Setup CI for macos15 with qt6

Author: Viktor Kopp

.github/workflows/BuildPR.yml

@@ -106,6 +106,35 @@ jobs:
         with:
           name: DLTViewer-${{ matrix.macos }}-${{ matrix.abi }}
           path: build/dist/DLTViewer*.tgz
+  
+  buildMacOS15:
+    name: Build macOS
+    runs-on: macos-15
+    strategy:
+      fail-fast: false
+      matrix:
+        abi: [ arm64 ]
+        xcode: [ Xcode ]
+      
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: true
+      - name: Investigate available XCode versions
+        run: ls -n /Applications/ | grep Xcode*
+      - name: Set XCode Version
+        run: |
+          sudo xcode-select -s /Applications/${{ matrix.xcode }}.app
+          xcodebuild -version
+          xcode-select --print-path
+      - name: Install build environment
+        run: scripts/darwin/install_qt6.sh
+      - name: Show cmake version
+        run: cmake --version
+      - name: Build project
+        run: scripts/darwin/build_cmake_qt6.sh
 
 
   buildUbuntu22and24: