Add metal headers on macos

Author: lkeegan

.github/workflows/release.yml

@@ -32,6 +32,7 @@ env:
   SCOTCH_VERSION: "v7.0.9"
   NLOPT_VERSION: "v2.10.0"
   CUDA_REDIST_VERSION: "13.2.51"
+  METALCPP_VERSION: "macOS14.2_iOS17.2"
 concurrency:
   group: release-${{ github.ref }}
   cancel-in-progress: true

build.sh

@@ -830,6 +830,11 @@ cd ../../
 
 install_cuda_bundle
 
+if [ "$OS" = "osx-arm64" ]; then
+    wget "https://developer.apple.com/metal/cpp/files/metal-cpp_${METALCPP_VERSION}.zip" -O metalcpp.zip
+    unzip metalcpp.zip -d "${INSTALL_PREFIX}"
+fi
+
 ccache --show-stats
 
 mkdir artefacts