anchor.diff:  , libxrandr
   , libxrender
   , ncurses
  -, randrproto
   , systemd_lib
   , xorg
   , xorg-server
  -, xproto
  +, xorgproto
   }:
   
   stdenv.mkDerivation rec {
  
positive.code: , lib
  
  , file
  , inputproto
  , kbproto
  , libx11
  , libxext
  , libxi
  
negative.code:   buildInputs = [
      ncurses
      systemd_lib
      libx11
      libxext
      libxi
  