.github/workflows/macos-matrix.yml: add macos matrix

.github/workflows/macos-matrix.yml

@@ -0,0 +1,50 @@
+name: macos-matrix
+
+# Controls when the action will run.
+on:
+  pull_request:
+    branches:
+      - '*'
+      - '*/*'
+      - '**'
+      - 'master'
+      - 'main'
+  push:
+    branches:
+      - '*'
+      - '*/*'
+      - '**'
+      - 'master'
+      - 'main'
+
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  macos-build_and_test:
+    strategy:
+      matrix:
+        os: [macos-latest, macos-11, macos-12]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: styfle/cancel-workflow-action@0.9.1
+        with:
+          access_token: ${{ github.token }}
+      - uses: actions/checkout@v2
+      - name: printenv
+        run: |
+          brew install libtool autoconf automake 
+          printenv
+      - name: make
+        run: |
+          make
+      - name: sudo make install
+        run: |
+          sudo make install
+      - name: man nostril
+        run: |
+          man nostril
+      - name: sudo -su runner nostril
+        run: |
+          #pipe handles non-zero return from nostril default help
+          sudo -su runner nostril        | echo "${PIPESTATUS[0]}"