Update libpcap to version 0.7.1.

Enable IPv6 support if /usr/include/netinet/ip6.h exists.

I did not find a way to have a changes summary for version 0.6.2.

Summary for 0.7 release:
- Added pcap_findalldevs() call to get list of interfaces in a MI way.
- pcap_stats() has been documented as to what its counters mean on
  each platform.

net/libpcap/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.10 2001/10/18 15:20:30 veego Exp $
+# $NetBSD: Makefile,v 1.11 2002/02/13 15:25:16 seb Exp $
 
-DISTNAME=		libpcap-0.6.1
+DISTNAME=		libpcap-0.7.1
 SVR4_PKGNAME=		lpcap
 CATEGORIES=		net
 MASTER_SITES= 		http://www.tcpdump.org/release/
@@ -18,6 +18,9 @@ GNU_CONFIGURE=		yes
 .if ${OPSYS} == "SunOS"
 BUILD_DEPENDS+=		bison-[0-9]*:../../devel/bison
 BUILD_DEPENDS+=		flex-[0-9]*:../../devel/flex
+.  if exists(/usr/include/netinet/ip6.h)
+CONFIGURE_ARGS+=	--enable-ipv6
+.  endif
 .endif
 
 .include "../../mk/bsd.pkg.mk"

net/libpcap/buildlink.mk

@@ -1,4 +1,4 @@
-# $NetBSD: buildlink.mk,v 1.2 2001/09/06 13:22:19 zuntum Exp $
+# $NetBSD: buildlink.mk,v 1.3 2002/02/13 15:25:16 seb Exp $
 #
 # This Makefile fragment is included by packages that use libpcap. 
 #
@@ -17,7 +17,7 @@ LIBPCAP_BUILDLINK_MK=	# defined
 
 .include "../../mk/bsd.buildlink.mk"
 
-BUILDLINK_DEPENDS.libpcap?=	libpcap>=0.6.1
+BUILDLINK_DEPENDS.libpcap?=	libpcap>=0.7.1
 
 .if exists(/usr/include/pcap.h)
 _NEED_LIBPCAP=		NO

net/libpcap/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.2 2001/04/21 11:23:21 wiz Exp $
+$NetBSD: distinfo,v 1.3 2002/02/13 15:25:16 seb Exp $
 
-SHA1 (libpcap-0.6.1.tar.gz) = 0b1f7290ba9859141c6dbe836c91b20c159210b8
-Size (libpcap-0.6.1.tar.gz) = 170681 bytes
+SHA1 (libpcap-0.7.1.tar.gz) = 15a12314d709a5d0e7b1e4e52e3fd4698d3468ca
+Size (libpcap-0.7.1.tar.gz) = 197653 bytes