APTPKG_@MAJOR@
{
global:
    *;
local:
    extern "C++" {
        std::*;
        typeinfo?for?std::*;
        vtable?for?std::*;
        typeinfo?name?for?std::*;
        guard?variable?for?std::*;
        void?std::*;
        bool?std::*;
        __gnu_cxx::*;
    };
};