Support linking onnxruntime statically for Android (#1619)

+# static means we link onnxruntime statically
+# but we still have libsherpa-onnx-jni.so
+name: android-static
+
+on:
+  push:
+    branches:
+      - master
+      - android-link-onnxruntime-statically
+    paths:
+      - '.github/workflows/android-static.yaml'
+      - 'CMakeLists.txt'
+      - 'cmake/**'
+      - 'sherpa-onnx/csrc/*'
+      - 'sherpa-onnx/jni/*'
+      - 'build-android*.sh'
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+  pull_request:
+    branches:
+      - master
+    paths:
+      - '.github/workflows/android-static.yaml'
+      - 'CMakeLists.txt'
+      - 'cmake/**'
+      - 'sherpa-onnx/csrc/*'
+      - 'sherpa-onnx/jni/*'
+      - 'build-android*.sh'
+
+  workflow_dispatch:
+
+concurrency:
+  group: android-static-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-android-static-libs:
+    name: Android static libs
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-android-jni-static
+
+      - name: Display NDK HOME
+        shell: bash
+        run: |
+          echo "ANDROID_NDK_LATEST_HOME: ${ANDROID_NDK_LATEST_HOME}"
+          ls -lh ${ANDROID_NDK_LATEST_HOME}
+
+      - name: build android arm64-v8a
+        shell: bash
+        run: |
+          export BUILD_SHARED_LIBS=OFF
+
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-android-arm64-v8a.sh
+          mkdir -p jniLibs/arm64-v8a/
+          cp -v ./build-android-arm64-v8a-static/install/lib/*.so ./jniLibs/arm64-v8a/
+          rm -rf  ./build-android-arm64-v8a-static/
+
+      - name: build android armv7-eabi
+        shell: bash
+        run: |
+          export BUILD_SHARED_LIBS=OFF
+
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-android-armv7-eabi.sh
+          mkdir -p ./jniLibs/armeabi-v7a/
+          cp -v ./build-android-armv7-eabi-static/install/lib/*.so ./jniLibs/armeabi-v7a/
+          rm -rf ./build-android-armv7-eabi-static
+
+      - name: build android x86_64
+        shell: bash
+        run: |
+          export BUILD_SHARED_LIBS=OFF
+
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-android-x86-64.sh
+          mkdir -p ./jniLibs/x86_64
+          cp -v ./build-android-x86-64-static/install/lib/*.so ./jniLibs/x86_64
+          rm -rf ./build-android-x86-64-static
+
+      - name: build android x86
+        shell: bash
+        run: |
+          export BUILD_SHARED_LIBS=OFF
+
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+
+          export ANDROID_NDK=$ANDROID_NDK_LATEST_HOME
+          ./build-android-x86.sh
+          mkdir -p ./jniLibs/x86
+          cp -v ./build-android-x86/install/lib/*.so ./jniLibs/x86
+          rm -rf ./build-android-x86
+
+      - name: Copy files
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=v$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+          echo "SHERPA_ONNX_VERSION=$SHERPA_ONNX_VERSION" >> "$GITHUB_ENV"
+
+          filename=sherpa-onnx-${SHERPA_ONNX_VERSION}-android-static-link-onnxruntime.tar.bz2
+
+          tar cjvf $filename ./jniLibs
+
+          ls -lh
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sherpa-onnx-android-libs-static
+          path: ./jniLibs
+
+      # https://huggingface.co/docs/hub/spaces-github-actions
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+            du -h -d1 .
+            ls -lh
+
+            rm -rf huggingface
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+            GIT_LFS_SKIP_SMUDGE=1 git clone https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs huggingface
+
+            cd huggingface
+
+            cp -v ../sherpa-onnx-*-android*.tar.bz2 ./
+
+            git status
+            git lfs track "*.bz2"
+
+            git add .
+
+            git commit -m "upload sherpa-onnx-${SHERPA_ONNX_VERSION}-android.tar.bz2"
+
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs main
+
+      - name: Release android libs
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          file_glob: true
+          overwrite: true
+          file: sherpa-onnx-*-android*.tar.bz2
+
+  build-android-aar-static:
+    needs: [build-android-static-libs]
+    name: Android AAR
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # https://github.com/actions/setup-java
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+
+      - name: Display NDK HOME
+        shell: bash
+        run: |
+          echo "ANDROID_NDK_LATEST_HOME: ${ANDROID_NDK_LATEST_HOME}"
+          ls -lh ${ANDROID_NDK_LATEST_HOME}
+
+      - name: Retrieve artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: sherpa-onnx-android-libs-static
+          path: /tmp/jniLibs
+
+      - name: Show jni libs
+        shell: bash
+        run: |
+          ls -lh /tmp/jniLibs
+
+          # drwxr-xr-x 2 runner docker 4.0K Dec 12 06:56 arm64-v8a
+          # drwxr-xr-x 2 runner docker 4.0K Dec 12 06:56 armeabi-v7a
+          # drwxr-xr-x 2 runner docker 4.0K Dec 12 06:56 x86
+          # drwxr-xr-x 2 runner docker 4.0K Dec 12 06:56 x86_64
+          #
+      - name: Copy libs
+        shell: bash
+        run: |
+          for arch in arm64-v8a armeabi-v7a x86 x86_64; do
+            cp -v /tmp/jniLibs/$arch/* android/SherpaOnnxAar/sherpa_onnx/src/main/jniLibs/$arch/
+          done
+
+      - name: Check libs
+        shell: bash
+        run: |
+          ls -lh android/SherpaOnnxAar/sherpa_onnx/src/main/jniLibs/*
+
+      - name: Build aar
+        shell: bash
+        run: |
+          cd android/SherpaOnnxAar
+
+          ./gradlew :sherpa_onnx:assembleRelease
+
+      - name: Display aar
+        shell: bash
+        run: |
+          cd android/SherpaOnnxAar
+
+          ls -lh ./sherpa_onnx/build/outputs/aar/sherpa_onnx-release.aar
+          cp ./sherpa_onnx/build/outputs/aar/sherpa_onnx-release.aar ../../
+
+      - name: Rename aar
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+          echo "SHERPA_ONNX_VERSION=$SHERPA_ONNX_VERSION" >> "$GITHUB_ENV"
+
+          mv sherpa_onnx-release.aar sherpa-onnx-static-link-onnxruntime-${SHERPA_ONNX_VERSION}.aar
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sherpa-onnx-android-aar-static
+          path: ./*.aar
+
+      # https://huggingface.co/docs/hub/spaces-github-actions
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+            du -h -d1 .
+            ls -lh
+
+            rm -rf huggingface
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+            GIT_LFS_SKIP_SMUDGE=1 git clone https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs huggingface
+
+            cd huggingface
+            dst=android/aar
+            mkdir -p $dst
+
+            cp -v ../*.aar $dst
+
+            git status
+            git lfs track "*.aar"
+
+            git add .
+
+            git commit -m "upload sherpa-onnx-${SHERPA_ONNX_VERSION}.aar"
+
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs main
+
+      - name: Release android aar
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          file_glob: true
+          overwrite: true
+          file: ./*.aar

@@ -82,11 +82,6 @@ if(SHERPA_ONNX_ENABLE_PYTHON AND NOT BUILD_SHARED_LIBS)
   set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
 endif()
 
-if(SHERPA_ONNX_ENABLE_JNI AND NOT BUILD_SHARED_LIBS)
-  message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_JNI is ON")
-  set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
-endif()
-
 if(SHERPA_ONNX_ENABLE_GPU)
   message(WARNING "\
 Compiling for NVIDIA GPU is enabled. Please make sure cudatoolkit
@@ -157,7 +152,7 @@ message(STATUS "SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE ${SHERPA_
 message(STATUS "SHERPA_ONNX_ENABLE_SANITIZER: ${SHERPA_ONNX_ENABLE_SANITIZER}")
 message(STATUS "SHERPA_ONNX_BUILD_C_API_EXAMPLES: ${SHERPA_ONNX_BUILD_C_API_EXAMPLES}")
 
-if(BUILD_SHARED_LIBS)
+if(BUILD_SHARED_LIBS OR SHERPA_ONNX_ENABLE_JNI)
   set(CMAKE_CXX_VISIBILITY_PRESET hidden)
   set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
   set(CMAKE_POSITION_INDEPENDENT_CODE ON)

 #!/usr/bin/env bash
 set -ex
 
-dir=$PWD/build-android-arm64-v8a
+# If BUILD_SHARED_LIBS is ON, we use libonnxruntime.so
+# If BUILD_SHARED_LIBS is OFF, we use libonnxruntime.a
+#
+# In any case, we will have libsherpa-onnx-jni.so
+#
+# If BUILD_SHARED_LIBS is OFF, then libonnxruntime.a is linked into libsherpa-onnx-jni.so
+# and you only need to copy libsherpa-onnx-jni.so to your Android projects.
+#
+# If BUILD_SHARED_LIBS is ON, then you need to copy both libsherpa-onnx-jni.so
+# and libonnxruntime.so to your Android projects
+#
+if [ -z $BUILD_SHARED_LIBS ]; then
+  BUILD_SHARED_LIBS=ON
+fi
+
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  dir=$PWD/build-android-arm64-v8a
+else
+  dir=$PWD/build-android-arm64-v8a-static
+fi
 
 mkdir -p $dir
 cd $dir
@@ -21,6 +40,9 @@ cd $dir
 
 if [ -z $ANDROID_NDK ]; then
   ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/22.1.7171670
+  if [ $BUILD_SHARED_LIBS == OFF ]; then
+    ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/27.0.11718014
+  fi
   # or use
   # ANDROID_NDK=/star-fj/fangjun/software/android-ndk
   #
@@ -32,6 +54,10 @@ if [ -z $ANDROID_NDK ]; then
     # Tools -> SDK manager -> Android SDK
     # and set "Android SDK location" to /Users/fangjun/software/my-android
     ANDROID_NDK=/Users/fangjun/software/my-android/ndk/22.1.7171670
+
+    if [ $BUILD_SHARED_LIBS == OFF ]; then
+      ANDROID_NDK=/Users/fangjun/software/my-android/ndk/27.0.11718014
+    fi
   fi
 fi
 
@@ -44,17 +70,29 @@ echo "ANDROID_NDK: $ANDROID_NDK"
 sleep 1
 onnxruntime_version=1.17.1
 
-if [ ! -f $onnxruntime_version/jni/arm64-v8a/libonnxruntime.so ]; then
-  mkdir -p $onnxruntime_version
-  pushd $onnxruntime_version
-  wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
-  unzip onnxruntime-android-${onnxruntime_version}.zip
-  rm onnxruntime-android-${onnxruntime_version}.zip
-  popd
-fi
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  if [ ! -f $onnxruntime_version/jni/arm64-v8a/libonnxruntime.so ]; then
+    mkdir -p $onnxruntime_version
+    pushd $onnxruntime_version
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
+    unzip onnxruntime-android-${onnxruntime_version}.zip
+    rm onnxruntime-android-${onnxruntime_version}.zip
+    popd
+  fi
 
-export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/arm64-v8a/
-export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/arm64-v8a/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+else
+  if [ ! -f ${onnxruntime_version}-static/lib/libonnxruntime.a ]; then
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-arm64-v8a-static_lib-${onnxruntime_version}.zip
+    unzip onnxruntime-android-arm64-v8a-static_lib-${onnxruntime_version}.zip
+    rm onnxruntime-android-arm64-v8a-static_lib-${onnxruntime_version}.zip
+    mv onnxruntime-android-arm64-v8a-static_lib-${onnxruntime_version} ${onnxruntime_version}-static
+  fi
+
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version-static/lib/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version-static/include/
+fi
 
 echo "SHERPA_ONNXRUNTIME_LIB_DIR: $SHERPA_ONNXRUNTIME_LIB_DIR"
 echo "SHERPA_ONNXRUNTIME_INCLUDE_DIR $SHERPA_ONNXRUNTIME_INCLUDE_DIR"
@@ -88,24 +126,30 @@ cmake -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK/build/cmake/android.toolchain.cmake"
     -DBUILD_ESPEAK_NG_EXE=OFF \
     -DBUILD_ESPEAK_NG_TESTS=OFF \
     -DCMAKE_BUILD_TYPE=Release \
-    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_SHARED_LIBS=$BUILD_SHARED_LIBS \
     -DSHERPA_ONNX_ENABLE_PYTHON=OFF \
     -DSHERPA_ONNX_ENABLE_TESTS=OFF \
     -DSHERPA_ONNX_ENABLE_CHECK=OFF \
     -DSHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
     -DSHERPA_ONNX_ENABLE_JNI=$SHERPA_ONNX_ENABLE_JNI \
+    -DSHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY=OFF \
     -DSHERPA_ONNX_ENABLE_C_API=$SHERPA_ONNX_ENABLE_C_API \
     -DCMAKE_INSTALL_PREFIX=./install \
     -DANDROID_ABI="arm64-v8a" \
     -DANDROID_PLATFORM=android-21 ..
 
+    # By default, it links to libc++_static.a
+    # -DANDROID_STL=c++_shared \
+
 # Please use -DANDROID_PLATFORM=android-27 if you want to use Android NNAPI
 
 # make VERBOSE=1 -j4
 make -j4
 make install/strip
-cp -fv $onnxruntime_version/jni/arm64-v8a/libonnxruntime.so install/lib
+cp -fv $onnxruntime_version/jni/arm64-v8a/libonnxruntime.so install/lib 2>/dev/null || true
+rm -rf install/share
 rm -rf install/lib/pkgconfig
+rm -rf install/lib/lib*.a
 
 # To run the generated binaries on Android, please use the following steps.
 #

 #!/usr/bin/env bash
 set -ex
 
-dir=$PWD/build-android-armv7-eabi
+# If BUILD_SHARED_LIBS is ON, we use libonnxruntime.so
+# If BUILD_SHARED_LIBS is OFF, we use libonnxruntime.a
+#
+# In any case, we will have libsherpa-onnx-jni.so
+#
+# If BUILD_SHARED_LIBS is OFF, then libonnxruntime.a is linked into libsherpa-onnx-jni.so
+# and you only need to copy libsherpa-onnx-jni.so to your Android projects.
+#
+# If BUILD_SHARED_LIBS is ON, then you need to copy both libsherpa-onnx-jni.so
+# and libonnxruntime.so to your Android projects
+#
+if [ -z $BUILD_SHARED_LIBS ]; then
+  BUILD_SHARED_LIBS=ON
+fi
+
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  dir=$PWD/build-android-armv7-eabi
+else
+  dir=$PWD/build-android-armv7-eabi-static
+fi
 
 mkdir -p $dir
 cd $dir
@@ -21,6 +40,9 @@ cd $dir
 
 if [ -z $ANDROID_NDK ]; then
   ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/22.1.7171670
+  if [ $BUILD_SHARED_LIBS == OFF ]; then
+    ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/27.0.11718014
+  fi
   # or use
   # ANDROID_NDK=/star-fj/fangjun/software/android-ndk
   #
@@ -32,6 +54,10 @@ if [ -z $ANDROID_NDK ]; then
     # Tools -> SDK manager -> Android SDK
     # and set "Android SDK location" to /Users/fangjun/software/my-android
     ANDROID_NDK=/Users/fangjun/software/my-android/ndk/22.1.7171670
+
+    if [ $BUILD_SHARED_LIBS == OFF ]; then
+      ANDROID_NDK=/Users/fangjun/software/my-android/ndk/27.0.11718014
+    fi
   fi
 fi
 
@@ -45,17 +71,29 @@ sleep 1
 
 onnxruntime_version=1.17.1
 
-if [ ! -f $onnxruntime_version/jni/armeabi-v7a/libonnxruntime.so ]; then
-  mkdir -p $onnxruntime_version
-  pushd $onnxruntime_version
-  wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
-  unzip onnxruntime-android-${onnxruntime_version}.zip
-  rm onnxruntime-android-${onnxruntime_version}.zip
-  popd
-fi
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  if [ ! -f $onnxruntime_version/jni/armeabi-v7a/libonnxruntime.so ]; then
+    mkdir -p $onnxruntime_version
+    pushd $onnxruntime_version
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
+    unzip onnxruntime-android-${onnxruntime_version}.zip
+    rm onnxruntime-android-${onnxruntime_version}.zip
+    popd
+  fi
+
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/armeabi-v7a/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+else
+  if [ ! -f ${onnxruntime_version}-static/lib/libonnxruntime.a ]; then
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-armeabi-v7a-static_lib-${onnxruntime_version}.zip
+    unzip onnxruntime-android-armeabi-v7a-static_lib-${onnxruntime_version}.zip
+    rm onnxruntime-android-armeabi-v7a-static_lib-${onnxruntime_version}.zip
+    mv onnxruntime-android-armeabi-v7a-static_lib-${onnxruntime_version} ${onnxruntime_version}-static
+  fi
 
-export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/armeabi-v7a/
-export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version-static/lib/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version-static/include/
+fi
 
 echo "SHERPA_ONNXRUNTIME_LIB_DIR: $SHERPA_ONNXRUNTIME_LIB_DIR"
 echo "SHERPA_ONNXRUNTIME_INCLUDE_DIR $SHERPA_ONNXRUNTIME_INCLUDE_DIR"
@@ -89,18 +127,25 @@ cmake -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK/build/cmake/android.toolchain.cmake"
     -DBUILD_ESPEAK_NG_EXE=OFF \
     -DBUILD_ESPEAK_NG_TESTS=OFF \
     -DCMAKE_BUILD_TYPE=Release \
-    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_SHARED_LIBS=$BUILD_SHARED_LIBS \
     -DSHERPA_ONNX_ENABLE_PYTHON=OFF \
     -DSHERPA_ONNX_ENABLE_TESTS=OFF \
     -DSHERPA_ONNX_ENABLE_CHECK=OFF \
     -DSHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
     -DSHERPA_ONNX_ENABLE_JNI=$SHERPA_ONNX_ENABLE_JNI \
+    -DSHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY=OFF \
     -DSHERPA_ONNX_ENABLE_C_API=$SHERPA_ONNX_ENABLE_C_API \
     -DCMAKE_INSTALL_PREFIX=./install \
     -DANDROID_ABI="armeabi-v7a" -DANDROID_ARM_NEON=ON \
     -DANDROID_PLATFORM=android-21 ..
+
+    # By default, it links to libc++_static.a
+    # -DANDROID_STL=c++_shared \
+
 # make VERBOSE=1 -j4
 make -j4
 make install/strip
-cp -fv $onnxruntime_version/jni/armeabi-v7a/libonnxruntime.so install/lib
+cp -fv $onnxruntime_version/jni/armeabi-v7a/libonnxruntime.so install/lib 2>/dev/null || true
+rm -rf install/share
 rm -rf install/lib/pkgconfig
+rm -rf install/lib/lib*.a

 #!/usr/bin/env bash
 set -ex
 
-dir=$PWD/build-android-x86-64
+# If BUILD_SHARED_LIBS is ON, we use libonnxruntime.so
+# If BUILD_SHARED_LIBS is OFF, we use libonnxruntime.a
+#
+# In any case, we will have libsherpa-onnx-jni.so
+#
+# If BUILD_SHARED_LIBS is OFF, then libonnxruntime.a is linked into libsherpa-onnx-jni.so
+# and you only need to copy libsherpa-onnx-jni.so to your Android projects.
+#
+# If BUILD_SHARED_LIBS is ON, then you need to copy both libsherpa-onnx-jni.so
+# and libonnxruntime.so to your Android projects
+#
+if [ -z $BUILD_SHARED_LIBS ]; then
+  BUILD_SHARED_LIBS=ON
+fi
+
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  dir=$PWD/build-android-x86-64
+else
+  dir=$PWD/build-android-x86-64-static
+fi
 
 mkdir -p $dir
 cd $dir
@@ -21,6 +40,9 @@ cd $dir
 
 if [ -z $ANDROID_NDK ]; then
   ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/22.1.7171670
+  if [ $BUILD_SHARED_LIBS == OFF ]; then
+    ANDROID_NDK=/star-fj/fangjun/software/android-sdk/ndk/27.0.11718014
+  fi
   # or use
   # ANDROID_NDK=/star-fj/fangjun/software/android-ndk
   #
@@ -32,6 +54,10 @@ if [ -z $ANDROID_NDK ]; then
     # Tools -> SDK manager -> Android SDK
     # and set "Android SDK location" to /Users/fangjun/software/my-android
     ANDROID_NDK=/Users/fangjun/software/my-android/ndk/22.1.7171670
+
+    if [ $BUILD_SHARED_LIBS == OFF ]; then
+      ANDROID_NDK=/Users/fangjun/software/my-android/ndk/27.0.11718014
+    fi
   fi
 fi
 
@@ -45,17 +71,29 @@ sleep 1
 
 onnxruntime_version=1.17.1
 
-if [ ! -f $onnxruntime_version/jni/x86_64/libonnxruntime.so ]; then
-  mkdir -p $onnxruntime_version
-  pushd $onnxruntime_version
-  wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
-  unzip onnxruntime-android-${onnxruntime_version}.zip
-  rm onnxruntime-android-${onnxruntime_version}.zip
-  popd
-fi
+if [ $BUILD_SHARED_LIBS == ON ]; then
+  if [ ! -f $onnxruntime_version/jni/x86_64/libonnxruntime.so ]; then
+    mkdir -p $onnxruntime_version
+    pushd $onnxruntime_version
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-${onnxruntime_version}.zip
+    unzip onnxruntime-android-${onnxruntime_version}.zip
+    rm onnxruntime-android-${onnxruntime_version}.zip
+    popd
+  fi
+
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/x86_64/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+else
+  if [ ! -f ${onnxruntime_version}-static/lib/libonnxruntime.a ]; then
+    wget -c -q https://github.com/csukuangfj/onnxruntime-libs/releases/download/v${onnxruntime_version}/onnxruntime-android-x86_64-static_lib-${onnxruntime_version}.zip
+    unzip onnxruntime-android-x86_64-static_lib-${onnxruntime_version}.zip
+    rm onnxruntime-android-x86_64-static_lib-${onnxruntime_version}.zip
+    mv onnxruntime-android-x86_64-static_lib-${onnxruntime_version} ${onnxruntime_version}-static
+  fi
 
-export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version/jni/x86_64/
-export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version/headers/
+  export SHERPA_ONNXRUNTIME_LIB_DIR=$dir/$onnxruntime_version-static/lib/
+  export SHERPA_ONNXRUNTIME_INCLUDE_DIR=$dir/$onnxruntime_version-static/include/
+fi
 
 echo "SHERPA_ONNXRUNTIME_LIB_DIR: $SHERPA_ONNXRUNTIME_LIB_DIR"
 echo "SHERPA_ONNXRUNTIME_INCLUDE_DIR $SHERPA_ONNXRUNTIME_INCLUDE_DIR"
@@ -89,20 +127,27 @@ cmake -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK/build/cmake/android.toolchain.cmake"
     -DBUILD_ESPEAK_NG_EXE=OFF \
     -DBUILD_ESPEAK_NG_TESTS=OFF \
     -DCMAKE_BUILD_TYPE=Release \
-    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_SHARED_LIBS=$BUILD_SHARED_LIBS \
     -DSHERPA_ONNX_ENABLE_PYTHON=OFF \
     -DSHERPA_ONNX_ENABLE_TESTS=OFF \
     -DSHERPA_ONNX_ENABLE_CHECK=OFF \
     -DSHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
     -DSHERPA_ONNX_ENABLE_JNI=$SHERPA_ONNX_ENABLE_JNI \
+    -DSHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY=OFF \
     -DCMAKE_INSTALL_PREFIX=./install \
     -DANDROID_ABI="x86_64" \
     -DSHERPA_ONNX_ENABLE_C_API=$SHERPA_ONNX_ENABLE_C_API \
     -DSHERPA_ONNX_ENABLE_WEBSOCKET=OFF \
     -DANDROID_PLATFORM=android-21 ..
 
+    # By default, it links to libc++_static.a
+    # -DANDROID_STL=c++_shared \
+
 # make VERBOSE=1 -j4
 make -j4
 make install/strip
-cp -fv $onnxruntime_version/jni/x86_64/libonnxruntime.so install/lib
+
+cp -fv $onnxruntime_version/jni/x86_64/libonnxruntime.so install/lib 2>/dev/null || true
+rm -rf install/share
 rm -rf install/lib/pkgconfig
+rm -rf install/lib/lib*.a

 #!/usr/bin/env bash
 set -ex
 
+if [ x$BUILD_SHARED_LIBS == xOFF ]; then
+  echo "BUILD_SHARED_LIBS=OFF is ignored for Android x86."
+  echo "Always link with libonnxruntime.so"
+  sleep 2
+fi
+
 dir=$PWD/build-android-x86
 
 mkdir -p $dir

@@ -39,7 +39,7 @@ if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
   )
 endif()
 
-add_library(sherpa-onnx-jni ${sources})
+add_library(sherpa-onnx-jni SHARED ${sources})
 
 target_compile_definitions(sherpa-onnx-jni PRIVATE SHERPA_ONNX_BUILD_SHARED_LIBS=1)
 target_compile_definitions(sherpa-onnx-jni PRIVATE SHERPA_ONNX_BUILD_MAIN_LIB=1)