build: Describe method for downloading GPL codes in build error message
build: Describe method for downloading GPL codes in build error message

shogun-toolbox/shogun,besser82/shogun,shogun-toolbox/shogun,geektoni/shogun,lambday/shogun,besser82/shogun,besser82/shogun,lambday/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,geektoni/shogun,geektoni/shogun,lambday/shogun,shogun-toolbox/shogun,lambday/shogun,geektoni/shogun,lambday/shogun,geektoni/shogun,besser82/shogun,geektoni/shogun,besser82/shogun,lambday/shogun,shogun-toolbox/shogun,besser82/shogun