anchor.diff:    '';
   
     mesonFlags = [
  -    "-Dman=false"
       "-Dplugin_dummy=true"
       "-Dbootdir=/boot"
       "-Dudevdir=lib/udev"
  
positive.code:     (fetchpatch {
        url = https://github.com/hughsie/fwupd/commit/bd6082574989e4f48b66c7270bb408d439b77a06.patch;
        sha256 = "17pixyizkmn6wlsjmr1wwya17ivn770hdv9mp769vifxinya8w9y";
      })
      # https://github.com/hughsie/fwupd/issues/405
      (fetchpatch {
  
negative.code: { stdenv, fetchurl, fetchpatch, gtk_doc, pkgconfig, gobjectIntrospection, intltool
  , libgudev, polkit, appstream-glib, gusb, sqlite, libarchive, glib_networking
  , libsoup, help2man, gpgme, libxslt, elfutils, libsmbios, efivar, glibcLocales
  , fwupdate, libyaml, valgrind, meson, libuuid, colord, docbook_xml_dtd_43, docbook_xsl
  , ninja, gcab, gnutls, python3, wrapGAppsHook, json_glib
  , shared_mime_info, umockdev
  