anchor.diff:     SET CURR=%%L
      IF EXIST "%%L" (
         IF NOT [%LUA_BINDIR%]==[] (
  -         IF EXIST %LUA_BINDIR%\lua5.1.exe (
  -            SET LUA_INTERPRETER=lua5.1.exe
  +         IF EXIST %LUA_BINDIR%\lua%LUA_VERSION%.exe (
  +            SET LUA_INTERPRETER=lua%LUA_VERSION%.exe
               ECHO       Found .\!LUA_INTERPRETER!
               GOTO INTERPRETER_IS_SET
            )
  
positive.code: SET FORCE_CONFIG=
  SET USE_MINGW=
  SET MKDIR=.\bin\mkdir -p
  SET LUA_LIB_NAMES=lua5.1.lib lua51.dll liblua.dll.a
  SET REGISTRY=OFF
  SET P_SET=FALSE
  
  
negative.code:    ECHO /SCRIPTS [dir] Where to install scripts installed by rocks.
     ECHO                Default is TREE/bin.
     ECHO.
     ECHO /LV [version]  Lua version to use; either 5.1 or 5.2.
     ECHO                Default is 5.1
     ECHO /L             Install LuaRocks' own copy of Lua even if detected,
     ECHO                this will always be a 5.1 installation.
     ECHO                ^(/LUA, /INC, /LIB, /BIN cannot be used with /L^)
     ECHO /LUA [dir]     Location where Lua is installed - e.g. c:\lua\5.1\
     ECHO                This is the base directory, the installer will look
  