Avoid some annoying pitfalls of HOST_CPPFLAGS:=... in Makefile.host.

tools/mdsetimage/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.2 2001/10/24 23:57:45 thorpej Exp $
+#	$NetBSD: Makefile,v 1.3 2001/10/25 02:37:49 thorpej Exp $
 
 MDSETIMAGE_TARGET_PREFIX=${MACHINE_GNU_PLATFORM}-
 
@@ -12,4 +12,6 @@ IBERTYDIR= ${TOOLCHAINOBJDIR}/toolchain/libiberty
 
 TOOLCHAINOBJDIR!= cd ${_CURDIR}/../toolchain && ${PRINTOBJDIR}
 
+HOST_CPPFLAGS+= -I${BFDDIR} -I${DIST}/include
+
 ${TIMESTAMP}: ${SRCS}