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IQmath build error

Other Parts Discussed in Thread: CCSTUDIO

Hi! my target is DM6437.In my program,the IQmath lib is used.I include both IQmath_c64x+.lib and IQmath_ROM_c643x.lib.And of course ,the header file<IQmath.h> is included.

Here is the build results:

undefined first referenced symbol in file --------- ---------------- _IQexpTableMinMax C:\\CCStudio_v3.3\\boards\\ICETEK-DM6437-A\\CT 0509\\evmDM6437\\IQmath_c64x+.lib _IQexpTableCoeff C:\\CCStudio_v3.3\\boards\\ICETEK-DM6437-A\\CT 0509\\evmDM6437\\IQmath_c64x+.lib _IQlogTableCoeff C:\\CCStudio_v3.3\\boards\\ICETEK-DM6437-A\\CT 0509\\evmDM6437\\IQmath_c64x+.lib >> error: symbol referencing errors - './Debug/video_laplace_sharp.out' not built

I'm confused that why when I just use _IQmpy _IQdiv,build succeeded,but when I use the _IQ sqrt _IQ log,bulid failed.