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-rw-r--r--scripts/multiconfig.sh15
1 files changed, 15 insertions, 0 deletions
diff --git a/scripts/multiconfig.sh b/scripts/multiconfig.sh
index 3a963c7973..3e3040b2e2 100644
--- a/scripts/multiconfig.sh
+++ b/scripts/multiconfig.sh
@@ -297,9 +297,24 @@ do_others () {
else
objdir=${1%/*}
check_enabled_subimage $1 $objdir
+
+ if [ -f "$objdir/$KCONFIG_CONFIG" ]; then
+ timestamp_before=$(stat --printf="%Y" \
+ $objdir/$KCONFIG_CONFIG)
+ fi
fi
run_make_config $target $objdir
+
+ if [ "$timestamp_before" -a -f "$objdir/$KCONFIG_CONFIG" ]; then
+ timestamp_after=$(stat --printf="%Y" $objdir/$KCONFIG_CONFIG)
+
+ if [ "$timestamp_after" -gt "$timestamp_before" ]; then
+ # $objdir/.config has been updated.
+ # touch .config to invoke "make silentoldconfig"
+ touch $KCONFIG_CONFIG
+ fi
+ fi
}
progname=$(basename $0)
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