anchor.diff:  	return false
   end
   
  -local function get_runtime()
  -	local infile = vars.LUA_BINDIR .."\\"..vars.LUA_INTERPRETER
  +local function get_file_runtime(p,f) -- path, filename
  +	local infile = p.."\\"..f
   	local outfile = "output.txt"
   	local content
   	-- analyze binary
  
positive.code: 	os.remove(outfile)
  	if not content then
  		print("    Failed to analyze "..infile.." for the runtime used")
          return false
      end
  
  	-- lookup
  
negative.code: 	end
  
  	if result then
  		print("    "..f.." uses "..tostring(result)..".DLL as runtime")
  	else
  		print("    No runtime found for "..f)
  	end
  	return result
  end
  
  local function get_runtime()
  	-- first check interpreter
  	vars.LUA_RUNTIME = get_file_runtime(vars.LUA_BINDIR, vars.LUA_INTERPRETER)
  	if not vars.LUA_RUNTIME then
  		-- not found, check link library
  		vars.LUA_RUNTIME = get_file_runtime(vars.LUA_LIBDIR, vars.LUA_LIBNAME)
  	end
  	return (vars.LUA_RUNTIME ~= nil)
  end
  
  local function look_for_lua_install ()
  