/* do_patch.c */
int do_patch(void *result, void *, struct Cell_stats *, int, RASTER_MAP_TYPE,
             size_t, int, int);

/* support.c */
int support(char **, struct Cell_stats *, int, struct Categories *, int *,
            struct Colors *, int *, RASTER_MAP_TYPE);

void merge_threads(struct Cell_stats **, int, int);
