[gentoo-user] What to expect from emerge --newuse --emptytree world re: etc-update

I'm getting ready to dive into the apache2 install on my server.
In preparation for this I needed things I wasn't using before like
IMAP (see thread on web mail systems), MySQL, and ldap.

Being the good little gentoo boy I updated my USE flags to include
these and other settings that I plan to use but didn't have in before.

And since my USE flags changed, I'm in the middle of doing the
"emerge --newuse --emptytree world" (it's actually going quite well;
out of 417 packages, only scotty failed due to some sandbox violations
that I'm not worried about right now).

I've got about 10 hours left on the recompiles (estimated), so tomorrow
morning the next step will be to handle any /etc updates.

But that's got me wondering - am I going to be looking at hundreds
of /etc updates?

If I am, I'm certain I don't need them as my existing configs are
all working fine.

So if I am looking at hundreds of /etc updates that I don't really
want to have to wade through, what would be the easiest way to purge
them all?

Thanks in advance,

Dave

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