Date: Thu, 13 Jan 2000 02:44:38 -0800 (PST) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: asmodai@wxs.nl (Jeroen Ruigrok/Asmodai) Cc: billf@chc-chimes.com (Bill Fumerola), marcel@FreeBSD.org (Marcel Moolenaar), cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src Makefile.inc1 Message-ID: <200001131044.CAA31760@gndrsh.dnsmgr.net> In-Reply-To: <20000113111542.P26217@daemon.ninth-circle.org> from Jeroen Ruigrok/Asmodai at "Jan 13, 2000 11:15:42 am"
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> -On [20000113 08:01], Bill Fumerola (billf@chc-chimes.com) wrote: > >On Wed, 12 Jan 2000, Marcel Moolenaar wrote: > > > >> Add gross hack to work around bogus dependency information created > >> by gnu/usr.bin/cc/cc_tools/Makefile. This bug is painfully visible > >> when making buildworld with -DNOCLEAN. This work around is beyond > >> dirty... > > > >It's important to note (if this is the same error I've been experiencing) > >that this only breaks with -DNOCLEAN _and_ a half populated /usr/obj. > > > >An empty /usr/obj with -DNOCLEAN works fine. > > *boggle* With all due respect, but what is the use of -DNOCLEAN when > /usr/obj is empty? =) It prevents a whole tree traversal running ``make clean'' in each and every source directory saving your valuable time while waiting for a make world regression test to run before you commit your latest set of changes. > The purpose of -DNOCLEAN is to reuse an X populated /usr/obj because you > interrupted the make process and want to resume it without starting > again from scratch. There is more than one purpose to it, and your purpose was actually the secondary one when I wrote it. The first one was my above stated one, realize it was the 486 days when it was written and even the fastest boxes at the time had make world times of 6 hours, -DNOCLEAN cut 20 minutes off of that! It's only worth a minute or so today on really fast disks, but still about 3 to 7 on modern IDE, with modern machine buildworld on the 1 hour order that can be a 10% speed up. For those of use who like everybit of concurency and the fastest make world possible I use this: cd /usr/src; mv /usr/obj/src /usr/obj/x; rm -rf /usr/obj/x/tmp/ || \ chflags -R noschg /usr/obj/x/tmp rm -rf /usr/obj/x/tmp & # Yes, run that in the background make -DNOCLEAN world # No need to clean, I just did it for you # in the fastest way possible And if I am in a real hurry I just at(1) the removal of the old /usr/obj/x, since the rm competes with the make world and I have enough space to hold 10 or 20 old obj trees around on my test box that does most of this type work. > > Or I must be misunderstanding you here. It happens. =) Just not looking for all the uses a knob has.... like a door knob, you can use it to hang your coat on, but it has other uses too :-) -- Rod Grimes - KD7CAX @ CN85sl - (RWG25) rgrimes@gndrsh.dnsmgr.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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