Thanks for the reply.
Right I find myself a little confused because the install for the iWave board is somewhat different to what I have used before.
<manifest>
<default revision="pyro" sync-j="4"/>
<project remote="linaro" name="openembedded/meta-linaro" path="layers/meta-linaro"/>
<project remote="oe" name="meta-handheld" path="layers/meta-handheld"/>
<project remote="github" name="openembedded/bitbake" path="bitbake" revision="1.34"/>
<project remote="github" name="openembedded/openembedded-core" path="layers/openembedded-core"/>
<project remote="github" name="openembedded/meta-openembedded" path="layers/meta-openembedded"/>
<project remote="github" name="shr-distribution/meta-smartphone" path="layers/meta-smartphone"/>
<project remote="github" name="Freescale/meta-freescale-3rdparty" path="layers/meta-freescale-3rdparty"/>
<project remote="github" name="96boards/meta-96boards" path="layers/meta-96boards"/>
<project remote="github" name="koenkooi/meta-dominion" path="layers/meta-dominion"/>
<project remote="github" name="koenkooi/meta-uav" path="layers/meta-uav"/>
<project remote="github" name="koenkooi/meta-photography" path="layers/meta-photography"/>
<project remote="github" name="koenkooi/meta-edison" path="layers/meta-edison"/>
<project remote="github" name="koenkooi/meta-kodi" path="layers/meta-kodi"/>
<project remote="github" name="ndechesne/meta-qcom" path="layers/meta-qcom"/>
<project remote="github" name="linux-sunxi/meta-sunxi" path="layers/meta-sunxi" />
<project remote="github" name="linux4sam/meta-atmel" path="layers/meta-atmel" revision="9deeb0a3ca64c7d8e48e2f861c4d1bffeba24220" upstream="morty"/>
<project remote="github" name="kraj/meta-altera" path="layers/meta-altera" revision="37ca0f7ab398e2e5bc61bd163b0bc16df535160f" upstream="master"/>
<project remote="github" name="kraj/meta-nslu2" path="layers/meta-nslu2" revision="8f35264fe9bb38439ece38c0c324cec792b22a8f" upstream="master"/>
<project remote="github" name="OSSystems/meta-browser" path="layers/meta-browser" revision="6edb45804c5e532fdbca31e9d358d9052eaee90b" upstream="master"/>
<project remote="github" name="meta-qt5/meta-qt5" path="layers/meta-qt5" revision="3ae86cb32edd1449f702e0a094929ae9b21ce191" upstream="master"/>
<project remote="github" name="bmwcarit/meta-ros" path="layers/meta-ros" revision="f591713a1494772882d6b4459c7cb1fa6bc059ba" upstream="master"/>
<project remote="github" name="schnitzeltony/meta-office" path="layers/meta-office" revision="3213948bafb7fae4fa00ce6dc997d1801e870b5e" upstream="master"/>
<project remote="github" name="Angstrom-distribution/meta-angstrom" path="layers/meta-angstrom" revision="angstrom-v2017.06-yocto2.3">
<copyfile dest="setup-environment" src="../../.repo/manifests/setup-environment"/>
</project>
<project remote="yocto" name="meta-freescale" path="layers/meta-freescale"/>
<project remote="yocto" name="meta-intel" path="layers/meta-intel"/>
<project remote="yocto" name="meta-xilinx" path="layers/meta-xilinx"/>
<project remote="yocto" name="meta-mono" path="layers/meta-mono"/>
<project remote="yocto" name="meta-raspberrypi" path="layers/meta-raspberrypi" revision="rocko" />
<project remote="yocto" name="meta-java" path="layers/meta-java"/>
<project remote="yocto" name="meta-maker" path="layers/meta-maker"/>
<project remote="yocto" name="meta-qt4" path="layers/meta-qt4"/>
<project remote="yocto" name="meta-intel-iot-middleware" path="layers/meta-intel-iot-middleware" revision="821cf14c8304669d9ce0c5b87b9be5a6eecff6e5" upstream="master"/>
<project remote="yocto" name="meta-ti" path="layers/meta-ti" revision="e57e6a3c1b9668b0b09d39e03fab7a557c392f81" upstream="master"/>
</manifest>
So the yocto version seems to be pyro.
This Angstrom build is a bit convoluted.
Although I'd expect this to be set to linaro-xx, so I'm not sure.