dmtrKovalenko · Oct 17, 2026 · Oct 16, 2026
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
@@ -255,57 +255,144 @@ jobs:
         with:
           version: 0.16.0
 
-      - name: Install cargo-zigbuild
-        if: contains(matrix.os, 'ubuntu')
-        run: cargo install cargo-zigbuild
+      - name: Install cargo-c
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-c
 
       - name: Build for Linux
         if: contains(matrix.os, 'ubuntu') && !contains(matrix.target, 'android')
         run: |
-          cargo zigbuild --profile ci --target ${{ matrix.zigbuild_target || matrix.target }} -p fff-c --no-default-features --features zlob
-          mv "${{ matrix.artifact_name }}" "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+          TARGET="${{ matrix.target }}"
+          DIST_DIR="fff-c-$TARGET"
+          ZIG_TRIPLE="${{ matrix.zigbuild_target || matrix.target }}"
+          export ZIG_TARGET="${ZIG_TRIPLE/-unknown/}"
+
+          TARGET_ENV=$(echo "$TARGET" | tr '[:lower:]' '[:upper:]' | tr '-' '_')
+          TARGET_LOWER=$(echo "$TARGET" | tr '-' '_')
+
+          export CC="$GITHUB_WORKSPACE/scripts/zig-cc.sh"
+          export "CC_${TARGET_LOWER}"="$GITHUB_WORKSPACE/scripts/zig-cc.sh"
+          export "CARGO_TARGET_${TARGET_ENV}_LINKER"="$GITHUB_WORKSPACE/scripts/zig-linker.sh"
+          export AR="zig ar"
+
+          cargo cinstall -p fff-c --profile ci --no-default-features --features zlob \
+            --target "$TARGET" \
+            --destdir "$DIST_DIR" \
+            --prefix /
+
+          cp "$DIST_DIR/lib/${{ matrix.lib_filename }}" "c-lib-$TARGET.${{ matrix.ext }}"
 
       - name: Build for Android (Termux)
         if: contains(matrix.target, 'android')
         run: |
+          TARGET="${{ matrix.target }}"
+          DIST_DIR="fff-c-$TARGET"
           NDK_BIN="$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin"
 
           export CC_aarch64_linux_android="$NDK_BIN/aarch64-linux-android24-clang"
           export CXX_aarch64_linux_android="$NDK_BIN/aarch64-linux-android24-clang++"
           export AR_aarch64_linux_android="$NDK_BIN/llvm-ar"
           export CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="$NDK_BIN/aarch64-linux-android24-clang"
 
-          cargo build --profile ci --target ${{ matrix.target }} -p fff-c --no-default-features --features zlob
-          mv "${{ matrix.artifact_name }}" "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+          cargo cinstall -p fff-c --profile ci --no-default-features --features zlob \
+            --target "$TARGET" \
+            --destdir "$DIST_DIR" \
+            --prefix /
+
+          cp "$DIST_DIR/lib/${{ matrix.lib_filename }}" "c-lib-$TARGET.${{ matrix.ext }}"
 
       - name: Build for macOS
         if: contains(matrix.os, 'macos')
         run: |
-          MACOSX_DEPLOYMENT_TARGET="13" cargo build --profile ci --target ${{ matrix.target }} -p fff-c --no-default-features --features zlob
-          mv "${{ matrix.artifact_name }}" "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+          TARGET="${{ matrix.target }}"
+          DIST_DIR="fff-c-$TARGET"
+
+          MACOSX_DEPLOYMENT_TARGET="13" cargo cinstall -p fff-c --profile ci --no-default-features --features zlob \
+            --target "$TARGET" \
+            --destdir "$DIST_DIR" \
+            --prefix /
+
+          # Set install_name to @rpath for relocatability
+          for dylib in "$DIST_DIR/lib"/*.dylib; do
+            [ -f "$dylib" ] || continue
+            install_name_tool -id "@rpath/libfff_c.dylib" "$dylib" || true
+          done
+
+          cp "$DIST_DIR/lib/${{ matrix.lib_filename }}" "c-lib-$TARGET.${{ matrix.ext }}"
 
       - name: Ad-hoc sign macOS binary
         if: contains(matrix.os, 'macos')
-        run: codesign --force --sign - "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+        run: |
+          codesign --force --sign - "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+          for dylib in "fff-c-${{ matrix.target }}/lib"/*.dylib; do
+            [ -f "$dylib" ] || continue
+            codesign --force --sign - "$dylib" || true
+          done
 
       - name: Build for Windows
         if: contains(matrix.os, 'windows')
         shell: bash
         run: |
-          cargo build --profile ci --target ${{ matrix.target }} -p fff-c --no-default-features --features zlob
-          mv "${{ matrix.artifact_name }}" "c-lib-${{ matrix.target }}.${{ matrix.ext }}"
+          TARGET="${{ matrix.target }}"
+          DIST_DIR="fff-c-$TARGET"
+
+          export MSYS_NO_PATHCONV=1
+          export MSYS2_ARG_CONV_EXCL="*"
+
+          cargo cinstall -p fff-c --profile ci --no-default-features --features zlob \
+            --target "$TARGET" \
+            --destdir "$DIST_DIR" \
+            --prefix /
+
+          if [ -f "$DIST_DIR/bin/${{ matrix.lib_filename }}" ]; then
+            cp "$DIST_DIR/bin/${{ matrix.lib_filename }}" "c-lib-$TARGET.${{ matrix.ext }}"
+            mkdir -p "$DIST_DIR/lib"
+            cp "$DIST_DIR/bin/${{ matrix.lib_filename }}" "$DIST_DIR/lib/${{ matrix.lib_filename }}"
+          elif [ -f "$DIST_DIR/lib/${{ matrix.lib_filename }}" ]; then
+            cp "$DIST_DIR/lib/${{ matrix.lib_filename }}" "c-lib-$TARGET.${{ matrix.ext }}"
+          else
+            DLL_FOUND=$(find "$DIST_DIR" -name "${{ matrix.lib_filename }}" | head -n 1)
+            if [ -n "$DLL_FOUND" ]; then
+              cp "$DLL_FOUND" "c-lib-$TARGET.${{ matrix.ext }}"
+              mkdir -p "$DIST_DIR/lib"
+              cp "$DLL_FOUND" "$DIST_DIR/lib/${{ matrix.lib_filename }}"
+            fi
+          fi
 
       - name: Prepare npm package
         shell: bash
         run: |
           # Copy the built binary into the platform npm package directory
           cp "c-lib-${{ matrix.target }}.${{ matrix.ext }}" "packages/${{ matrix.npm_package }}/${{ matrix.lib_filename }}"
 
+      - name: Package C developer bundle (.a, .h, .pc)
+        shell: bash
+        run: |
+          TARGET="${{ matrix.target }}"
+          EXT="${{ matrix.ext }}"
+          DIST_DIR="fff-c-$TARGET"
+
+          # Make pkg-config file relocatable
+          if [ -f "$DIST_DIR/lib/pkgconfig/fff_c.pc" ]; then
+            # shellcheck disable=SC2016
+            sed -i.bak 's|^prefix=.*|prefix=${pcfiledir}/../..|' "$DIST_DIR/lib/pkgconfig/fff_c.pc"
+            rm -f "$DIST_DIR/lib/pkgconfig/fff_c.pc.bak"
+          fi
+
+          # Archive package
+          tar -czf "fff-c-$TARGET.tar.gz" "$DIST_DIR"
+          if [ "$EXT" = "dll" ]; then
+            7z a "fff-c-$TARGET.zip" "$DIST_DIR"
+          fi
+
       - name: Upload C library artifact
         uses: actions/upload-artifact@v4
         with:
           name: c-lib-${{ matrix.target }}
-          path: c-lib-${{ matrix.target }}.*
+          path: |
+            c-lib-${{ matrix.target }}.*
+            fff-c-${{ matrix.target }}.*
 
       - name: Upload npm package artifact
         uses: actions/upload-artifact@v4
@@ -633,6 +720,7 @@ jobs:
 
             ## C FFI Library (for Bun/Node/Python)
             - `c-lib-{target}.so` / `.dylib` / `.dll` - C FFI library
+            - `fff-c-{target}.tar.gz` (or `.zip` for Windows) - C SDK bundle (.a static lib, .h header, .pc pkg-config)
 
             ## MCP Server
             - `fff-mcp-{target}` - MCP server binary

diff --git a/scripts/zig-cc.sh b/scripts/zig-cc.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+args=()
+for arg in "$@"; do
+  case "$arg" in
+    --target=*)
+      ;;
+    *)
+      args+=("$arg")
+      ;;
+  esac
+done
+exec zig cc -target "$ZIG_TARGET" "${args[@]}"
diff --git a/scripts/zig-linker.sh b/scripts/zig-linker.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+args=()
+for arg in "$@"; do
+  case "$arg" in
+    --fix-cortex-a53-843419|-Wl,--fix-cortex-a53-843419)
+      ;;
+    *)
+      args+=("$arg")
+      ;;
+  esac
+done
+exec zig cc -target "$ZIG_TARGET" "${args[@]}"