Index: generic/include/adt/btree.h
===================================================================
--- generic/include/adt/btree.h	(revision 7f6e755b66aa78968eca1b1d352fb8316da04312)
+++ generic/include/adt/btree.h	(revision 8e5e78fc4a0aa3d8b584db91cac4789b99f71611)
@@ -77,4 +77,6 @@
 };
 
+extern void btree_init(void);
+
 extern void btree_create(btree_t *t);
 extern void btree_destroy(btree_t *t);