From 566c10a7197c4977cc698ed230ac2ac09260f329 Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg42.2a@gmail.com>
Date: Fri, 5 Jul 2013 11:32:49 +0200
Subject: add detection for luajittex interpreter

---
 luaotfload-tool.lua | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/luaotfload-tool.lua b/luaotfload-tool.lua
index 83fb3e0..4d3b411 100755
--- a/luaotfload-tool.lua
+++ b/luaotfload-tool.lua
@@ -36,11 +36,19 @@ see the luaotfload documentation for more info. Report bugs to
 
 --doc]]--
 
-kpse.set_program_name"luatex"
+kpse.set_program_name "luatex"
 
-if _G.getfenv then
-    local oldscript = kpse.find_file "luaotfload-legacy-tool.lua"
-    return require(oldscript)
+local runtime
+if _G.getfenv ~= nil then -- 5.1 or LJ
+    if _G.jit ~= nil then
+        runtime = { "jit", jit.version }
+    else
+        runtime = { "stock", _VERSION }
+        local oldscript = kpse.find_file "luaotfload-legacy-tool.lua"
+        return require (oldscript)
+    end
+else -- 5.2
+    runtime = { "stock", _VERSION }
 end
 
 local stringexplode   = string.explode
-- 
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