anchor.diff:  
     buildInputs = [
       adwaita-icon-theme
  +    dbus-glib
  +    dconf
  +    gconf
       gdk-pixbuf
       glib
       gnome-desktop
  
positive.code: , makeWrapper
  
  , adwaita-icon-theme
  , gdk-pixbuf
  , glib
  , gnome-desktop
  
negative.code: 
    preFixup = ''
      wrapProgram $out/libexec/gnome-session-binary \
        --set 'GSETTINGS_BACKEND' 'dconf' \
        --prefix 'GIO_EXTRA_MODULES' : "$GIO_EXTRA_MODULES" \
        --prefix 'GI_TYPELIB_PATH' : "$GI_TYPELIB_PATH" \
        --prefix 'XDG_DATA_DIRS' : "$GSETTINGS_SCHEMAS_PATH" \
        --prefix 'XDG_DATA_DIRS' : "$out/share" \
  