modzlibd: Decompress part of "zlib" module, based on miniz tinfl.c .
diff --git a/py/builtin.h b/py/builtin.h
index 25edf32..af428d0 100644
--- a/py/builtin.h
+++ b/py/builtin.h
@@ -89,3 +89,4 @@
 
 // extmod modules
 extern const mp_obj_module_t mp_module_uctypes;
+extern const mp_obj_module_t mp_module_zlibd;