Re: [patch] silence uninitialised variable warnings

[Brian Sidebotham <micros at valvers dot com>]

PaweÅ Sikora wrote:
> Manuel LÃpez-IbÃÃez pisze:
> > On 11/09/2007, Brian Sidebotham <micros@valvers.com> wrote:
> > > Hi Guys,
> > >
> > > Attached is a patch to silence a lot of "var might be used 
> > > uninitialised.."
> > > warnings - Generally caused by a pointer to the var being passed to a 
> > > function
> > > that then modifies the contents of the var.
> >
> > Do you get those warnings with a recent GCC version ?
>
> 4.2.2-20070825 produces these warnings.
> 4.3.0-20070825 works fine and Brian's patch isn't needed
> (at least for PR32395).

I am using gcc-4.0.3 (the current ubuntu gcc install version). However, are we 
saying that to get a warning-free build you must use an experimental version of 
gcc? The patch silences a good version of gcc whilst building gcc.

There are also a lot of "cast discards qualifiers from pointer target type" 
warnings too, which are next on my list. I am mainly wanting to get the number 
of warnings down for building arm-none-elf and arm-none-eabi.

I appreciate you don't need to support building current svn with gcc-2.95 or 
similar, but if the latest release version of gcc issues these warnings, then I 
think it is reasonable to silence them.

Best Regards,

Brian Sidebotham.