From c1b2e4fc21f9e9982b8a92658989aa3d5a1d25c8 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 9 Apr 2012 14:47:18 +0000
Subject: [PATCH] In kdump's mkioctls script, use '${CPP}' instead of
 hardcodedly using 'gcc -E'.  This fixes building when WITH_CLANG_IS_CC is in
 effect.

Report by:	Niclas Zeising <zeising@daemonic.se>
MFC after:	1 week
---
 usr.bin/kdump/Makefile | 2 +-
 usr.bin/kdump/mkioctls | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/usr.bin/kdump/Makefile b/usr.bin/kdump/Makefile
index afa94bb7d127..f19bd16b6595 100644
--- a/usr.bin/kdump/Makefile
+++ b/usr.bin/kdump/Makefile
@@ -21,7 +21,7 @@ NO_WERROR?=	YES
 CLEANFILES=	ioctl.c kdump_subr.c kdump_subr.h linux_syscalls.c
 
 ioctl.c: mkioctls
-	env MACHINE=${MACHINE} \
+	env MACHINE=${MACHINE} CPP="${CPP}" \
 	    sh ${.CURDIR}/mkioctls print ${DESTDIR}/usr/include > ${.TARGET}
 
 kdump_subr.h: mksubr
diff --git a/usr.bin/kdump/mkioctls b/usr.bin/kdump/mkioctls
index 22ca26854dc1..eefe14cce1a0 100644
--- a/usr.bin/kdump/mkioctls
+++ b/usr.bin/kdump/mkioctls
@@ -38,7 +38,7 @@ case "${MACHINE}" in
 esac
 
 awk -v x="$ioctl_includes" 'BEGIN {print x}' |
-	gcc -E -I$1 -dM -DCOMPAT_43TTY - |
+	$CPP -I$1 -dM -DCOMPAT_43TTY - |
 	awk -v ioctl_includes="$ioctl_includes" -v style="$style" '
 BEGIN {
 	print "/* XXX obnoxious prerequisites. */"