Index: head/share/mk/Makefile
===================================================================
--- head/share/mk/Makefile	(revision 288178)
+++ head/share/mk/Makefile	(revision 288179)
@@ -1,65 +1,71 @@
 # $FreeBSD$
 #	@(#)Makefile	8.1 (Berkeley) 6/8/93
 
+# Only parse this if executing make in this directory, not in other places
+# in src that lack a Makefile, such as sys/dev/*.  Otherwise the MAKESYSPATH
+# will read this Makefile since it auto includes it into -I.
+.if ${.CURDIR} == ${.PARSEDIR}
+
 .include <src.opts.mk>
 
 FILES=	\
 	auto.obj.mk \
 	bsd.README \
 	bsd.arch.inc.mk \
 	bsd.compiler.mk \
 	bsd.cpu.mk \
 	bsd.crunchgen.mk \
 	bsd.dep.mk \
 	bsd.doc.mk \
 	bsd.dtb.mk \
 	bsd.endian.mk \
 	bsd.files.mk \
 	bsd.incs.mk \
 	bsd.info.mk \
 	bsd.init.mk \
 	bsd.kmod.mk \
 	bsd.lib.mk \
 	bsd.libnames.mk \
 	bsd.links.mk \
 	bsd.man.mk \
 	bsd.mkopt.mk \
 	bsd.nls.mk \
 	bsd.obj.mk \
 	bsd.opts.mk \
 	bsd.own.mk \
 	bsd.port.mk \
 	bsd.port.options.mk \
 	bsd.port.post.mk \
 	bsd.port.pre.mk \
 	bsd.port.subdir.mk \
 	bsd.prog.mk \
 	bsd.progs.mk \
 	bsd.snmpmod.mk \
 	bsd.subdir.mk \
 	bsd.symver.mk \
 	bsd.sys.mk \
 	bsd.test.mk \
 	dirdeps.mk \
 	gendirdeps.mk \
 	install-new.mk \
 	meta.autodep.mk \
 	meta.stage.mk \
 	meta.subdir.mk \
 	meta.sys.mk \
 	stage-install.sh \
 	sys.mk \
 	sys.dependfile.mk \
 	version_gen.awk
 
 NO_OBJ=
 FILESDIR=	${BINDIR}/mk
 
 .if ${MK_TESTS} != "no"
 FILES+=	atf.test.mk
 FILES+=	plain.test.mk
 FILES+=	suite.test.mk
 FILES+=	tap.test.mk
 .endif
 
 .include <bsd.prog.mk>
+.endif	# CURDIR == PARSEDIR