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Should it be in print_usage in lua.c?


On Sat, 18 Dec 2004 18:04:33 -0200, Luiz Henrique de Figueiredo
<lhf@tecgraf.puc-rio.br> wrote:
> > It is not obvious to me what the "-w" parameter does on the
> > command line of lua.c.
> 
> It flags undefined global variables:
> 
> $ lua
> Lua 5.1 (work)  Copyright (C) 1994-2004 Tecgraf, PUC-Rio
> > =a
> nil
> 
> $ lua -w
> Lua 5.1 (work)  Copyright (C) 1994-2004 Tecgraf, PUC-Rio
> > =a
> stdin:1: attempt to access undefined variable `a'
> stack traceback:
>         [C]: ?
>         stdin:1: in main chunk
>         [C]: ?
> 
> --lhf
>