CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /Users/jenkins/w/cci_PR-4384/.conan/data/librdkafka/1.3.0/_/_/build/e7efbacf07f9d5078daa804a718a183deffc3e53/source_subfolder/src/tinycthread.c:199:5: warning: 'timespec_get' is only available on macOS 10.15 or newer [-Wunguarded-availability-new] timespec_get(&cur, TIME_UTC); ^~~~~~~~~~~~ /Applications/Xcode-11.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include/time.h:199:5: note: 'timespec_get' has been marked as being introduced in macOS 10.15 here, but the deployment target is macOS 10.14.0 int timespec_get(struct timespec *ts, int base); ^ /Users/jenkins/w/cci_PR-4384/.conan/data/librdkafka/1.3.0/_/_/build/e7efbacf07f9d5078daa804a718a183deffc3e53/source_subfolder/src/tinycthread.c:199:5: note: enclose 'timespec_get' in a __builtin_available check to silence this warning timespec_get(&cur, TIME_UTC); ^~~~~~~~~~~~ 1 warning generated. CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY