Rust fails to build with this version of llvm

Pinging rust maintainers @luke_nukem and @federico-mena

This is already with rust 1.35

Aaron Puchert (aaronpuchert) - almost 5 years ago

author source maintainer

I thought it would be fixed by https://github.com/rust-lang/rust/pull/60313, but that is not the case. In devel:languages:rust it builds fine, and they already have llvm = 8.0.0 and llvm8 because they import devel:tools:compiler. I'm not sure what makes both builds different, perhaps it's %_with_rust_bootstrap from the project config?

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Aaron Puchert (aaronpuchert) - almost 5 years ago

author source maintainer

I think the problem is that the existing rust artifact in Staging:L is buggy. It doesn't have the patch, but uses llvm8 already, which exposes it to the issue in https://github.com/rust-lang/rust/issues/60184. (Note that the build fails in stage0.)

We should use the artifact from Factory, perhaps by removing this one. Then hopefully both builds should be fine.

It seems we're now running out of disk space with MozillaThunderbird on x86_64. This could be because the new LLVM inlines more aggressively. I'll check how much disk space we need and adapt the _constraints accordingly.

Aaron Puchert (aaronpuchert) - almost 5 years ago

author source maintainer

I have filed https://build.opensuse.org/request/show/708769.

Aaron Puchert (aaronpuchert) - almost 5 years ago

author source maintainer

It has actually nothing to do with LLVM, current builds also use more than 20 GB, and close to 24 GB.

The installcheck complains that libLLVM8-32bit is missing on x86_64. Indeed the import isn't working, but it works in devel:tools:compiler. What's the problem?

Dominique Leuenberger (dimstar) - almost 5 years ago

reviewer

OBS was being evil to us - and had a small bug. And of course it hits me most.I'm currently cleaning up that mess it created

The slow builds, especially on cloud machines with 3 GB memory, are a nuisance—we basically have -j1 there. I think 1500 MB per compile job is a little bit too much, we can probably reduce that. But I'll submit that later, for now let's hope that it works at all.