- uschar **result, uschar **errmsg, BOOL *do_cache,
- int(*fn)(const uschar *, uschar *, uschar **, uschar **, BOOL *, BOOL *))
+ uschar **result, uschar **errmsg, uint *do_cache,
+ int(*fn)(const uschar *, uschar *, uschar **, uschar **, BOOL *, uint *))