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To: gentoo-dev@g.o
From: Ralph Sennhauser <sera@g.o>
Subject: Re: ewarn and package upgrades
Date: Sat, 23 Jun 2012 13:59:15 +0200
On Sat, 23 Jun 2012 07:40:02 -0400
Rich Freeman <rich0@g.o> wrote:

> On Sat, Jun 23, 2012 at 7:32 AM,  <portage@localhost> wrote:
> > WARN: postinst
> > Please rebuild both libxcb and xcb-util if you are upgrading from
> > version 1.6
> >
> 
> I've read enough warnings like this (many packages use them) that it
> occurred to me that perhaps there should be some better way of dealing
> with this.
> 
> I realize we have a huge discussion going on about suggested depends
> and such which could resolve it long-term.  If that really doesn't
> work out, then perhaps at least it would be useful if it were obvious
> in ELOG messages what the old and new version were, or some other
> stopgap measure.  Bonus points if the ebuild can figure it out and
> only generate the warning conditionally, but I'd be happy if I could
> just delete the message without having to figure out what version I
> was previously running...
> 
> Rich
> 

REPLACING_VERSIONS and REPLACED_BY_VERSION added in EAPI 4 can be used
to do this things with elog messages.


References:
ewarn and package upgrades
-- Rich Freeman
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Updated Jun 29, 2012

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