anchor.diff:      (stdenv.lib.optionalString stdenv.isDarwin "-framework CoreFoundation")
     ];
   
  -  buildInputs = [ fontconfig libffi libtool makeWrapper sqlite ]
  +  buildInputs = [ fontconfig libffi libtool makeWrapper sqlite gsettings_desktop_schemas gtk3 ]
       ++ stdenv.lib.optionals stdenv.isDarwin [ CoreFoundation ];
   
     preConfigure = ''
  
positive.code: 
    postInstall = ''
      for p in $(ls $out/bin/) ; do
        wrapProgram $out/bin/$p --prefix LD_LIBRARY_PATH ":" "${LD_LIBRARY_PATH}";
      done
    '';
  
  
negative.code:     fontconfig
      glib
      gmp
      gtk3
      gsettings_desktop_schemas
      libedit
      libjpeg
      libpng
  