1SYSDIR?=${SRCTOP}/sys 2.include "${SYSDIR}/conf/kern.opts.mk" 3 4.PATH: ${SYSDIR}/net ${SYSDIR}/netinet ${SYSDIR}/netinet6 5 6KMOD= if_gif 7SRCS= if_gif.c opt_inet.h opt_inet6.h 8SRCS.INET=in_gif.c 9SRCS.INET6=in6_gif.c 10 11EXPORT_SYMS= YES 12 13.include <bsd.kmod.mk> 14