From 31635428413709f1a93109350f3ac2590e3d2062 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 3 Aug 2006 16:58:06 +0000
Subject: [PATCH] Added a check to prevent rebuilding Mesa with a different
 configuration without first doing 'make realclean'.

---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index bb593d40073..81d5eef4356 100644
--- a/Makefile
+++ b/Makefile
@@ -144,6 +144,10 @@ sunos5-v8-static \
 sunos5-v9 \
 sunos5-v9-static \
 ultrix-gcc:
+	@ if [ -e configs/current ] ; then \
+		echo "Please run 'make realclean' before changing configs" ; \
+		exit 1 ; \
+	fi
 	(cd configs && rm -f current && ln -s $@ current)
 	$(MAKE) default