Re: Static build of kmod

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On Thu, Mar 19, 2020 at 7:40 AM Rolf Eike Beer <eb@xxxxxxxxx> wrote:
>
> Greetings,
>
> since commit b7016153ec87dba2b0f0d182cc8f1e3b12f4dfaf building static kmod is
> disabled. I would like to question that decision.
>
> My use case is as follows: I build a custom BSP and would like to provide
> statically linked host tools. That makes it easy to deploy them at any
> location, and that these tools do not pick up random shared libraries of the
> underlying Linux system when executed. Currently kmod is one of the few
> packages that are not able to build in that way.
>
> I understand that you may want to prevent other tools (e.g. sytemd was
> mentioned in that commit) to link against a static libkmod, and that is fine
> with me. What I would like to get is static kmod tools. For the BSP host tools
> case I don't mind if a libkmod does not exist at all, only the tools are of
> interest.
>
> What do you think?

It's a build system limitation:

./configure -h| grep static
  --enable-static[=PKGS]  build static libraries [default=no]

The --enable-static switch is about building static libraries, and as
a consequence linking the binaries statically.
We don't want libkmod to be built statically because its symbols will
conflict with other libraries
as you mentioned.

If we had a --enable-static-tools switch that made only the tools
static (default false), I think it would be acceptable.

And since you are going to mess with the build system, if you want to
convert kmod to meson it would be very
appreciated :)

thanks
Lucas De Marchi

>
> Regards,
>
> Eike
> --
> Rolf Eike Beer, emlix GmbH, http://www.emlix.com
> Fon +49 551 30664-0, Fax +49 551 30664-11
> Gothaer Platz 3, 37083 Göttingen, Germany
> Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
> Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055
>
> emlix - smart embedded open source



-- 
Lucas De Marchi




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