CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY PAHO_BUILD_SHARED CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /usr/bin/ld: cannot find -lpaho-mqtt3as clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [CMakeFiles/test_package.dir/build.make:105: bin/test_package] Error 1 make[1]: *** [CMakeFiles/Makefile2:95: CMakeFiles/test_package.dir/all] Error 2 make: *** [Makefile:103: all] Error 2 ERROR: paho-mqtt-c/1.3.1 (test package): Error in build() method, line 14 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4356/1/3bc53bd4-5b39-4d53-a898-4235e2a11422/recipes/paho-mqtt-c/all/test_package/build/0a66af717cf06d8b9e8d9b24f05774bfe134eb4c' '--' '-j3'