| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::chrono::system_clock::now()'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_ostream<char, std::__1::char_traits<char> >::operator<<(short)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_streambuf<char, std::__1::char_traits<char> >::imbue(std::__1::locale const&)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::append(char const*)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::thread::~thread()'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::assign(char const*, unsigned long)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_ostream<char, std::__1::char_traits<char> >::flush()'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::insert(unsigned long, char const*, unsigned long)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::resize(unsigned long, char)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&)'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::compare(unsigned long, unsigned long, char const*) const'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_streambuf<char, std::__1::char_traits<char> >::sync()'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_streambuf<char, std::__1::char_traits<char> >::basic_streambuf()'
| /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-fslc-linux/../../libexec/aarch64-fslc-linux/gcc/aarch64-fslc-linux/9.3.0/ld: /opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0/recipe-sysroot/usr/lib/libedgetpu.so: undefined reference to `std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)'
| collect2: error: ld returned 1 exit status
| make: *** [Makefile:103: build] Error 1
| make: Leaving directory '/opt/imx-coral-dev-board/build/tmp/work/aarch64-fslc-linux/test-engine/1.0-r0'
| WARNING: exit code 1 from a shell command.