Index: head/sys/conf/sysent.mk
===================================================================
--- head/sys/conf/sysent.mk	(revision 356936)
+++ head/sys/conf/sysent.mk	(revision 356937)
@@ -1,35 +1,38 @@
 # $FreeBSD$
 
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
 .include <bsd.sysdir.mk>
 .include <src.lua.mk>
 
 COMMON_GENERATED=	proto.h		\
 			syscall.h	\
 			syscalls.c	\
 			sysent.c	\
 			systrace_args.c
 
 GENERATED_PREFIX?=
 GENERATED?=	${COMMON_GENERATED:S/^/${GENERATED_PREFIX}/}
 SYSENT_FILE?=	syscalls.master
 SYSENT_CONF?=	syscalls.conf
 
 # Including Makefile should override SYSENT_FILE and SYSENT_CONF as needed,
 # and set GENERATED.
 SRCS+=	${SYSENT_FILE}
 SRCS+=	${SYSENT_CONF}
-MAKESYSCALLS=	${SYSDIR}/tools/makesyscalls.lua
 
+MAKESYSCALLS_INTERP?=	${LUA}
+MAKESYSCALLS_SCRIPT?=	${SYSDIR}/tools/makesyscalls.lua
+MAKESYSCALLS=	${MAKESYSCALLS_INTERP} ${MAKESYSCALLS_SCRIPT}
+
 all:
 	@echo "make sysent only"
 
 # We .ORDER these explicitly so that we only run MAKESYSCALLS once, rather than
 # potentially once for each ${GENERATED} file.
 .ORDER: ${GENERATED}
 sysent: ${GENERATED}
 
-${GENERATED}: ${MAKESYSCALLS} ${SRCS}
-	${LUA} ${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}
+${GENERATED}: ${MAKESYSCALLS_SCRIPT} ${SRCS}
+	${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}