#ifdef DEBUG
extern void checkFreeListSanity(void);
nat countFreeList(void);
+void markBlocks (bdescr *bd);
+void reportUnmarkedBlocks (void);
#endif
-lnat n_alloc_blocks; // currently allocated blocks
-lnat hw_alloc_blocks; // high-water allocated blocks
+extern lnat n_alloc_blocks; // currently allocated blocks
+extern lnat hw_alloc_blocks; // high-water allocated blocks
#endif /* BLOCK_ALLOC_H */