Make it build on DragonFly. From Rumko via PR 41763.

security/prelude-pflogger/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.7 2008/08/17 03:21:45 dholland Exp $
+# $NetBSD: Makefile,v 1.8 2009/08/23 20:02:28 hasso Exp $
 #
 
 DISTNAME=	prelude-pflogger-0.9.0-rc2
@@ -65,6 +65,7 @@ pre-patch:
 pre-configure:
 	set -e; cd ${WRKSRC}; \
 	aclocal; autoheader; automake -a --foreign -i; autoconf
+	${LN} -s ${BUILDLINK_DIR}/lib/libltdl.so ${BUILDLINK_DIR}/lib/libltdlc.so
 
 post-build:
 	cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${CC} ${CFLAGS} -o run-prelude-pflogger run-prelude-pflogger.c
@@ -73,4 +74,5 @@ post-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/run-prelude-pflogger ${DESTDIR}${PREFIX}/sbin/run-prelude-pflogger
 
 .include "../../security/libprelude/buildlink3.mk"
+.include "../../devel/libltdl/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"

security/prelude-pflogger/distinfo

@@ -1,7 +1,8 @@
-$NetBSD: distinfo,v 1.4 2008/06/12 02:14:45 joerg Exp $
+$NetBSD: distinfo,v 1.5 2009/08/23 20:02:28 hasso Exp $
 
 SHA1 (prelude-pflogger-0.9.0-rc2.tar.gz) = ae354809dae5f04392a1c93a88be4cf9993c3b43
 RMD160 (prelude-pflogger-0.9.0-rc2.tar.gz) = 7c5808b0ca515c8080c64b52aa0aae166831e4d4
 Size (prelude-pflogger-0.9.0-rc2.tar.gz) = 303763 bytes
 SHA1 (patch-aa) = b7f7623e75c324e593aec10d921ee5364a2fa542
 SHA1 (patch-ab) = 75a78b3d50067b07448aff9fde565f8bd5ab1b54
+SHA1 (patch-ac) = 18e596f3de2835fa31062e42d3760f70707c8812

security/prelude-pflogger/patches/patch-ac

@@ -0,0 +1,19 @@
+--- src/process_packet.c.orig	2005-09-18 16:29:54 +0200
++++ src/process_packet.c
+@@ -40,8 +40,14 @@
+ #include <netinet/tcp.h>
+ #include <netinet/udp.h>
+ #include <net/if.h>
+-#include <net/if_pflog.h>
+-#include <net/pfvar.h>
++#ifdef __DragonFly__
++#	include <net/if_var.h>
++#	include <net/pf/if_pflog.h>
++#	include <net/pf/pfvar.h>
++#else
++#	include <net/if_pflog.h>
++#	include <net/pfvar.h>
++#endif
+ #include <netdb.h>
+ #include <pcap.h>
+ #include <sys/ioctl.h>