[Buildroot] error building busybox usring Buildroot

hello?all?
    I'm currently using BuildRoot to build a nice integrated development environment.
    

    Basic information is as follows:

        ARCH: mips

        CROSS compiler ver : 5.4.0  , is external

        Buildroot ver : Latest stable release: 2021.05






    An error occurred when I went to the BusyBox Building:

        Toolschain/Ingenic/mips-gcc540-glibc222-64bit-r3.3.0/lib/gcc/mips-linux-gnu/5.4.0/include-fixed/uclibc/soft-float/limits.h:168:61: fatal error: limits.h: No such file or directory



    Oddly, this is correct when I compile BusyBox directly from the command line in the same directory  


    I wonder if the parameter Settings in buildroot are causing this error, but I can't confirm where.
    

Please see the attachment for the detailed log.

Thanks! 


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hanlei_acoin at 163.com
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