/*
-@deftypefn int gettimeofday (struct timeval *@var{tp}, void *@var{tz})
+@deftypefn Supplemental int gettimeofday (struct timeval *@var{tp}, void *@var{tz})
Writes the current time to @var{tp}. This implementation requires
that @var{tz} be NULL. Returns 0 on success, -1 on failure.