link error: many undefined references

[xutch]

Firstly, thank the awesome work you did.
I use the opencv-mobile-4.5.3-armlinux.zip in my project. When I build my project, the compiler gives:

/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xa5c): undefined reference to `cv::softdouble::operator==(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xab4): undefined reference to `cv::softdouble::operator+(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xae4): undefined reference to `cv::softdouble::operator==(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xf0c): undefined reference to `cv::softdouble::operator+(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xf3c): undefined reference to `cv::softdouble::operator==(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xf94): undefined reference to `cv::softdouble::operator+(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: smooth.dispatch.cpp:(.text._ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+0xfc4): undefined reference to `cv::softdouble::operator==(cv::softdouble const&) const'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /root/work_space/codes/accv/download/arm/opencv-mobile-4.5.3-armlinux/aarch64-linux-gnu/lib/libopencv_core.a(check.cpp.o): in function `cv::detail::check_failed_MatDepth(int, int, cv::detail::CheckContext const&)':
check.cpp:(.text._ZN2cv6detail21check_failed_MatDepthEiiRKNS0_12CheckContextE+0x40): undefined reference to `std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >::basic_stringstream()'

How to fix it?
my compiler information:

aarch64-linux-gnu-g++ --version

aarch64-linux-gnu-g++ (Debian 8.3.0-2) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

aarch64-linux-gnu-gcc --version

aarch64-linux-gnu-gcc (Debian 8.3.0-2) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Look forward for reply. 😊😊😊😊