Re: [wwwdocs] gcc-4.7/porting_to.html

[Benjamin Kosnik]

> > + <h3>Boolean type promotion changes</h3>
> > + 
> > + <p>
> > + The C compiler no longer promotes boolean values in arithmetic
> > + statements to integer values. Configure-related code that checks
> > for
> > + C99's &lt;stdbool.h&gt; may be impacted. If the following line is
> > + newly present in configure logs, then &lt;stdbool.h&gt; support is
> > + incorrectly configured.
> > + </p>
> 
> This does not make sense to me as a description of any change in 4.7.
> 
> > + <pre>
> > + checking for stdbool.h that conforms to C99... no
> > + </pre>
> 
> That should have been fixed by:
> 
> 2012-01-03  Richard Guenther  <rguent...@suse.de>
> 
>         PR middle-end/51730
>         * fold-const.c (fold_comparison): Properly canonicalize
>         tree offset and HOST_WIDE_INT bit position.

Ah. Yes, this would explain why I can no longer reproduce it. Sorry,
this analysis was done before the third of January.

Thanks. I was hoping to get a better explanation of this change/issue
and you've provided it.

best,
Benjamin