Index: stable/11/sys/modules/tcp/Makefile
===================================================================
--- stable/11/sys/modules/tcp/Makefile	(revision 365468)
+++ stable/11/sys/modules/tcp/Makefile	(revision 365469)
@@ -1,23 +1,22 @@
 #
 # $FreeBSD$
 #
 
-SYSDIR?=${SRCTOP}/sys
-.include "${SYSDIR}/conf/kern.opts.mk"
+.include <kmod.opts.mk>
 
 SUBDIR=	\
 	${_tcp_fastpath} \
 	${_tcpmd5} \
 
 .if ${MK_EXTRA_TCP_STACKS} != "no" || defined(ALL_MODULES)
 _tcp_fastpath=	fastpath
 .endif
 
 .if (${MK_INET_SUPPORT} != "no" || ${MK_INET6_SUPPORT} != "no") || \
 	defined(ALL_MODULES)
 .if ${KERN_OPTS:MIPSEC_SUPPORT} && !${KERN_OPTS:MIPSEC}
 _tcpmd5=	tcpmd5
 .endif
 .endif
 
 .include <bsd.subdir.mk>
Index: stable/12/sys/modules/tcp/Makefile
===================================================================
--- stable/12/sys/modules/tcp/Makefile	(revision 365468)
+++ stable/12/sys/modules/tcp/Makefile	(revision 365469)
@@ -1,23 +1,22 @@
 #
 # $FreeBSD$
 #
 
-SYSDIR?=${SRCTOP}/sys
-.include "${SYSDIR}/conf/kern.opts.mk"
+.include <kmod.opts.mk>
 
 SUBDIR=	\
         ${_tcp_rack} \
 	${_tcpmd5} \
 
 .if ${MK_EXTRA_TCP_STACKS} != "no" || defined(ALL_MODULES)
 _tcp_rack= 	rack
 .endif
 
 .if (${MK_INET_SUPPORT} != "no" || ${MK_INET6_SUPPORT} != "no") || \
 	defined(ALL_MODULES)
 .if ${KERN_OPTS:MIPSEC_SUPPORT} && !${KERN_OPTS:MIPSEC}
 _tcpmd5=	tcpmd5
 .endif
 .endif
 
 .include <bsd.subdir.mk>