diff --git a/serialport/CMakeLists.txt b/serialport/CMakeLists.txt
new file mode 100644
index 0000000..1a0fa09
--- /dev/null
+++ b/serialport/CMakeLists.txt
@@ -0,0 +1 @@
+IyBTZXRzIHRoZSBtaW5pbXVtIHZlcnNpb24gb2YgQ01ha2UgcmVxdWlyZWQgdG8gYnVpbGQgeW91ciBuYXRpdmUgbGlicmFyeS4KY21ha2VfbWluaW11bV9yZXF1aXJlZChWRVJTSU9OIDMuNC4xKQphZGRfbGlicmFyeSggc2VyaWFsX3BvcnQgU0hBUkVEIHNyYy9tYWluL2NwcC9TZXJpYWxQb3J0LmMgKQpmaW5kX2xpYnJhcnkoIGxvZy1saWIgbG9nICkKdGFyZ2V0X2xpbmtfbGlicmFyaWVzKCBzZXJpYWxfcG9ydCAke2xvZy1saWJ9ICk=
\ No newline at end of file