-- The CXX compiler identification is Clang 10.0.0 -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Found OpenSSL: /usr/lib/x86_64-linux-gnu/libcrypto.so (found version "1.1.1d") -- Found PythonInterp: /usr/bin/python (found version "2.7.16") -- No build type selected, default is Release -- The C compiler identification is Clang 10.0.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Auto-configuring bsoncxx to use C++17 std library polyfills since C++17 is active and user didn't specify otherwise bsoncxx version: 3.6.0 found libbson version 1.17.2-pre -- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY -- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY - Success -- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY -- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY - Success mongocxx version: 3.6.0 found libmongoc version 1.17.2-pre -- Looking for C++ include pthread.h -- Looking for C++ include pthread.h - found -- Performing Test CMAKE_HAVE_LIBC_PTHREAD -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed -- Check if compiler accepts -pthread -- Check if compiler accepts -pthread - yes -- Found Threads: TRUE -- Build files generated for: -- build system: Unix Makefiles -- Configuring done -- Generating done -- Build files have been written to: /home/gho/code/mongo-cxx-driver/build