anchor.diff:  { stdenv, fetchFromGitHub, pkgconfig, cmake
   
   # dependencies
  -, glib
  +, glib, libXinerama
   
   # optional features without extra dependencies
   , mpdSupport          ? true
  
positive.code: 
    NIX_LDFLAGS = "-lgcc_s";
  
    buildInputs = [ pkgconfig glib cmake ]
      ++ optionals docsSupport        [ docbook2x libxslt man less ]
      ++ optional  ncursesSupport     ncurses
      ++ optional  x11Support         xlibsWrapper
  
negative.code: 
  stdenv.mkDerivation rec {
    name = "conky-${version}";
    version = "1.10.3";
  
    src = fetchFromGitHub {
      owner = "brndnmtthws";
      repo = "conky";
      rev = "v${version}";
      sha256 = "0sa2jl159jk5p2hr37adwq84m0ynva7v87qrwj1xv0kw8l4qzhjs";
    };
  
    postPatch = ''
  