extern BOOL store_extend_3(void *, BOOL, int, int, const char *, int);
extern void store_free_3(void *, const char *, int);
/* store_get_3 & store_get_perm_3 are in local_scan.h */
-extern void *store_malloc_3(int, const char *, int) ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
+extern void *store_malloc_3(size_t, const char *, int) ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
extern rmark store_mark_3(const char *, int);
extern void *store_newblock_3(void *, BOOL, int, int, const char *, int);
extern void store_release_above_3(void *, const char *, int);