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.github/workflows/build.yaml

@@ -1,11 +1,13 @@
 name: Ensure parseable builds on all release targets
+
 on:
   pull_request:
     paths-ignore:
       - docs/**
       - helm/**
       - assets/**
       - "**.md"
+
 jobs:
   # Default build without Kafka
   build-default:
@@ -15,25 +17,45 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Linux builds
+          # Linux builds - x86_64 native, aarch64 cross-compile
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
+            use_cross: false
           - os: ubuntu-latest
             target: aarch64-unknown-linux-gnu
-          # macOS builds  
+            use_cross: true
+
+          # macOS builds - both native on macos-latest (M1)
           - os: macos-latest
             target: x86_64-apple-darwin
+            use_cross: false
           - os: macos-latest
             target: aarch64-apple-darwin
+            use_cross: false
+
           # Windows build
           - os: windows-latest
             target: x86_64-pc-windows-msvc
+            use_cross: false
+
     steps:
       - uses: actions/checkout@v4
+
       - name: Setup Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@nightly
         with:
           targets: ${{ matrix.target }}
+
+      - name: Install GCC 11 on Linux
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-11 g++-11
+
+      - name: Install cross
+        if: matrix.use_cross
+        run: cargo install cross --git https://github.com/cross-rs/cross
+
       - name: Cache dependencies
         uses: actions/cache@v4
         with:
@@ -42,12 +64,20 @@ jobs:
             ~/.cargo/git
             target
           key: ${{ runner.os }}-cargo-${{ matrix.target }}-default-${{ hashFiles('**/Cargo.lock') }}
-      - name: Build
-        uses: actions-rs/cargo@v1
-        with:
-          use-cross: ${{ runner.os == 'Linux' }}
-          command: build
-          args: --target ${{ matrix.target }} --release
+
+      - name: Build with cross
+        if: matrix.use_cross
+        env:
+          CROSS_NO_WARNINGS: "0"
+        run: cross build --target ${{ matrix.target }} --release
+
+      - name: Build native
+        if: ${{ !matrix.use_cross }}
+        env:
+          CC: ${{ runner.os == 'Linux' && 'gcc-11' || '' }}
+          CXX: ${{ runner.os == 'Linux' && 'g++-11' || '' }}
+        run: cargo build --target ${{ matrix.target }} --release
+
   # Kafka build for supported platforms
   build-kafka:
     name: Build Kafka ${{matrix.target}}
@@ -56,19 +86,40 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Linux builds
+          # Linux x86_64 - native build
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
+            use_cross: false
+
+          # Linux aarch64 - cross-compile
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
+            use_cross: true
+
+          # macOS aarch64 - native on M1
           - os: macos-latest
             target: aarch64-apple-darwin
+            use_cross: false
+
     steps:
       - uses: actions/checkout@v4
-      # Linux-specific dependencies
-      - name: Install Linux dependencies
-        if: runner.os == 'Linux'
+
+      - name: Set up Docker Buildx
+        if: matrix.use_cross
+        uses: docker/setup-buildx-action@v3
+
+      - name: Set up QEMU for cross-arch builds
+        if: matrix.use_cross
+        uses: docker/setup-qemu-action@v3
+
+      # Linux-specific dependencies for native x86_64 build
+      - name: Install Linux dependencies (x86_64)
+        if: runner.os == 'Linux' && matrix.target == 'x86_64-unknown-linux-gnu'
         run: |
           sudo apt-get update
           sudo apt-get install -y \
+            gcc-11 \
+            g++-11 \
             build-essential \
             pkg-config \
             cmake \
@@ -78,19 +129,8 @@ jobs:
             liblz4-dev \
             libssl-dev \
             libsasl2-dev \
-            python3 \
-            gcc-aarch64-linux-gnu \
-            g++-aarch64-linux-gnu
-          # Install cross-compilation specific packages
-          if [ "${{ matrix.target }}" = "aarch64-unknown-linux-gnu" ]; then
-            sudo apt-get install -y \
-              gcc-aarch64-linux-gnu \
-              g++-aarch64-linux-gnu \
-              libc6-dev-arm64-cross \
-              libsasl2-dev:arm64 \
-              libssl-dev:arm64 \
-              pkg-config-aarch64-linux-gnu
-          fi
+            python3
+
       # macOS-specific dependencies
       - name: Install macOS dependencies
         if: runner.os == 'macOS'
@@ -103,10 +143,16 @@ jobs:
             openssl@3.0 \
             cyrus-sasl \
             python3
+
       - name: Setup Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@nightly
         with:
           targets: ${{ matrix.target }}
+
+      - name: Install cross for aarch64
+        if: matrix.use_cross
+        run: cargo install cross --git https://github.com/cross-rs/cross
+
       - name: Cache dependencies
         uses: actions/cache@v4
         with:
@@ -115,8 +161,9 @@ jobs:
             ~/.cargo/git
             target
           key: ${{ runner.os }}-cargo-${{ matrix.target }}-kafka-${{ hashFiles('**/Cargo.lock') }}
+
       - name: Find and fix librdkafka CMakeLists.txt for Linux
-        if: runner.os == 'Linux'
+        if: runner.os == 'Linux' && !matrix.use_cross
         run: |
           cargo fetch
           # Find the rdkafka-sys package directory
@@ -136,6 +183,7 @@ jobs:
             echo "Could not find librdkafka CMakeLists.txt file!"
             exit 1
           fi
+
       - name: Find and fix librdkafka CMakeLists.txt for macOS
         if: runner.os == 'macOS'
         run: |
@@ -157,18 +205,35 @@ jobs:
             echo "Could not find librdkafka CMakeLists.txt file!"
             exit 1
           fi
-      - name: Build with Kafka
-        uses: actions-rs/cargo@v1
-        with:
-          use-cross: ${{ runner.os == 'Linux' }}
-          command: build
-          args: --target ${{ matrix.target }} --features kafka --release
+
+      - name: Build with Kafka (cross) - FIXED
+        if: matrix.use_cross
         env:
-          LIBRDKAFKA_SSL_VENDORED: 1
+          LIBRDKAFKA_SSL_VENDORED: "1"
           PKG_CONFIG_ALLOW_CROSS: "1"
-          PKG_CONFIG_PATH: /usr/lib/aarch64-linux-gnu/pkgconfig
-          SASL2_DIR: /usr/lib/aarch64-linux-gnu
-          OPENSSL_DIR: /usr/lib/aarch64-linux-gnu
-          OPENSSL_ROOT_DIR: /usr/lib/aarch64-linux-gnu
-          OPENSSL_STATIC: "1"
-          SASL2_STATIC: "0"
+          CROSS_NO_WARNINGS: "0"
+          RUST_BACKTRACE: "1"
+
+          # Standard Debian multiarch paths for aarch64
+          ZLIB_INCLUDE_DIR: "/usr/include"
+          ZLIB_LIBRARY: "/usr/lib/aarch64-linux-gnu/libz.so"
+
+          OPENSSL_ROOT_DIR: "/usr"
+          OPENSSL_INCLUDE_DIR: "/usr/include"
+          OPENSSL_CRYPTO_LIBRARY: "/usr/lib/aarch64-linux-gnu/libcrypto.so"
+          OPENSSL_SSL_LIBRARY: "/usr/lib/aarch64-linux-gnu/libssl.so"
+
+          PKG_CONFIG_PATH: "/usr/lib/aarch64-linux-gnu/pkgconfig:/usr/share/pkgconfig"
+        run: |
+          echo "=== HOST ENV DEBUG ==="
+          env | grep -E 'ZLIB_|OPENSSL_|PKG_CONFIG|LIBRDKAFKA'
+          echo "=== NOW RUNNING CROSS BUILD (pre-build will show zlib paths) ==="
+          cross build --target ${{ matrix.target }} --features kafka --release --verbose
+
+      - name: Build with Kafka (native)
+        if: ${{ !matrix.use_cross }}
+        env:
+          CC: ${{ runner.os == 'Linux' && 'gcc-11' || '' }}
+          CXX: ${{ runner.os == 'Linux' && 'g++-11' || '' }}
+          LIBRDKAFKA_SSL_VENDORED: "1"
+        run: cargo build --target ${{ matrix.target }} --features kafka --release