From 02e218141ba68658f06ed35869d6f39d3b7629dc Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Mon, 4 Apr 2011 00:54:33 +0000
Subject: toplevel: add a warning about .config being out of sync after an
 update

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26459 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 include/toplevel.mk | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'include/toplevel.mk')

diff --git a/include/toplevel.mk b/include/toplevel.mk
index e9384aebc..b215e41af 100644
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -133,6 +133,13 @@ prereq:: prepare-tmpinfo .config
 	@+$(NO_TRACE_MAKE) -r -s $@
 
 %::
+	@( \
+		cp .config tmp/.config; \
+		./scripts/config/conf -D tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
+		if ./scripts/kconfig.pl '>' .config tmp/.config | grep -q CONFIG; then \
+			echo "WARNING: your configuration is out of sync. Please run make menuconfig, oldconfig or defconfig!"; \
+		fi \
+	)
 	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
 	@+$(SUBMAKE) -r $@
 
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