https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67728
--- Comment #16 from Bernd Edlinger <bernd.edlinger at hotmail dot de> --- you should use whatever gmp,mpfr,mpc version you like. with or without assembly should not make any difference. That should work, but dont expect it to work in-tree. Instead use the --with-gmp --with-mpfr and --with-mpc configure options. Or use the versions that download_prerequisites downloads by default in-tree, that will work also. Right?
