Xapian::TermGenerator *term_gen;
Xapian::ValueRangeProcessor *value_range_processor;
Xapian::ValueRangeProcessor *date_range_processor;
+#if HAVE_XAPIAN_FIELD_PROCESSOR
+ Xapian::FieldProcessor *date_field_processor;
+#endif
Xapian::ValueRangeProcessor *last_mod_range_processor;
};