https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60933
--- Comment #13 from Andreas <andreas.enge at inria dot fr> --- Indeed, contrib/download_prerequisites now points to the latest versions of gmp, mpfr and mpc. Thanks! It would be nice if you could keep this up to date with our next releases; we will be happy to work together should any problems occur. Andreas