Bump to 3.9.0a0
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index a74ee98..1225912 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -274,11 +274,11 @@
file in their Makefile (other compilers are
generally taken care of by distutils.) */
# if defined(_DEBUG)
-# pragma comment(lib,"python38_d.lib")
+# pragma comment(lib,"python39_d.lib")
# elif defined(Py_LIMITED_API)
# pragma comment(lib,"python3.lib")
# else
-# pragma comment(lib,"python38.lib")
+# pragma comment(lib,"python39.lib")
# endif /* _DEBUG */
# endif /* _MSC_VER */
# endif /* Py_BUILD_CORE */