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Re: Redefinition of struct in6_addr in <netinet/in.h> and<linux/in6.h>
- From: Ben Hutchings <bhutchings at solarflare dot com>
- To: YOSHIFUJI Hideaki <yoshfuji at linux-ipv6 dot org>
- Cc: Cong Wang <amwang at redhat dot com>, Thomas Backlund <tmb at mageia dot org>, EricBlake <eblake at redhat dot com>, <netdev at vger dot kernel dot org>,<linux-kernel at vger dot kernel dot org>, <libvirt-list at redhat dot com>, <tgraf at suug dot ch>,David Miller <davem at davemloft dot net>, <libc-alpha at sourceware dot org>,<schwab at suse dot de>, <carlos at systemhalted dot org>
- Date: Wed, 16 Jan 2013 15:47:12 +0000
- Subject: Re: Redefinition of struct in6_addr in <netinet/in.h> and<linux/in6.h>
- References: <50F2FF1B.3020708@mageia.org> <50F313A5.3020707@mageia.org> <50F49B7E.50906@redhat.com> <50F52956.50201@mageia.org> <1358244688.4264.7.camel@cr0> <50F53596.4070200@mageia.org> <1358316366.14898.8.camel@cr0> <50F6B761.8070106@linux-ipv6.org>
On Wed, 2013-01-16 at 23:21 +0900, YOSHIFUJI Hideaki wrote:
> Cong Wang wrote:
> > (Cc'ing some glibc developers...)
> >
> > Hello,
> >
> > In glibc source file inet/netinet/in.h and kernel source file
> > include/uapi/linux/in6.h, both define struct in6_addr, and both are
> > visible to user applications. Thomas reported a conflict below.
> >
> > So, how can we handle this? /me is wondering why we didn't see this
> > before.
[...]
> This is not a new issue. In addition to this,
> netinet/in.h also conflits with linux/in.h.
>
> We might have
> #if !defined(__GLIBC__) || !defined(_NETINET_IN_H)
> :
> #endif
> around those conflicting definitions in uapi/linux/in{,6}.h.
This only solves half the problem, as <netinet/in.h> might be included
after <linux/in.h>. Also, not all Linux userland uses glibc.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.