wday <- _casm_ ``%r = ((struct tm *)%0)->tm_wday;'' tm
yday <- _casm_ ``%r = ((struct tm *)%0)->tm_yday;'' tm
isdst <- _casm_ ``%r = ((struct tm *)%0)->tm_isdst;'' tm
- zone <- _ccall_ ZONE tm
+ zone <- _ccall_ get_ZONE tm
tz <- _ccall_ GMTOFF tm
let tzname = unpackCString zone
return (CalendarTime (1900+year) mon mday hour min sec psec