Adaptations for Renesas CCRX toolchain and Rx72N controller performed

src/device/usbd_pvt.h

@@ -51,10 +51,21 @@ typedef struct
   void     (* sof              ) (uint8_t rhport); /* optional */
 } usbd_class_driver_t;
 
+#if !defined(TU_HAS_NO_ATTR_WEAK)
 // Invoked when initializing device stack to get additional class drivers.
 // Can optionally implemented by application to extend/overwrite class driver support.
 // Note: The drivers array must be accessible at all time when stack is active
 usbd_class_driver_t const* usbd_app_driver_get_cb(uint8_t* driver_count) TU_ATTR_WEAK;
+#else
+ #if ADD_WEAK_FUNC_USBD_APP_DRIVER_GET_CB
+  #define USBD_APP_DRIVER_GET_CB  usbd_app_driver_get_cb
+ #endif
+ #ifndef USBD_APP_DRIVER_GET_CB
+  #define USBD_APP_DRIVER_GET_CB    NULL
+ #else
+  extern usbd_class_driver_t const* USBD_APP_DRIVER_GET_CB(uint8_t* driver_count);
+ #endif
+#endif
 
 
 typedef bool (*usbd_control_xfer_cb_t)(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);