Re: gcc or binutils bug?

[Paul Novak]

On Tue, Jan 09, 2007 at 07:56:30AM +0000, Nick Clifton wrote:
> Hi Paul,
> 
> >I'm experiencing some problem try to build binutils-2.17
> >using GCC 4.1.1 on an AMD Athon.  By default, 
> >binutils-2.17 is configured and compiled with -Werror.  
> >When using -O2, binutils-2.17 compiles cleanly.  
> >However, with -O3, I get some warnings which get 
> >elevated to fatal errors.  
> 
> We enabled -Werror in order to help uncover any lurking bugs which do 
> not normally trigger compiler error messages.  (And in the process also 
> to help tidy up the sources).  Hence we are very much interested in 
> warnings/errors produced when compiling at -O3, even though we do not 
> normally do that ourselves.
> 
> So, please feel free to report these warnings/errors on this list.  Even 
> better, please feel free to submit patches to fix them as well.  In some 
> cases however it is necessary to be a little bit cautious, as not all 
> warnings reported at -O3 are actual problems with the code.  Sometimes 
> the compiler itself can be a little bit too over-enthusiastic.  In such 
> cases we will consider altering the code to avoid the warning as long as 
> it does not introduce any performance penalties or unnecessary 
> complexities into the code.  Otherwise we would probably just ignore the 
> warning and instead put a comment into the code explaining why we are 
> not taking any other action.

I checked one more time, this time just with googel,  and I did find 
the bug already reported.

    [Bug binutils/3039] New: Compile fails (file wrstabs.c)

Thank you for your explanations.

Paul.