From dc368d812a1d307a439e0a5823d4695d16c98c45 Mon Sep 17 00:00:00 2001
From: sjg <sjg@FreeBSD.org>
Date: Sat, 30 May 2015 15:08:52 +0000
Subject: [PATCH] Define SRCTOP in src.sys.mk

Because src.sys.mk should only ever be found in the src tree
we can use its position (.PARSEDIR) to set SRCTOP.

Reviewed by:	bapt, imp
---
 share/mk/src.sys.mk | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/share/mk/src.sys.mk b/share/mk/src.sys.mk
index 78a0c2378671..580481071eed 100644
--- a/share/mk/src.sys.mk
+++ b/share/mk/src.sys.mk
@@ -5,13 +5,16 @@
 # to preserve historical (and useful) behavior. Changes here need to
 # be reflected there so SRCCONF isn't included multiple times.
 
+# make sure this is defined in a consistent manner
+SRCTOP:= ${.PARSEDIR:tA:H:H}
+
 # Allow user to configure things that only effect src tree builds.
 SRCCONF?=	/etc/src.conf
 .if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_)
-.include "${SRCCONF}"
+.sinclude "${SRCCONF}"
 _srcconf_included_:	.NOTMAIN
 .endif
-# If we were found via .../share/mk we need to replace that in
+# If we were found via .../share/mk we need to replace that
 # with ${.PARSEDIR:tA} so that we can be found by
 # sub-makes launched from objdir.
 .if ${.MAKEFLAGS:M.../share/mk} != ""