Re: building a specific in-tree module is currently a bit broken

[Robert P. J. Day]

On Wed, 5 Sep 2007, Jan Engelhardt wrote:

>
> On Sep 5 2007 11:37, Michal Piotrowski wrote:
> >
> >Hi,
> >
> >[Adding K{build,config} wizards to CC]
> >
> >On 05/09/07, Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote:
> >>
> >> $ make distclean
> >> $ make defconfig
> >> $ make menuconfig      (select visor.ko to be built a module)
> >> $ make drivers/usb/serial/visor.ko
>
> Beep. Need 'make scripts prepare' between menuconfig and visor.

that doesn't solve the problem.  i should have mentioned that i
already (unnecessarily, i suggest) ran "make modules_prepare", but the
problem persists.

the issue seems to be that running that last make command to build the
module visor.ko doesn't somehow signal the Makefile that this is a
*module* build, and therefore no module-related initialization is
done, such as creating that directory or setting the Makefile variable
MODVERDIR, etc, etc.

once you've build at least one module successfully, then the directory
.tmp_versions exists so future module builds will work fine.  it's
only when you do a clean, *immediately* followed by trying to do an
in-tree module build, that this is going to bite you.

rday

-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
========================================================================
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