thanks Greg, On Tue, Feb 15, 2022 at 8:51 PM Gregory Farnum <gfarnum@xxxxxxxxxx> wrote: > > On Thu, Feb 10, 2022 at 8:36 AM Casey Bodley <cbodley@xxxxxxxxxx> wrote: > > > > the R release could be a good opportunity to make the switch to c++20 > > > > gcc and clang both track their support for c++20 features over > > compiler versions in: > > https://gcc.gnu.org/projects/cxx-status.html#cxx20 > > https://clang.llvm.org/cxx_status.html#cxx20 > > > > thanks to the dev toolset in rhel/centos, we should already have > > access to compilers that support c++20. for ubuntu, focal is still on > > gcc-9 which doesn't understand -std=c++20 at all, but clang-10 does > > > > if we're willing to switch our ubuntu builds to clang, we could start > > experimenting with c++20 on master now. otherwise, we can wait for the > > jammy release in april > > Don't forget we also need to keep building for older distros. I know can we be more specific about this requirement? are you saying that the R release still needs to build on ubuntu focal? or that our octopus/pacific/quincy releases do? > it's supposed to be possible and sometimes we've managed to > cross-build, but it always seems to be hit-or-miss on any given > distro/compiler version. i'm not sure what you mean by cross-build here - is that about CI using different distros/compilers depending on the ceph branch? > That would be my main concern. > -Greg > > > > > in the longer term, i'd love to take advantage of c++20's modules to > > speed up ceph builds, but it could take another year or so before > > cmake and the compilers support everything we need > > > > are there any other concerns or obstacles to making this switch? > > > > _______________________________________________ > > Dev mailing list -- dev@xxxxxxx > > To unsubscribe send an email to dev-leave@xxxxxxx > > > _______________________________________________ Dev mailing list -- dev@xxxxxxx To unsubscribe send an email to dev-leave@xxxxxxx
