anchor.diff:  vars.PREFIX = nil
   vars.VERSION = "2.1"
   vars.SYSCONFDIR = nil
  -vars.ROCKS_TREE = nil
  -vars.SCRIPTS_DIR = nil
  +vars.TREE_ROOT = nil
  +vars.TREE_BIN = nil
  +vars.TREE_LMODULE = nil
  +vars.TREE_CMODULE = nil
   vars.LUA_INTERPRETER = nil
   vars.LUA_PREFIX = nil
   vars.LUA_BINDIR = nil
  
positive.code: 		if not vars.PREFIX then
  			die("Option /P is required when using /SELFCONTAINED")
  		end
  		if vars.SYSCONFDIR or vars.ROCKS_TREE or vars.SCRIPTS_DIR then
  			die("Cannot combine /TREE, /SCRIPTS or /CONFIG with /SELFCONTAINED")
  		end
  	end
  	if INSTALL_LUA then
  
negative.code: 		elseif name == "/CONFIG" then
  			vars.SYSCONFDIR = option.value
  		elseif name == "/TREE" then
  			vars.TREE_ROOT = option.value
  		elseif name == "/SCRIPTS" then
  			vars.TREE_BIN = option.value
  		elseif name == "/LUAMOD" then
  			vars.TREE_LMODULE = option.value
  		elseif name == "/CMOD" then
  			vars.TREE_CMODULE = option.value
  		elseif name == "/LV" then
  			vars.LUA_VERSION = option.value
  		elseif name == "/L" then
  