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

[Sylvestre Ledru]

Hello,

Le 17/09/2021 à 15:28, Christoph Berg a écrit :
> Re: Michel Dänzer
>> Package: llvm-12-tools
>> Version: 1:12.0.1~+rc4-1
>> Severity: normal
>>
>> llvm-12-tools requires python3 packages from the same architecture. This prevents installing llvm-12-tools (and by extension llvm-12-dev) for a foreign architecture.
>>
>> E.g. trying to install llvm-12-tools:i386 with aptitude gives:
>>
>>   llvm-12-tools:i386 : Depends: python3:i386 but it is not going to be installed
>>                        Depends: python3-yaml:i386 but it is not going to be installed
>>
>> See https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9833/diffs?commit_id=af0fde955c518447ccd92134517b4e69308e10b2#3f46a9fa9651371b76f0894b75d719a4c5659642_44_45 for how I had to work around this in Mesa's upstream CI.
>>
>> (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 :)


thanks,
S