Cloning into 'ign-cmake'... Note: checking out 'eac0b654a19dc67c580e8ceab494915efc6ab796'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by performing another checkout. If you want to create a new branch to retain commits you create, you may do so (now or later) by using -b with the checkout command again. Example: git checkout -b CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CONAN_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS -- BUILD WARNINGS -- Cannot build component [eigen3] - Missing: eigen3 - Provide conversions to eigen3 types -- Swig is missing: Language interfaces are disabled. -- END BUILD WARNINGS CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CONAN_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/src/Angle.cc:193:15: warning: ‘std::ostream& ignition::math::v6::operator<<(std::ostream&, const ignition::math::v6::Angle&)’ has not been declared within ignition::math std::ostream &ignition::math::operator<<(std::ostream &_out, const Angle &_a) ^~~~~~~~ In file included from /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/src/Angle.cc:18:0: /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/include/ignition/math/Angle.hh:224:36: note: only here as a friend public: friend std::ostream &operator<<(std::ostream &_out, ^~~~~~~~ /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/src/Angle.cc:200:15: warning: ‘std::istream& ignition::math::v6::operator>>(std::istream&, ignition::math::v6::Angle&)’ has not been declared within ignition::math std::istream &ignition::math::operator>>(std::istream &_in, Angle &_a) ^~~~~~~~ In file included from /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/src/Angle.cc:18:0: /home/conan/w/cci_PR-3215/.conan/data/ignition-math/6.6.0/_/_/build/726c76efd0fe9ecb5a0dc0edcc540bbeacb9cd5f/source_subfolder/include/ignition/math/Angle.hh:231:36: note: only here as a friend public: friend std::istream &operator>>(std::istream &_in, ^~~~~~~~ CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY [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