"clang++-17"   -fvisibility-inlines-hidden -Wno-c99-extensions -std=c++20 -Wall -Wextra -fPIC -pthread -O0 -fno-inline -Wall -fvisibility=hidden -m64 --target=x86_64-pc-linux -ftemplate-depth-255 -DBOOST_ALL_NO_LIB=1 -DBOOST_ARCHIVE_TEST=xml_archive.hpp -DBOOST_COBALT_USE_STD_PMR=1 -DBOOST_LIB_DIAGNOSTIC=1 -DBOOST_SERIALIZATION_DYN_LINK=1 -DBOOST_WSERIALIZATION_DYN_LINK=1   -I".."  -c -o "/var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_variant.o" "../libs/serialization/test/test_variant.cpp"

In file included from ../libs/serialization/test/test_variant.cpp:161:
../boost/serialization/variant.hpp:221:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    if(which >=  sizeof...(Types)){
       ~~~~~ ^   ~~~~~~~~~~~~~~~~
../boost/serialization/split_free.hpp:57:9: note: in instantiation of function template specialization 'boost::serialization::load<boost::archive::xml_iarchive, bool, int, float, double, A, std::basic_string<char>>' requested here
        load(ar, t, v);
        ^
../boost/serialization/split_free.hpp:72:12: note: in instantiation of member function 'boost::serialization::free_loader<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>::invoke' requested here
    typex::invoke(ar, t, file_version);
           ^
../boost/serialization/variant.hpp:271:27: note: in instantiation of function template specialization 'boost::serialization::split_free<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    boost::serialization::split_free(ar,v,file_version);
                          ^
../boost/serialization/serialization.hpp:109:5: note: in instantiation of function template specialization 'boost::serialization::serialize<boost::archive::xml_iarchive, bool, int, float, double, A, std::basic_string<char>>' requested here
    serialize(ar, t, v);
    ^
../boost/archive/detail/iserializer.hpp:189:27: note: in instantiation of function template specialization 'boost::serialization::serialize_adl<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    boost::serialization::serialize_adl(
                          ^
../boost/archive/detail/iserializer.hpp:413:17: note: (skipping 5 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
                boost::serialization::singleton<
                ^
../boost/archive/xml_iarchive.hpp:95:38: note: in instantiation of function template specialization 'boost::archive::basic_xml_iarchive<boost::archive::xml_iarchive>::load_override<boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
        basic_xml_iarchive<Archive>::load_override(t);
                                     ^
../boost/archive/detail/interface_iarchive.hpp:68:23: note: in instantiation of function template specialization 'boost::archive::xml_iarchive_impl<boost::archive::xml_iarchive>::load_override<const boost::serialization::nvp<boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>>' requested here
        this->This()->load_override(t);
                      ^
../libs/serialization/test/test_variant.cpp:130:16: note: in instantiation of function template specialization 'boost::archive::detail::interface_iarchive<boost::archive::xml_iarchive>::operator>><const boost::serialization::nvp<boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>>' requested here
            ia >> boost::serialization::make_nvp("written", vx);
               ^
../libs/serialization/test/test_variant.cpp:146:5: note: in instantiation of function template specialization 'test_type<boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    test_type(v);
    ^
../libs/serialization/test/test_variant.cpp:178:9: note: in instantiation of function template specialization 'test<boost::variant2::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
        test(v);
        ^
In file included from ../libs/serialization/test/test_variant.cpp:161:
../boost/serialization/variant.hpp:221:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    if(which >=  sizeof...(Types)){
       ~~~~~ ^   ~~~~~~~~~~~~~~~~
../boost/serialization/split_free.hpp:57:9: note: in instantiation of function template specialization 'boost::serialization::load<boost::archive::xml_iarchive, bool, int, float, double, const A *, std::basic_string<char>>' requested here
        load(ar, t, v);
        ^
../boost/serialization/split_free.hpp:72:12: note: in instantiation of member function 'boost::serialization::free_loader<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>::invoke' requested here
    typex::invoke(ar, t, file_version);
           ^
../boost/serialization/variant.hpp:271:27: note: in instantiation of function template specialization 'boost::serialization::split_free<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
    boost::serialization::split_free(ar,v,file_version);
                          ^
../boost/serialization/serialization.hpp:109:5: note: in instantiation of function template specialization 'boost::serialization::serialize<boost::archive::xml_iarchive, bool, int, float, double, const A *, std::basic_string<char>>' requested here
    serialize(ar, t, v);
    ^
../boost/archive/detail/iserializer.hpp:189:27: note: in instantiation of function template specialization 'boost::serialization::serialize_adl<boost::archive::xml_iarchive, boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
    boost::serialization::serialize_adl(
                          ^
../boost/archive/detail/iserializer.hpp:413:17: note: (skipping 4 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
                boost::serialization::singleton<
                ^
../boost/archive/basic_xml_iarchive.hpp:78:39: note: in instantiation of function template specialization 'boost::archive::detail::common_iarchive<boost::archive::xml_iarchive>::load_override<boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        this->detail_common_iarchive::load_override(t.value());
                                      ^
../boost/archive/xml_iarchive.hpp:95:38: note: in instantiation of function template specialization 'boost::archive::basic_xml_iarchive<boost::archive::xml_iarchive>::load_override<boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        basic_xml_iarchive<Archive>::load_override(t);
                                     ^
../boost/archive/detail/interface_iarchive.hpp:68:23: note: in instantiation of function template specialization 'boost::archive::xml_iarchive_impl<boost::archive::xml_iarchive>::load_override<const boost::serialization::nvp<boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>>' requested here
        this->This()->load_override(t);
                      ^
../libs/serialization/test/test_variant.cpp:130:16: note: in instantiation of function template specialization 'boost::archive::detail::interface_iarchive<boost::archive::xml_iarchive>::operator>><const boost::serialization::nvp<boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>>' requested here
            ia >> boost::serialization::make_nvp("written", vx);
               ^
../libs/serialization/test/test_variant.cpp:181:9: note: in instantiation of function template specialization 'test_type<boost::variant2::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        test_type(v1);
        ^
In file included from ../libs/serialization/test/test_variant.cpp:161:
../boost/serialization/variant.hpp:243:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    if(which >=  sizeof...(Types)){
       ~~~~~ ^   ~~~~~~~~~~~~~~~~
../boost/serialization/split_free.hpp:57:9: note: in instantiation of function template specialization 'boost::serialization::load<boost::archive::xml_iarchive, bool, int, float, double, A, std::basic_string<char>>' requested here
        load(ar, t, v);
        ^
../boost/serialization/split_free.hpp:72:12: note: in instantiation of member function 'boost::serialization::free_loader<boost::archive::xml_iarchive, std::variant<bool, int, float, double, A, std::basic_string<char>>>::invoke' requested here
    typex::invoke(ar, t, file_version);
           ^
../boost/serialization/variant.hpp:282:27: note: in instantiation of function template specialization 'boost::serialization::split_free<boost::archive::xml_iarchive, std::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    boost::serialization::split_free(ar,v,file_version);
                          ^
../boost/serialization/serialization.hpp:109:5: note: in instantiation of function template specialization 'boost::serialization::serialize<boost::archive::xml_iarchive, bool, int, float, double, A, std::basic_string<char>>' requested here
    serialize(ar, t, v);
    ^
../boost/archive/detail/iserializer.hpp:189:27: note: in instantiation of function template specialization 'boost::serialization::serialize_adl<boost::archive::xml_iarchive, std::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    boost::serialization::serialize_adl(
                          ^
../boost/archive/detail/iserializer.hpp:413:17: note: (skipping 5 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
                boost::serialization::singleton<
                ^
../boost/archive/xml_iarchive.hpp:95:38: note: in instantiation of function template specialization 'boost::archive::basic_xml_iarchive<boost::archive::xml_iarchive>::load_override<std::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
        basic_xml_iarchive<Archive>::load_override(t);
                                     ^
../boost/archive/detail/interface_iarchive.hpp:68:23: note: in instantiation of function template specialization 'boost::archive::xml_iarchive_impl<boost::archive::xml_iarchive>::load_override<const boost::serialization::nvp<std::variant<bool, int, float, double, A, std::basic_string<char>>>>' requested here
        this->This()->load_override(t);
                      ^
../libs/serialization/test/test_variant.cpp:130:16: note: in instantiation of function template specialization 'boost::archive::detail::interface_iarchive<boost::archive::xml_iarchive>::operator>><const boost::serialization::nvp<std::variant<bool, int, float, double, A, std::basic_string<char>>>>' requested here
            ia >> boost::serialization::make_nvp("written", vx);
               ^
../libs/serialization/test/test_variant.cpp:146:5: note: in instantiation of function template specialization 'test_type<std::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
    test_type(v);
    ^
../libs/serialization/test/test_variant.cpp:189:9: note: in instantiation of function template specialization 'test<std::variant<bool, int, float, double, A, std::basic_string<char>>>' requested here
        test(v);
        ^
In file included from ../libs/serialization/test/test_variant.cpp:161:
../boost/serialization/variant.hpp:243:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    if(which >=  sizeof...(Types)){
       ~~~~~ ^   ~~~~~~~~~~~~~~~~
../boost/serialization/split_free.hpp:57:9: note: in instantiation of function template specialization 'boost::serialization::load<boost::archive::xml_iarchive, bool, int, float, double, const A *, std::basic_string<char>>' requested here
        load(ar, t, v);
        ^
../boost/serialization/split_free.hpp:72:12: note: in instantiation of member function 'boost::serialization::free_loader<boost::archive::xml_iarchive, std::variant<bool, int, float, double, const A *, std::basic_string<char>>>::invoke' requested here
    typex::invoke(ar, t, file_version);
           ^
../boost/serialization/variant.hpp:282:27: note: in instantiation of function template specialization 'boost::serialization::split_free<boost::archive::xml_iarchive, std::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
    boost::serialization::split_free(ar,v,file_version);
                          ^
../boost/serialization/serialization.hpp:109:5: note: in instantiation of function template specialization 'boost::serialization::serialize<boost::archive::xml_iarchive, bool, int, float, double, const A *, std::basic_string<char>>' requested here
    serialize(ar, t, v);
    ^
../boost/archive/detail/iserializer.hpp:189:27: note: in instantiation of function template specialization 'boost::serialization::serialize_adl<boost::archive::xml_iarchive, std::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
    boost::serialization::serialize_adl(
                          ^
../boost/archive/detail/iserializer.hpp:413:17: note: (skipping 4 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
                boost::serialization::singleton<
                ^
../boost/archive/basic_xml_iarchive.hpp:78:39: note: in instantiation of function template specialization 'boost::archive::detail::common_iarchive<boost::archive::xml_iarchive>::load_override<std::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        this->detail_common_iarchive::load_override(t.value());
                                      ^
../boost/archive/xml_iarchive.hpp:95:38: note: in instantiation of function template specialization 'boost::archive::basic_xml_iarchive<boost::archive::xml_iarchive>::load_override<std::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        basic_xml_iarchive<Archive>::load_override(t);
                                     ^
../boost/archive/detail/interface_iarchive.hpp:68:23: note: in instantiation of function template specialization 'boost::archive::xml_iarchive_impl<boost::archive::xml_iarchive>::load_override<const boost::serialization::nvp<std::variant<bool, int, float, double, const A *, std::basic_string<char>>>>' requested here
        this->This()->load_override(t);
                      ^
../libs/serialization/test/test_variant.cpp:130:16: note: in instantiation of function template specialization 'boost::archive::detail::interface_iarchive<boost::archive::xml_iarchive>::operator>><const boost::serialization::nvp<std::variant<bool, int, float, double, const A *, std::basic_string<char>>>>' requested here
            ia >> boost::serialization::make_nvp("written", vx);
               ^
../libs/serialization/test/test_variant.cpp:192:9: note: in instantiation of function template specialization 'test_type<std::variant<bool, int, float, double, const A *, std::basic_string<char>>>' requested here
        test_type(v1);
        ^
4 warnings generated.
            

    "clang++-17"  -Wl,-rpath -Wl,"/var/boost/run/results/boost/bin.v2/libs/serialization/build/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden" -Wl,-rpath-link -Wl,"/var/boost/run/results/boost/bin.v2/libs/serialization/build/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden" -o "/var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_variant_xml_archive" -Wl,--start-group "/var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_variant.o" "/var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/A.o" "/var/boost/run/results/boost/bin.v2/libs/serialization/build/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/libboost_serialization.so.1.87.0"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -fvisibility=hidden -fvisibility-inlines-hidden -m64 --target=x86_64-pc-linux 

/usr/bin/ld: /var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_variant.o: in function `boost::archive::tmpnam(char*)':
test_variant.cpp:(.text+0xf5): undefined reference to `boost::filesystem::detail::path_algorithms::append_v3(boost::filesystem::path&, char const*, char const*)'
/usr/bin/ld: /var/boost/run/results/boost/bin.v2/libs/serialization/test/test_variant_xml_archive.test/clang-linux-17~c++20~warn/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/test_variant.o: in function `boost::filesystem::unique_path(boost::filesystem::path const&)':
test_variant.cpp:(.text._ZN5boost10filesystem11unique_pathERKNS0_4pathE[_ZN5boost10filesystem11unique_pathERKNS0_4pathE]+0x20): undefined reference to `boost::filesystem::detail::unique_path(boost::filesystem::path const&, boost::system::error_code*)'
clang++-17: error: linker command failed with exit code 1 (use -v to see invocation)