anchor.diff:      "--disable-gtk-doc"
       "--disable-gtk-doc-html"
       "--disable-gtk-doc-pdf"
  -    "--enable-maemo"
  +    "--disable-maemo"
       "--enable-journal"
  -    "--enable-libstreamer"
  +    # TODO: libstemmer support
  +    "--disable-libstemmer"
       "--enable-tracker-fts"
       "--disable-unit-tests"
       (enFlag "upower" (upower != null) null)
  +    # TODO: hal support
       "--disable-hal"
       (enFlag "network-manager" (networkmanager != null) null)
       (enFlag "libmediaart" (libmediaart != null) null)
  
positive.code:     # TODO: libiptcdata support
      "--disable-libiptcdata"
      (enFlag "exempi" (exempi != null) null)
      "--enable-meegotouch"
      "--enable-miner-fs"
      "--enable-extract"
      "--enable-tracker-writeback"
      "--disable-miner-apps"
      "--enable-user-guides"
      # TODO: miner-rss support
      "--disable-miner-rss"
      # evolution currently requires webkit-2.4
  
negative.code:       --prefix 'XDG_DATA_DIRS' : "$GSETTINGS_SCHEMAS_PATH" \
        --prefix 'XDG_DATA_DIRS' : "$out/share"
  
      wrapProgram $out/libexec/tracker-store \
        --set 'GSETTINGS_BACKEND' 'dconf' \
        --prefix 'GIO_EXTRA_MODULES' : "$GIO_EXTRA_MODULES" \
  