Control: tags -1 moreinfo
On Tue, Jun 09, 2026 at 03:20:25AM -0400, Andres Salomon wrote:
>...
> [ Impact ]
> Minimal, as this only impacts packages which intentionally choose to build
> against llvm-toolchain-22.
>
> Note that this version of llvm-toolchain-$VERSION (unlike past versions)
> builds libc++1, libc++abi1, and llvm-libunwind1 packages *without* the major
> version in the package name. This could cause problems in future backports
> of llvm-toolchain-$VERSION, but won't be a problem for trixie since it was
> released with an older version of llvm-toolchain-19 that included libc++1-19
> (and friends).
This is a problem for trixie, where these unversioned packages are built
from src:llvm-defaults.
# apt-get install starpu-examples/trixie libomp5/sid
...
The following packages have unmet dependencies:
libomp5 : Conflicts: libomp-x.y
libomp5-19 : Conflicts: libomp-x.y
E: Unable to correct problems, you have held broken packages.
E: The following information from --solver 3.0 may provide additional context:
Unable to satisfy dependencies. Reached two conflicting decisions:
1. libomp5-19:amd64 is selected for install because:
1. starpu-examples:amd64=1.4.7+dfsg-2 is selected for install
2. starpu-examples:amd64=1.4.7+dfsg-2 Depends libomp5-19 (>= 0.20130412)
2. libomp5-19:amd64 is not selected for install because:
1. libomp5:amd64=1:22.1.7-1 is selected for install
2. libomp5-19:amd64 Conflicts libomp-x.y
[selected libomp5:amd64=1:22.1.7-1]
#
In practice this might mean that when both starpu-examples/trixie and
libomp5/trixie are installed, then llvm-toolchain-22/1:22.1.7-1~deb13u1
in trixie might result in a dist-upgrade removing starpu-examples.
>...
> + * Change build-dep from sid's llvm-spirv-22 to trixie's llvm-spirv-19.
>...
I assume that didn't run into #1128822, adding trixie to SPIRV_DISABLE_DISTRO
would be an alternative.
cu
Adrian
