extern void _mesa_DeleteHashTable(struct _mesa_HashTable *table);
-extern void *_mesa_HashLookup(const struct _mesa_HashTable *table, GLuint key);
+extern void *_mesa_HashLookup(struct _mesa_HashTable *table, GLuint key);
extern void _mesa_HashInsert(struct _mesa_HashTable *table, GLuint key, void *data);