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Re: Do not define -mlong-double-128 on ppc when --without-fp specified?
On Thu, Mar 16, 2006 at 10:36:32AM +0100, Lior Balkohen wrote:
> 2006/3/16, Roland McGrath <roland@redhat.com>:
> > Sorry, it's going to be broken until someone volunteers to fill in the
> > missing pieces. We do not want to have different glibc ABIs for different
> > powerpc configurations. The glibc ABI for powerpc will use IBM extended
> > format for long double from now on, regardless of the particular hardware
> > constraints you are configuring for. To restore working support for
> > --without-fpu powerpc configurations, GCC needs to be made to support it.
> > This will require writing the soft-fp support for IBM extended format that
> > GCC will generate calls to.
>
> You mean something like this patch?
> http://gcc.gnu.org/ml/gcc-patches/2006-03/msg00689.html
Partly. If you look into the patch, you'll see it only supports
IEEE single, double and quad types, not the IBM extended type.
Jakub