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authorPeter Korsgaard <jacmet@sunsite.dk>2009-12-12 07:48:53 (GMT)
committer Peter Korsgaard <jacmet@sunsite.dk>2009-12-12 07:50:00 (GMT)
commit97c996d6548b1d73bebedb25cee23c2137cb6348 (patch)
tree292a5af26f92aa69d870136be70c937231c6b048
parent0a62bb41ba949cd5615069285de318150751d800 (diff)
downloadbuildroot-97c996d6548b1d73bebedb25cee23c2137cb6348.tar.gz
buildroot-97c996d6548b1d73bebedb25cee23c2137cb6348.tar.bz2
Makefile: document configure cache handling
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
-rw-r--r--Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index f8303e1..bf04773 100644
--- a/Makefile
+++ b/Makefile
@@ -441,6 +441,7 @@ external-deps:
SPIDER=--spider source
ifeq ($(BR2_CONFIG_CACHE),y)
+# drop configure cache if configuration is changed
$(BUILD_DIR)/tgt-config.cache: .config
rm -f $@
touch $@