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Re: how to make gcc stop when there is a warning


Richard, if the documentation would have said explicitly that Werror
"makes warnings to prevent compilation", would you have understood it
better?

One proposal:

-Werror  makes all warnings into errors, preventing compilation (see
also -Wfatal-errors).


On 12/05/06, Richard Guenther <richard.guenther@gmail.com> wrote:
On 5/12/06, D. Ensign <densign@stanford.edu> wrote:
> > > I'd like to tell gcc to quit when a warning is encountered
> > > (or even if a specific warning is encountered). Is there a way to do
> > > this?
> >
> > Yes.  -Werror.  If you can tell us why you weren't able to find it in
> > the documentation, perhaps we can address that!
>
> Partly, because I never learned to read. Partly, I'm impatient. Partly, because when any
> search containing "warning" is extremely unhelpful when you actually LIKE the warnings.
> Partly, the man page says, "Make all warnings into errors" for -Werror when perhaps it
> should say, "Treat warnings as errors: stop compilation immediately," or something like
> that. The latter might, however, have something to do with my not being able to read.

Use -Werror -Wfatal-errors (that will stop after the first error, not
trying to continue).

Richard.


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