-static void precalc (const struct ccase *, void *);
-static bool calc (const struct ccase *, void *);
-static void postcalc (void *);
+static void precalc (const struct ccase *, void *, const struct dataset *);
+static bool calc (const struct ccase *, void *, const struct dataset *);
+static bool postcalc (void *, const struct dataset *);