anchor.diff:    );
   
     ver1 = "120";
  -  ver2 = "1";
  -  ver3 = "1";
  +  ver2 = "2";
  +  ver3 = "2";
     version =   "${ver1}.${ver2}.${ver3}";
     ver_dash =  "${ver1}-${ver2}-${ver3}";
     ver2_dash = "${ver1}-${ver2}";
   
     binary_src = fetchurl {
       url = "mirror://sourceforge/simutrans/simutrans/${ver_dash}/simutrans-src-${ver_dash}.zip";
  -    sha256 = "00cyxbn17r9p1f08jvx1wrhydxknkrxj5wk6ld912yicfql998r0";
  +    sha256 = "1yi6rwbrnfd65qfz63cncw2n56pbypvg6cllwh71mgvs6x2c28kz";
     };
   
   
  
positive.code:     };
      "pak128.german" = {
        url = "mirror://sourceforge/simutrans/PAK128.german/"
          + "PAK128.german_0.8_${ver1}.x/PAK128.german_0.8.0_${ver1}.x.zip";
        sha256 = "1a8pc88vi59zlvff9i1f8nphdmisqmgg03qkdvrf5ks46aw8j6s5";
      };
  
      /* This release contains accented filenames that prevent unzipping.
  
negative.code:     (pakName: attrs: mkPak (attrs // {inherit pakName;}))
    {
      pak64 = {
        srcPath = "120-2/simupak64-120-2";
        sha256 = "1s310pssar4s1nf6gi9cizbx4m75avqm2qk039ha5rk8jk4lzkmk";
      };
      "pak64.japan" = {
        # No release for 120.2 yet!
        srcPath = "120-0/simupak64.japan-120-0-1";
        sha256 = "14swy3h4ij74bgaw7scyvmivfb5fmp21nixmhlpk3mav3wr3167i";
      };
  
      pak128 = {
        srcPath = "pak128%20for%20ST%20120.2.2%20%282.7%2C%20minor%20changes%29/pak128";
        sha256 = "1x6g6yfv1hvjyh3ciccly1i2k2n2b63dw694gdg4j90a543rmclg";
      };
      "pak128.britain" = {
        srcPath = "pak128.Britain%20for%20120-1/pak128.Britain.1.17-120-1";
        sha256 = "1nviwqizvch9n3n826nmmi7c707dxv0727m7lhc1n2zsrrxcxlr5";
      };
      "pak128.cs" = { # note: it needs pak128 to work
  