edje: use luajit by default, if you want lua use --enable-lua-old

configure.ac

@@ -3584,6 +3584,19 @@ AC_ARG_ENABLE([multisense],
    ],
    [want_multisense="no"])
 
+want_lua_old="no"
+AC_ARG_ENABLE([lua-old],
+   [AC_HELP_STRING([--enable-lua-old],
+       [Enable interpreted Lua support (5.1 or 5.2). @<:@default=disabled@:>@])],
+   [
+    if test "x${enableval}" = "xyes" ; then
+       want_lua_old="yes"
+    else
+       want_lua_old="no"
+    fi
+   ],
+   [want_lua_old="no"])
+
 # TODO: should we keep or remove these?
 want_edje_program_cache="no"
 want_edje_calc_cache="yes"
@@ -3612,8 +3625,14 @@ EFL_OPTIONAL_INTERNAL_DEPEND_PKG([EDJE], [${want_multisense}], [ecore-audio])
 
 EFL_ADD_FEATURE([EDJE], [physics])
 EFL_ADD_FEATURE([EDJE], [multisense])
+EFL_ADD_FEATURE([EDJE], [lua-old])
+
+if test "${want_lua_old}" = "yes"; then
+   EFL_CHECK_LUA_OLD([EDJE])
+else
+   EFL_DEPEND_PKG([EDJE], [LUAJIT], [luajit >= 2.0.0])
+fi
 
-EFL_CHECK_LUA([EDJE])
 EFL_ADD_LIBS([EDJE], [-lm])
 
 EFL_EVAL_PKGS([EDJE])
@@ -3629,6 +3648,10 @@ AM_CONDITIONAL([ENABLE_MULTISENSE], [test "${want_multisense}" = "yes"])
 AC_DEFINE_IF([ENABLE_MULTISENSE], [test "${want_multisense}" = "yes"],
   [1], [Use Multisense])
 AC_SUBST([want_multisense])
+AM_CONDITIONAL([ENABLE_LUA_OLD], [test "${want_lua_old}" = "yes"])
+AC_DEFINE_IF([ENABLE_LUA_OLD], [test "${want_lua_old}" = "yes"],
+  [1], [Use interpreted Lua (5.1 or 5.2)])
+AC_SUBST([want_lua_old])
 AC_SUBST([want_physics])
 
 ### Checks for header files

m4/efl_lua_old.m4

@@ -1,8 +1,9 @@
-dnl EFL_CHECK_LUA(EFL)
+dnl EFL_CHECK_LUA_OLD(EFL)
 dnl checks for lua 5.1 or 5.2 in pkg-config (multiple names) and -llua directly
 dnl will call EFL_ADD_LIBS() or EFL_DEPEND_PKG() as required.
 dnl this is a strict call and will abort if lua is not found
-AC_DEFUN([EFL_CHECK_LUA],
+dnl keep in mind that this is only executed if --enable-lua-old is set
+AC_DEFUN([EFL_CHECK_LUA_OLD],
 [dnl
 requirement_lua=""
 PKG_CHECK_EXISTS([lua >= 5.1.0], [requirement_lua="lua >= 5.1.0"],