def do_qa_unpack(d): src_uri = d.getVar('SRC_URI') s_dir = d.getVar('S') if src_uri and not os.path.exists(s_dir): bb.warn('%s: the directory %s (%s) pointed to by the S variable doesn\'t exist - please set S within the recipe to point to where the source has been unpacked to' % (d.getVar('PN'), d.getVar('S', False), s_dir)) do_qa_unpack(d)