On Sun, Aug 9, 2020 at 6:01 PM Ron Zamir via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: > trying to build gcc-10.2 > I've added the latest sources for the GMP, MPFR, MPC, ISL libraries > My system is CentOS 7.8 with gcc version 4.85 gcc-4.8.5 is rather old. I'd suggest installing a more recent version of gcc using the software collections web site. https://wiki.centos.org/AdditionalResources/Repositories/SCL https://www.softwarecollections.org/en/scls/rhscl/devtoolset-8/ Looks like gcc-8 is the most recent one that they have, but using gcc-8 to build gcc-10 will likely work much better than using gcc-4.8.5 to build gcc-10. Adding the devtoolset-8 also gets you more recent versions of gmp, mpfr, and mpc, which might be recent enough to make the gcc-10 build happy. Jim