CC254 在引入<ctype.h>并编译的过程中遇到报错，怎么解决？

工程在引入<ctype.h>头文件并编译的过程中，出现了如下错误：

Type conflict for external/entry "__Small_Ctype", in module test_lib  against external/entry in module ?ctype;types have different memory attributes

请问这个错误是什么意思？该怎么修改？

这应该是warining吧

The following linker warnings can be ignored:

Warning [w6]: Type conflict for external/entry "Example3", in module Example4 against external/entry in module Example5; types have different memory attributes

是可以忽略的