M4板子屏的问题

[img]file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/469142082/QQ/WinTemp/RichOle/0Y0N1WA$%7BOV@@(~UR[UGWN7.jpg[/img]
Building configuration: xianshi - Debug
Updating build tree...
Linking
Error[Li005]: no definition for "lcd_ili932x_init" [referenced from D:\课程实例\tuxingku\xianshi\Debug\Obj\main.o]
Error[Li005]: no definition for "lcd_backlight_on" [referenced from D:\课程实例\tuxingku\xianshi\Debug\Obj\main.o]
Error[Li005]: no definition for "lcd_ili932x_flush" [referenced from D:\课程实例\tuxingku\xianshi\Debug\Obj\main.o]
Error[Li005]: no definition for "g_slcd_320x240_ili932x" [referenced from D:\课程实例\tuxingku\xianshi\Debug\Obj\main.o]
Error while running Linker

Total number of errors: 4
Total number of warnings: 0

M4的板子，我想用IAR编译一下，driverlib库和grlib库已经加完了，头文件的路径也设置了，编译的时候没报错，链接的时候报上面的错，是什么原因呀