Ignoring Boost restriction on optional lvalue assignment from rvalues
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
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/home/conan/w/cci_PR-4154/.conan/data/gtsam/4.0.2/_/_/build/abd516406af8eabcf9b11d9fc05ab2f4f1b3bfc1/source_subfolder/gtsam/linear/GaussianBayesNet.cpp:197:34: warning: 'ptr_fun<double, double>' is deprecated [-Wdeprecated-declarations]
        logDet += diag.unaryExpr(ptr_fun<double,double>(log)).sum();
                                 ^
/usr/lib/llvm-9/bin/../include/c++/v1/functional:1100:1: note: 'ptr_fun<double, double>' has been explicitly marked deprecated here
_LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY
^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:944:39: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX11'
#  define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED
                                      ^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:933:48: note: expanded from macro '_LIBCPP_DEPRECATED'
#    define _LIBCPP_DEPRECATED __attribute__ ((deprecated))
                                               ^
/home/conan/w/cci_PR-4154/.conan/data/gtsam/4.0.2/_/_/build/abd516406af8eabcf9b11d9fc05ab2f4f1b3bfc1/source_subfolder/gtsam/linear/GaussianBayesNet.cpp:199:48: warning: 'ptr_fun<double, double>' is deprecated [-Wdeprecated-declarations]
        logDet += cg->R().diagonal().unaryExpr(ptr_fun<double,double>(log)).sum();
                                               ^
/usr/lib/llvm-9/bin/../include/c++/v1/functional:1100:1: note: 'ptr_fun<double, double>' has been explicitly marked deprecated here
_LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY
^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:944:39: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX11'
#  define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED
                                      ^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:933:48: note: expanded from macro '_LIBCPP_DEPRECATED'
#    define _LIBCPP_DEPRECATED __attribute__ ((deprecated))
                                               ^
2 warnings generated.
/home/conan/w/cci_PR-4154/.conan/data/gtsam/4.0.2/_/_/build/abd516406af8eabcf9b11d9fc05ab2f4f1b3bfc1/source_subfolder/gtsam/linear/GaussianBayesTree.cpp:43:38: warning: 'ptr_fun<double, double>' is deprecated [-Wdeprecated-declarations]
                     .unaryExpr(std::ptr_fun<double, double>(log))
                                     ^
/usr/lib/llvm-9/bin/../include/c++/v1/functional:1100:1: note: 'ptr_fun<double, double>' has been explicitly marked deprecated here
_LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY
^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:944:39: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX11'
#  define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED
                                      ^
/usr/lib/llvm-9/bin/../include/c++/v1/__config:933:48: note: expanded from macro '_LIBCPP_DEPRECATED'
#    define _LIBCPP_DEPRECATED __attribute__ ((deprecated))
                                               ^
1 warning generated.
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY