[oe] [OE-core] [RFC] Layers, PRINC and bbappends

[Martin Jansa]

On Wed, May 22, 2013 at 09:47:39AM +0100, Paul Barker wrote:
> On 16 May 2013 00:02, Paul Barker <paul at paulbarker.me.uk> wrote:
> > On 15 May 2013 21:33, Richard Purdie <richard.purdie at linuxfoundation.org> wrote:
> >
> >>
> >> (e.g. when I include
> >> meta-raspberrypi, it changes the psplash logo, regardless of whether I'm
> >> building for the pi).
> >>
> >> In many ways the bbappend is too easy and encourages anti-social
> >> behaviour. I would recommend bouncing meta-rpi as being non yocto
> >> project compatible due to the psplash issue if it were to apply which it
> >> has not.
> >>
> >
> > I noticed the psplash logo when building a qemu image with
> > meta-raspberrypi included, will look into fixing it so it only goes
> > into MACHINE="raspberrypi" builds. Copying in yocto@ and Andrei as
> > this is raspberrypi related.
> >
> 
> I've just sent a patch to the yocto@ list to fix this but it's brought
> up two things:
> 
> 1) In openembedded-core/meta/classes/image.bbclass SPLASH is set with
> '?='. I'm overriding this with '=' in
> meta-raspberrypi/conf/machine/raspberrypi.conf which means it can't be
> overridden further in local.conf. Is this worth changing to '??=' in
> image.bbclass, '?=' in the machine conf so that it can be overridden
> with '=' in local.conf? Is my understanding of the overrides correct
> here?

You can still use:
SPLASH_forcevariable = "foo"
SPLASH_your-distro = "foo"
SPLASH_your-machine = "foo"
or any other OVERRIDE in local.conf.

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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