Bug#1106132: llvm-toolchain-20: Uninstallable Mesa GL libraries 25.1 on multiarch , they depend on libllvm20 or libclang-cpp20.

[Rong Zhang]

Dear Maintainer,

On Tue, 20 May 2025 13:19:41 +0900 Kyuma Ohta <whatisthis.sowhat at gmail.com> wrote:
> Source: llvm-toolchain-20
> Version: 1:20.1.4-1~exp1
> Severity: important
> 
> Dear Maintainer,
> 
> I tried to install OpenGL libraries 25.1 series at experimental (i.e. 25.1.0-1)
> in multiarch emvironment, some libraries / drivers built with llvm-20
> conflict with another architectures.
> 
> For example, I make multiarch environment both amd64 and i386, to use
> wine and steam mainly.
[...]
> And, many libraries src:mesa depends mesa-libgallium, so,
> packages built from src:mesa 25.1 aren't able to  install on multiarch
> environment (they are depended by Wine and Steam and more).
> 
> This issue is occured by changes of src:llvm-toolchain-20 1:20.1.4-1-exp1,
> 
> >[ Sylvestre Ledru ]
> >    * Drop Multi-Arch: same from packages installing to non-multiarch paths.
> >    (Closes: #1102278)
> >    Thanks to Yuce Kurum for the patch

The patch dropped Multi-Arch: same from libllvmX. Is this a mistake?

IIUC, libllvmX has been installed to multilib path for years, and Bo
YU's original patch[1] didn't touch it.

> Over and over again. This is a very serious problem, especially fo people using
> Wine and/or Steam, so I think it needs to be fixed and process BUG as "Important"
> or upper priority.
> 
> Regards,
> Ohta.
[...]

[1]: https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/merge_requests/164

Thanks,
Rong