modussl: SSL socket wrapper module based on axTLS.
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 99bf475..4b986ee 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -682,6 +682,10 @@
 #define MICROPY_PY_MACHINE (0)
 #endif
 
+#ifndef MICROPY_PY_USSL
+#define MICROPY_PY_USSL (0)
+#endif
+
 /*****************************************************************************/
 /* Hooks for a port to add builtins                                          */