anchor.diff:        --prefix 'PATH' : "${which}/bin"
     '';
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "A tiling window manager";
       homepage = https://github.com/conformal/spectrwm;
       license = licenses.isc;
  
positive.code: { stdenv
  , fetchpatch
  , fetchFromGitHub
  , makeWrapper
  
  , fontconfig
  , freetype
  , which
  , xorg
  }:
  
  stdenv.mkDerivation rec {
    name = "spectrwm-2016-12-09";
  
    src = fetchFromGitHub {
      version = 2;
      owner = "conformal";
      repo = "spectrwm";
      rev = "2646d004bf17fb42799b887b4781a28de4c8bfb9";
      sha256 = "cc331269543ab8b0b2018ec7be549e0856738e1e2eeb8787280079fe7d225c86";
    };
  
    nativeBuildInputs = [
  
negative.code:   buildInputs = [
      fontconfig
      freetype
      libx11
      libxcb
      libxcursor
      libxft
      libxrandr
      libxrender
      libxt
      #libxtst
      xorg.libXtst
      randrproto
      renderproto
      xorg.xcbutil
      xorg.xcbutilkeysyms
      xorg.xcbutilwm
      xproto
    ];
  
    postUnpack = ''
  