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).