anchor.diff:       };
     };
   
  -  tmuxNavigator = buildVimPlugin {
  +  tmux-navigator = buildVimPlugin {
       name = "tmux-navigator-git-3de98bfc";
       src = fetchgit {
         url = "https://github.com/christoomey/vim-tmux-navigator.git";
  
positive.code:     # git version. It also depends on some additional plugins (see addon-info.json)
    };
  
    YouCompleteMe = stdenv.mkDerivation {
      src = fetchgit {
        url = "https://github.com/Valloric/YouCompleteMe.git";
        rev = "a2cae90f7ba1746bf1209edd6739f87d5914b375";
  
negative.code:       platforms = stdenv.lib.platforms.linux;
      };
    };
    YouCompleteMe = youcompleteme; # backwards compat, added 2014-10-18
  
    syntastic = buildVimPlugin rec {
      version = "3.4.0";
  