CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY In file included from /home/conan/w/cci_PR-3408/.conan/data/spdlog/1.5.0/_/_/build/e2474cee9b1d9b8a744f0bbb06b848f38dfde269/source_subfolder/src/color_sinks.cpp:24: /home/conan/w/cci_PR-3408/.conan/data/spdlog/1.5.0/_/_/build/e2474cee9b1d9b8a744f0bbb06b848f38dfde269/source_subfolder/include/spdlog/sinks/ansicolor_sink-inl.h:114:53: warning: 'char_type' is deprecated [-Wdeprecated-declarations] fwrite(color_code.data(), sizeof(string_view_t::char_type), color_code.size(), target_file_); ^ /home/conan/w/cci_PR-3408/.conan/data/fmt/6.2.1/_/_/package/15d8ae16a02229b9d0a5fa05f7498a843f98f840/include/fmt/core.h:357:9: note: 'char_type' has been explicitly marked deprecated here using char_type FMT_DEPRECATED_ALIAS = Char; ^ 1 warning generated. CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY