Found the following significant warnings:
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/BH/include/boost/geometry/algorithms/detail/envelope/range.hpp:112:15: warning: ‘*(boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>*)((char*)&state + offsetof(boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >,boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >::m_box.boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> >::m_min_corner)).boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>::m_values[0]’ is used uninitialized [-Wuninitialized]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/BH/include/boost/geometry/algorithms/detail/envelope/range.hpp:112:15: warning: ‘*(boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>*)((char*)&state + offsetof(boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >,boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >::m_box.boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> >::m_min_corner)).boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>::m_values[1]’ is used uninitialized [-Wuninitialized]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/BH/include/boost/geometry/algorithms/detail/envelope/range.hpp:112:15: warning: ‘*(boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>*)((char*)&state + offsetof(boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >,boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >::m_box.boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> >::m_max_corner)).boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>::m_values[0]’ is used uninitialized [-Wuninitialized]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/BH/include/boost/geometry/algorithms/detail/envelope/range.hpp:112:15: warning: ‘*(boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>*)((char*)&state + offsetof(boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >,boost::geometry::strategy::envelope::cartesian<void>::multi_state<boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> > >::m_box.boost::geometry::model::box<boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian> >::m_max_corner)).boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>::m_values[1]’ is used uninitialized [-Wuninitialized]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/wellknown.Rcheck/00install.out’ for details.
* used C++ compiler: ‘g++-12 (Debian 12.2.0-13) 12.2.0’