v4.19.13 snapshot.
diff --git a/tools/build/feature/test-libpython-version.c b/tools/build/feature/test-libpython-version.c
new file mode 100644
index 0000000..47714b9
--- /dev/null
+++ b/tools/build/feature/test-libpython-version.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <Python.h>
+
+#if PY_VERSION_HEX >= 0x03000000
+	#error
+#endif
+
+int main(void)
+{
+	return 0;
+}