anchor.diff:        sed -i 's/\(if (++n_items == \)5\(.*\)/\1${builtins.toString recentListSize}\2/' shell/ev-window.c
       '';
   
  -  preFixup = ''
  -    # Tell Glib/GIO about the MIME info directory, which is used
  -    # by `g_file_info_get_content_type ()'.
  -    wrapProgram "$out/bin/evince" \
  -      --set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE" \
  -      --prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS:${gtk3}/share:${shared_mime_info}/share:$out/share:$GSETTINGS_SCHEMAS_PATH"
  -
  -  '';
  -
     doCheck = false; # would need pythonPackages.dogTail, which is missing
   
     meta = with stdenv.lib; {
  
positive.code: stdenv.mkDerivation rec {
    inherit (import ./src.nix fetchurl) name src;
  
    buildInputs = [
      pkgconfig intltool perl perlXMLParser libxml2
      glib gtk3 pango atk gdk_pixbuf gobjectIntrospection
      itstool gnome3.adwaita-icon-theme
      gnome3.libgnome_keyring gnome3.gsettings_desktop_schemas
      poppler ghostscriptX djvulibre libspectre
      makeWrapper libsecret librsvg gnome3.adwaita-icon-theme
    ] ++ stdenv.lib.optional supportXPS gnome3.libgxps;
  
    configureFlags = [
  
negative.code: { fetchurl, stdenv, pkgconfig, intltool, perl, perlXMLParser, libxml2
  , glib, gtk3, pango, atk, gdk_pixbuf, shared_mime_info, itstool, gnome3
  , poppler, ghostscriptX, djvulibre, libspectre, libsecret , wrapGAppsHook
  , librsvg, gobjectIntrospection
  , recentListSize ? null # 5 is not enough, allow passing a different number
  , supportXPS ? false    # Open XML Paper Specification via libgxps
  