cast sql_mode to ulonglong before int8store, otherwise the implementation of int8store
  based on >> complains that we do 32-bit var >> 32 which is undefined according to C standard.
  (compiler warning appeared on SGI Irix)


sql/log_event.cc:
  cast sql_mode to ulonglong before int8store, otherwise the implementation of int8store
  based on >> complains that we do 32-bit var >> 32 which is undefined according to C standard.
  (compiler warning appeared on SGI Irix)