anchor.diff:      installFlagsArray+=("PREFIX=$out")
     '';
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       homepage = http://tools.suckless.org/slock;
       description = "Simple X display locker";
       license = licenses.mit;
  
positive.code: { stdenv
  , fetchurl
  , xorg
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:   };
  
    buildInputs = [
      libx11
      libxext
      libxrandr
      libxrender
      xorgproto
    ];
  
    # Don't setuid as nixbuild doesn't allow this
  