Also build for ARM64

.github/workflows/windows-alt.yml

@@ -71,27 +71,40 @@ jobs:
         run: cmake --build ./build --target run_tests
   clang-cl:
     if: github.repository_owner == 'aws'
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          - x64
+          - x64_arm64
     runs-on: windows-latest
     steps:
-      - name: Install NASM
+      - if: ${{ matrix.target  == 'x64' }}
+        name: Install NASM
         uses: ilammy/[email protected]
       - name: Checkout
         uses: actions/checkout@v4
       - uses: TheMrMilchmann/setup-msvc-dev@v3
         with:
-          arch: x64
+          arch: ${{ matrix.target }}
+      - name: Remove wrong clang-cl.exe
+        run: |
+          rm "C:/Program Files/LLVM/bin/clang-cl.exe"
       - name: Setup CMake
         uses: threeal/[email protected]
         with:
           generator: Ninja
           c-compiler: clang-cl
           cxx-compiler: clang-cl
           options: |
+            CMAKE_CROSSCOMPILING=${{ ((matrix.target  == 'x64') && '0') || '1' }} \
             CMAKE_SYSTEM_NAME=Windows \
-            CMAKE_SYSTEM_PROCESSOR=x86_64 \
+            CMAKE_SYSTEM_PROCESSOR=${{ ((matrix.target  == 'x64') && 'x86_64') || 'ARM64' }} \
             CMAKE_MAKE_PROGRAM=ninja.exe \
             CMAKE_BUILD_TYPE=Release \
+            CMAKE_GENERATOR_PLATFORM=${{ ((matrix.target  == 'x64') && 'x86_64') || 'ARM64' }}
       - name: Build Project
         run: cmake --build ./build --target all
-      - name: Run tests
+      - if: ${{ matrix.target  == 'x64' }}
+        name: Run tests
         run: cmake --build ./build --target run_tests