Date: Mon, 21 Jul 2003 11:25:57 -0700 From: Marcel Moolenaar <marcel@xcllnt.net> To: Tim Kientzle <kientzle@acm.org> Cc: current@freebsd.org Subject: Re: Buildworld fails in 5.1 Message-ID: <20030721182557.GA599@dhcp01.pn.xcllnt.net> In-Reply-To: <3F1C18CB.6030201@acm.org> References: <20030716181354.GA44980@dan.emsphone.com> <20030717074756.B17029@gamplex.bde.org> <20030717123524.T24327@schnell.net> <20030718154832.K21942@gamplex.bde.org> <20030718095946.H29869@schnell.net> <3F183EF9.7020506@acm.org> <20030721084750.GH12996@roark.gnf.org> <3F1C1695.30409@acm.org> <20030721163719.GI12996@roark.gnf.org> <3F1C18CB.6030201@acm.org>
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On Mon, Jul 21, 2003 at 09:46:03AM -0700, Tim Kientzle wrote: > > I would argue "the problem with make"... ;-) I think it's pretty > clear that > > a b c: foo > buildabc > > does not require that 'buildabc' be run three times. It's a common perception and one that's wrong. a b c: d foo is a shorthand for a: d foo b: d foo c: d foo Since most make variants only look at the timestamp one can avoid building a, b, and c thrice by enforcing an ordering. Make variants like clearmake may not be tricked that easily, because they keep track of much more. -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
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