On Sat, Dec 18, 2021, at 5:06 PM, Fabio Valentini wrote: > > Sure, I saw that ticket. But I fail to see how this is this a "new problem". > If you use, for example, some shiny, new features that are only going > to be in GCC 12 or LLVM 14, There's a *big* difference between Go and C/C++/Rust though, which is that the version of the Go compiler you use at build time becomes the version of the Go *runtime* statically linked into your binary, with implications for things like GC performance. Go's 6-month cadence is also much faster than C/C++ (though also much slower than Rust's, but the Rust 6 week releases are also smaller, and anyways generally the ecosystem is OK with "older" Rust compilers). Also relating to the release cycle, Go releases tend to add new features that parts of the ecosystem adapt relatively quickly. That seems likely to continue with 1.18 and the early generics. > you'd be out of luck on stable Fedora > branches, as well. Not quite; one doesn't need to use the single Go compiler version in RPM form from Fedora except currently when shipping software built as Fedora RPMs. (I know this was implicit in this discussion, but it's worth noting because people can and do get the Go compiler from e.g. upstream on Fedora systems too to build and ship software outside of the Fedora package collection itself) That said, I don't quite understand why it's so complex to use modularity as part of building non-modular RPMs. (But I know this was extensively discussed, I didn't follow it really) It seems like it's more about maintaining multiple builds of the compiler/runtime. It's interesting to note that in CentOS Stream 8, go-toolset is modularized, but that's not true in CentOS Stream 9. Also related to this, it's worth looking at what others do; e.g. NixOS seems to maintain a few versions of Go: https://github.com/NixOS/nixpkgs/tree/master/pkgs/development/compilers/go But they only have one Rust version. Although there are a ton of derivations for gcc and llvm, I suspect only a few are used. It looks like Debian ships package+versions, e.g. `golang` is 1.17, and there's `golang-1.15` in unstable. _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
