Remove openmp default clause for compatibility.

      }

      }

    }

    }

#pragma omp parallel default(none) shared(num_reads_, num_reference_sequences, reference, index, read_batch1, read_batch2, barcode_batch, read_batch1_for_loading, read_batch2_for_loading, barcode_batch_for_loading, candidate_processor, mapping_processor, mapping_generator, mapping_writer, std::cerr, num_loaded_pairs_for_loading, num_loaded_pairs, mappings_on_diff_ref_seqs_for_diff_threads, mappings_on_diff_ref_seqs_for_diff_threads_for_saving, mappings_on_diff_ref_seqs, num_mappings_in_mem, max_num_mappings_in_mem, temp_mapping_file_handles, mm_to_candidates_cache, mm_history1, mm_history2) num_threads(mapping_parameters_.num_threads) reduction(+:num_candidates_, num_mappings_, num_mapped_reads_, num_uniquely_mapped_reads_, num_barcode_in_whitelist_, num_corrected_barcode_)

#pragma omp parallel shared(num_reads_, num_reference_sequences, reference, index, read_batch1, read_batch2, barcode_batch, read_batch1_for_loading, read_batch2_for_loading, barcode_batch_for_loading, candidate_processor, mapping_processor, mapping_generator, mapping_writer, std::cerr, num_loaded_pairs_for_loading, num_loaded_pairs, mappings_on_diff_ref_seqs_for_diff_threads, mappings_on_diff_ref_seqs_for_diff_threads_for_saving, mappings_on_diff_ref_seqs, num_mappings_in_mem, max_num_mappings_in_mem, temp_mapping_file_handles, mm_to_candidates_cache, mm_history1, mm_history2) num_threads(mapping_parameters_.num_threads) reduction(+:num_candidates_, num_mappings_, num_mapped_reads_, num_uniquely_mapped_reads_, num_barcode_in_whitelist_, num_corrected_barcode_)

    {

    {

      thread_num_candidates = 0;

      thread_num_candidates = 0;

      thread_num_mappings = 0;

      thread_num_mappings = 0;

            mapping_parameters_.num_threads / num_reference_sequences);

            mapping_parameters_.num_threads / num_reference_sequences);

      }

      }

    }

    }

#pragma omp parallel default(none) shared(num_reads_, mm_history, reference, index, read_batch, barcode_batch, read_batch_for_loading, barcode_batch_for_loading, std::cerr, num_loaded_reads_for_loading, num_loaded_reads, num_reference_sequences, mappings_on_diff_ref_seqs_for_diff_threads, mappings_on_diff_ref_seqs_for_diff_threads_for_saving, mappings_on_diff_ref_seqs, temp_mapping_file_handles, mm_to_candidates_cache, mapping_writer, candidate_processor, mapping_processor, mapping_generator, num_mappings_in_mem, max_num_mappings_in_mem) num_threads(mapping_parameters_.num_threads) reduction(+:num_candidates_, num_mappings_, num_mapped_reads_, num_uniquely_mapped_reads_, num_barcode_in_whitelist_, num_corrected_barcode_)

#pragma omp parallel shared(num_reads_, mm_history, reference, index, read_batch, barcode_batch, read_batch_for_loading, barcode_batch_for_loading, std::cerr, num_loaded_reads_for_loading, num_loaded_reads, num_reference_sequences, mappings_on_diff_ref_seqs_for_diff_threads, mappings_on_diff_ref_seqs_for_diff_threads_for_saving, mappings_on_diff_ref_seqs, temp_mapping_file_handles, mm_to_candidates_cache, mapping_writer, candidate_processor, mapping_processor, mapping_generator, num_mappings_in_mem, max_num_mappings_in_mem) num_threads(mapping_parameters_.num_threads) reduction(+:num_candidates_, num_mappings_, num_mapped_reads_, num_uniquely_mapped_reads_, num_barcode_in_whitelist_, num_corrected_barcode_)

    {

    {

      thread_num_candidates = 0;

      thread_num_candidates = 0;

      thread_num_mappings = 0;

      thread_num_mappings = 0;