/* produce.c */
extern void produce(struct natstr *, struct sctstr *);
extern double prod_output(struct sctstr *, double);
-extern double prod_materials_cost(struct pchrstr *, short[], int *);
-extern double prod_resource_limit(struct pchrstr *, unsigned char *);
extern double prod_eff(int, float);
/* removewants.c */
extern int update_removewants(void);