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
    use_libc++


constexp.y:38.1-25: warning: deprecated directive: ‘%name-prefix "constexpYY"’, use ‘%define api.prefix {constexpYY}’ [-Wdeprecated]
   38 | %name-prefix "constexpYY"
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
      | %define api.prefix {constexpYY}
constexp.y: warning: fix-its can be applied.  Rerun with option '--update'. [-Wother]
/home/conan/w/cci_PR-4284/.conan/data/doxygen/1.8.17/_/_/build/56cf68389f3ff8843e5fbf6b03b901b6af6b5fe6/source_subfolder/src/constexp.y:38.1-25: warning: deprecated directive: ‘%name-prefix "constexpYY"’, use ‘%define api.prefix {constexpYY}’ [-Wdeprecated]
   38 | %name-prefix "constexpYY"
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
      | %define api.prefix {constexpYY}
/home/conan/w/cci_PR-4284/.conan/data/doxygen/1.8.17/_/_/build/56cf68389f3ff8843e5fbf6b03b901b6af6b5fe6/source_subfolder/src/constexp.y: warning: fix-its can be applied.  Rerun with option '--update'. [-Wother]
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CONAN_EXPORTED
    CONAN_IN_LOCAL_CACHE


doxygen/1.8.17 (test package): WARN: compiler setting should be defined.
doxygen/1.8.17 (test package): WARN: build_type setting should be defined.
doxygen/1.8.17 (test package): WARN: compiler setting should be defined.