Bug#947165: transition: llvm-defaults to 9

[Adrian Bunk <bunk@debian.org>]

On Fri, Dec 27, 2019 at 10:43:11AM +0100, Paul Gevers wrote:
>...
> > Besides rustc, it should not have an impact on rust.
> 
> But rustc is having issues migrating, so this is something I am worried
> about.

rustc hardcodes the llvm version (and already uses 9),
so rustc is not part of this transition.

> Also, do you understand why rust-bindgen and rust-clang-sys are
> mentioned in the tracker? I looked *briefly* but didn't spot the
> connection yet.
>...

They build-depend on llvm/clang, not sure whether they are actually part 
of the transition.

According to dak they are leaf packages in bullseye,
so potential rust related issues with this transition
could be handled with removal hints.

> Paul

cu
Adrian