poky/meta/classes/multimachine.bbclass

STAMP = "${TMPDIR}/stamps/${MULTIMACH_ARCH}-${HOST_OS}/${PF}"
WORKDIR = "${TMPDIR}/work/${MULTIMACH_ARCH}-${HOST_OS}/${PF}"
STAGING_KERNEL_DIR = "${STAGING_DIR}/${MULTIMACH_ARCH}-${HOST_OS}/kernel"

# Find any machine specific sub packages and if present, mark the 
# whole package as machine specific for multimachine purposes.
python __anonymous () {
	packages = bb.data.getVar('PACKAGES', d, 1).split()
	macharch = bb.data.getVar('MACHINE_ARCH', d, 1)
	multiarch  = bb.data.getVar('PACKAGE_ARCH', d, 1)

	for pkg in packages:
		pkgarch = bb.data.getVar("PACKAGE_ARCH_%s" % pkg, d, 1)

		# We could look for != PACKAGE_ARCH here but how to choose 
		# if multiple differences are present?
		# Look through IPKG_ARCHS for the priority order?
		if pkgarch and pkgarch == macharch:
			multiarch = macharch

	bb.data.setVar('MULTIMACH_ARCH', multiarch, d)
}