-XBT_PUBLIC(tmgr_trace_t) tmgr_trace_new_from_file(std::string filename);
-XBT_PUBLIC(tmgr_trace_t) tmgr_trace_new_from_string(std::string id, std::string input, double periodicity);
+XBT_PUBLIC tmgr_trace_t tmgr_trace_new_from_file(std::string filename);
+XBT_PUBLIC tmgr_trace_t tmgr_trace_new_from_string(std::string id, std::string input, double periodicity);