[IPOL discuss] small compilation error in LSD code (ubuntu 11.10)

[Juan Cardelino]

>
> I don't  think so, I've recompiled all my code (~30k lines) and didn't
> have any new warnings.
> A problem I found recently with gcc, it is not warning me anymore
> about undeclared functions. Maybe there is a new flag to ask him to
> warn about that. This lack of warning turned into a nasty error, see
> this example:
>

is it possible that -Wundeclared was enabled by default and not it is not?