jehanne/sys/src/cmd/ip/ipconfig/build.json

{
	"ipconfig": {
		"Include": [
			"../../cmd.json"
		],
		"Install": "/arch/$ARCH/cmd/ip",
		"Program": "ipconfig",
		"SourceFiles": [
			"ipv6.c",
			"main.c",
			"ppp.c"
		]
	}
}