const struct missing_values *mv)
{
struct casefile *dest = fastfile_create (casefile_get_value_cnt (cf));
- struct casereader *lookahead = casefile_get_reader (cf);
+ struct casereader *lookahead = casefile_get_reader (cf, NULL);
struct casereader *pos = casereader_clone (lookahead);
struct ccase group_case;
bool warn = true;