games/freeorion: unbreak with boost 1.72

GG/src/Texture.cpp:232:25: error: no template named 'vector4' in namespace 'boost::mpl'

typedef boost::mpl::vector4<
        ~~~~~~~~~~~~^

In file included from GG/src/Texture.cpp:32:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:11:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image_view.hpp:17:
In file included from /usr/local/include/boost/variant.hpp:17:
/usr/local/include/boost/variant/variant.hpp:2416:5: error: static_assert failed due to requirement '::boost::mpl::is_sequence<int>::value' "( ::boost::mpl::is_sequence<Types>::value )"

BOOST_STATIC_ASSERT(( ::boost::mpl::is_sequence<Types>::value ));
^                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/usr/local/include/boost/static_assert.hpp:70:41: note: expanded from macro 'BOOST_STATIC_ASSERT'

1. define BOOST_STATIC_ASSERT( ... ) static_assert(VA_ARGS, #__VA_ARGS__) ^ ~~~~~~~~~~~

/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:88:26: note: in instantiation of template class 'boost::make_variant_over<int>' requested here
class any_image : public make_variant_over<Images>::type

^

GG/src/Texture.cpp:247:15: note: in instantiation of template class 'boost::gil::any_image<int>' requested here

ImageType image;
          ^

In file included from GG/src/Texture.cpp:32:
/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:90:58: error: no type named 'type' in 'boost::make_variant_over<int>'

using parent_t = typename make_variant_over<Images>::type;
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~

GG/src/Texture.cpp:247:15: note: in instantiation of template class 'boost::gil::any_image<int>' requested here

ImageType image;
          ^

In file included from GG/src/Texture.cpp:32:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:11:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image_view.hpp:12:
In file included from /usr/local/include/boost/gil/image.hpp:11:
In file included from /usr/local/include/boost/gil/algorithm.hpp:11:
In file included from /usr/local/include/boost/gil/bit_aligned_pixel_iterator.hpp:11:
In file included from /usr/local/include/boost/gil/bit_aligned_pixel_reference.hpp:12:
In file included from /usr/local/include/boost/gil/pixel.hpp:12:
In file included from /usr/local/include/boost/gil/channel.hpp:11:
In file included from /usr/local/include/boost/gil/utilities.hpp:11:
In file included from /usr/local/include/boost/gil/detail/mp11.hpp:12:
In file included from /usr/local/include/boost/mp11.hpp:11:
/usr/local/include/boost/mp11/list.hpp:45:19: error: no type named 'type' in 'boost::mp11::detail::mp_size_impl<int>'
template<class L> using mp_size = typename detail::mp_size_impl<L>::type;

^~~~~

/usr/local/include/boost/mp11/algorithm.hpp:121:50: note: in instantiation of template type alias 'mp_size' requested here
template<template<class...> class F, class... L> using mp_transform = typename mp_if<mp_same<mp_size<L>...>, detail::mp_transform_impl<F, L...>, detail::list_size_mismatch>::type;

^

/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:33:1: note: in instantiation of template type alias 'mp_transform' requested here
using images_get_views_t = mp11::mp_transform<get_view_t, Images>;
^
/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:92:43: note: in instantiation of template type alias 'images_get_views_t' requested here

using view_t = any_image_view<detail::images_get_views_t<Images>>;
                                      ^

GG/src/Texture.cpp:247:15: note: in instantiation of template class 'boost::gil::any_image<int>' requested here

ImageType image;
          ^

In file included from GG/src/Texture.cpp:32:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:11:
In file included from /usr/local/include/boost/gil/extension/dynamic_image/any_image_view.hpp:12:
In file included from /usr/local/include/boost/gil/image.hpp:11:
In file included from /usr/local/include/boost/gil/algorithm.hpp:11:
In file included from /usr/local/include/boost/gil/bit_aligned_pixel_iterator.hpp:11:
In file included from /usr/local/include/boost/gil/bit_aligned_pixel_reference.hpp:12:
In file included from /usr/local/include/boost/gil/pixel.hpp:12:
In file included from /usr/local/include/boost/gil/channel.hpp:11:
In file included from /usr/local/include/boost/gil/utilities.hpp:11:
In file included from /usr/local/include/boost/gil/detail/mp11.hpp:12:
In file included from /usr/local/include/boost/mp11.hpp:11:
/usr/local/include/boost/mp11/list.hpp:45:19: error: no type named 'type' in 'boost::mp11::detail::mp_size_impl<int>'
template<class L> using mp_size = typename detail::mp_size_impl<L>::type;

^~~~~

/usr/local/include/boost/mp11/algorithm.hpp:121:50: note: in instantiation of template type alias 'mp_size' requested here
template<template<class...> class F, class... L> using mp_transform = typename mp_if<mp_same<mp_size<L>...>, detail::mp_transform_impl<F, L...>, detail::list_size_mismatch>::type;

^

/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:39:1: note: in instantiation of template type alias 'mp_transform' requested here
using images_get_const_views_t = mp11::mp_transform<get_const_view_t, Images>;
^
/usr/local/include/boost/gil/extension/dynamic_image/any_image.hpp:93:49: note: in instantiation of template type alias 'images_get_const_views_t' requested here

using const_view_t = any_image_view<detail::images_get_const_views_t<Images>>;
                                            ^

GG/src/Texture.cpp:247:15: note: in instantiation of template class 'boost::gil::any_image<int>' requested here

ImageType image;
          ^

Obtained from: upstream