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Upgrade to XCode 16 #22031
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FWIW, Xcode 15.3 seems to be at odds with updated bazel tool chain rules as well:
See on macos 14.7, xcode 15.3. |
I've got a local fleet of macs with macos 14.7, xcode 16. None of them can build drake without link-time failures. If I downgrade to 15.4 (currently), all is well. I think we need to figure out how to have Drake live with xcode 16. It doesn't necessarily block this CI work. I'll file a separate issue to track the gory Drake details. |
New(?) approach:
|
Is your feature request related to a problem? Please describe.
In #21529 and #22029, we discovered that the standard library in XCode 14 and 15 is missing some support for spaceship (
<=>
).Describe the solution you'd like
Upgrade our macOS Sonoma CI image(s) to XCode 16.
When creating our macOS Sequoia CI image(s), use XCode 16.
Of course then also we need to update our docs to reflect current CI, e.g.:
Describe alternatives you've considered
Pollute our code with backcompat work-arounds.
Additional context
This is not an emergency. It can wait until we are already reworking the CI images.
In particular the until we do the #21910 Sequoia images and resize the images for #21977.
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