message: Wrap WIN32_getWindowHandle() helper method in unnamed namespace
diff: @@ -13,6 +13,8 @@ extern SDL_Window* underlyingWindow;
  #if defined(WINDOWS) || defined(WIN32)
  +namespace
  +{
  /**
  * Gets a Windows API HWND handle to the main
  * window of the application.
  @@ -35,6 +37,7 @@ extern SDL_Window* underlyingWindow;
  return systemInfo.info.win.window;
  }
  +}
  #endif
  