https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63801
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |build --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- https://gcc.gnu.org/ml/gcc-patches/2014-02/msg00558.html Looks like it was needed at one point because a bug in isl headers. But this might have been fixed already