CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR CONAN_CMAKE_POSITION_INDEPENDENT_CODE CONAN_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS ** SOCI shared: True ** Conan SOCI libs: soci_empty;soci_core CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMakeFiles/soci.tests.dir/shared.test.cpp.o: In function `main': /home/conan/w/cci_PR-3924/10/91a66876-22c2-4e09-8a14-fa38b340c54d/recipes/soci/all/test_package/shared.test.cpp:10: undefined reference to `soci::session::session(soci::backend_factory const&, std::__1::basic_string, std::__1::allocator > const&)' clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [soci.tests] Error 1 make[1]: *** [CMakeFiles/soci.tests.dir/all] Error 2 make: *** [all] Error 2 ERROR: soci/4.0.1 (test package): Error in build() method, line 21 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-3924/10/91a66876-22c2-4e09-8a14-fa38b340c54d/recipes/soci/all/test_package/build/bc70323749028445b079f60373853bd0aedd24a5' '--' '-j3'