https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64612
--- Comment #16 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> --- > If you are willing to cook up an effective-target for that in > lib/target-supports.exp, sure, go ahead. Given the complexity of the HAVE_COMDAT_GROUP test in gcc/configure.ac, the best way seems to have gcc define something like __GCC_HAVE_COMDAT_GROUP and use that in target-supports.exp. Rainer