$NetBSD: patch-ab,v 1.1.1.1 2008/09/12 15:05:57 taca Exp $

--- configure.in.orig	2008-06-22 12:35:54.000000000 +0900
+++ configure.in
@@ -1868,6 +1868,7 @@ AC_CHECK_HEADERS( \
 	ipl.h \
 	libc.h \
 	limits.h \
+  	machine/byte_swap.h \
 	malloc.h \
 	math.h \
 	memory.h \
@@ -1949,6 +1950,7 @@ dnl *BSD dont include the depenencies fo
 dnl We must include a few basic type headers for them to work.
 AC_CHECK_HEADERS( \
 	net/if.h \
+	net/pf/pfvar.h \
 	net/pfvar.h \
 	netinet/if_ether.h\
 	netinet/ip.h\
@@ -2434,8 +2444,8 @@ if test "$GCC" = "yes"; then
 	GCCVER=`$CC -v 2>&1 | awk '$2 ==  "version" {print $3}'`
 	case "$GCCVER" in
 	[2.95.[123]])
-		echo "Removing -O for gcc on $host with GCC $GCCVER"
-		CFLAGS="`echo $CFLAGS | sed -e 's/-O[[0-9]]*//'`"
+		echo "Making -O\[[2-9\]] to -O for gcc on $host with GCC $GCCVER"
+		CFLAGS="`echo $CFLAGS | sed -e 's/-O[[0-9]]*/-O/'`"
 		;;
 	esac
 fi
@@ -2819,7 +2829,7 @@ dnl PF support requires a header file.
 if test "$PF_TRANSPARENT" ; then
     AC_MSG_CHECKING(if PF header file is installed)
     # hold on to your hats...
-    if test "$ac_cv_header_net_pfvar_h" = "yes"; then
+    if test "$ac_cv_header_net_pfvar_h" = "yes" || test "$ac_cv_header_net_pf_pfvar_h" = "yes"; then
         PF_TRANSPARENT="yes"
         AC_DEFINE(PF_TRANSPARENT, 1)
     else