Problem about libnet on FreeBSD 6.0

[prime]

Hi hackers,
   I find that I can't include <net/ethernet.h> when I programming
with libnet,because $(CC) complains that "struct ether_addr redefined".
But I need some definitions in <net/ethernet.h>,struct ether_header etc.
Currently,I just copy the definitions I need from <net/ethernet.h>,but
it seems very ugly.Any one has some good ideas?
   Thanks.

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