https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89153
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution|--- |INVALID --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Can't reproduce it on a stock GCC 6.3.0. In fact a stock GCC 6.3.0 rejects the code: /usr/include/x86_64-linux-gnu/bits/mathcalls-helper-functions.h:21:30: error: unknown type name '_Float128'