Add option to disable sdl window hit test with envar value

src/anbox/platform/sdl/window.cpp

@@ -72,8 +72,9 @@ Window::Window(const std::shared_ptr<Renderer> &renderer,
     BOOST_THROW_EXCEPTION(std::runtime_error(message));
   }
 
-  if (SDL_SetWindowHitTest(window_, &Window::on_window_hit, this) < 0)
-    BOOST_THROW_EXCEPTION(std::runtime_error("Failed to register for window hit test"));
+  if (utils::get_env_value("ANBOX_NO_SDL_WINDOW_HIT_TEST", "false") == "false")
+    if (SDL_SetWindowHitTest(window_, &Window::on_window_hit, this) < 0)
+      BOOST_THROW_EXCEPTION(std::runtime_error("Failed to register for window hit test"));
 
   SDL_SysWMinfo info;
   SDL_VERSION(&info.version);