From 22944b41344c2e270a621cc1be65e533858ddd29 Mon Sep 17 00:00:00 2001
From: Bryan Drewery <bdrewery@FreeBSD.org>
Date: Wed, 24 Feb 2016 17:18:49 +0000
Subject: [PATCH] Support a WANT_MAKE_VERSION.

This will be used soon for .dinclude support in FAST_DEPEND.

MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
---
 Makefile | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 09d1c9b0e05..0be017d9f71 100644
--- a/Makefile
+++ b/Makefile
@@ -297,11 +297,9 @@ kernel: buildkernel installkernel
 # Perform a few tests to determine if the installed tools are adequate
 # for building the world.
 #
-# Note: if we ever need to care about the version of bmake, simply testing
-# MAKE_VERSION against a required version should suffice.
-#
 upgrade_checks:
-.if ${HAVE_MAKE} != ${WANT_MAKE}
+.if ${HAVE_MAKE} != ${WANT_MAKE} || \
+    (defined(WANT_MAKE_VERSION) && ${MAKE_VERSION} < ${WANT_MAKE_VERSION})
 	@(cd ${.CURDIR} && ${MAKE} ${WANT_MAKE:S,^f,,})
 .endif