NULL, 0
};
-XBT_LOG_NEW_SUBCATEGORY(xbt,XBT_LOG_ROOT_CAT,"All XBT categories (simgrid toolbox)");
-XBT_LOG_NEW_SUBCATEGORY(surf,XBT_LOG_ROOT_CAT,"All SURF categories");
+XBT_LOG_NEW_CATEGORY(xbt,"All XBT categories (simgrid toolbox)");
+XBT_LOG_NEW_CATEGORY(surf,"All SURF categories");
+XBT_LOG_NEW_CATEGORY(msg,"All MSG categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(log,xbt,"Loggings from the logging mecanism itself");
void xbt_log_init(int *argc,char **argv, const char *defaultlog) {