We should probably ensure that all our builds are built using the same version of the SDK (we'd expect builds to be built with the macOS 11 SDK at the moment). Could we explicitly set the Xcode that is being used using `xcode-select`? Can this happen during configure before `xcrun --show-sdk-path`? Is it safe to assume that the Xcode containing the macOS 11 SDK is installed in a predictable path? Bug 1686129 would make it seem so, but not sure what specific Xcode is actually installed on these machines.
Bug 1696513 Comment 13 Edit History
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We should probably ensure that all our builds are built using the same version of the SDK (we'd expect builds to be built with the macOS 11 SDK at the moment). Could we explicitly set the Xcode that is being used using `xcode-select`? Can this happen during configure before `xcrun --show-sdk-path`? Is it safe to assume that the Xcode containing the macOS 11 SDK is installed at a predictable path? Bug 1686129 would make it seem so, but not sure what specific Xcode is actually installed on these machines.