Hi Kito, Le 02/05/2023 à 17:51, Kito Cheng a écrit : >>> Pushed to trunk, thanks for catching that, that's definitely should >>> use log2 no matter C++03 or C++11, >>> but I think GCC allows the usage of C++11 according to >>> https://gcc.gnu.org/install/prerequisites.html :P >> Yes, we should be able to use C++11. I'd like to get that to C++17 at >> some point, but I think the biggest problem is the desire to support >> bootstrapping on something like centos7/rhel7. > > At least we have auto and range based for loop, I am satisfied with > that enough.
Indeed, gcc 4.9 already support C++11 but for some reason std::log2 fail with it. Probably because gcc 4.9 is the last gcc release with C++03 used by default. I wasn't able to reproduce the build issue (without my patch) with gcc 10 or 11. I'm fine with new prerequisites for the next gcc release, I checked the release note about that. I noticed that all toolchains I've built with gcc 13.1 for other cpu target where successful with the same setup (docker image). Thanks! Best regards, Romain > > >> >> jeff
