Add release workflow for Linux x86_64 prebuilts

.github/workflows/release.yml

@@ -0,0 +1,62 @@
+name: Release
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: write
+
+jobs:
+  linux-x86_64:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install LLVM and build tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            llvm-19 llvm-19-dev clang-19 \
+            ninja-build cmake python3 \
+            zlib1g-dev libxml2-dev libzstd-dev
+
+      - name: Configure
+        run: |
+          cmake -S . -B build \
+            -G Ninja \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DLLVM_DIR=/usr/lib/llvm-19 \
+            -DCMAKE_C_COMPILER=clang-19 \
+            -DCMAKE_CXX_COMPILER=clang++-19 \
+            -DCERAMIC_STATIC_LLVM=ON \
+            -DCMAKE_EXE_LINKER_FLAGS="-static-libstdc++ -static-libgcc"
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Stage release tree
+        run: |
+          tag="${GITHUB_REF_NAME}"
+          name="ceramic-${tag}-linux-x86_64"
+          mkdir -p "dist/${name}/bin"
+          cp build/compiler/ceramic "dist/${name}/bin/"
+          cp -r lib-ceramic "dist/${name}/"
+          cp LICENSE LICENSE.txt README.md "dist/${name}/" 2>/dev/null || true
+          echo "ARCHIVE_NAME=${name}" >> "$GITHUB_ENV"
+
+      - name: Archive
+        run: |
+          cd dist
+          tar -czf "${ARCHIVE_NAME}.tar.gz" "${ARCHIVE_NAME}"
+          sha256sum "${ARCHIVE_NAME}.tar.gz" > "${ARCHIVE_NAME}.tar.gz.sha256"
+
+      - name: Publish release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            dist/${{ env.ARCHIVE_NAME }}.tar.gz
+            dist/${{ env.ARCHIVE_NAME }}.tar.gz.sha256
+          draft: true
+          generate_release_notes: true

CMakeLists.txt

@@ -28,7 +28,9 @@ if(UNIX)
     message("-- Using LLVM ${LLVM_PACKAGE_VERSION}: ${LLVM_INSTALL_PREFIX}")
     message("-- LLVM include dir: ${LLVM_INCLUDE_DIRS}")
 
-    if(LLVM_LINK_LLVM_DYLIB)
+    option(CERAMIC_STATIC_LLVM "Link LLVM components statically" OFF)
+
+    if(LLVM_LINK_LLVM_DYLIB AND NOT CERAMIC_STATIC_LLVM)
         set(LLVM_LIBS LLVM)
     else()
         llvm_map_components_to_libnames(LLVM_LIBS all)