From owner-freebsd-questions  Wed Jul 10 23:28:23 2002
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Date: Thu, 11 Jul 2002 08:28:13 +0200
From: =?ISO-8859-1?Q?Andreas_M=F6ller?= <andreas-moeller@gmx.net>
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To: questions@freebsd.org
Cc: Stanley Hopcroft <Stanley.Hopcroft@IPAustralia.Gov.AU>
Subject: Re: Incomplete types when attempting to compile IPv6 test program
 (porting ntop 2.1)
References: <20020711120822.A30929@IPAustralia.Gov.AU>
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> Please would you let me know what I must do to compile this test program 
> (test the presence of IPv6) with FreeBSD 4.6-RELEASE-p1 ?
> 
> tssyd> cat junk.c 
> #include <sys/types.h>
> #include <netinet/in_systm.h>
> #include <sys/socket.h>
> #include <netinet/ip.h>
> #include <netinet/in.h>
> 
>         struct in6_addr tmp;
> 
> tssyd> gcc -o junk.o junk.c
> In file included from junk.c:4:
> /usr/include/netinet/ip.h:73: field `ip_src' has incomplete type
> /usr/include/netinet/ip.h:73: field `ip_dst' has incomplete type
> /usr/include/netinet/ip.h:158: field `ipt_addr' has incomplete type
> tssyd> 

You must include <netinet/in.h> before <netinet/in_systm.h>.

		Andreas


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