Add a comment that -Onot is deprecated

diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index f12bb79..bd97d42 100644 (file)
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -1050,7 +1050,7 @@ dynamic_flags = [
 
        ------ Optimisation flags ------------------------------------------
   ,  ( "O"     , NoArg (upd (setOptLevel 1)))
-  ,  ( "Onot"  , NoArg (upd (setOptLevel 0)))
+  ,  ( "Onot"  , NoArg (upd (setOptLevel 0))) -- deprecated
   ,  ( "O"     , OptIntSuffix (\mb_n -> upd (setOptLevel (mb_n `orElse` 1))))
                -- If the number is missing, use 1