anchor.diff: -{ stdenv, fetchurl, pkgconfig, vala, glib, libxslt, gtk3, wrapGAppsHook
  -, webkitgtk, json-glib, librest, libsecret, gtk-doc, gobject-introspection
  -, gettext, icu, glib-networking
  -, libsoup, docbook_xsl, docbook_xml_dtd_412, gnome3, gcr, kerberos
  +{ stdenv
  +, fetchurl
  +, pkgconfig
  +, vala
  +, glib
  +, libxslt
  +, gtk3
  +, wrapGAppsHook
  +, webkitgtk
  +, json-glib
  +, librest
  +, libsecret
  +, gtk-doc
  +, gobject-introspection
  +, gettext
  +, icu
  +, glib-networking
  +, libsoup
  +, docbook_xsl
  +, docbook_xml_dtd_412
  +, gnome3
  +, gcr
  +, kerberos
   }:
   
  -let
  +stdenv.mkDerivation rec {
     pname = "gnome-online-accounts";
     version = "3.34.1";
  -in stdenv.mkDerivation rec {
  -  name = "${pname}-${version}";
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
  
positive.code:   };
  
    meta = with stdenv.lib; {
      platforms = platforms.linux;
      maintainers = gnome3.maintainers;
    };
  }
  
negative.code:     "--enable-documentation"
    ];
  
    nativeBuildInputs = [
      docbook_xml_dtd_412
      docbook_xsl
      gettext
      gobject-introspection
      gtk-doc
      libxslt
      pkgconfig
      vala
      wrapGAppsHook
    ];
  
    buildInputs = [
      gcr
      glib
      glib-networking
      gtk3
      icu
      json-glib
      kerberos
      librest
      libsecret
      libsoup
      webkitgtk
    ];
  
    passthru = {
  