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-4356/1/7d029f20-c279-4a6e-9554-c07517f21d94/recipes/paho-mqtt-c/all/test_package/build/2965af6493237620f80f75907ac7a8e9c9f9fe2d' '--' '-j3'