#error This header is deprecated and will be removed.

[l29ah]

boost 1.88.0 here, the only version shipped by Gentoo

FAILED: [code=1] CMakeFiles/area.dir/PythonStuff.cpp.o 
/usr/lib/ccache/bin/x86_64-pc-linux-gnu-g++ -DBOOST_CONTAINER_DYN_LINK -DBOOST_CONTAINER_NO_LIB -DBOOST_GRAPH_DYN_LINK -DBOOST_GRAPH_NO_LIB -DBOOST_PYTHON_DYN_LINK -DBOOST_PYTHON_NO_LIB -Darea_EXPORTS -I/usr/include/python3.13 -I/var/tmp/portage/sci-libs/libarea-9999/work/libarea-9999 -I/var/tmp/portage/sci-libs/libarea-9999/work/libarea-9999/kurve -I/var/tmp/portage/sci-libs/libarea-9999/work/libarea-9999/kbool/src  -O2 -pipe -march=skylake -mtune=native -ftree-vectorize -malign-data=cacheline -mtls-dialect=gnu2 -fPIC -MD -MT CMakeFiles/area.dir/PythonStuff.cpp.o -MF CMakeFiles/area.dir/PythonStuff.cpp.o.d -o CMakeFiles/area.dir/PythonStuff.cpp.o -c /var/tmp/portage/sci-libs/libarea-9999/work/libarea-9999/PythonStuff.cpp
In file included from /var/tmp/portage/sci-libs/libarea-9999/work/libarea-9999/PythonStuff.cpp:24:
/usr/include/boost/progress.hpp:23:3: error: #error This header is deprecated and will be removed. (You can define BOOST_TIMER_ENABLE_DEPRECATED to suppress this error.)
   23 | # error This header is deprecated and will be removed. (You can define BOOST_TIMER_ENABLE_DEPRECATED to suppress this error.)
      |   ^~~~~
In file included from /usr/include/boost/progress.hpp:29:
/usr/include/boost/timer.hpp:21:3: error: #error This header is deprecated and will be removed. (You can define BOOST_TIMER_ENABLE_DEPRECATED to suppress this error.)
   21 | # error This header is deprecated and will be removed. (You can define BOOST_TIMER_ENABLE_DEPRECATED to suppress this error.)
      |   ^~~~~
In file included from /usr/include/boost/config/header_deprecated.hpp:18,
                 from /usr/include/boost/progress.hpp:26:
/usr/include/boost/progress.hpp:27:1: note: ‘#pragma message: This header is deprecated. Use the facilities in <boost/timer/timer.hpp> or <boost/timer/progress_display.hpp> instead.’
   27 | BOOST_HEADER_DEPRECATED( "the facilities in <boost/timer/timer.hpp> or <boost/timer/progress_display.hpp>" )
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/boost/timer.hpp:25:1: note: ‘#pragma message: This header is deprecated. Use the facilities in <boost/timer/timer.hpp> instead.’
   25 | BOOST_HEADER_DEPRECATED( "the facilities in <boost/timer/timer.hpp>" )
      | ^~~~~~~~~~~~~~~~~~~~~~~
ninja: build stopped: subcommand failed.