2.30.2 fails to compile with GCC-14

[NHOrus]

Found on Gentoo, our bug: https://bugs.gentoo.org/932357

Error:

FAILED: CMakeFiles/_core.dir/extern/root/math/minuit2/src/MnPlot.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DPYBIND11_DETAILED_ERROR_MESSAGES=1 -D_core_EXPORTS -I/var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/inc -isystem /usr/include/python3.12 -isystem /usr/lib/python3.12/site-packages/pybind11/include -O3 -pipe -march=native -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0  -UNDEBUG -std=c++14 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -Werror -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -pedantic -fstrict-aliasing -MD -MT CMakeFiles/_core.dir/extern/root/math/minuit2/src/MnPlot.cxx.o -MF CMakeFiles/_core.dir/extern/root/math/minuit2/src/MnPlot.cxx.o.d -o CMakeFiles/_core.dir/extern/root/math/minuit2/src/MnPlot.cxx.o -c /var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/src/MnPlot.cxx
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/x86_64-pc-linux-gnu/bits/c++allocator.h:33,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/allocator.h:46,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/vector:63,
                 from /var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/inc/Minuit2/MnPlot.h:14,
                 from /var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/src/MnPlot.cxx:10:
In member function ‘void std::__new_allocator<_Tp>::deallocate(_Tp*, size_type) [with _Tp = char]’,
    inlined from ‘static void std::allocator_traits<std::allocator<_Tp1> >::deallocate(allocator_type&, pointer, size_type) [with _Tp = char]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/alloc_traits.h:544:23,
    inlined from ‘std::vector<_Tp, _Alloc>::_M_realloc_append(_Args&& ...)::_Guard::~_Guard() [with _Args = {char}; _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/vector.tcc:616:18,
    inlined from ‘void std::vector<_Tp, _Alloc>::_M_realloc_append(_Args&& ...) [with _Args = {char}; _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/vector.tcc:688:7,
    inlined from ‘void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {char}; _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/vector.tcc:123:21,
    inlined from ‘void std::vector<_Tp, _Alloc>::push_back(value_type&&) [with _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/stl_vector.h:1301:21,
    inlined from ‘void ROOT::Minuit2::MnPlot::operator()(double, double, const std::vector<std::pair<double, double> >&) const’ at /var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/src/MnPlot.cxx:51:18:
/usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/new_allocator.h:172:33: error: ‘void operator delete(void*, std::size_t)’ called on pointer ‘<unknown>’ with nonzero offset [1, 576460752303423489] [-Werror=free-nonheap-object]
  172 |         _GLIBCXX_OPERATOR_DELETE(_GLIBCXX_SIZED_DEALLOC(__p, __n));
      |                                 ^
In member function ‘_Tp* std::__new_allocator<_Tp>::allocate(size_type, const void*) [with _Tp = char]’,
    inlined from ‘static _Tp* std::allocator_traits<std::allocator<_Tp1> >::allocate(allocator_type&, size_type) [with _Tp = char]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/alloc_traits.h:509:28,
    inlined from ‘std::_Vector_base<_Tp, _Alloc>::pointer std::_Vector_base<_Tp, _Alloc>::_M_allocate(std::size_t) [with _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/stl_vector.h:380:33,
    inlined from ‘void std::vector<_Tp, _Alloc>::reserve(size_type) [with _Tp = char; _Alloc = std::allocator<char>]’ at /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/vector.tcc:79:33,
    inlined from ‘void ROOT::Minuit2::MnPlot::operator()(double, double, const std::vector<std::pair<double, double> >&) const’ at /var/tmp/portage/dev-python/iminuit-2.30.1/work/iminuit-2.30.1/extern/root/math/minuit2/src/MnPlot.cxx:50:16:
/usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14/bits/new_allocator.h:151:55: note: returned from ‘void* operator new(std::size_t)’
  151 |         return static_cast<_Tp*>(_GLIBCXX_OPERATOR_NEW(__n * sizeof(_Tp)));
      |                                                       ^