Presumably as a result of http://git.openembedded.org/openembedded-core/commit/?id=f44f12af346888bdeb3ae01a275cb5dd4396b505 , we now see a warning that the stamp file is missing on the first build. Not a showstopper by any means, but I think we'd prefer not to see it.
Patch in review: http://lists.openembedded.org/pipermail/openembedded-core/2016-March/119124.html
A new version of the patch, with code comment corrected: http://lists.openembedded.org/pipermail/openembedded-core/2016-March/119158.html
Fix merged in: http://git.openembedded.org/openembedded-core/commit/?id=f5031fb37ceef83c85f0dfec773da75c05b2a631