-- ./cpp/src/Freeze/MapI.cpp
++ ./cpp/src/Freeze/MapI.cpp
try
{
#if DB_VERSION_MAJOR != 4
#if DB_VERSION_MAJOR < 4
#error Freeze requires DB 4.x
#error Freeze requires DB 4.x or greater
#endif
#if DB_VERSION_MINOR < 3
#if DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 3
_db->stat(&s, 0);
#else
_db->stat(_connection->dbTxn(), &s, 0);