buildroot/package/pppd/Config.in

config BR2_PACKAGE_PPPD
	bool "pppd"
	help
	  An implementation of the Point-to-point protocol.

	  http://www.samba.org/ppp/

config BR2_PACKAGE_PPPD_FILTER
	depends on BR2_PACKAGE_PPPD
	select BR2_PACKAGE_LIBPCAP
	bool "filtering"
	help
	  Packet filtering abilities for pppd. If enabled,
	  the pppd active-filter and pass-filter options
	  are available.

config BR2_PACKAGE_PPPD_RADIUS
	depends on BR2_PACKAGE_PPPD
	bool "radius"
	help
	  Install RADIUS support for pppd