+#define sleep(x) smpi_sleep(x)
+#define usleep(x) smpi_usleep(x)
+#define gettimeofday(x, y) smpi_gettimeofday(x, NULL)
+#if _POSIX_TIMERS > 0
+#define nanosleep(x, y) smpi_nanosleep(x, y)
+#define clock_gettime(x, y) smpi_clock_gettime(x, y)
+#endif
+#if HAVE_MC