anchor.diff:    };
   
     syntastic = simpleDerivation rec {
  -    version = "3.1.0";
  +    version = "3.4.0";
       name    = "vim-syntastic-${version}";
   
       src = fetchurl {
         url    = "https://github.com/scrooloose/syntastic/archive/${version}.tar.gz";
  -      sha256 = "155zfb5z0gmd1xrpna4varqf502lq0cr41gmxq5v71r6kmb7ql82";
  +      sha256 = "0h8vfs6icpfwc41qx6n6rc1m35haxp2gaswg9fhcki2w2ikp6knb";
       };
   
       path = "syntastic";
  
positive.code:     '';
    };
  
    eighties = simpleDerivation {
      name = "vim-eighties-1.0.4";
      src = fetchurl {
        url    = "https://github.com/justincampbell/vim-eighties/archive/1.0.4.tar.gz";
        sha256 = "0cjd9hbg2qd7jjkvyi15f9ysp7m3aa2sg8nvbf80yb890rfkwaqr";
      };
      path = "eighties";
  
negative.code:     path = "vim-coffee-script";
    };
  
    command_T = simpleDerivation rec {
      version = "1.8";
      name = "vim-command-t-${version}";
      src = fetchurl {
        url    = "https://github.com/wincent/Command-T/archive/${version}.tar.gz";
        sha256 = "ad8664292e6eee40fbe195d856d20d93a8630e8c0149317ad72cc39423630800";
      };
      path = "Command-T";
      buildInputs = [ perl ruby ];
  