[Buildroot] [PATCH 1/1] libv4l: needs kernel headers >= 3.18

[Peter Seiderer <ps.report@gmx.net>]

Hello Fabrice,

On Fri,  2 Nov 2018 14:35:21 +0100, Fabrice Fontaine <fontaine.fabrice@gmail.com> wrote:

> Bump to version 1.16.1 added a dependency to bpf headers:
> https://git.linuxtv.org/v4l-utils.git/commit/?id=d6025b0e8c7f57b0f9390f987acc5eed57360d80
> 
> BPF headers are available since kernel 3.18:
> https://github.com/torvalds/linux/commit/c15952dc18d8a293d976ac6c06d44d9d98023b45
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/d22c0939eed4bc949f7eaeae7595d01ec45cc2cd
> 

Thanks for taking care of the autobuild failure, but....

To be exact, only utils/keytable depend on the (new) linux kernel bpf header, so
it would be sufficient for only v4l-utils to depend on headers >= 3.18 (or split
v4l-utils into the single utils with different dependencies)?

Or: the commit d6025b0e8c7f57b0f9390f987acc5eed57360d80 adds already a copy
of the linux/bpf.h header, maybe only the dependent linux/bpf_common.h file is
missing?

Regards,
Peter

> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  package/libv4l/Config.in   | 2 +-
>  package/v4l2grab/Config.in | 2 +-
>  package/zbar/Config.in     | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/package/libv4l/Config.in b/package/libv4l/Config.in
> index 57ddde1dfb..84844349a4 100644
> --- a/package/libv4l/Config.in
> +++ b/package/libv4l/Config.in
> @@ -2,7 +2,7 @@ config BR2_PACKAGE_LIBV4L
>  	bool "libv4l"
>  	depends on BR2_TOOLCHAIN_HAS_THREADS
>  	depends on BR2_INSTALL_LIBSTDCPP
> -	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 # media headers
> +	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 # bpf headers
>  	select BR2_PACKAGE_ARGP_STANDALONE if BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_MUSL
>  	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
>  	help
> diff --git a/package/v4l2grab/Config.in b/package/v4l2grab/Config.in
> index ec3a7a8c54..e25b1618e8 100644
> --- a/package/v4l2grab/Config.in
> +++ b/package/v4l2grab/Config.in
> @@ -4,7 +4,7 @@ config BR2_PACKAGE_V4L2GRAB
>  	depends on BR2_USE_MMU # libv4l
>  	depends on !BR2_STATIC_LIBS # libv4l
>  	depends on BR2_INSTALL_LIBSTDCPP # libv4l
> -	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 # libv4l
> +	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 # libv4l
>  	select BR2_PACKAGE_JPEG
>  	select BR2_PACKAGE_LIBV4L
>  	help
> diff --git a/package/zbar/Config.in b/package/zbar/Config.in
> index 05c9b769ce..1d8f1be7cf 100644
> --- a/package/zbar/Config.in
> +++ b/package/zbar/Config.in
> @@ -3,7 +3,7 @@ config BR2_PACKAGE_ZBAR
>  	depends on BR2_TOOLCHAIN_HAS_THREADS # libv4l
>  	depends on BR2_USE_MMU # libv4l
>  	depends on BR2_INSTALL_LIBSTDCPP # libv4l
> -	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 # libv4l
> +	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18 # libv4l
>  	select BR2_PACKAGE_JPEG
>  	select BR2_PACKAGE_LIBV4L
>  	help