fixes for type-punning warnings in GCC 4.1

[Eli Zaretskii]

> From: Alexandre Oliva <aoliva@redhat.com>
> Date: Mon, 19 Dec 2005 17:20:48 -0200
> 
> This patch fixes the type-punning warnings that the GCC 4.1 branch
> issues when compiling the GDB code base.
> [...]
> -	num = sscanf (p, "%g%s", (float *) &putithere->typed_val_float.dval,s);
> +	num = sscanf (p, "%g%s", (float *) (void *) &putithere->typed_val_float.dval,s);

If this is the fix, then forgive me, but I'd prefer not to fix it at
all, 'cause it's so UUUGLYYYY!  If we can use some command-line switch
to GCC to shut it up, let's do that instead.  Failing that, let's just
leave the code alone, so that GCC's continued whining stands as a token
of our unappreciation to compilers that should have known better!

Thanks for working on this, anyway.