Compiling Rust with GCC: an update

Posted Sep 12, 2022 22:24 UTC (Mon) by himi (subscriber, #340)
In reply to: Compiling Rust with GCC: an update by moltonel
Parent article: Compiling Rust with GCC: an update

>That was my understanding so far. But the implementation of const generics before they reached the 1.49 milestone casts a doubt. How will gccrs describe its current feature set ? "1.49 plus const generics as of 1.60 plus features X and Y" ? "1.60 except feature Z" ? Users will simplify that in their head to a single version number, and possibly write an optimistic MSRV to Cargo.toml.

Don't they just mean that during development they're targeting 1.49 for the moment, and in order to be able to support testing with the kernel (and satisfying the preference from a lot of kernel devs for having multiple compilers) they're also trying to get a move on with some more advanced features the kernel project needs? As in, they haven't set their supported version in stone, they're just using some of them as goal posts, with the kernel stuff as an additional goal post.

Presumably before they announce they're production ready for kernel builds they'll reach something a lot closer to feature parity. And presumably they'll only announce "supports version 1.foo" when they have full feature parity with version 1.foo, for exactly the reasons you've noted.

They're still in fairly early development - maybe wait until they're closer to actual release candidates before dinging them for how they're talking about feature/version support . . .