add macOS CI

.github/workflows/linux.yml

@@ -12,9 +12,6 @@ env:
 
 jobs:
   linux_cpp14:
-    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
-    # You can convert this to a matrix build if you need cross-platform coverage.
-    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
     runs-on: ubuntu-latest
 
     steps:
@@ -31,9 +28,6 @@ jobs:
     - name: Test
       run: cd build && ./closure_test
   linux_cpp17:
-    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
-    # You can convert this to a matrix build if you need cross-platform coverage.
-    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
     runs-on: ubuntu-latest
 
     steps:

.github/workflows/macos.yml

@@ -0,0 +1,45 @@
+name: macOS
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  BUILD_TYPE: Release
+
+jobs:
+  macOS_cpp14:
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        submodules: recursive
+
+    - name: Configure CMake
+      run: mkdir build && cd build && cmake -DCMAKE_CXX_STANDARD=14 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-Werror" ..
+
+    - name: Build
+      run: cd build && make
+
+    - name: Test
+      run: cd build && ./closure_test
+  macOS_cpp17:
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Configure CMake
+        run: mkdir build && cd build && cmake -DCMAKE_CXX_STANDARD=17 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-Werror" ..
+
+      - name: Build
+        run: cd build && make
+
+      - name: Test
+        run: cd build && ./closure_test