extern void auth_heimdal_gssapi_init(auth_instance *);
extern int auth_heimdal_gssapi_server(auth_instance *, uschar *);
-extern int auth_heimdal_gssapi_client(auth_instance *, smtp_inblock *,
- smtp_outblock *, int, uschar *, int);
+extern int auth_heimdal_gssapi_client(auth_instance *, void *, int, uschar *, int);
extern void auth_heimdal_gssapi_version_report(FILE *f);
/* End of heimdal_gssapi.h */