Add meeting notes 2024-11-27 #2388
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| - [x] (WV) multi-output cache for v1 recipes | ||
| - [x] Already available with `--experimental` | ||
| - [x] Wrote up a (proto)-CEP https://github.com/conda/ceps/pull/102 | ||
| - [x] (UK) `-fno-omit-frame-pointer` |
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What was the outcome of this discussion? I remember that @jjerphan and colleagues were interested in this. AFAIU it's an ABI break though, so we'd probably have to queue that up for whenever we rebuild the world?
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For such a change, I would be more than prudent and assume that ABI-compatibility depends on platforms.
If they were to be activated again, I guess the best would be to have a conda-forge reboot or at least a batch rebuild for an entire set of packages.
See this part of Fedora Project Wiki for more information.
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Is it actually an ABI break to activate frame pointers? That sounds unexpected to me: you can compile any code with or without frame pointers, and still link to the same existing third-party or system libs.
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@xhochy was going to make a PR and see what people said
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Yes, but could it in practice alter some calling conventions?
I am not knowledgeable or experienced enough to be able to tell; I think it might be worth contacting people who re-activated them on RPM-based or DEB-based distributions.
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For such a change, I would be super prudent and assume that ABI-compatibility depends on platforms.
Actually, I'm confused about whether this would change the ABI. My understanding is that a specific register is always filled, independent of whether the function uses it or not. I don't think this should be a world-rebuilt.
Let's move this discussion to the PR over here: conda-forge/clang-compiler-activation-feedstock#151
New meeting notes available at https://hackmd.io/@conda-forge/SkSj0ONmJx.
Once done with the meeting, sync the note back to the repository by adding the
sync-hackmd-noteslabel.