From a342f43571b9d96776d35c94c3f98c5f64096c48 Mon Sep 17 00:00:00 2001
From: Kristof Provost <kp@FreeBSD.org>
Date: Sat, 22 Jul 2017 12:51:19 +0000
Subject: [PATCH] Handle WITH/WITHOUT_PF in libsysdecode

Only filter out the PF ioctls if we're building without pf support.
Until now those were always filtered out, so truss did not show symbolic
names for pf ioctls.

Differential Revision:	https://reviews.freebsd.org/D11629
---
 lib/libsysdecode/Makefile | 2 +-
 lib/libsysdecode/mkioctls | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/libsysdecode/Makefile b/lib/libsysdecode/Makefile
index 9ce166c88641..073cb7ad804a 100644
--- a/lib/libsysdecode/Makefile
+++ b/lib/libsysdecode/Makefile
@@ -122,7 +122,7 @@ tables.h: mktables
 ioctl.c: .PHONY
 .endif
 ioctl.c: mkioctls .META
-	env CPP="${CPP}" \
+	env CPP="${CPP}" MK_PF="${MK_PF}" \
 	    /bin/sh ${.CURDIR}/mkioctls ${SYSROOT:U${DESTDIR}}${INCLUDEDIR} > ${.TARGET}
 
 beforedepend: ioctl.c tables.h
diff --git a/lib/libsysdecode/mkioctls b/lib/libsysdecode/mkioctls
index 743029a24f20..03f53ead642e 100644
--- a/lib/libsysdecode/mkioctls
+++ b/lib/libsysdecode/mkioctls
@@ -17,8 +17,14 @@ LC_ALL=C; export LC_ALL
 # XXX should we use an ANSI cpp?
 ioctl_includes=$(
 	cd $includedir
+
+	filter='tee'
+	if [ "${MK_PF}" == "no" ]; then
+		filter='egrep -v (net/pfvar|net/if_pfsync)\.h'
+	fi
+
 	find -H -s * -name '*.h' | \
-	egrep -v '(net/pfvar|net/if_pfsync)\.h' | \
+		$filter | \
 		xargs egrep -l \
 '^#[ 	]*define[ 	]+[A-Za-z_][A-Za-z0-9_]*[ 	]+_IO[^a-z0-9_]' |
 		awk '{printf("#include <%s>\\n", $1)}'