On Mon, 2021-02-08 at 18:56 +0100, Alessandro Barbieri wrote: > Il Lun 8 Feb 2021, 12:19 Michał Górny <[email protected]> ha scritto: > > > Hi, > > > > FYI the developers of dev-python/cryptography decided that Rust is going > > to be mandatory for 1.5+ versions. It's unlikely that they're going to > > provide LTS support or security fixes for the old versions. > > > > Since cryptography is a very important package in the Python ecosystem, > > and it is an indirect dependency of Portage, this means that we will > > probably have to entirely drop support for architectures that are not > > supported by Rust. > > > > According to upstream platform support information [1], this probably > > means (eventually) entirely removing the following architectures: > > - alpha (stable) > > - hppa (stable) > > - ia64 (stable) > > - m68k (exp) > > - s390 (except for s390x, exp) > > > > Furthermore, the Gentoo Rust packages are missing support > > for the following platforms, apparently supported upstream: > > - mips (exp) > > - ppc (32) (stable) > > - sparc (stable) > > - s390x (exp) > > - riscv (stable) > > > > Apparently it's non-trivial to bootstrap Rust on these platforms, > > so it's unclear when Gentoo is going to start providing Rust on them. > > > > I've raised a protest on the cryptography bug tracker [2] but apparently > > upstream considers Rust's 'memory safety' more important than ability to > > actually use the package. > > > > Honestly, I don't think it likely that Rust will gain support for these > > platforms. This involves a lot of work, starting with writing a new > > LLVM backend and getting it accepted (getting new code into LLVM is very > > hard unless you're doing that on behalf one of the big companies). You > > can imagine how much effort that involves compared to rewriting the new > > code from Cryptography into C. > > > > If we can't convince upstream, I'm afraid we'll either have to drop > > these architectures entirely or fork Cryptography. > > > > > > [1] https://doc.rust-lang.org/nightly/rustc/platform-support.html > > [2] https://github.com/pyca/cryptography/issues/5771 > > > > -- > > Best regards, > > Michał Górny > > > > Should we shed tears for those legacy architectures or move forward? Does > anyone really use them in production?
I'm pretty sure people do use them in production. Whether we want to really continue supporting them is a separate topic. But the last thing I'd like to do is drop support for arches because of a single upstream maintainer being a Rust lover. -- Best regards, Michał Górny
