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Date: Wed, 3 Dec 2014 14:23:07 +0200
From: Laurentiu Palcu <laurentiu.palcu@intel.com>
To: Paul Eggleton <paul.eggleton@linux.intel.com>
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Cc: openembedded-core@lists.openembedded.org
Subject: Re: [RFC] kernel: Enable externalsrc on kernels which instantiate kernel.bbclass
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Hi Paul,

On Wed, Dec 03, 2014 at 12:00:31PM +0000, Paul Eggleton wrote:
> On Monday 22 September 2014 13:04:47 Bruce Ashfield wrote:
> > On 14-09-22 01:03 PM, Khem Raj wrote:
> > > On Mon, Sep 22, 2014 at 8:27 AM, Bruce Ashfield
> > > 
> > > <bruce.ashfield@windriver.com> wrote:
> > >> But the reports we've been getting have been that externalsrc
> > >> builds are working for kernels, and linux-yocto without the change
> > >> in place, so I'm looking to reduce the patch footprint and re-submit.
> > > 
> > > no, it cant work if folks were trying the usecase I have mentioned.
> > > The fix is infact for
> > > non linux-yocto kernels.
> > 
> > I'll send out my updated patch shortly, it should fix both cases.
> 
> Bruce, did you get around to doing this?
> 
> At the moment I am trying to make my workflow tool ("devtool modify") work with 
> linux-yocto. I've at least got to the point where I can extract the 
> appropriate source from the recipe, but when I use externalsrc to point to it 
> and then try to build it, it doesn't even get past do_configure, so something 
> must be missing (make complains about missing targets, presumably because it's 
> running in ${B} and there's nothing in that directory).
> 
> Do you expect linux-yocto + externalsrc to work at the moment in master? If 
> so, are there any special steps I need to do with respect to preparing the 
> external source tree that my tool might not be performing?
FWIW, I'm using externalsrc to build non linux-yocto kernels but, to make it
work, I had to overwrite the KERNEL_CONFIG_COMMAND:

KERNEL_CONFIG_COMMAND = "oe_runmake_call -C ${S} O=${B} oldnoconfig || yes '' | oe_runmake -C ${S} O=${B} oldconfig"

This might be the reason of your do_configure failure...

I hope it helps,
laurentiu