openflow build environment setup

openflow/include/python3.8/osmodule.h

@@ -0,0 +1,17 @@
+
+/* os module interface */
+
+#ifndef Py_OSMODULE_H
+#define Py_OSMODULE_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03060000
+PyAPI_FUNC(PyObject *) PyOS_FSPath(PyObject *path);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_OSMODULE_H */