Bug#990994: llvm-12-tools cannot be installed for a foreign architecture

[Christoph Berg]

Re: Sylvestre Ledru
> > > (In buster it was still possible to install llvm-*-dev packages for foreign architectures)
> > 
> > The fix for this question is "Depends: python3:any" I believe.
> > 
> > Different take on a related issue:
> > 
> > When cross-compiling, I cannot install clang-11 and llvm-11-dev for
> > the build-architecture when installing the host-architecture
> > postgresql-server-dev-13. I think the fix is annotating (some subset
> > of) the llvm packges with "Multi-Arch: allowed".
> > 
> > Please consider applying these fixes so clang can be used for
> > cross-compilation.
> 
> If you folks want to see progress on this, I would need help. ( https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/tree/12/debian )
> I don't know how to test that properly (so, testcase which aren't rebuild postgresql would be appredciated)
> and I made too many mistakes in the past with
> the multi-arch flag to trust myself :)

Ack, I'll give that a try next week.

Christoph