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From: Pete Gavin <pete@gentoo.org>
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Subject: [gentoo-dev] ebuild remerge
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Date: Sun Feb 11 12:59:01 2001
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Hi,

I was thinking, suppose you decided to remerge gcc, and the version
you already had installed had all the platform dependent stuff in
/usr/lib/gcc-lib/i486-pc-linux-gnu, but when you recompile it, it
wants to put everything in /usr/lib/gcc-lib/i686-pc-linux-gnu. This
means that if you do ebuild remerge, you'll still have stuff hanging
around in /usr/lib/gcc-lib/i486-pc-linux-gnu. I think the best way to
avoid this would be to make it so a remerge saves the old contents
list and then does a safe unmerge on it after merging the new one. I
can't think of a pretty way to do this, tho... Do you have any ideas?

Pete