[RFC PATCH] Optionally use -mlong-double-128 by default on {powerpc{,64},s390{,x},sparc,alpha}-linux

[Roland McGrath]

> On Tue, Jan 31, 2006 at 04:26:08PM +0100, Andreas Schwab wrote:
> > > +# Check if TFmode long double should be used by default or not.
> > > +# Some glibc targets used DFmode long double, but with glibc 2.4
> > > +# and later they can use TFmode.
> > > +case "$target" in
> > > +  powerpc*-*-*gnu* | \
> > > +  sparc*-*-linux* | \
> > > +  s390*-*-linux* | \
> > > +  alpha*-*-linux*)
> > 
> > Why powerpc*-*-*gnu*, but *-linux* for the rest?
> 
> On powerpc* AFAIK GNU Hurd uses rs6000/linux*.h and therefore it is
> switching as well.
> I can surely change it to powerpc*-*-linux* and let the Hurd folks
> decide what they really want.

No, the compiler ABI choices for *-*-linux-gnu and *-*-gnu should be the
same (on every machine).