[OE-core] Machine specific sysroot issue

[Richard Purdie]

On Mon, 2011-08-15 at 16:49 +0100, Paul Eggleton wrote:
> On Monday 15 August 2011 16:03:44 Phil Blundell wrote:
> > I can't immediately think why this should be behaving differently to any
> > other library (eglibc for example).  It's quite normal for those
> > packages to be architecture-specific and not machine-specific.
> > 
> > What I think is meant to happen when you change MACHINE is that
> > populate_sysroot will rerun (because ${MACHINE} is factored into the
> > stamp for that task) but it will use all the previously cached build
> > artifacts from sstate and hence you won't end up having to rebuild
> > everything.  It sounds as if that isn't happening in this case for some
> > reason, though I can't immediately think what libopie2 might be doing to
> > defeat it.
> > 
> > Is it just include.pro that goes wrong, or does the whole of libopie2 go
> > missing from the sysroot when you change MACHINE?
> 
> Actually it's just include.pro - everything else gets copied to the sysroot 
> for the new machine just fine.
> 
> I've sort of figured this out. include.pro is getting installed to the sysroot  
> and not ${D} in do_install (and it's the only file handled this way). I'm 
> guessing that because of this it never gets picked up by sstate.

This is the problem. You want to install the file into ${D} and then all
should be well...

Cheers,

Richard