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Date: Wed, 16 Jan 2013 13:59:59 -0500 (EST)
Message-Id: <20130116.135959.90676245194307972.davem@davemloft.net>
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Subject: Re: Redefinition of struct in6_addr in <netinet/in.h> and
 <linux/in6.h>
From: David Miller <davem@davemloft.net>
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From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 16 Jan 2013 12:28:39 -0500

> if you're not calling the kernel directly, why are you including the kernel 
> headers ?  what is the problem people are actually trying to address here (and 
> no, "i want to include both headers" is not the answer) ?

When GLIBC doesn't provide it's own definition of some networking
macros or interfaces that the kernel provides, people include the
kernel header.

This has been done for decades, wake up.