b5fde3e0cd
Motivation: b818852cdb0ee56ce3cf939e2faa538d519baabd added support for IP_RECVORIGDSTADDR but did not include any #ifdef statements to ensure its usable at all (which is not the case on MacOS). Modifications: Add #ifdef statements to check for IP_RECVORIGDSTADDR. Result: Compilation works again on MacOS.