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Some platforms and compilers do not provide all the required functionality to have a fully functional Boost.DLL. Such compilers are mentioned in this section along with possible workarounds for those limitations.
        Some versions of Android, MinGW
        and ld on Windows platform
        fail to mix __dllexport__
        and weak attributes. This
        leads us to situation, where we must explicitly specify translation unit
        in which BOOST_DLL_ALIAS is
        instantiated, making all other BOOST_DLL_ALIAS
        declarations with that alias name an extern
        variable.
      
        Unit that must hold an instance of BOOST_DLL_ALIAS
        must define BOOST_DLL_FORCE_ALIAS_INSTANTIATION
        before including any of the Boost.DLL library headers.
      
        You may explicitly disable export of weak symbols using BOOST_DLL_FORCE_NO_WEAK_EXPORTS.
        This may be useful for working around linker problems or to test your program
        for compatibility with linkers that do not support exporting weak symbols.
      
        Some platforms ignore section attributes, so that querying for a symbols
        in a specified section using boost::dll::library_info
        may return nothing.
      
        On some platforms dlopen,dlclose and some other functions assume
        that they won't be called concurrently.
      
Platforms that certaly have that issue are FreeBSD, MacOS, iOS.
Platforms that certaly do not have such issue are Windows, Linux+glibc, Android, QNX.
        Other platforms are under question. If you're using one of the platforms
        that are not listed (for example Linux+busybox), you may run the shared_library_concurrent_load_test test
        to detect the issue:
cd boost_folder/libs/dll/test ../../../b2 -a shared_library_concurrent_load_test
If a function is defined inside the class-definition it may be interpreted as always-inline which can lead to the function not being exported at all. This does however differ between between compilers.