CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY clang: error: unable to execute command: Terminated: 15 clang: error: clang frontend command failed due to signal (use -v to see invocation) Apple clang version 11.0.0 (clang-1100.0.33.8) Target: x86_64-apple-darwin18.7.0 Thread model: posix InstalledDir: /Applications/Xcode-11.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script. make[2]: *** wait: Interrupted system call. Stop. make[2]: *** Waiting for unfinished jobs.... make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/__/src/google/protobuf/io/zero_copy_stream_impl.cc.o] Terminated: 15 make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/__/src/google/protobuf/extension_set.cc.o] Terminated: 15 make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/__/src/google/protobuf/generated_message_util.cc.o] Terminated: 15 make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/__/src/google/protobuf/generated_message_table_driven_lite.cc.o] Terminated: 15 make[2]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/__/src/google/protobuf/extension_set.cc.o] Terminated: 15 make[2]: *** make[1]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf-lite.dir/all] Error 2 make[1]: *** [source_subfolder/cmake/CMakeFiles/libprotobuf.dir/all] Terminated: 15 make: *** [all] Terminated: 15 ERROR: Exiting with code: 5