[Buildroot] [help] v4l2loopback package build fails for raspberrypi5

[Buildroot] [help] v4l2loopback package build fails for raspberrypi5

[Nayab Sayed via buildroot]

Hi there,

I am using latest source on master branch.

I am trying to build the v4l2loopback package after enabling the config 
BR2_PACKAGE_V4L2LOOPBACK_UTILS in menuconfig

    make O=raspberrypi5 raspberrypi5_defconfig

    make O=raspberrypi5 v4l2loopback

When installing to target, I see the following error:

    >>> v4l2loopback 0.13.2 Installing to target
    /usr/bin/install -D -m 0755
    /home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/utils/v4l2loopback-ctl
    /home/nayab/buildroot/raspberrypi5/target/usr/bin/v4l2loopback-ctl
    /usr/bin/install: cannot stat
    '/home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/utils/v4l2loopback-ctl':
    No such file or directory
    make[1]: *** [package/pkg-generic.mk:364:
    /home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/.stamp_target_installed]
    Error 1
    make: *** [Makefile:83: _all] Error 2

In 2025.02-LTS also, I see this behavior. Buildroot is unable to 
generate the file `v4l2loopback-ctl` in the 
build/v4l2loopback-0.13.2/utils/ directory.

But when I go the package build directory and execute `make`, I could 
see the file is generating.

Could somebody help fixing this issue?

Thanks,
Nayab

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot

Re: [Buildroot] [help] v4l2loopback package build fails for raspberrypi5

[Peter Seiderer via buildroot]

Hello Nayab,

On Wed, 26 Mar 2025 14:09:48 +0000, Nayab Sayed via buildroot <buildroot@buildroot.org> wrote:

> Hi there,
>
> I am using latest source on master branch.
>
> I am trying to build the v4l2loopback package after enabling the config
> BR2_PACKAGE_V4L2LOOPBACK_UTILS in menuconfig
>
>     make O=raspberrypi5 raspberrypi5_defconfig
>
>     make O=raspberrypi5 v4l2loopback
>
> When installing to target, I see the following error:
>
>     >>> v4l2loopback 0.13.2 Installing to target
>     /usr/bin/install -D -m 0755
>     /home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/utils/v4l2loopback-ctl
>     /home/nayab/buildroot/raspberrypi5/target/usr/bin/v4l2loopback-ctl
>     /usr/bin/install: cannot stat
>     '/home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/utils/v4l2loopback-ctl':
>     No such file or directory
>     make[1]: *** [package/pkg-generic.mk:364:
>     /home/nayab/buildroot/raspberrypi5/build/v4l2loopback-0.13.2/.stamp_target_installed]
>     Error 1
>     make: *** [Makefile:83: _all] Error 2
>
> In 2025.02-LTS also, I see this behavior. Buildroot is unable to
> generate the file `v4l2loopback-ctl` in the
> build/v4l2loopback-0.13.2/utils/ directory.
>
> But when I go the package build directory and execute `make`, I could
> see the file is generating.
>
> Could somebody help fixing this issue?

See [1] for suggested patch...

Regards,
Peter

[1] https://patchwork.ozlabs.org/project/buildroot/patch/20250327164913.13610-1-ps.report@gmx.net/

>
> Thanks,
> Nayab
>
> _______________________________________________
> buildroot mailing list
> buildroot@buildroot.org
> https://lists.buildroot.org/mailman/listinfo/buildroot

_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot