netdev - Re: Redefinition of struct in6_addr in <netinet/in.h> and <linux/in6.h>

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Date:	Thu, 17 Jan 2013 11:40:46 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Mike Frysinger <vapier@...too.org>
Cc:	David Miller <davem@...emloft.net>, bhutchings@...arflare.com,
	libc-alpha@...rceware.org, yoshfuji@...ux-ipv6.org, tmb@...eia.org,
	eblake@...hat.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, libvirt-list@...hat.com,
	tgraf@...g.ch, schwab@...e.de, carlos@...temhalted.org
Subject: Re: Redefinition of struct in6_addr in <netinet/in.h> and
 <linux/in6.h>

On Wed, 2013-01-16 at 14:22 -0500, Mike Frysinger wrote:
> 
> but this is still too vague.  what headers/definitions do people want to see 
> simultaneously included ?  changes would be needed on both sides (kernel & C 
> library).
> 

Hi, Mike,

Please take a look at my first email in this thread. The user
application includes <linux/if_bridge.h> and <netinet/in.h>.

<linux/if_bridge.h> uses struct_in6 but doesn't include <linux/in6.h>
(this is my bad, sorry), an obvious fix is just including <linux/in6.h>.
But this immediately breaks applications which include
<linux/if_bridge.h> and <netinet/in.h>, just as what Thomas reported.

And if_bridge.h is kernel-specific, there is no corresponding glibc one,
so you can't blame applications which include both of them.

Thanks.

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