds you mean, but I think the difference may
be just the patch set.