Update

Kha/Backends/Kore-hxcpp/khacpp/test/native/externs/RectangleApi.hx

@@ -0,0 +1,9 @@
+package externs;
+
+// This class acts as a container for the Rectangle implementation, which will get included
+//  in the cpp file, and therfore get compiled and linked with the correct flags
+@:cppInclude("./RectangleImpl.cpp")
+@:keep
+class RectangleApi
+{
+}