SIZEOF_INT64_T     80 ext/rbconfig/sizeof/sizes.c #if SIZEOF_INT64_T != 0
SIZEOF_INT64_T   1523 time.c         #if WIDEVALUE_IS_WIDER && SIZEOF_TIME_T < SIZEOF_INT64_T
SIZEOF_INT64_T   1532 time.c         #if SIZEOF_TIME_T == SIZEOF_INT64_T