http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59878
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- But the prerequisites.html already says "Use --with-isl=system". So to me it looks like a pilot error.