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From: Joao Carlos Mendes Luis <jonny@mailhost.coppe.ufrj.br>
Message-Id: <199704071712.OAA27406@gaia.coppe.ufrj.br>
Subject: Re: make -j3 on make world?
To: scrappy@hub.org (The Hermit Hacker)
Date: Mon, 7 Apr 1997 14:12:05 -0300 (EST)
Cc: current@freebsd.org
In-Reply-To: <Pine.NEB.3.96.970330170741.199A-100000@thelab.hub.org> from The Hermit Hacker at "Mar 30, 97 05:10:15 pm"
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#define quoting(The Hermit Hacker)
// On Sun, 30 Mar 1997, The Hermit Hacker wrote:
// 
// > 
// > Hi...
// > 
// > 	Is there a way of doing a 'make -j3 world'?  I've tried it, and it
// > doesn't seem to work, based on what I observe when doing a 'make -j3' when
// > building the kernel...
// > 
// > 
// > 
// 
// 
// Hi again...
// 
// 	In reply to my own email, I did some playing around last night
// with the /usr/share/mk/* files, bsd.subdir.mk in particular, and came
// up with:
// 
// _SUBDIRUSE: .USE
//         @for entry in ${SUBDIR}; do \
//                 (if test -d ${.CURDIR}/$${entry}.${MACHINE}; then \
//                         ${ECHODIR} "===> ${DIRPRFX}$${entry}.${MACHINE}"; \
//                         edir=$${entry}.${MACHINE}; \
//                         cd ${.CURDIR}/$${edir}; \
//                 else \
//                         ${ECHODIR} "===> ${DIRPRFX}$$entry"; \
//                         edir=$${entry}; \
//                         cd ${.CURDIR}/$${edir}; \
//                 fi; \
//                 ${MAKE} ${MAKEFLAGS} ${.TARGET:realinstall=install} DIRPRFX=${DIRPRFX}$$edir/); \
//         done
// 
// 
// 	The only change is adding ${MAKEFLAGS} to the ${MAKE} line so
// that the -j3 flag carried down into the subdir's, so that make world
// works with parellel make...
// 
// 	Is there any reason that I'm overlooking why this *shouldn't*
// be done this way?  If not, and there are no arguments against it, I'd
// like to make the change a permanent feature...?
// 

Yes.  If this worked you would create 3 copies of make for EACH subdirectory...

					Jonny

--
Joao Carlos Mendes Luis			jonny@gta.ufrj.br
+55 21 290-4698 ( Job )			jonny@cisi.coppe.ufrj.br
Network Manager				UFRJ/COPPE/CISI
Universidade Federal do Rio de Janeiro