Some versions of Mac OS X (as it was then called) *did*, in fact, ship
with a libpcap that had pcap_findalldevs() but a pcap.h that didn't
define pcap_if_t; it's not a question of "may ship", it's a fact of "did
ship".
(cherry picked from commit
97c31661edb100fefcf20383f057e25edd7f4e11)
#endif
/*
- * Some older versions of Mac OS X may ship pcap.h from libpcap 0.6 with a
+ * Some older versions of Mac OS X ship pcap.h from libpcap 0.6 with a
* libpcap based on 0.8. That means it has pcap_findalldevs() but the
* header doesn't define pcap_if_t, meaning that we can't actually *use*
* pcap_findalldevs().