From c3168e050eabff55e12485c8648f4cf0744182c1 Mon Sep 17 00:00:00 2001
From: José Fonseca <jfonseca@vmware.com>
Date: Sun, 14 Feb 2010 13:15:49 +0000
Subject: makefiles: Don't complaint about changing configs if the same one is
 reselected.

Otherwise it creates unnecessary pain when automating builds in a build
server/farm.
---
 Makefile | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 3a9c92bdfe..ea5751d947 100644
--- a/Makefile
+++ b/Makefile
@@ -173,11 +173,14 @@ sunos5-v9 \
 sunos5-v9-static \
 sunos5-v9-cc-g++ \
 ultrix-gcc:
-	@ if test -f configs/current || test -L configs/current ; then \
-		echo "Please run 'make realclean' before changing configs" ; \
-		exit 1 ; \
+	@ if test -f configs/current -o -L configs/current; then \
+		if ! cmp configs/$@ configs/current > /dev/null; then \
+			echo "Please run 'make realclean' before changing configs" ; \
+			exit 1 ; \
+		fi ; \
+	else \
+		cd configs && rm -f current && ln -s $@ current ; \
 	fi
-	(cd configs && rm -f current && ln -s $@ current)
 	$(MAKE) default
 
 
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