On Thu, Jan 24, 2013 at 04:16:45PM +0800, Qi.Chen@windriver.com wrote:
> From: Chen Qi <Qi.Chen@windriver.com>
> 
> All recipes that need to tweak their directories need to inherit this
> class and set VOLATILE_DIR, VOLATILE_LINK and VOLATILE_PKGS.
> 
> [YOCTO #3406]
> 
> Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
> ---
>  meta/classes/volatiles.bbclass |   11 +++++++++++
>  1 file changed, 11 insertions(+)
>  create mode 100644 meta/classes/volatiles.bbclass
> 
> diff --git a/meta/classes/volatiles.bbclass b/meta/classes/volatiles.bbclass
> new file mode 100644
> index 0000000..f27e598
> --- /dev/null
> +++ b/meta/classes/volatiles.bbclass
> @@ -0,0 +1,11 @@
> +# This bbclass is for read-only-rootfs support. All recipes that may tweak their
> +# own directories in order to run correctly in a read-only rootfs enviroment
> +# should inherit this class and set VOLATILE_DIR, VOLATILE_LINK, VOLATILE_PKGS.
> +
> +# For each package, the net result is a read-only specific conf file generated
> +# and packaged, which has the name of readonly-${VOLATILESPN}.
> +
> +# All these config files are then parsed by populate-volatile.sh to create proper
> +# directories and links.
> +
> +inherit ${@base_contains('DISTRO_FEATURES','sysvinit','volatiles_sysvinit','',d)}

Does "inherit " work?

I mean empty inherit when DISTRO_FEATURES don't contain sysvinit? IIRC
it will fail to parse.

Cheers,

> -- 
> 1.7.9.5
> 
> 
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-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa@gmail.com