Index: head/Makefile.inc1
===================================================================
--- head/Makefile.inc1
+++ head/Makefile.inc1
@@ -1499,6 +1499,11 @@
 	${_+_}cd ${.CURDIR}/tools/build/options; sh makeman > \
 	    ${.CURDIR}/share/man/man5/src.conf.5
 
+.if make(sysent)
+.include <src.lua.mk>
+.endif
+
+_sysent_PATH=	${WORLDTMP}/legacy/usr/libexec:/usr/libexec:${PATH}
 _sysent_dirs=	sys/kern
 _sysent_dirs+=	sys/compat/freebsd32
 _sysent_dirs+=	sys/compat/cloudabi32	\
@@ -1509,7 +1514,9 @@
 		sys/i386/linux
 sysent: .PHONY
 .for _dir in ${_sysent_dirs}
-	${_+_}${MAKE} -C ${.CURDIR}/${_dir} sysent
+	@echo "${MAKE} -C ${.CURDIR}/${_dir} sysent"
+	${_+_}@env PATH=${_sysent_PATH} LUA=${LUA_CMD} \
+	    ${MAKE} -C ${.CURDIR}/${_dir} sysent
 .endfor
 
 #
@@ -2168,6 +2175,13 @@
 ${_bt}-lib/libdwarf: ${_bt_m4_depend}
 .endif
 
+# flua is required to regenerate syscall files.  It first appeared during the
+# 13.0-CURRENT cycle, thus needs to be built on -older releases and stable
+# branches.
+.if ${BOOTSTRAPPING} < 1300059
+_flua= libexec/flua
+.endif
+
 # r245440 mtree -N support added
 # r313404 requires sha384.h for libnetbsd, added to libmd in r292782
 .if ${BOOTSTRAPPING} < 1100093
@@ -2390,6 +2404,7 @@
     usr.bin/xinstall \
     ${_gensnmptree} \
     usr.sbin/config \
+    ${_flua} \
     ${_crunchide} \
     ${_crunchgen} \
     ${_nmtree} \
Index: head/sys/amd64/linux/Makefile
===================================================================
--- head/sys/amd64/linux/Makefile
+++ head/sys/amd64/linux/Makefile
@@ -5,11 +5,13 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
 sysent:  linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c
 
 linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c: \
-		../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
+		../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
Index: head/sys/amd64/linux32/Makefile
===================================================================
--- head/sys/amd64/linux32/Makefile
+++ head/sys/amd64/linux32/Makefile
@@ -5,11 +5,13 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
 sysent:  linux32_sysent.c linux32_syscall.h linux32_proto.h linux32_syscalls.c linux32_systrace_args.c
 
-linux32_sysent.c linux32_syscall.h linux32_proto.h linux32_syscalls.c linux32_systrace_args.c: ../../kern/makesyscalls.sh \
+linux32_sysent.c linux32_syscall.h linux32_proto.h linux32_syscalls.c linux32_systrace_args.c: ../../tools/makesyscalls.lua \
 		syscalls.master ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
Index: head/sys/arm64/linux/Makefile
===================================================================
--- head/sys/arm64/linux/Makefile
+++ head/sys/arm64/linux/Makefile
@@ -5,11 +5,13 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
 sysent:  linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c
 
 linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c: \
-		../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
+		../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
Index: head/sys/compat/cloudabi32/Makefile
===================================================================
--- head/sys/compat/cloudabi32/Makefile
+++ head/sys/compat/cloudabi32/Makefile
@@ -3,6 +3,8 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
@@ -11,7 +13,7 @@
 
 cloudabi32_sysent.c cloudabi32_syscall.h cloudabi32_proto.h \
     cloudabi32_syscalls.c cloudabi32_systrace_args.c: \
-    ../../kern/makesyscalls.sh ../../contrib/cloudabi/syscalls32.master \
+    ../../tools/makesyscalls.lua ../../contrib/cloudabi/syscalls32.master \
     ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh ../../contrib/cloudabi/syscalls32.master \
-	    ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua \
+	    ../../contrib/cloudabi/syscalls32.master ${.CURDIR}/syscalls.conf
Index: head/sys/compat/cloudabi64/Makefile
===================================================================
--- head/sys/compat/cloudabi64/Makefile
+++ head/sys/compat/cloudabi64/Makefile
@@ -1,5 +1,7 @@
 # $FreeBSD$
 
+.include <src.lua.mk>
+
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
@@ -11,7 +13,7 @@
 
 cloudabi64_sysent.c cloudabi64_syscall.h cloudabi64_proto.h \
     cloudabi64_syscalls.c cloudabi64_systrace_args.c: \
-    ../../kern/makesyscalls.sh ../../contrib/cloudabi/syscalls64.master \
+    ../../tools/makesyscalls.lua ../../contrib/cloudabi/syscalls64.master \
     ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh ../../contrib/cloudabi/syscalls64.master \
-	    ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua \
+	    ../../contrib/cloudabi/syscalls64.master ${.CURDIR}/syscalls.conf
Index: head/sys/compat/freebsd32/Makefile
===================================================================
--- head/sys/compat/freebsd32/Makefile
+++ head/sys/compat/freebsd32/Makefile
@@ -5,14 +5,16 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
 sysent:  freebsd32_sysent.c freebsd32_syscall.h freebsd32_proto.h freebsd32_systrace_args.c
 
 freebsd32_sysent.c freebsd32_syscalls.c freebsd32_syscall.h freebsd32_proto.h freebsd32_systrace_args.c : \
-	    ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf ../../kern/capabilities.conf
-	sh ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
+	    ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf ../../kern/capabilities.conf
+	${LUA} ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
 
 clean:
 	rm -f freebsd32_sysent.c freebsd32_syscalls.c freebsd32_syscall.h freebsd32_proto.h
Index: head/sys/i386/linux/Makefile
===================================================================
--- head/sys/i386/linux/Makefile
+++ head/sys/i386/linux/Makefile
@@ -5,11 +5,13 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
 sysent:  linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c
 
 linux_sysent.c linux_syscall.h linux_proto.h linux_syscalls.c linux_systrace_args.c: \
-		../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
-	sh ../../kern/makesyscalls.sh syscalls.master ${.CURDIR}/syscalls.conf
+		../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
+	${LUA} ../../tools/makesyscalls.lua syscalls.master ${.CURDIR}/syscalls.conf
Index: head/sys/kern/Makefile
===================================================================
--- head/sys/kern/Makefile
+++ head/sys/kern/Makefile
@@ -6,6 +6,8 @@
 # Don't use an OBJDIR
 .OBJDIR: ${.CURDIR}
 
+.include <src.lua.mk>
+
 all:
 	@echo "make sysent only"
 
@@ -13,6 +15,6 @@
 ../sys/sysproto.h
 
 init_sysent.c syscalls.c systrace_args.c ../sys/syscall.h \
-../sys/syscall.mk ../sys/sysproto.h: makesyscalls.sh syscalls.master \
+../sys/syscall.mk ../sys/sysproto.h: ../tools/makesyscalls.lua syscalls.master \
 capabilities.conf
-	sh makesyscalls.sh syscalls.master
+	${LUA} ../tools/makesyscalls.lua syscalls.master
Index: head/sys/sys/param.h
===================================================================
--- head/sys/sys/param.h
+++ head/sys/sys/param.h
@@ -60,7 +60,7 @@
  *		in the range 5 to 9.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 1300058	/* Master, propagated to newvers */
+#define __FreeBSD_version 1300059	/* Master, propagated to newvers */
 
 /*
  * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,
Index: head/tools/build/Makefile
===================================================================
--- head/tools/build/Makefile
+++ head/tools/build/Makefile
@@ -127,6 +127,7 @@
 	usr/include/casper \
 	usr/include/private/zstd \
 	usr/lib \
+	usr/libexec
 
 installdirs:
 	mkdir -p ${INSTALLDIR_LIST:S,^,${DESTDIR}/,}