在MDK5的开发环境中基于407开发板编写的程序中使用到string.h时出现如下报错：
D:SoftPositionMDKARMARMCCBin..includestring.h(132): error:  #147: declaration is incompatible with "s8 strncmp(s8 *, s8 *, s8)" (declared at line 20 of "..USERINCUTILS.h")



求助各位如何解决