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Test steps
/usr/bin/ld: CMakeFiles/test-backend-ops.dir/test-backend-ops.cpp.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
/usr/bin/ld: /lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status