1 files changed, 1 insertions, 0 deletions

diff --git a/cpp.mlb b/cpp.mlb
index ef33548..b1b0085 100644
--- a/cpp.mlb
+++ b/cpp.mlb
@@ -1,5 +1,6 @@
 ann
 	"allowRecordPunExps true"
+    "warnUnused true"
 in
 	$(SML_LIB)/basis/basis.mlb
 	cpp.sml