编译mpp_sample出错

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用的是FTP下载的镜像，使用SD卡启动，下载好mpp_sample后
编译sample_virvi2vo.c出错，在sample_virvi2vo目录下直接make，出现如下错误，


  LD    sample_virvi2vo
sample_virvi2vo.o: In function `main':
sample_virvi2vo.c.text.startup.main+0x14fc): undefined reference to `AW_MPI_ISP_GetHue'
sample_virvi2vo.c.text.startup.main+0x1548): undefined reference to `AW_MPI_ISP_SetHue'
sample_virvi2vo.c.text.startup.main+0x1558): undefined reference to `AW_MPI_ISP_GetHue'
sample_virvi2vo.c.text.startup.main+0x1584): undefined reference to `AW_MPI_ISP_GetAeMinMaxExp'
sample_virvi2vo.c.text.startup.main+0x15cc): undefined reference to `AW_MPI_ISP_SetAeMinMaxExp'
sample_virvi2vo.c.text.startup.main+0x15e0): undefined reference to `AW_MPI_ISP_GetAeMinMaxExp'
sample_virvi2vo.c.text.startup.main+0x160c): undefined reference to `AW_MPI_ISP_GetAeMinMaxExp'
sample_virvi2vo.c.text.startup.main+0x1654): undefined reference to `AW_MPI_ISP_SetAeMinMaxExp'
sample_virvi2vo.c.text.startup.main+0x1668): undefined reference to `AW_MPI_ISP_GetAeMinMaxExp'
collect2: error: ld returned 1 exit status