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-rwxr-xr-xtool/ifchange3
1 files changed, 3 insertions, 0 deletions
diff --git a/tool/ifchange b/tool/ifchange
index 396a7a0bcf4..050c8d8f266 100755
--- a/tool/ifchange
+++ b/tool/ifchange
@@ -31,6 +31,9 @@ until [ $# -eq 0 ]; do
--color=*)
color=`expr \( "$1" : '[^=]*=\(.*\)' \)`
;;
+ --debug)
+ set -x
+ ;;
*)
break
;;