------ 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