[Buildroot] [PATCH] glibc: add version 2.24

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Hello,

On Fri, 5 Aug 2016 09:59:27 +0100, Vicente Olivert Riera wrote:
> Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
> ---
>  package/glibc/Config.in  | 6 ++++++
>  package/glibc/glibc.hash | 1 +
>  2 files changed, 7 insertions(+)
> 
> diff --git a/package/glibc/Config.in b/package/glibc/Config.in
> index f86822d..a9a6cc7 100644
> --- a/package/glibc/Config.in
> +++ b/package/glibc/Config.in
> @@ -22,6 +22,11 @@ config BR2_GLIBC_VERSION_2_23
>  	# No support for pthread barriers on < v9 ISA
>  	depends on !BR2_sparc
>  
> +config BR2_GLIBC_VERSION_2_24
> +	bool "2.24"
> +	# No support for pthread barriers on < v9 ISA
> +	depends on !BR2_sparc

One thing important I notice in the release announcement of 2.24 is:

* The minimum Linux kernel version that this version of the GNU C Library
  can be used with is 3.2, except on i[4567]86 and x86_64, where Linux
  kernel version 2.6.32 or later suffices (on architectures that already
  required kernel versions more recent than 3.2, those requirements remain
  unchanged).  Linux 3.2 or later kernel headers are required on all
  architectures.

It is not written completely clearly: they first say that on
x86/x86-64, 2.6.32 is sufficient, but they conclude that 3.2 is the
minimum version on all architectures. It would be good to clarify this
aspect.

Regardless of this detail, this means we will have to encode this
dependency somehow. Indeed, we still have people using kernels older
than 3.2 I believe on various platforms.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com