From 4e3db1e0af4711dcc1f0b971a5e2ee1e0f7bafb1 Mon Sep 17 00:00:00 2001
From: Bryan Drewery <bdrewery@FreeBSD.org>
Date: Sat, 16 Jun 2018 00:35:19 +0000
Subject: [PATCH] Assert that a build is done before an install.

This should also catch cases where the wrong MAKEOBJDIRPREFIX is used for
install.

MFC after:	2 weeks
Sponsored by:	Dell EMC
---
 Makefile.inc1 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile.inc1 b/Makefile.inc1
index 18bd7ecd3ac2..074bdedeb67f 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -89,6 +89,9 @@ MK_GCC_BOOTSTRAP=	no
 .if make(installworld) || make(install) || make(distributeworld) || \
     make(stageworld)
 .-include "${OBJTOP}/compiler-metadata.mk"
+.if !defined(_LOADED_COMPILER_METADATA)
+.error A build is required first.  You may have the wrong MAKEOBJDIRPREFIX set.
+.endif
 .endif
 
 # Pull in COMPILER_TYPE and COMPILER_FREEBSD_VERSION early. Pull it from the
@@ -195,6 +198,7 @@ compiler-metadata.mk: .PHONY .META
 	@: > ${.TARGET}
 	@echo ".info Using cached compiler metadata from build at $$(hostname) on $$(date)" \
 	    > ${.TARGET}
+	@echo "_LOADED_COMPILER_METADATA=t" >> ${.TARGET}
 .for v in ${_COMPILER_METADATA_VARS}
 	@echo "${v}=${${v}}" >> ${.TARGET}
 .endfor