Re: Redefinition of `struct in6_addr'?

["Larry Hall (Cygwin)" <reply-to-list-only-lh at cygwin dot com>]

On 4/24/2013 2:12 PM, Corinna Vinschen wrote:
> On Apr 24 19:53, Samuel Thibault wrote:
> > Corinna Vinschen, le Wed 24 Apr 2013 19:51:07 +0200, a Ãcrit :
> > > > > /usr/include/cygwin/in6.h:75:8: error: redefinition of âstruct in6_addrâ
> > > > > /usr/lib/gcc/i686-pc-cygwin/4.5.3/../../../../include/w32api/in6addr.h:17:16:
> > > > > note: originally defined here
> > >
> > > Don't know this file but this is a bug in config.h.  struct in6_addr
> > > is defined in a system header, so it should not be gratuitously defined
> > > in a project header, especially if the definition collides with the
> > > right one from the system header.
> >
> > Mmm, but here it's w32api definition vs cygwin definition.
>
> Maybe I didn't read it exactly, but the bottom line here is, when
> building for Cygwin, either use the POSIX network headers (preferredly),
> or use winsock.h.  Mixing them is not supported.

Yeah, though this case is a bit buried, so it's not obvious.  Also the code
is from 2008, so I expect it has suffered some bit rot over time with
respect to Cygwin.  In any case, it looks like removing iphlpapi.h from
sysdep.c solves the problem.


--
Larry

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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