CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY protobuf_BUILD_LIBPROTOC g++: internal compiler error: Terminated (program cc1plus) Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/__/src/google/protobuf/stubs/statusor.cc.o] Error 4 make[2]: *** Waiting for unfinished jobs.... g++: internal compiler error: Terminated (program cc1plus) Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/__/src/google/protobuf/stubs/structurally_valid.cc.o] Error 4 make[2]: *** Waiting for unfinished jobs.... make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/__/src/google/protobuf/stubs/strutil.cc.o] Terminated make[1]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/all] Terminated make[1]: *** Waiting for unfinished jobs.... g++: internal compiler error: Terminated (program cc1plus) Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/__/src/google/protobuf/stubs/status.cc.o] Error 4 make[1]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/all] Error 2 make: *** [all] Error 2 protobuf/3.9.1: ERROR: Package '3b345617ce2bd705ca33e4a8969fc7eb031ea30a' build failed protobuf/3.9.1: WARN: Build folder /home/conan/w/cci_PR-2037/.conan/data/protobuf/3.9.1/_/_/build/3b345617ce2bd705ca33e4a8969fc7eb031ea30a ERROR: Exiting with code: 5