unsigned_time_t  1025 thread.c       # define TIMEVAL_SEC_MAX ((TYPEOF_TIMEVAL_TV_SEC)(~(unsigned_time_t)0))
unsigned_time_t  2632 time.c         #define DEBUG_REPORT_GUESSRANGE fprintf(stderr, "find time guess range: %ld - %ld : %"PRI_TIMET_PREFIX"u\n", guess_lo, guess_hi, (unsigned_time_t)(guess_hi-guess_lo))