Add macOS to CI

.github/workflows/build-majestic.yml

@@ -64,3 +64,64 @@ jobs:
       run: |
         npm ci
         npm run test
+
+  macos:
+    name: Build on macOS
+    runs-on: macOS-11
+
+    steps:
+    - uses: actions/checkout@v2
+
+    # All these are already available in GitHub runner
+    # - name: Install build tools
+    #   run: |
+    #     sudo apt-get update
+    #     sudo apt-get install -y \
+    #       autoconf \
+    #       automake \
+    #       libtool \
+    #       make \
+    #       g++
+
+    - name: Build C runtime
+      working-directory: ./src/runtime/c
+      run: |
+        autoreconf -i
+        ./configure
+        make
+        sudo make install
+
+    - name: Setup Haskell
+      uses: haskell/actions/setup@v1
+      # with:
+      #   ghc-version: '8.6'
+      #   cabal-version: '2.4.1.0'
+
+    - name: Run Haskell testsuite
+      working-directory: ./src/runtime/haskell
+      env:
+        LD_LIBRARY_PATH: /usr/local/lib
+      run: |
+        cabal test --extra-lib-dirs=/usr/local/lib
+
+    # - name: Install Python bindings
+    #   working-directory: ./src/runtime/python
+    #   run: |
+    #     python setup.py build
+    #     sudo python setup.py install
+    #
+    # - name: Run Python testsuite
+    #   working-directory: ./src/runtime/python
+    #   env:
+    #     LD_LIBRARY_PATH: /usr/local/lib
+    #   run: |
+    #     pip install pytest
+    #     pytest
+    #
+    # - name: Run JavaScript testsuite
+    #   working-directory: ./src/runtime/javascript
+    #   env:
+    #     LD_LIBRARY_PATH: /usr/local/lib
+    #   run: |
+    #     npm ci
+    #     npm run test