From 14f143093d5a3e4956d20af0c4aeda49f9b4aea6 Mon Sep 17 00:00:00 2001
From: bdrewery <bdrewery@FreeBSD.org>
Date: Thu, 7 Jan 2016 00:20:47 +0000
Subject: Revert r293286.   It was not intended to come in yet.

---
 Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index c9b8a0a..836097b 100644
--- a/Makefile
+++ b/Makefile
@@ -143,6 +143,13 @@ TGTS+=	${BITGTS}
 
 PATH=	/sbin:/bin:/usr/sbin:/usr/bin
 MAKEOBJDIRPREFIX?=	/usr/obj
+_MAKEOBJDIRPREFIX!= /usr/bin/env -i PATH=${PATH} ${MAKE} \
+    ${.MAKEFLAGS:MMAKEOBJDIRPREFIX=*} __MAKE_CONF=${__MAKE_CONF} \
+    -f /dev/null -V MAKEOBJDIRPREFIX dummy
+.if !empty(_MAKEOBJDIRPREFIX)
+.error MAKEOBJDIRPREFIX can only be set in environment, not as a global\
+	(in make.conf(5)) or command-line variable.
+.endif
 
 # We often need to use the tree's version of make to build it.
 # Choices add to complexity though.
-- 
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