net/if_arp.h - standard header?

[Nathan Hartman]

I have a program that builds under Linux, BSD, and macOS which
includes the net/if_arp.h header.

This header does not seem to exist under NuttX.

It is included for the ARPHRD_ETHER define (and possibly other things).

I see that under NuttX, this is defined in net/arp.h, rather than net/if_arp.h.

Is net/if_arp.h supposed to be a standard header? I cannot seem to
find any meaningful information about it.

Thanks,
Nathan