PATCH: Enable TFmode for SSE2

[Joseph S. Myers]

On Sun, 29 Jun 2008, H.J. Lu wrote:

> How can I tell if the libgcc build directory is for 32bit or 64bit at
> configure time?
> I guess I have to run CC to check it.

Yes, I think you do need a configure check to distinguish 32-bit and 
64-bit multilibs for i?86 and x86_64 targets.  Note that libgcc already 
has a few configure checks (of course you can only do compile checks, not 
link ones, but that's enough here).  I imagine the check might set a shell 
variable that config.host uses to select a t- fragment, or a makefile 
variable used in a t- fragment.

-- 
Joseph S. Myers
joseph@codesourcery.com