config EXTERNAL_FREETZ_PACKAGE_RRDTOOL
	depends on EXTERNAL_ENABLED && FREETZ_PACKAGE_RRDTOOL
	bool "RRDtool"
	default n
	help
		externals these file(s):
		 /usr/bin/rrdtool
		 /usr/share/rrdtool (only if external option "Keep subdirectories" is enabled)