SIR_WALLCLOCK     102 src/dps8/utfile.c   st1ret = clock_gettime(SIR_WALLCLOCK, &st1);
SIR_WALLCLOCK     579 src/libsir/src/sirinternal.c     bool gettime = _sir_clock_gettime(SIR_WALLCLOCK, &now_sec, &now_msec);
SIR_WALLCLOCK     838 src/simh/sim_tmxr.c   st1ret = clock_gettime(SIR_WALLCLOCK, &ts);