[Buildroot] [PATCH v3 1/2] package/linux-backports: fix kernel version check

[Petr Vorel]

Hi Julien,

> The commit 05fea6e4a60a38a797d9bacbf318a2cd7dbd435f "infra/pkg-kconfig:
> do not rely on package's .config as a timestamp" broke the kernel
> version check of this linux-backports package (it was no longer
> executed). Since linux-4.19, the kernel's build system internally
> touches its .config file, so it can no longer be used as a stamp file.
> The stamp file defined in KCONFIG_STAMP_DOTCONFIG variable of
> pkg-kconfig infra need to be used instead.

> This commit fixes the kernel version check.
Reviewed-by: Petr Vorel <petr.vorel at gmail.com>
Tested-by: Petr Vorel <petr.vorel at gmail.com>

Kind regards,
Petr