anchor.diff:    meta = {
       description = "Reference implementation of the wayland protocol";
       homepage    = http://wayland.freedesktop.org/;
  -    license     = licenses.mit;
  -    platforms   = platforms.linux;
  -    maintainers = with maintainers; [ codyopel wkennington ];
  +    license     = lib.licenses.mit;
  +    platforms   = lib.platforms.linux;
  +    maintainers = with lib.maintainers; [ codyopel wkennington ];
     };
   
     passthru.version = version;
  
positive.code: { stdenv, fetchurl, pkgconfig
  , libffi, docbook_xsl, doxygen, graphviz, libxslt, xmlto
  , expat ? null # Build wayland-scanner (currently cannot be disabled as of 1.7.0)
  }:
  
negative.code:     sha256 = "173w0pqzk2m7hjlg15bymrx7ynxgq1ciadg03hzybxwnvfi4gsmx";
    };
  
    configureFlags = "--with-scanner";
  
    nativeBuildInputs = [ pkgconfig ];
  
  