if File.exists? oldbasename and defined? BDB
# upgrading
warning "Upgrading old database #{oldbasename}..."
- oldb = ::BDB::Btree.open(oldbasename, nil, "r", 0600)
+ oldb = ::BDB::CIBtree.open(oldbasename, nil, "r", 0600)
oldb.each_key do |k|
@db.outlist k
@db.putlist k, (oldb.duplicates(k, false))