ci: add Windows MSVC Vulkan CI with downloadable packages

.github/workflows/build-packages.yml

@@ -0,0 +1,111 @@
+name: Build Packages
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+    paths: [
+      '.github/workflows/build-packages.yml',
+      '**/CMakeLists.txt',
+      '**/.cmake',
+      '**/*.h',
+      '**/*.hpp',
+      '**/*.c',
+      '**/*.cpp',
+      '**/*.cu',
+      '**/*.cuh'
+    ]
+  pull_request:
+    types: [opened, synchronize, reopened]
+    paths: [
+      '.github/workflows/build-packages.yml',
+      '**/CMakeLists.txt',
+      '**/.cmake',
+      '**/*.h',
+      '**/*.hpp',
+      '**/*.c',
+      '**/*.cpp',
+      '**/*.cu',
+      '**/*.cuh'
+    ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  cancel-in-progress: true
+
+env:
+  VULKAN_VERSION: 1.4.313.2
+
+jobs:
+  windows-msvc-vulkan:
+    runs-on: windows-2025
+    name: Windows x64 MSVC Vulkan
+
+    steps:
+      - name: Clone
+        id: checkout
+        uses: actions/checkout@v6
+
+      - name: ccache
+        uses: ggml-org/ccache-action@v1.2.21
+        with:
+          key: windows-x64-msvc-vulkan
+          variant: ccache
+          evict-old-files: 1d
+          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
+      - name: Install Vulkan SDK
+        id: get_vulkan
+        run: |
+          curl.exe -o $env:RUNNER_TEMP/VulkanSDK-Installer.exe -L "https://sdk.lunarg.com/sdk/download/${env:VULKAN_VERSION}/windows/vulkansdk-windows-X64-${env:VULKAN_VERSION}.exe"
+          & "$env:RUNNER_TEMP\VulkanSDK-Installer.exe" --accept-licenses --default-answer --confirm-command install
+          Add-Content $env:GITHUB_ENV "VULKAN_SDK=C:\VulkanSDK\${env:VULKAN_VERSION}"
+          Add-Content $env:GITHUB_PATH "C:\VulkanSDK\${env:VULKAN_VERSION}\bin"
+
+      - name: Install Ninja
+        id: install_ninja
+        run: |
+          choco install ninja
+
+      - name: Setup MSVC
+        id: setup_msvc
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Build (x64 MSVC Vulkan)
+        id: cmake_build
+        run: |
+          cmake -B build `
+            -G "Ninja Multi-Config" `
+            -DCMAKE_BUILD_TYPE=Release `
+            -DGGML_NATIVE=OFF `
+            -DLLAMA_BUILD_SERVER=ON `
+            -DLLAMA_BUILD_WEBUI=OFF `
+            -DLLAMA_USE_PREBUILT_WEBUI=OFF `
+            -DLLAMA_OPENSSL=OFF `
+            -DGGML_RPC=ON `
+            -DGGML_BACKEND_DL=ON `
+            -DGGML_CPU_ALL_VARIANTS=ON `
+            -DGGML_VULKAN=ON
+          cmake --build build --config Release
+
+      - name: Test
+        id: cmake_test
+        run: |
+          cd build
+          ctest -L main -C Release --verbose --timeout 900
+
+      - name: Create artifact archive
+        run: |
+          cd build
+          mkdir -p artifacts
+          copy bin\Release\*.exe artifacts\ 2>nul || true
+          copy bin\Release\*.dll artifacts\ 2>nul || true
+          7z a llama-windows-msvc-vulkan.7z artifacts\
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: llama-windows-x64-msvc-vulkan
+          path: build/llama-windows-msvc-vulkan.7z
+          retention-days: 7

src/CMakeLists.txt

@@ -55,6 +55,7 @@ target_link_libraries(llama PUBLIC ggml)
 
 if (BUILD_SHARED_LIBS)
     set_target_properties(llama PROPERTIES POSITION_INDEPENDENT_CODE ON)
+    set_target_properties(llama PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
     target_compile_definitions(llama PRIVATE LLAMA_BUILD)
     target_compile_definitions(llama PUBLIC  LLAMA_SHARED)
 endif()