conflicting declaration 'typedef char int8'

周工，你好，我在使用过程中(Arduino+EDP+ESP8266)代码编译通不过，报int8类型冲突：
edp.c:22: error: conflicting declaration 'typedef char int8'

 typedef char            int8;

```
                     ^
```

In file included from d:\Program Files (x86)\Arduino\hardware\esp8266com\esp8266\cores\esp8266/esp8266_peri.h:24:0,

请问该如何解决，谢谢
