Nicolas barnier wrote:
> 
> I think it would therefore be quite useful to add 
> Set_option_{string|int|float}
> constructors which would expect {string|int|float} option ref values as
> arguments (usually initialized with None). Do others think the same or use
> some other workaround to obtain this behaviour ?

It is nice to know that I am not the only one who is writing
  Arg.String (fun s -> foo := Some s)
all the time.

Sam.