Re: "/sys/conf/kmod.mk",

On Tue, Apr 17, 2012 at 11:49:44AM +0200, Dimitry Andric wrote:
> On 2012-04-17 11:36, Anton Shterenlikht wrote:
> >On Tue, Apr 17, 2012 at 11:18:29AM +0200, Dimitry Andric wrote:
> ...
> >>That said, i think it may be time to bow to the pressure, and just put a
> >>fixup for this issue in kmod.mk, and the other .mk files, like I
> >>initially did in r232473, but with a BIG FAT WARNING printed, so you at
> >>least know you are attempting to shoot your extremities. :)
> >
> >No, I wouldn't want that.
> >It's just that I thought the ports system
> >never uses anything from /usr/src.
> 
> Well, only the ports that build kernel modules need it, as far as I
> know.  This is because in FreeBSD we do not install the 'full' kernel
> headers anywhere during installworld.
> 
> Maybe we could adopt the Linux solution and dump them somewhere in a
> versioned directory. :)
> 
> 
> >Perhaps the ports which do use /sys should
> >print a warning to the user. Something like
> >"before building this port, make sure your
> >installed world version matches the version
> >of your FreeBSD sources."
> >
> >By the way, what would happen if I try
> >to build those ports with no /sys at all?
> 
> It would hopefully error out.  If you look in /usr/share/mk/bsd.kmod.mk,
> you will see this at the bottom:
> 
>   .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \
>       !exists(${SYSDIR}/conf/kmod.mk)
>   .error Unable to locate the kernel source tree. Set SYSDIR to override.
>   .endif
> 
> So, setting SYSDIR to the correct directory is also a possible solution.

Ah.. I get it now.
So the ports that build kernel modules
invoke /usr/share/mk/bsd.kmod.mk, right?

So how about adding a warning to the user
(that /sys version must match the
installed world version) at the beginning
of this file?

Who maintains this file, @ports or @head?

-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
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