If you add GV_ADD in place of the 0 as the second argument to get_sv(), then you shouldn't need to pre-declare or initialise MyModule::CONSTANT_NAME in the Perl code, as it will be created for you.

As for caveats with regard to threading; as it is a constant, there should be none.

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In reply to Re: XS: exposing C++ library constant as package variable by BrowserUk
in thread XS: exposing C++ library constant as package variable by wisnij

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