This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: build regression
Alexandre Oliva wrote:-
> > I want to be able to *decode* all switches before *handling* any of
> > them, and to do this switch decoding has to be language and target
> > independent
>
> I don't understand why decoding has to be language and
> target-independent in order to be able to decode before handling.
Because otherwise you wouldn't know their meaning; and whether the
following element in the argv vector is an argument or a switch.
> Could you please explain it to me? Please start by describing whether
> you're talking about option handling in the compiler driver, in
> front end actual compilers, or both.
We already have a similar restriction in the driver; it's never been
mentioned as a problem that someone might want an -m or an -f option to
take a separate argument, for example.
Unless you can come up with existing front ends that this will cause
a problem with, I'm not going to worry about it. The driver can
rewrite options anyway; that's what it's main purpose in life is after
all.
Neil.