From 14481f92c4fa8b8a93883b6d4547c6bbf9505ff3 Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Tue, 17 Oct 2017 19:11:29 +0000
Subject: [PATCH] loader.mk: clean md.o even if MD_IMAGE_SIZE not defined

We don't normally provide special handling for optionally-included src
files, but md.o depends on both md.c and the value of ${MD_IMAGE_SIZE}.
Previously if one built with MD_IMAGE_SIZE, executed "make clean", and
then built with a different MD_IMAGE_SIZE md.o would not be rebuilt.

Reported by:	Zakary Nafziger
Sponsored by:	The FreeBSD Foundation
---
 sys/boot/loader.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/boot/loader.mk b/sys/boot/loader.mk
index 814cef256c81..a501d69a7ade 100644
--- a/sys/boot/loader.mk
+++ b/sys/boot/loader.mk
@@ -43,6 +43,8 @@ SRCS+=  bcache.c
 .if defined(MD_IMAGE_SIZE)
 CFLAGS+= -DMD_IMAGE_SIZE=${MD_IMAGE_SIZE}
 SRCS+=	md.c
+.else
+CLEANFILES+=	md.o
 .endif
 
 # Machine-independant ISA PnP