[Bug target/78478] Compile Error for i386-rtems

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78478

--- Comment #7 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
On Tue, 17 Jan 2017, joel at gcc dot gnu.org wrote:

> > I.e., the bug was enabling unintended soft-fp usage of XFmode at the same 
> > time as enabling usage of TFmode.  The TFmode functions should be kept in 
> > libgcc while disabling the conversions between XFmode and TFmode for this 
> > case.
> 
> Any thoughts on how to fix this? I would love a proper fix. 

Well, you need to distinguish a genuine sfdftf case from sfdfxftf which it 
appears this t- file really is.  Distinguish by some configure test that 
determines whether there is XFmode support for the multilib being 
compiled, I suppose (look at the other tmake_file settings in config.host 
based on variables set by configure tests).