Add a test pipeline

.github/workflows/build.yml

@@ -0,0 +1,34 @@
+name: Test pipeline
+
+on:
+  #push:
+  #  branches:
+  #    - "**"
+  # Runs triggered by pull requests are disabled to prevent executing potentially unsafe code from public pull requests
+  # pull_request:
+  #   branches:
+  #     - main
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+
+  job1:
+
+    runs-on:
+#      - windows-2019
+      - macos-latest
+    env:
+      zlib_dir: C:\dep\zlib
+
+    steps:
+
+      - uses: actions/checkout@v2
+
+      - name: Run a command
+        run: |
+          pwd
+          mkdir aaa
+          readlink -f aaa
+          readlink -f bbb