Bug#1118512: rocm-llvm doesn't build on riscv64

[Cordell Bloor <cgmb@slerp.xyz>]

Hi Matthias,

On 2025-10-21 06:46, Matthias Klose (Ubuntu) wrote:
> rocm-llvm doesn't build on riscv64, the libhsa-runtime-dev build 
> dependency is not available, and rocr-runtime's b-d 
> rocm-device-libs-21 (built by rocm-llvm) is also not available.

This is, unfortunately, due to a circular dependency between 
src:rocm-llvm and src:rocr-runtime. I forgot about that when I added 
riscv64 to the architecture list. A proposed a fix for this on the 
mailing list [1], but it basically is splitting rocm-device-libs-21 out 
into its own source package to break the circular dependency. It 
shouldn't be hard. The device libraries are basically built using an 
isolated source tree in a separate step in src:rocm-llvm anyway.

Sincerely,
Cory Bloor

[1]: https://lists.debian.org/debian-ai/2025/10/msg00088.html