moduzlib: Integrate into the system.
diff --git a/py/builtin.h b/py/builtin.h
index 526157f..5a68609 100644
--- a/py/builtin.h
+++ b/py/builtin.h
@@ -89,5 +89,6 @@
 // extmod modules
 extern const mp_obj_module_t mp_module_uctypes;
 extern const mp_obj_module_t mp_module_zlibd;
+extern const mp_obj_module_t mp_module_uzlib;
 extern const mp_obj_module_t mp_module_ujson;
 extern const mp_obj_module_t mp_module_ure;