[1/2] meson: Fix building with -Dv4l-utils=false

ir_bpf_enabled was referenced without being defined.
---
 meson.build | 2 ++
 1 file changed, 2 insertions(+)

On Tue, 12 Dec 2023 15:24:05 +0000, James Le Cuirot <chewi@gentoo.org> wrote:

> ir_bpf_enabled was referenced without being defined.
> ---
>  meson.build | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/meson.build b/meson.build
> index 03508bc8..d9689d35 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -382,6 +382,8 @@ subdir('lib')
>  if get_option('v4l-utils')
>      subdir('utils')
>      subdir('contrib')
> +else
> +    ir_bpf_enabled = false
>  endif
>
>  subdir('doc')

Can confirm the following error/failure without the patch (using
buildroot where v4l-utils is known as libv4l package)

  .../libv4l-1.26.0/meson.build:406:32: ERROR: Unknown variable "ir_bpf_enabled".

and no error with the patch applied, so you can add my

Tested-by: Peter Seiderer <ps.report@gmx.net>

Regards,
Peter