diff --git a/cc/util.go b/cc/util.go
index eeb64eb..cc89af6 100644
--- a/cc/util.go
+++ b/cc/util.go
@@ -131,3 +131,10 @@
 	}
 	return list
 }
+
+func addSuffix(list []string, suffix string) []string {
+	for i := range list {
+		list[i] = list[i] + suffix
+	}
+	return list
+}