anchor.diff:    };
   
     nativeBuildInputs = [
  -    gnum4 makeWrapper perl pkgconfig python2 ccache
  +    gnum4 makeWrapper perl pkgconfig python2
     ];
   
     buildInputs = [
  
positive.code:       --replace "mk_add_options AUTOCONF=/usr/bin/autoconf-2.13" "mk_add_options AUTOCONF=${autoconf213}/bin/autoconf" \
        --replace 'mk_add_options MOZ_OBJDIR=$HOME/build/wbobjects/' "" \
        --replace "ac_add_options --x-libraries=/usr/lib64" "ac_add_options --x-libraries=${lib.makeLibraryPath [ xorg.libX11 ]}" \
        --replace "_BUILD_64=1" "_BUILD_64=${lib.optionalString stdenv.hostPlatform.is64bit "1"}"
  
      echo >> $MOZCONFIG '
      #
  
negative.code:   configurePhase = ''
      export MOZCONFIG=$PWD/.mozconfig
      export MOZ_NOSPAM=1
  
      cp $src/doc/mozconfig.example $MOZCONFIG
      # Need to modify it
  