The Metal toolchain is no longer included in Xcode and needs to be downloaded separately. To make the devkit based macOS build work seamlessly we need to include the Metal toolchain in the macOS (Xcode) devkit.
Testing: Manually built devkit using Xcode 26.6 and verified that latest mainline built successfully on both macosx-aarch64 and macosx-x64 (using Rosetta). --------- - [X] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8394031: Include MetalToolchain in the macOS devkit Changes: https://git.openjdk.org/jdk/pull/33276/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33276&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8394031 Stats: 38 lines in 1 file changed: 35 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/33276.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33276/head:pull/33276 PR: https://git.openjdk.org/jdk/pull/33276
