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From: John Nielsen <lists@jnielsen.net>
To: freebsd-questions@freebsd.org, Daniel Gerzo <danger@freebsd.org>
Date: Mon, 3 Mar 2008 12:45:31 -0500
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Cc: "B. Cook" <bcook@poughkeepsieschools.org>
Subject: Re: looks like success
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On Sunday 02 March 2008 03:50:43 am Daniel Gerzo wrote:
> Hello B.,
>
> Thursday, February 28, 2008, 9:27:03 PM, you wrote:
> > Hello all,
> >
> > make delete-old (took a long time to do by hand)
> > and make delete-old-libs (went rather quickly)
>
> if you really want to delete all things:
>
> # yes | make delete-old

While I've seen this suggestion before (and it's a very unix-y way to do 
it), the "canonical" method (from build(7)) is to run
 make -DBATCH_DELETE_OLD_FILES delete-old

What I'd like to see (although I realize this isn't the correct forum..) 
is a make target that produces a list of files that _would_ be deleted, 
which the admin could then review and approve all or remove individual 
files to be preserved. But until I turn this into a useful PR or a nice 
request on a different list just consider it a rant. :)

JN