+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_cbps);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_convert);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_create);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_exchange);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_lexer);
+XBT_LOG_EXTERNAL_CATEGORY(gras_ddt_parse);
+XBT_LOG_EXTERNAL_CATEGORY(gras_modules);
+XBT_LOG_EXTERNAL_CATEGORY(gras_msg);
+XBT_LOG_EXTERNAL_CATEGORY(gras_msg_read);
+XBT_LOG_EXTERNAL_CATEGORY(gras_msg_rpc);
+XBT_LOG_EXTERNAL_CATEGORY(gras_timer);
+XBT_LOG_EXTERNAL_CATEGORY(gras_trp);
+XBT_LOG_EXTERNAL_CATEGORY(gras_trp_meas);
+XBT_LOG_EXTERNAL_CATEGORY(gras_virtu);
+XBT_LOG_EXTERNAL_CATEGORY(gras_virtu_emul);
+XBT_LOG_EXTERNAL_CATEGORY(gras_virtu_process);
+