http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55916
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-01-09 16:09:25 UTC --- > As __float128 is outside of the scope of C/C++, this is not a bug on the C > library side. It might be outside the scope of C/C++ but doesn't C99 allow some implementation defined types?