+
+/* regex.c */
+
+typedef struct regex regex;
+
+regex *rx_compile(byte *r);
+void rx_free(regex *r);
+int rx_match(regex *r, byte *s);
+int rx_subst(regex *r, byte *by, byte *src, byte *dest, uns destlen);
+
+/* objwalk.c */
+
+void scan_obj_tree(byte *, void (*)(oid_t, byte *));
+
+/* random.c */
+
+uns random_max(uns);
+
+/* mmap.c */
+
+void *mmap_file(byte *name, unsigned *len);
+
+#endif