Turning warning "returning reference to temporary" into error?

[Zack Weinberg]

Richard Guenther <rguenth@tat.physik.uni-tuebingen.de> writes:

> I really want this to be diagnosed at compile time, and as this is a
> large project, I want to have an error diagnosed, not only a
> warning. In the current form this is not possible without turning
> every default warning into an error with -Werror.

Probably your best bet is to help out the people working on generic
warning controls.  If we can have a "suppress this specific warning"
toggle, we can have a "turn this specific warning into an error"
toggle too.

zw