anchor.diff:    };
   
     tagbar = simpleDerivation rec {
  -    version = "2.5";
  +    version = "2.6.1";
       name    = "vim-tagbar-${version}";
   
       meta = with stdenv.lib; {
  
positive.code: 
        mkdir $target/build
        cd $target/build
        cmake -G "Unix Makefiles" . $target/cpp -DPYTHON_LIBRARIES:PATH=${python}/lib/libpython2.7.so -DPYTHON_INCLUDE_DIR:PATH=${python}/include/python2.7
        make -j -j''${NIX_BUILD_CORES} -l''${NIX_BUILD_CORES}}
  
        ${vimHelpTags}
  
negative.code:   YouCompleteMe = stdenv.mkDerivation {
      src = fetchgit {
        url = "https://github.com/Valloric/YouCompleteMe.git";
        rev = "abfc3ee36adab11c0c0b9d086a164a69006fec79";
        sha256 = "1d25dp5kgqickl06hqvx4j3z51zblhsn3q3by2hayyj3g2zps4gm";
       };
   
      name = "youcompleteme-git-abfc3ee";
      buildInputs = [ python cmake clang.clang ];
  
      configurePhase = ":";
  
  