nixpkgs.config.packageOverrides = super: {
  pinentry = super.pinentry.override {
    gtk2 = null;
    gcr = super.gnome3.gcr;
  };

  gpgme = super.gpgme.overrideAttrs (old: {
    configureFlags = (old.configureFlags or []) ++ ["--disable-gpg-test"];
  });
};