Hello, The macOS 26 Tahoe Problem wiki page mentions that the Metal toolchain is no longer bundled in Xcode [0], and that the solution is to install the toolchain by running `xcodebuild -downloadComponent MetalToolchain`.
OpenJDK 17, 21 and 25 (the 3 most recent Long Term Support versions) all require the Metal toolchain to build on macOS, but I haven’t been able to build these ports from source on macOS 26 yet. There is a ticket about this [1], but as far as I understand so far nobody has been able to get these ports to build on their local machine. Apparently Ryan Carsten Schmidt has installed the Metal toolchain on the buildbots, and got some success there, but I submitted an openjdk25 port [2] and while it built successfully on macOS 12-15, it failed to find the Metal toolchain on macOS 26 arm64 buildbot. Does anyone else have any ports that require this toolchain and build successfully on macOS 26? Does anyone have any idea how we could move forward with these OpenJDK ports whose configure scripts fail to find the Metal toolchain? Thanks, Nils. [0] https://trac.macports.org/wiki/TahoeProblems#MetaltoolchainisnolongerbundledinXcode [1] https://trac.macports.org/ticket/73008 [2] https://ports.macports.org/port/openjdk25/details/
