Index: Mk/Uses/luajit.mk
===================================================================
--- /dev/null
+++ Mk/Uses/luajit.mk
@@ -0,0 +1,29 @@
+# Select your favorite luajit runtime
+# Feature:    luajit
+# Usage:      USES=  luajit[:version]
+# MAINTAINER: ports@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_LUAJIT_MK)
+_INCLUDE_USES_LUAJIT_MK=yes
+
+.if !empty(luajit_ARGS)
+LUAJIT_VER=	${luajit_ARGS}
+.else
+LUAJIT_VER=	${LUAJIT_DEFAULT}
+.endif
+
+# When adding a version, please keep the comment in
+# Mk/bsd.default-versions.mk in sync
+VALID_LUAJIT_VER=	luajit luajit-devel luajit-openresty
+
+.if empty(VALID_LUAJIT_VER:M${LUAJIT_DEFAULT})
+IGNORE=	Invalid luajit default version ${LUAJIT_DEFAULT}: valid versions are ${VALID_LUAJIT_VER}
+.endif
+
+.if empty(VALID_LUAJIT_VER:M${LUAJIT_VER})
+IGNORE=	Invalid luajit version ${LUAJIT_VER}: valid versions are ${VALID_LUAJIT_VER}
+.endif
+
+LIB_DEPENDS=	libluajit-5.1.so:lang/${LUAJIT_VER}
+
+.endif
Index: Mk/bsd.default-versions.mk
===================================================================
--- Mk/bsd.default-versions.mk
+++ Mk/bsd.default-versions.mk
@@ -86,6 +86,8 @@
 .  endif
 # Possible values: 5.1, 5.2, 5.3, 5.4
 LUA_DEFAULT?=		5.2
+# Possible values: luajit, luajit-devel, luajit-openresty
+LUAJIT_DEFAULT?=	luajit-devel
 # Possible values: 5.10, 5.20, 6.8
 MONO_DEFAULT=		5.10
 # Possible values: 5.6, 5.7, 8.0, 10.3m, 10.4m, 10.5m, 5.7p, 5.7w