This layer needs fossup and a working fossology instance. See: 

https://gitlab.com/toganlabs/fossup

For more info on fossup.

How to use this layer
---------------------

This layer requires the archiver.bbclass is inherited. A general
use model would be adding the following to local.conf

CONF_VERSION = "1"
INHERIT += "archiver"
ARCHIVER_MODE[src] = "patched"
ARCHIVER_MODE[diff] = "1"
ARCHIVER_MODE[diff-exclude] ?= ".pc autom4te.cache patches"
ARCHIVER_MODE[dumpdata] = "0"
ARCHIVER_MODE[recipe] = "1"
COPYLEFT_LICENSE_INCLUDE = 'GPL* LGPL* BSD* Apache* Public*'
COPYLEFT_RECIPE_TYPES = 'target'