Add libtorch-2.3 for arm64

libtorch-prebuild@2.3.rb

@@ -0,0 +1,31 @@
+class LibtorchPrebuildAT23 < Formula
+  desc "Tensors and dynamic neural networks"
+  homepage "https://pytorch.org/"
+  url "https://download.pytorch.org/libtorch/cpu/libtorch-macos-arm64-2.3.0.zip"
+  sha256 "ff86ea62ac24a27bba31490d95a8fab6beab8aab5abe72978300568c49bf2150"
+  license "BSD-3-Clause"
+
+  def install
+    system "bash", "-c", "cd include/torch; for i in csrc/api/include/torch/* ; do ln -s $i ;done"
+    system "bash", "-c", "install -d #{include}"
+    system "bash", "-c", "install -d #{lib}"
+    system "bash", "-c", "install -d #{share}"
+    system "bash", "-c", "cp -a include/* #{include}"
+    system "bash", "-c", "cp -a lib/* #{lib}"
+    system "bash", "-c", "cp -a share/* #{share}"
+  end
+
+  test do
+    (testpath/"test.cpp").write <<~EOS
+      #include <torch/torch.h>
+      #include <iostream>
+
+      int main() {
+        torch::Tensor tensor = torch::rand({2, 3});
+        std::cout << tensor << std::endl;
+      }
+    EOS
+    system ENV.cxx, "-std=c++17", "-L#{lib}", "-ltorch", "-ltorch_cpu", "-lc10", "test.cpp", "-o", "test"
+    system "./test"
+  end
+end