new imported libpcap has net/bpf.h handling issue

[Max Laier]

On Saturday 20 October 2007, Norikatsu Shigemura wrote:
> 	I tried to install ports/net/pchar on 8-current machine.  And
> 	I got following compiling error message:-(.
>
> c++ -O -fno-strict-aliasing -pipe -march=pentium3 -I. -DSIZEOF_BOOL=1
> -DHAVE_SOCKLEN_T=1 -DSTDC_HEADERS=1 -DHAVE_UNISTD_H=1
> -DHAVE_STRINGS_H=1 -DHAVE_SOCKADDR_SA_LEN=1 -DHAVE_HERROR=1
> -DHAVE_SNPRINTF=1 -DHAVE_LIBM=1 -DHAVE_IPV6=1 -DHAVE_PCAP=1
> -DHAVE_LIBPCAP=1 -DHAVE_BPF=1 -c Pctest.cc -o Pctest.o Pctest.cc: In
> constructor 'Pctest::Pctest()':
> Pctest.cc:103: error: 'BIOCIMMEDIATE' was not declared in this scope
>
> 	So I research this issue.  As the result, I found a issue which
> 	is that new pcap.h doesn't #include <net/bpf.h>.
>
> 	I don't have any idea to fix this issue.  Anyone, please fix
> 	this issue:-).

I'm somewhat reluctant to apply this as I don't think it's a good idea to 
have that kind of namespace pollution in the pcap header.  If you want to 
use bpf directly, you should include the header yourself.

As this behavior is verbatim from the vendor, code that doesn't include 
sys/bpf.h when it needs it isn't portable and should be fixed, anyhow.

This of course is just my reading of things and you can convince me 
otherwise.  If a ton of ports break, we most certainly should apply the 
bandaid.

> --- src/contrib/libpcap/pcap.h	2006/09/04 19:54:21	1.12
> +++ src/contrib/libpcap/pcap.h	2007/10/16 02:07:55	1.13
> @@ -32,7 +32,7 @@
>   * SUCH DAMAGE.
>   *
>   * $FreeBSD$
> - * @(#) $Header: /home/ncvs/src/contrib/libpcap/pcap.h,v 1.12
> 2006/09/04 19:54:21 sam Exp $ (LBL) + * @(#) $Header:
> /home/ncvs/src/contrib/libpcap/pcap.h,v 1.13 2007/10/16 02:07:55 mlaier
> Exp $ (LBL) */
>
>  #ifndef lib_pcap_h
> @@ -41,7 +41,9 @@
>  #include <sys/types.h>
>  #include <sys/time.h>
>
> -#include <net/bpf.h>
> +#ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H
> +#include <pcap-bpf.h>
> +#endif
>
>  #include <stdio.h>


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