Bug 2086206

I can't reproduce this in clean mock f36, nor in rawhide.

What does your "update-alternatives --display llvm-config-13" say?

Without llvm13-devel installed:

$ update-alternatives --display llvm-config-13
llvm-config-13 - status is auto.
 link currently points to /usr/bin/llvm-config-64
/usr/bin/llvm-config-64 - priority 64
Current `best' version is /usr/bin/llvm-config-64.


With llvm13-devel installed:

$ update-alternatives --display llvm-config-13
llvm-config-13 - status is auto.
 link currently points to /usr/bin/llvm-config-64
/usr/bin/llvm-config-64 - priority 64
/usr/lib64/llvm13/bin/llvm-config-13-64 - priority 64
Current `best' version is /usr/bin/llvm-config-64.


And yeah I didn't mention it but this is on a system upgraded from Fedora 35.

I see -- there's an llvm-devel %postun, but that only takes effect for uninstall (if [ $1 -eq 0 ]), not upgrades (where $1 is 1).

I can reproduce this in mock:

$ mock -r fedora-35-x86_64 install llvm-devel
$ mock -r fedora-35-x86_64 --dnf-cmd update --releasever 36 llvm-devel --nogpgcheck
$ mock -r fedora-35-x86_64 --shell -- update-alternatives --list | grep llvm
llvm-config-13          auto    /usr/bin/llvm-config-64
llvm-config             auto    /usr/bin/llvm-config-64
llvm-config-14          auto    /usr/bin/llvm-config-64

So I'm reassigning this to llvm, as it's not really llvm13's fault.

I'm not sure what is the right answer here. Given the ordering[1] of scriptlets, we could unconditionally remove the old in %postun, and then add the new in %posttrans, but that probably won't do the right thing if the user actually had made a choice of alternatives.

[1]: https://docs.fedoraproject.org/en-US/packaging-guidelines/Scriptlets/#ordering

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