-#define sleep(x) ({ smpi_trace_set_call_location(__FILE__,__LINE__); smpi_sleep(x); })
-#define usleep(x) ({ smpi_trace_set_call_location(__FILE__,__LINE__); smpi_usleep(x); })
+#define sleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__), smpi_sleep(x))
+#define usleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__), smpi_usleep(x))