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 collect2: error: ld returned 1 exit status 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/cb343ba8-b2e3-4ee9-aa91-001b6beffdf9/recipes/paho-mqtt-c/all/test_package/build/996e8409cda5ae1e6c46de0f28909e40132a86ac' '--' '-j3'