You add small compatibility macros. Which most openssl code already had. We still have to support openssl back to 0.9.8, so this isn't out of the ordinary. See

You add small compatibility macros. Which most openssl code already had. We still have to support openssl back to 0.9.8, so this isn't out of the ordinary. See https://github.com/wahern/luaossl/blob/master/src/openssl.c#L1243 https://github.com/wahern/luaossl/blob/master/src/openssl.c#... for all the compatible wrappers we have