Add macOS CI workflow and update CMake presets for vcpkg integration

.github/workflows/cmake-multi-platform.yml

@@ -84,3 +84,39 @@ jobs:
       - name: Run unit_tests.exe
         shell: bash
         run: ./out/Release/unit_tests.exe
+
+  ##############################################################################
+  # 3)  macOS  –  AppleClang / Ninja
+  ##############################################################################
+  macosx-build-and-test:
+    name: macOS (AppleClang)
+    runs-on: macOS-latest
+    env:
+      VCPKG_ROOT: ${{ github.workspace }}/vcpkg
+    steps:
+      - name: Install basic tool-chain with Homebrew
+        shell: bash
+        run: |
+          brew install cmake ninja
+
+      - name: Checkout repository (with sub-modules)
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Set up vcpkg
+        shell: bash
+        run: |
+          git clone https://github.com/microsoft/vcpkg "$VCPKG_ROOT"
+
+      - name: Configure (cmake --preset)
+        shell: bash
+        run: cmake --preset darwin-release-vcpkg -DOMATH_BUILD_TESTS=ON -DOMATH_BUILD_BENCHMARK=OFF -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests"
+
+      - name: Build
+        shell: bash
+        run: cmake --build cmake-build/build/darwin-release-vcpkg --target unit_tests omath
+
+      - name: Run unit_tests
+        shell: bash
+        run: ./out/Release/unit_tests

CMakePresets.json

@@ -127,14 +127,26 @@
       "binaryDir": "${sourceDir}/cmake-build/build/${presetName}",
       "installDir": "${sourceDir}/cmake-build/install/${presetName}",
       "cacheVariables": {
-        "CMAKE_CXX_COMPILER": "clang++"
+        "CMAKE_CXX_COMPILER": "clang++",
+        "CMAKE_MAKE_PROGRAM": "ninja"
       },
       "condition": {
         "type": "equals",
         "lhs": "${hostSystemName}",
         "rhs": "Darwin"
       }
     },
+    {
+      "name": "darwin-base-vcpkg",
+      "hidden": true,
+      "inherits": "darwin-base",
+      "cacheVariables": {
+        "OMATH_BUILD_VIA_VCPKG": "ON",
+        "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
+        "VCPKG_INSTALLED_DIR": "${sourceDir}/cmake-build/vcpkg_installed",
+        "VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2"
+      }
+    },
     {
       "name": "darwin-debug",
       "displayName": "Darwin Debug",
@@ -146,23 +158,23 @@
     {
       "name": "darwin-debug-vcpkg",
       "displayName": "Darwin Debug",
-      "inherits": "darwin-base",
+      "inherits": "darwin-base-vcpkg",
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Debug"
       }
     },
     {
       "name": "darwin-release",
       "displayName": "Darwin Release",
-      "inherits": "darwin-debug",
+      "inherits": "darwin-base",
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Release"
       }
     },
     {
       "name": "darwin-release-vcpkg",
       "displayName": "Darwin Release",
-      "inherits": "darwin-debug",
+      "inherits": "darwin-base-vcpkg",
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Release"
       }