static time_t debugtime(void *unused)
{
  char *timestr = getenv("CURL_TIME");
  (void)unused;
  if(timestr) {
    curl_off_t val;
    (void)curlx_strtoofft(timestr, NULL, 10, &val);

    val += (curl_off_t)deltatime;
    return (time_t)val;
  }
  return time(NULL);
}
static time_t debugtime(void *unused)
{
  char *timestr = getenv("CURL_TIME");
  (void)unused;
  if(timestr) {
    curl_off_t val;
    (void)curlx_strtoofft(timestr, NULL, 10, &val);

    val += (curl_off_t)deltatime;
    return (time_t)val;
  }
  return time(NULL);
}