ci: add macOS and Windows builds

Author: kuldeepmeel

.github/workflows/ci.yml

@@ -6,20 +6,43 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout (with submodules)
         uses: actions/checkout@v4
         with:
           submodules: recursive
 
-      - name: Install dependencies
+      - name: Install dependencies (Linux)
+        if: runner.os == 'Linux'
         run: |
           sudo apt-get update
           sudo apt-get install -y build-essential cmake libboost-all-dev
 
+      - name: Install dependencies (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew update
+          brew install cmake boost
+
+      - name: Install dependencies (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          choco install -y cmake --installargs 'ADD_CMAKE_TO_PATH=System'
+          choco install -y boost-msvc-14.3
+
       - name: Configure
         run: cmake -S . -B build -DCMAKE_POLICY_VERSION_MINIMUM=3.5
 
-      - name: Build
+      - name: Build (Windows)
+        if: runner.os == 'Windows'
+        run: cmake --build build --config Release
+
+      - name: Build (Linux/macOS)
+        if: runner.os != 'Windows'
         run: cmake --build build -- -j2