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_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS SOCI_DB2 SOCI_FIREBIRD SOCI_MYSQL SOCI_ODBC SOCI_ORACLE SOCI_POSTGRESQL ** The compiler supports C++17 -- Conan libs: fmtd;soci_empty;soci_core;soci_sqlite3;sqlite3;pthread;dl -- Conan libs: fmtd;soci_empty;soci_core;soci_sqlite3;sqlite3;pthread;dl -- Conan libs: fmtd;soci_empty;soci_core;soci_sqlite3;sqlite3;pthread;dl CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /usr/bin/ld: CMakeFiles/conan.soci.empty.tests.dir/empty.test.cpp.o: in function `__cxx_global_var_init.2': /home/conan/w/cci_PR-3924/4/b3d27b01-820b-400c-be89-becfe7cc89aa/recipes/soci/all/test_package/empty/empty.test.cpp:9: 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]: *** [empty/CMakeFiles/conan.soci.empty.tests.dir/build.make:104: empty/conan.soci.empty.tests] Error 1 make[1]: *** [CMakeFiles/Makefile2:144: empty/CMakeFiles/conan.soci.empty.tests.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... /usr/bin/ld: CMakeFiles/conan.soci.sqlite3.tests.dir/sqlite3.test.cpp.o: in function `__cxx_global_var_init.2': /home/conan/w/cci_PR-3924/4/b3d27b01-820b-400c-be89-becfe7cc89aa/recipes/soci/all/test_package/sqlite3/sqlite3.test.cpp:14: undefined reference to `soci::session::session(soci::backend_factory const&, std::__1::basic_string, std::__1::allocator > const&)' /usr/bin/ld: CMakeFiles/conan.soci.sqlite3.tests.dir/sqlite3.test.cpp.o: in function `void soci::details::ref_counted_statement_base::accumulate, std::__1::allocator > >(std::__1::basic_string, std::__1::allocator > const&)': /home/conan/w/cci_PR-3924/.conan/data/soci/4.0.1/_/_/package/db18a291f8d4c0a78a5ce12b382e50b5338f0406/include/soci/ref-counted-statement.h:58: undefined reference to `soci::details::ref_counted_statement_base::get_query_stream()' clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [sqlite3/CMakeFiles/conan.soci.sqlite3.tests.dir/build.make:104: sqlite3/conan.soci.sqlite3.tests] Error 1 make[1]: *** [CMakeFiles/Makefile2:171: sqlite3/CMakeFiles/conan.soci.sqlite3.tests.dir/all] Error 2 make: *** [Makefile:95: all] Error 2 [HOOK - conan-center.py] pre_export(): WARN: [FPIC OPTION (KB-H006)] This recipe does not include an 'fPIC' option. Make sure you are using the right casing ERROR: soci/4.0.1 (test package): Error in build() method, line 29 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-3924/4/b3d27b01-820b-400c-be89-becfe7cc89aa/recipes/soci/all/test_package/build/cc24e14d768b66dda7f6da8a674abd028a7c9cfb' '--' '-j3'