anchor.diff:        mkdir -p $target
         cp -a ./ $target
   
  +
         mkdir $target/build
         cd $target/build
  -      cmake -G "Unix Makefiles" . $target/cpp -DPYTHON_LIBRARIES:PATH=${python}/lib/libpython2.7.so -DPYTHON_INCLUDE_DIR:PATH=${python}/include/python2.7 -DUSE_CLANG_COMPLETER=ON -DUSE_SYSTEM_LIBCLANG=ON
  -      make -j -j''${NIX_BUILD_CORES} -l''${NIX_BUILD_CORES}}
  +      cmake -G "Unix Makefiles" . $target/third_party/ycmd/cpp -DPYTHON_LIBRARIES:PATH=${python}/lib/libpython2.7.so -DPYTHON_INCLUDE_DIR:PATH=${python}/include/python2.7 -DUSE_CLANG_COMPLETER=ON -DUSE_SYSTEM_LIBCLANG=ON
  +      make ycm_support_libs -j''${NIX_BUILD_CORES} -l''${NIX_BUILD_CORES}}
  +      ${bash}/bin/bash $target/install.sh --clang-completer
   
         ${vimHelpTags}
         vimHelpTags $target
  
positive.code: { fetchurl, stdenv, python, cmake, vim, perl, ruby, unzip, which, fetchgit, clang }:
  
  /*
  About Vim and plugins
  
negative.code:   YouCompleteMe = stdenv.mkDerivation {
      src = fetchgit {
        url = "https://github.com/Valloric/YouCompleteMe.git";
        rev = "67288080ea7057ea3111cb4c863484e3b150e738";
        sha256 = "1a3rwdl458z1yrp50jdwp629j4al0zld21n15sad28g51m8gw5ka";
       };
  
      name = "youcompleteme-git-6728808";
      buildInputs = [ python cmake clang.clang ];
  
      configurePhase = ":";
  