anchor.diff:    configureFlags = [
       "--enable-tclshrl"
       "--enable-wishrl"
  -    "--with-tcl=${tcl}/lib"
       "--with-tk=${tk}/lib"
       "--with-readline-includes=${readline.dev}/include/readline"
       "--with-libtool=${libtool}"
  
positive.code: , tk
  }:
  
  stdenv.mkDerivation rec {
    pname = "tclreadline";
    version = "2.3.8";
  
  
negative.code:   ];
    buildInputs = [
      readline
      tk
    ];
  
  