releases: use LLVM 18 for macOS #30022
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depends/packages/native_llvm.mk
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this download link works but ubuntu-18?
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this download link works but ubuntu-18?
This should be fixed in LLVM 19: https://discourse.llvm.org/t/rfc-improve-binary-security/78121/56
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Yea. While using the pre-built bins, we have to take what is available. For some reason the person building the x86_64 bins here has reverted to that. It also means we'll need to revert to installing libtinfo5 in the macOS CI, which is also annoying, because you also can't actually install that on Ubuntu 24.04 (although we currently still use 22.04 here, so it'll work for now).
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Or waiting after #21778, which should be fine as well, as there is no rush to use clang 18?
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It should be possible now to nuke this and require the user (if they want to cross-compile to macOS) to type apt install clang-18 instead?
I presume leaving this to the user will allow to run the cross-compile on more distros and arches, as opposed to being possibly confined to x86_64-linux-gnu-ubuntu when using the llvm artefacts?
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Yea, the plan is to switch away from vendoring Clang entirely, which is more straightforward now that #21778 is merged. I'll be followingup.
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Guix builds (on x86_64) [untrusted test-only build, possibly unsafe, not for production use] |
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Patch Qts internal libpng to resolve the failure.
Version is 18.1.6.
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Bumps the Guix time-machine to include a bump to LLVM 18.1.6: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=1fa1325c0b4bb5c28e564526f387d82083733104. Can split this out given it effects all releases.
Needs another patch to Qt. It's internal libpng build is broken with the newer Clang, due to:
See https://releases.llvm.org/18.1.0/tools/clang/docs/ReleaseNotes.html?1=#clang-frontend-potentially-breaking-changes.