add build action for unsupported platforms (#7)

Fix acquire-python build failures on Ubuntu and Mac

.github/workflows/unsupported_build.yml

@@ -0,0 +1,42 @@
+name: Unsupported platform build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        build_type: [ Debug, Release ]
+        platform: [ "ubuntu-latest", "macos-latest" ]
+
+    runs-on: ${{ matrix.platform }}
+
+    permissions:
+      actions: write
+
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+        with:
+          access_token: ${{ github.token }}
+
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: CMake
+        run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.build_type}}
+
+      - name: Build
+        run: |
+          cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}}
+          cpack --config ${{github.workspace}}/build/CPackConfig.cmake -C ${{matrix.build_type}} -G ZIP
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: ${{matrix.platform}} ${{matrix.build_type}} binaries
+          path: ${{github.workspace}}/*.zip