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Date:      Tue, 13 Dec 2016 01:20:26 +0100
From:      "Herbert J. Skuhra" <herbert@mailbox.org>
To:        freebsd-stable@freebsd.org
Subject:   Re: make buildkernel does not respect KERNCONF or JOBS in /etc/make.conf
Message-ID:  <86pokwptmd.wl-herbert@mailbox.org>
In-Reply-To: <CAN6yY1sQOtkONb0fdSr_1p2LpV=UsqqvnzxO_GnRO%2BdueC4DOg@mail.gmail.com>
References:  <201612120138.uBC1cA59025994@sdf.org> <86r35dd46x.wl-herbert@mailbox.org> <9B.7B.16304.3F86E485@dnvrco-omsmta02> <15672f53-1a34-3120-0aa8-03aa6401be54@zyxst.net> <CAN6yY1sQOtkONb0fdSr_1p2LpV=UsqqvnzxO_GnRO%2BdueC4DOg@mail.gmail.com>

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Kevin Oberman skrev:
>
> Clearly the documentation is a bit behind the times. For some time pe=
ople
> have used KERNCONF to build multiple kernels, but that was a lucky th=
ings
> that was not officially supported. It just happened to work. Then, wi=
th
> 11.0, it no longer did in many cases sue to changes in the kernel bui=
ld
> system. When people complained, there did not seem to be a way to fix=
 this
> without blocking future goals in speeding up and enhancinghte standar=
d
> kernel build.
> =

> The result was BUILDKERNELS. It was specifically designed to allow th=
e
> building of multiple kernels and the appropriate modules. This would =
always
> take longer and use more disk space, but it would work reliably. Now,=
 bit
> building a single, local kernel, KERNCONF is the best way, though I s=
uspect
> that it make only a small difference until new capabilities are added=
 later
> in the life of 11.
> =

> So, while it seems the man pages need to catch up, building multiple
> kernels should be done with KERNCONF in either make.conf or src.conf =
and
> multiple kernels with BUILDKERNELS.
> =

> This is from my recollection of the discussion thread. I'll admit to =
being
> too lazy to go find and read all of it. I suspect it was on current@,=
 but
> I'm not even sure of that.

???

From=20/usr/src/Makefile.inc1:

   1137 .if ${TARGET_ARCH} =3D=3D "powerpc64"
   1138 KERNCONF?=3D      GENERIC64
   1139 .else
   1140 KERNCONF?=3D      GENERIC
   1141 .endif
   [...]
   1149 BUILDKERNELS=3D
   1150 INSTALLKERNEL=3D
   1151 .if defined(NO_INSTALLKERNEL)
   1152 # All of the BUILDKERNELS loops start at index 1.
   1153 BUILDKERNELS+=3D dummy
   1154 .endif
   1155 .for _kernel in ${KERNCONF}
   1156 .if exists(${KERNCONFDIR}/${_kernel})
   1157 BUILDKERNELS+=3D  ${_kernel}
   1158 .if empty(INSTALLKERNEL) && !defined(NO_INSTALLKERNEL)
   1159 INSTALLKERNEL=3D ${_kernel}
   1160 .endif
   1161 .endif
   1162 .endfor

So setting BUILDKERNELS has no effect.

-- =

Herbert



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