anchor.diff:  vars.LUADIR = S"$FULL_PREFIX\\lua"
   vars.INCDIR = S"$FULL_PREFIX\\include"
   vars.LUA_SHORTV = vars.LUA_VERSION:gsub("%.", "")
  -vars.SYSCONFFILENAME = S"config-$LUA_VERSION.lua"
   
   if INSTALL_LUA then
   	if vars.LUA_VERSION ~= "5.1" then
  
positive.code: 	datapath = os.getenv("ProgramW6432") .. [[\LuaRocks]]
  end
  vars.SYSCONFDIR = vars.SYSCONFDIR or vars.PREFIX
  vars.TREE_ROOT = vars.TREE_ROOT or datapath..[[\systree]]
  if SELFCONTAINED then
  	vars.SYSCONFDIR = vars.PREFIX
  
negative.code: vars.PREFIX = nil
  vars.VERSION = "2.2"
  vars.SYSCONFDIR = nil
  vars.SYSCONFFILENAME = nil
  vars.CONFIG_FILE = nil
  vars.TREE_ROOT = nil
  vars.TREE_BIN = nil
  vars.TREE_LMODULE = nil
  