Fix failing GitHub Actions jobs in maui-build workflow

.github/workflows/codegen-tests.yml

@@ -0,0 +1,102 @@
+name: Codegen Tool Tests
+
+# Builds the codegen tool and runs the unit-test suite (xUnit).
+# Runs on Linux (fast, cheap) and can be extended to macOS/Windows.
+
+on:
+  push:
+    paths:
+      - 'tools/codegen/**'
+      - 'src/Framework/**'
+      - 'src/Framework.Tests/**'
+      - '.github/workflows/codegen-tests.yml'
+      - 'Directory.Build.props'
+  pull_request:
+    paths:
+      - 'tools/codegen/**'
+      - 'src/Framework/**'
+      - 'src/Framework.Tests/**'
+      - '.github/workflows/codegen-tests.yml'
+      - 'Directory.Build.props'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Test (.NET ${{ matrix.dotnet }})
+    runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        dotnet: ['9.0.x']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ matrix.dotnet }}
+
+      - name: Restore
+        run: |
+          FerrumSkipMobile=true dotnet restore tools/codegen/Ferrum.Codegen.csproj
+          FerrumSkipMobile=true dotnet restore src/Framework/Ferrum.Framework.csproj
+          FerrumSkipMobile=true dotnet restore src/Framework.Tests/Ferrum.Framework.Tests.csproj
+
+      - name: Build
+        run: |
+          FerrumSkipMobile=true dotnet build tools/codegen/Ferrum.Codegen.csproj   --no-restore -c Release
+          FerrumSkipMobile=true dotnet build src/Framework/Ferrum.Framework.csproj --no-restore -c Release
+          FerrumSkipMobile=true dotnet build src/Framework.Tests/Ferrum.Framework.Tests.csproj --no-restore -c Release
+
+      - name: Test
+        run: |
+          FerrumSkipMobile=true dotnet test src/Framework.Tests/Ferrum.Framework.Tests.csproj \
+            --no-build -c Release \
+            --logger "trx;LogFileName=test-results.trx" \
+            --logger "console;verbosity=normal"
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results-${{ matrix.dotnet }}
+          path: '**/*.trx'
+
+  # Smoke-test the CLI: parse the in-tree add.h and verify zero exit code
+  codegen-smoke:
+    name: Codegen smoke test
+    runs-on: ubuntu-24.04
+    needs: test
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Build codegen
+        run: FerrumSkipMobile=true dotnet build tools/codegen/Ferrum.Codegen.csproj -c Release
+
+      - name: Run codegen on test stub header
+        run: |
+          FerrumSkipMobile=true dotnet run --project tools/codegen/Ferrum.Codegen.csproj \
+            --configuration Release \
+            -- \
+            --input  native/test_stub/include/add.h \
+            --output /tmp/AddBindings.cs \
+            --ns     Ferrum.Generated \
+            --class  AddBindings \
+            --lib    __Internal
+
+      - name: Verify output
+        run: |
+          echo "=== Generated bindings ==="
+          cat /tmp/AddBindings.cs
+          # Ensure [LibraryImport] and the function name are present
+          grep -q "\[LibraryImport" /tmp/AddBindings.cs
+          grep -q "ferrum_add"      /tmp/AddBindings.cs
+          echo "==> Smoke test passed"

.github/workflows/maui-build.yml

@@ -0,0 +1,106 @@
+name: MAUI Build
+
+# Builds the Ferrum.Framework library and the MinimalDemo sample app.
+# The iOS build requires macOS; Android can be built on ubuntu.
+#
+# NOTE: The native libraries (XCFramework / .so) must already be available
+# as artifacts from the native-build workflow before this workflow can
+# produce a fully linkable app binary.  In the absence of the native libs,
+# this workflow validates that the managed code compiles cleanly.
+
+on:
+  push:
+    paths:
+      - 'src/**'
+      - 'samples/**'
+      - '.github/workflows/maui-build.yml'
+      - 'Directory.Build.props'
+  pull_request:
+    paths:
+      - 'src/**'
+      - 'samples/**'
+      - '.github/workflows/maui-build.yml'
+      - 'Directory.Build.props'
+
+permissions:
+  contents: read
+
+jobs:
+  # ── Framework library build ────────────────────────────────────────────────
+  framework:
+    name: Framework (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-15]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Install MAUI workload
+        run: dotnet workload install maui
+
+      - name: Build Ferrum.Framework (all TFMs)
+        run: |
+          dotnet build src/Framework/Ferrum.Framework.csproj \
+            -c Release
+
+  # ── MAUI iOS build ─────────────────────────────────────────────────────────
+  ios-maui:
+    name: MAUI iOS build
+    runs-on: macos-15
+    needs: framework
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: sudo xcode-select --switch /Applications/Xcode_16.2.app
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Install MAUI workload
+        run: dotnet workload install maui
+
+      - name: Build MinimalDemo (iOS — no signing)
+        run: |
+          dotnet build samples/MinimalDemo/MinimalDemo.csproj \
+            -f net9.0-ios \
+            -c Release \
+            /p:RuntimeIdentifier=ios-arm64 \
+            /p:CodesignKey="" \
+            /p:CodesignProvision=""
+
+  # ── MAUI Android build ─────────────────────────────────────────────────────
+  android-maui:
+    name: MAUI Android build
+    runs-on: ubuntu-24.04
+    needs: framework
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Install Android workload
+        run: dotnet workload install android
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Build MinimalDemo (Android)
+        run: |
+          dotnet build samples/MinimalDemo/MinimalDemo.csproj \
+            -f net9.0-android \
+            -c Release

.github/workflows/native-build.yml

@@ -0,0 +1,149 @@
+name: Native Build (iOS & Android)
+
+# Builds the native static/shared libraries for all supported platforms and
+# ABIs, then uploads the artifacts for use by the MAUI build workflow.
+#
+# Triggered on every push and pull request that touches native code or the
+# build scripts.
+
+on:
+  push:
+    paths:
+      - 'native/**'
+      - '.github/workflows/native-build.yml'
+  pull_request:
+    paths:
+      - 'native/**'
+      - '.github/workflows/native-build.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  # ── iOS XCFramework ────────────────────────────────────────────────────────
+  ios:
+    name: iOS XCFramework (${{ matrix.platform }})
+    runs-on: macos-15
+    strategy:
+      matrix:
+        include:
+          - platform: OS64
+            sysroot: iphoneos
+            label: device-arm64
+          - platform: SIMULATORARM64
+            sysroot: iphonesimulator
+            label: sim-arm64
+          - platform: SIMULATOR64
+            sysroot: iphonesimulator
+            label: sim-x86_64
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: sudo xcode-select --switch /Applications/Xcode_16.2.app
+
+      - name: Configure CMake
+        run: |
+          cmake -S native \
+                -B .build/ios/${{ matrix.label }} \
+                -DCMAKE_TOOLCHAIN_FILE="${{ github.workspace }}/native/cmake/ios.toolchain.cmake" \
+                -DPLATFORM=${{ matrix.platform }} \
+                -DDEPLOYMENT_TARGET=15.0 \
+                -DCMAKE_BUILD_TYPE=Release \
+                -GXcode
+
+      - name: Build
+        run: |
+          cmake --build .build/ios/${{ matrix.label }} \
+                --config Release \
+                --target ferrum_test_stub
+
+      - name: Upload slice artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ios-${{ matrix.label }}
+          path: .build/ios/${{ matrix.label }}/Release-${{ matrix.sysroot }}/libferrum_test_stub.a
+
+  # Assemble the full XCFramework from the three slices
+  ios-xcframework:
+    name: Assemble XCFramework
+    runs-on: macos-15
+    needs: ios
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: ios-device-arm64
+          path: .slices/device
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: ios-sim-arm64
+          path: .slices/sim-arm64
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: ios-sim-x86_64
+          path: .slices/sim-x86_64
+
+      - name: Create fat simulator library
+        run: |
+          lipo -create \
+            .slices/sim-arm64/libferrum_test_stub.a \
+            .slices/sim-x86_64/libferrum_test_stub.a \
+            -output .slices/sim-fat/libferrum_test_stub.a
+
+      - name: Create XCFramework
+        run: |
+          mkdir -p artifacts/ios
+          xcodebuild -create-xcframework \
+            -library .slices/device/libferrum_test_stub.a \
+            -library .slices/sim-fat/libferrum_test_stub.a \
+            -output artifacts/ios/libferrum_test_stub.xcframework
+
+      - name: Upload XCFramework
+        uses: actions/upload-artifact@v4
+        with:
+          name: ios-xcframework
+          path: artifacts/ios/libferrum_test_stub.xcframework
+
+  # ── Android .so per ABI ────────────────────────────────────────────────────
+  android:
+    name: Android (${{ matrix.abi }})
+    runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        abi: [arm64-v8a, armeabi-v7a, x86_64, x86]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up NDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install NDK
+        run: sdkmanager "ndk;27.2.12479018"
+
+      - name: Configure CMake
+        run: |
+          NDK_ROOT="${ANDROID_SDK_ROOT}/ndk/27.2.12479018"
+          cmake -S native \
+                -B .build/android/${{ matrix.abi }} \
+                -DCMAKE_TOOLCHAIN_FILE="${NDK_ROOT}/build/cmake/android.toolchain.cmake" \
+                -DANDROID_ABI=${{ matrix.abi }} \
+                -DANDROID_PLATFORM=android-24 \
+                -DCMAKE_BUILD_TYPE=Release
+
+      - name: Build
+        run: |
+          cmake --build .build/android/${{ matrix.abi }} \
+                --config Release \
+                --target ferrum_test_stub
+
+      - name: Upload .so artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: android-${{ matrix.abi }}
+          path: .build/android/${{ matrix.abi }}/libferrum_test_stub.so

Directory.Build.props

@@ -0,0 +1,17 @@
+<Project>
+  <!--
+    Directory.Build.props — common MSBuild properties applied to every
+    project in this repository.  Keep this file minimal; project-specific
+    settings belong in the .csproj file.
+  -->
+  <PropertyGroup>
+    <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+
+    <!-- Reproducible builds -->
+    <Deterministic>true</Deterministic>
+    <ContinuousIntegrationBuild Condition="'$(CI)' == 'true'">true</ContinuousIntegrationBuild>
+  </PropertyGroup>
+</Project>