https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96540
--- Comment #3 from Jürgen Reuter <juergen.reuter at desy dot de> --- Just uncommenting the declarations doesn't help because later on compilation fails with n file included from gtype-desc.c:52: ../../gcc/value-range.h:352:21: error: 'm_ranges' is a private member of 'int_range<1>' gt_ggc_mx (x->m_ranges[i * 2]); ^ because the friend declaration is missing. :(