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How to build TensorFlow Lite and use in Qt project?

I am trying to start project:
https://mechatronicsblog.com/tensorflow-lite-integration-with-qt-and-v-play-for-multi-platform-machine-learning-apps-on-ios-and-android/
But there is an issue - Tensorflow submodule is incorrect.
I downloaded Tensorflow library from main repo by the following command:
git clone https://github.com/tensorflow/tensorflow.git
Then I updated dependencies:
tensorflow/lite/tools/make/download_dependencies.sh
Then I built the library by the following command:
bazel build --cxxopt='-D_GLIBCXX_USE_CXX11_ABI=0' -c opt --config=android_arm tensorflow/lite/java:libtensorflowlite_jni
Here's what WORKSPACE looks like:
android_sdk_repository(
name = "androidsdk",
api_level = 21,
build_tools_version = "26.0.2",
path = "/home/user/Android/SDK",
)
android_ndk_repository(
name = "androidndk",
api_level = 20,
path = "/home/user/android-ndk-r20b",
)
The result was successful.
Then I copied the library folder and pasted it in the root of the project folder.
I did not change .pro file
# TensorFlow Lite - Global
TENSORFLOW_PATH = $$PWD/tensorflow/
TFLITE_MAKE_PATH = $$TENSORFLOW_PATH/tensorflow/lite/tools/make
INCLUDEPATH += $$TENSORFLOW_PATH \
$$TFLITE_MAKE_PATH/downloads/ \
$$TFLITE_MAKE_PATH/downloads/eigen \
$$TFLITE_MAKE_PATH/downloads/gemmlowp \
$$TFLITE_MAKE_PATH/downloads/neon_2_sse \
$$TFLITE_MAKE_PATH/downloads/farmhash/src \
$$TFLITE_MAKE_PATH/downloads/flatbuffers/include
# TensorFlow Lite - Linux
linux:!android {
INCLUDEPATH += -L$$TFLITE_MAKE_PATH/gen/linux_x86_64/obj
LIBS += -L$$TFLITE_MAKE_PATH/gen/linux_x86_64/lib/ \
-ltensorflow-lite -ldl
}
# TensorFlow Lite - Android - armv7a
android {
QT += androidextras
LIBS += -L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/c \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/core/api \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/kernels \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/kernels/internal \
-L$$TENSORFLOW_PATH/bazel-bin/external/androidndk \
-L$$TENSORFLOW_PATH/bazel-bin/external/farmhash_archive \
-L$$TENSORFLOW_PATH/bazel-bin/external/fft2d \
-L$$TENSORFLOW_PATH/bazel-bin/external/flatbuffers \
-lframework -larena_planner -lsimple_memory_arena -lutil -lapi -lc_api_internal \
-lbuiltin_ops -lbuiltin_op_kernels -lkernel_util -leigen_support -lgemm_support \
-laudio_utils -lkernel_utils -ltensor_utils -lneon_tensor_utils -lquantization_util \
-llstm_eval -lstring_util -lcpufeatures -lfarmhash -lfft2d -lflatbuffers
}
# TensorFlow Lite - iOS - Universal library
ios {
LIBS += -L$$TFLITE_MAKE_PATH/gen/lib/ \
-framework Accelerate \
-ltensorflow-lite
}
Then I built it up in the following project environment:
Qt Creator 4.11.2
Android NDK 20.1.5948944
Android SDK 26.1.1
Compiler Clang Qt 5.13.2 for Android ARMv7
JVM java-8-oracle
The result was failed.
Error:
/home/user/FelgoProjects/TensorFlowLiteQtVPlay/tensorflow/tensorflow/lite/delegates/nnapi/nnapi_delegate.h:23: error: 'absl/types/optional.h' file not found
#include "absl/types/optional.h"
I would like to know how to build up and include Tensorflow library for Qt project.
EDITED:
I edited .pro file to add libraries:
# TensorFlow Lite - Global
TENSORFLOW_PATH = $$PWD/tensorflow/
TFLITE_MAKE_PATH = $$TENSORFLOW_PATH/tensorflow/lite/tools/make
INCLUDEPATH += $$TENSORFLOW_PATH \
$$TFLITE_MAKE_PATH/downloads/ \
$$TFLITE_MAKE_PATH/downloads/eigen \
$$TFLITE_MAKE_PATH/downloads/gemmlowp \
$$TFLITE_MAKE_PATH/downloads/neon_2_sse \
$$TFLITE_MAKE_PATH/downloads/farmhash/src \
$$TFLITE_MAKE_PATH/downloads/flatbuffers/include
# TensorFlow Lite - Android - armv7a
android {
QT += androidextras
LIBS += -L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/c \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/core/api \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/kernels \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/kernels/internal \
-L$$TENSORFLOW_PATH/bazel-bin/tensorflow/lite/nnapi \
-L$$TENSORFLOW_PATH/bazel-bin/external/androidndk \
-L$$TENSORFLOW_PATH/bazel-bin/external/farmhash_archive \
-L$$TENSORFLOW_PATH/bazel-bin/external/fft2d \
-L$$TENSORFLOW_PATH/bazel-bin/external/flatbuffers \
-L$$TENSORFLOW_PATH/bazel-bin/external/flatbuffers/src \
-L$$TENSORFLOW_PATH/bazel-bin/external/ruy/ruy \
-L$$TENSORFLOW_PATH/bazel-bin/external/ruy/ruy/profiler \
-lallocation.pic -larena_planner.pic -larena_planner.pic -lminimal_logging.pic \
-lsimple_memory_arena.pic -lstring_util.pic -lutil.pic \
-lapi.pic -lbuiltin_op_kernels.pic -lbuiltin_ops.pic -lcpu_backend_context.pic -lcpu_backend_gemm.pic -leigen_support.pic \
-lkernel_util.pic -llstm_eval.pic -laudio_utils.pic -lkernel_utils.pic -lneon_tensor_utils.pic \
-lportable_tensor_utils.pic -ltensor_utils.pic -lquantization_util.pic -ltranspose_utils.pic \
-lfarmhash.pic -lfft2d.pic -lflatbuffers.pic \
-lallocator.pic -lapply_multiplier.pic -lblocking_counter.pic -lblock_map.pic -lcontext.pic -lcontext_get_ctx.pic \
-lctx.pic -ldetect_arm.pic -ldetect_x86.pic -lhave_built_path_for_avx2.pic -lhave_built_path_for_avx512.pic \
-lhave_built_path_for_avxvnni.pic -lhave_built_path_for_sse42.pic -lkernel_arm.pic -lkernel_avx2.pic \
-lkernel_avx512.pic -lkernel_avxvnni.pic -lkernel_sse42.pic -lpack_arm.pic -lpack_avx2.pic -lpack_avx512.pic \
-lpack_avxvnni.pic -lpack_sse42.pic -lprepacked_cache.pic -lthread_pool.pic -ltrace.pic -ltrmul.pic \
-ltune.pic -lwait.pic -linstrumentation.pic -lnnapi_implementation.pic -lnnapi_util.pic
}
There are some errors after building.
tensorflow/lite/util.cc:47: error: undefined reference to 'TfLiteIntArrayCreate'
tensorflow/lite/util.cc:47: error: undefined reference to 'TfLiteIntArrayCreate'
tensorflow/lite/kernels/activations.cc:265: error: undefined reference to 'TfLiteIntArrayCopy'
tensorflow/lite/kernels/activations.cc:291: error: undefined reference to 'TfLiteIntArrayCopy'
tensorflow/lite/kernels/activations.cc:380: error: undefined reference to 'TfLiteIntArrayCopy'
tensorflow/lite/kernels/activations.cc:612: error: undefined reference to 'TfLiteIntArrayCopy'
tensorflow/lite/kernels/activations.cc:729: error: undefined reference to 'TfLiteTypeGetName'
tensorflow/lite/kernels/activations.cc:757: error: undefined reference to 'TfLiteTypeGetName'
tensorflow/lite/kernels/activations.cc:840: error: undefined reference to 'TfLiteTypeGetName'
tensorflow/lite/kernels/activations.cc:1084: error: undefined reference to 'TfLiteTypeGetName'
tensorflow/lite/kernels/arg_min_max.cc:40: error: undefined reference to 'TfLiteIntArrayCreate'
tensorflow/lite/kernels/arg_min_max.cc:40: error: undefined reference to 'TfLiteIntArrayCreate'
tensorflow/lite/kernels/basic_rnn.cc:104: error: undefined reference to 'TfLiteIntArrayFree'
tensorflow/lite/kernels/basic_rnn.cc:110: error: undefined reference to 'TfLiteIntArrayEqual'
tensorflow/lite/kernels/basic_rnn.cc:120: error: undefined reference to 'TfLiteIntArrayEqual'
tensorflow/lite/kernels/basic_rnn.cc:133: error: undefined reference to 'TfLiteIntArrayEqualsArray'
tensorflow/lite/kernels/basic_rnn.cc:144: error: undefined reference to 'TfLiteIntArrayEqualsArray'
tensorflow/lite/kernels/basic_rnn.cc:157: error: undefined reference to 'TfLiteIntArrayEqualsArray'
tensorflow/lite/kernels/basic_rnn.cc:168: error: undefined reference to 'TfLiteIntArrayEqualsArray'
tensorflow/lite/kernels/batch_matmul.cc:108: error: undefined reference to 'TfLiteIntArrayFree'
tensorflow/lite/kernels/bidirectional_sequence_lstm.cc:527: error: undefined reference to 'TfLiteIntArrayFree'
tensorflow/lite/kernels/bidirectional_sequence_lstm.cc:527: error: undefined reference to 'TfLiteIntArrayFree'
tensorflow/lite/kernels/bidirectional_sequence_lstm.cc:630: error: undefined reference to 'TfLiteIntArrayEqual'
tensorflow/lite/kernels/bidirectional_sequence_lstm.cc:642: error: undefined reference to 'TfLiteIntArrayEqual'
./tensorflow/lite/kernels/internal/reference/densify.h:36: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<float>::FormatConverter(std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, TfLiteSparsity const&)'
./tensorflow/lite/kernels/internal/reference/densify.h:38: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<float>::SparseToDense(float const*)'
./tensorflow/lite/kernels/internal/reference/densify.h:36: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<signed char>::FormatConverter(std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, TfLiteSparsity const&)'
./tensorflow/lite/kernels/internal/reference/densify.h:38: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<signed char>::SparseToDense(signed char const*)'
tensorflow/lite/kernels/embedding_lookup_sparse.cc:178: error: undefined reference to 'TfLiteTensorRealloc'
tensorflow/lite/kernels/expand_dims.cc:105: error: undefined reference to 'TfLiteTensorRealloc'
./tensorflow/lite/kernels/internal/reference/sparse_ops/fully_connected.h:35: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<float>::FormatConverter(std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, TfLiteSparsity const&)'
./tensorflow/lite/kernels/internal/reference/sparse_ops/fully_connected.h:37: error: undefined reference to 'tflite::optimize::sparsity::FormatConverter<float>::SparseToDense(float const*)'
tensorflow/lite/kernels/if.cc:85: error: undefined reference to 'tflite::impl::Subgraph::ResizeInputTensor(int, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&)'
tensorflow/lite/kernels/if.cc:92: error: undefined reference to 'tflite::impl::Subgraph::AllocateTensors()'
tensorflow/lite/kernels/if.cc:85: error: undefined reference to 'tflite::impl::Subgraph::ResizeInputTensor(int, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&)'
tensorflow/lite/kernels/if.cc:92: error: undefined reference to 'tflite::impl::Subgraph::AllocateTensors()'
tensorflow/lite/kernels/if.cc:155: error: undefined reference to 'tflite::impl::Subgraph::Invoke()'
tensorflow/lite/kernels/reshape.cc:156: error: undefined reference to 'TfLiteTensorRealloc'
tensorflow/lite/kernels/while.cc:152: error: undefined reference to 'tflite::impl::Subgraph::AllocateTensors()'
tensorflow/lite/kernels/while.cc:170: error: undefined reference to 'tflite::impl::Subgraph::AllocateTensors()'
tensorflow/lite/kernels/while.cc:57: error: undefined reference to 'tflite::impl::Subgraph::ResizeInputTensor(int, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&)'
tensorflow/lite/kernels/while.cc:267: error: undefined reference to 'tflite::impl::Subgraph::Invoke()'
tensorflow/lite/kernels/while.cc:292: error: undefined reference to 'tflite::impl::Subgraph::Invoke()'
tensorflow/lite/kernels/while.cc:57: error: undefined reference to 'tflite::impl::Subgraph::ResizeInputTensor(int, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&)'
tensorflow/lite/kernels/register.cc:34: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:35: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:36: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int, int)'
tensorflow/lite/kernels/register.cc:38: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:39: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int, int)'
tensorflow/lite/kernels/register.cc:41: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int, int)'
tensorflow/lite/kernels/register.cc:43: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int, int)'
tensorflow/lite/kernels/register.cc:52: error: undefined reference to 'tflite::MutableOpResolver::AddBuiltin(tflite::BuiltinOperator, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:291: error: undefined reference to 'tflite::MutableOpResolver::AddCustom(char const*, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:294: error: undefined reference to 'tflite::MutableOpResolver::AddCustom(char const*, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:295: error: undefined reference to 'tflite::MutableOpResolver::AddCustom(char const*, TfLiteRegistration const*, int)'
tensorflow/lite/kernels/register.cc:297: error: undefined reference to 'tflite::MutableOpResolver::AddCustom(char const*, TfLiteRegistration const*, int)'
external/androidndk/ndk/sources/cxx-stl/llvm-libc++/include/unordered_map:0: error: undefined reference to 'vtable for tflite::MutableOpResolver'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
./tensorflow/lite/kernels/register.h:0: error: undefined reference to 'vtable for tflite::MutableOpResolver'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
/home/sergey/FelgoProjects/TensorFlowLiteQtVPlay/tensorflow//bazel-bin/tensorflow/lite/kernels/libbuiltin_ops.pic.a(register.pic.o):register.cc:vtable for tflite::ops::builtin::BuiltinOpResolver: error: undefined reference to 'tflite::MutableOpResolver::FindOp(tflite::BuiltinOperator, int) const'
/home/sergey/FelgoProjects/TensorFlowLiteQtVPlay/tensorflow//bazel-bin/tensorflow/lite/kernels/libbuiltin_ops.pic.a(register.pic.o):register.cc:vtable for tflite::ops::builtin::BuiltinOpResolver: error: undefined reference to 'tflite::MutableOpResolver::FindOp(char const*, int) const'
/home/sergey/FelgoProjects/TensorFlowLiteQtVPlay/tensorflow//bazel-bin/tensorflow/lite/kernels/libbuiltin_ops.pic.a(register.pic.o):register.cc:typeinfo for tflite::ops::builtin::BuiltinOpResolver: error: undefined reference to 'typeinfo for tflite::MutableOpResolver'
../../Felgo/Felgo/android_armv7/include/QtQml/qqml.h:0: error: undefined reference to 'ObjectsRecogFilter::staticMetaObject'
../../Felgo/Felgo/android_armv7/include/QtQml/qqml.h:0: error: undefined reference to 'ObjectsRecogFilter::staticMetaObject'
../TensorFlowLiteQtVPlay/auxutils.h:0: error: undefined reference to 'vtable for AuxUtils'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../../Felgo/Felgo/android_armv7/include/QtCore/qmetatype.h:0: error: undefined reference to 'ObjectsRecogFilter::staticMetaObject'
../../Felgo/Felgo/android_armv7/include/QtCore/qmetatype.h:0: error: undefined reference to 'ObjectsRecogFilter::staticMetaObject'
../TensorFlowLiteQtVPlay/objectsrecogfilter.h:0: error: undefined reference to 'vtable for ObjectsRecogFilter'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflowthread.h:0: error: undefined reference to 'vtable for TensorflowThread'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflowthread.h:0: error: undefined reference to 'vtable for WorkerTF'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflow/tensorflow/lite/mutable_op_resolver.h:0: error: undefined reference to 'vtable for tflite::MutableOpResolver'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
/home/sergey/android-ndk-r20b/sources/cxx-stl/llvm-libc++/include/memory:2339: error: undefined reference to 'tflite::FlatBufferModel::~FlatBufferModel()'
/home/sergey/android-ndk-r20b/sources/cxx-stl/llvm-libc++/include/memory:2339: error: undefined reference to 'tflite::impl::Interpreter::~Interpreter()'
main.o:main.cpp:vtable for QQmlPrivate::QQmlElement<ObjectsRecogFilter>: error: undefined reference to 'ObjectsRecogFilter::metaObject() const'
main.o:main.cpp:vtable for QQmlPrivate::QQmlElement<ObjectsRecogFilter>: error: undefined reference to 'ObjectsRecogFilter::qt_metacast(char const*)'
main.o:main.cpp:vtable for QQmlPrivate::QQmlElement<ObjectsRecogFilter>: error: undefined reference to 'ObjectsRecogFilter::qt_metacall(QMetaObject::Call, int, void**)'
main.o:main.cpp:typeinfo for QQmlPrivate::QQmlElement<ObjectsRecogFilter>: error: undefined reference to 'typeinfo for ObjectsRecogFilter'
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:16: error: undefined reference to 'ObjectsRecogFilter::initializedChanged(bool const&)'
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:0: error: undefined reference to 'vtable for ObjectsRecogFilter'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:161: error: undefined reference to 'ObjectsRecogFilter::runTensorFlow(QImage)'
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:300: error: undefined reference to 'ObjectsRecogFilter::initializedChanged(bool const&)'
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:248: error: undefined reference to 'ObjectsRecogFilter::initializedChanged(bool const&)'
../TensorFlowLiteQtVPlay/objectsrecogfilter.cpp:276: error: undefined reference to 'ObjectsRecogFilter::initializedChanged(bool const&)'
../TensorFlowLiteQtVPlay/tensorflowthread.cpp:16: error: undefined reference to 'WorkerTF::results(int, QStringList, QList<double>, QList<QRectF>, double)'
../TensorFlowLiteQtVPlay/tensorflowthread.cpp:17: error: undefined reference to 'WorkerTF::finished()'
../TensorFlowLiteQtVPlay/tensorflowthread.cpp:0: error: undefined reference to 'vtable for TensorflowThread'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflowthread.cpp:47: error: undefined reference to 'TensorflowThread::results(int, QStringList, QList<double>, QList<QRectF>, double)'
../TensorFlowLiteQtVPlay/tensorflowthread.h:0: error: undefined reference to 'vtable for WorkerTF'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:109: error: undefined reference to 'tflite::FlatBufferModel::BuildFromFile(char const*, tflite::ErrorReporter*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:118: error: undefined reference to 'tflite::impl::InterpreterBuilder::InterpreterBuilder(tflite::FlatBufferModel const&, tflite::OpResolver const&)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:121: error: undefined reference to 'tflite::impl::InterpreterBuilder::operator()(std::__ndk1::unique_ptr<tflite::impl::Interpreter, std::__ndk1::default_delete<tflite::impl::Interpreter> >*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:128: error: undefined reference to 'tflite::impl::Interpreter::UseNNAPI(bool)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:131: error: undefined reference to 'tflite::impl::Interpreter::SetNumThreads(int)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:136: error: undefined reference to 'tflite::impl::Interpreter::AllocateTensors()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:166: error: undefined reference to 'tflite::impl::InterpreterBuilder::~InterpreterBuilder()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:166: error: undefined reference to 'tflite::impl::InterpreterBuilder::~InterpreterBuilder()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:272: error: undefined reference to 'tflite::impl::Interpreter::Invoke()'
../TensorFlowLiteQtVPlay/tensorflow/tensorflow/lite/stderr_reporter.h:0: error: undefined reference to 'vtable for tflite::StderrReporter'
/home/sergey/android-ndk-r20b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld: the vtable symbol may be undefined because the class is missing its key function
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:316: error: undefined reference to 'tflite::DefaultErrorReporter()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:316: error: undefined reference to 'tflite::impl::Interpreter::Interpreter(tflite::ErrorReporter*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:321: error: undefined reference to 'tflite::impl::Interpreter::AddTensors(int, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:324: error: undefined reference to 'tflite::impl::Interpreter::AddTensors(int, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:327: error: undefined reference to 'tflite::impl::Interpreter::SetInputs(std::__ndk1::vector<int, std::__ndk1::allocator<int> >)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:328: error: undefined reference to 'tflite::impl::Interpreter::SetOutputs(std::__ndk1::vector<int, std::__ndk1::allocator<int> >)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:337: error: undefined reference to 'tflite::MutableOpResolver::FindOp(tflite::BuiltinOperator, int) const'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:340: error: undefined reference to 'tflite::impl::Interpreter::AddNodeWithParameters(std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, char const*, unsigned int, void*, TfLiteRegistration const*, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:341: error: undefined reference to 'tflite::impl::Interpreter::AllocateTensors()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:354: error: undefined reference to 'tflite::impl::Interpreter::Invoke()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:316: error: undefined reference to 'tflite::DefaultErrorReporter()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:316: error: undefined reference to 'tflite::impl::Interpreter::Interpreter(tflite::ErrorReporter*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:321: error: undefined reference to 'tflite::impl::Interpreter::AddTensors(int, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:324: error: undefined reference to 'tflite::impl::Interpreter::AddTensors(int, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:327: error: undefined reference to 'tflite::impl::Interpreter::SetInputs(std::__ndk1::vector<int, std::__ndk1::allocator<int> >)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:328: error: undefined reference to 'tflite::impl::Interpreter::SetOutputs(std::__ndk1::vector<int, std::__ndk1::allocator<int> >)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:337: error: undefined reference to 'tflite::MutableOpResolver::FindOp(tflite::BuiltinOperator, int) const'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:340: error: undefined reference to 'tflite::impl::Interpreter::AddNodeWithParameters(std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, std::__ndk1::vector<int, std::__ndk1::allocator<int> > const&, char const*, unsigned int, void*, TfLiteRegistration const*, int*)'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:341: error: undefined reference to 'tflite::impl::Interpreter::AllocateTensors()'
../TensorFlowLiteQtVPlay/tensorflowlite.cpp:354: error: undefined reference to 'tflite::impl::Interpreter::Invoke()'
../TensorFlowLiteQtVPlay/tensorflow/tensorflow/lite/interpreter.h:178: error: undefined reference to 'tflite::impl::Interpreter::SetTensorParametersReadWrite(int, TfLiteType, char const*, unsigned int, int const*, TfLiteQuantizationParams, bool, unsigned int, int const*)'
tensorflow/lite/string_util.cc:108: error: undefined reference to 'TfLiteTensorReset'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [libTensorFlowLiteQtVPlay.so] Error 1

I am the author of this tutorial. Could you try to compile TensorFlow with libstdc++ by using this command as described in the tutorial:
bazel build --cxxopt='--std=c++11' -c opt --config=android_arm tensorflow/lite/java:libtensorflowlite_jni
Maybe your problem is related to mixing libc++ and libstdc++, Qt uses libstdc++ and you are compiling TensorFlow with libc++ in your bazel command.
Let me know if this helps.

How to compile LLVM/Clang for Android?

I'm trying to compile LLVM/Clang 8.0.1 for Android with Cmake (since autotools i used before are no longer supported) on mac.
I'm using https://github.com/llvm/llvm-project.git.
In build dir i'm using the following configure script (followed manuals):
cmake ../llvm \
-DCMAKE_INSTALL_PREFIX=/Users/asmirnov/Library/Android/llvm_android_arm \
-DLLVM_ENABLE_PROJECTS=clang \
-DLLVM_ENABLE_TERMINFO=OFF \
-DLLVM_ENABLE_THREADS=OFF \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_TARGETS_TO_BUILD="ARM;X86" \
-DLIBCLANG_BUILD_STATIC=ON \
-DLLVM_INCLUDE_TESTS=OFF \
-DLLVM_ENABLE_ZLIB=OFF \
\
-DCMAKE_CROSSCOMPILING=True \
-DLLVM_TABLEGEN=/Users/asmirnov/Library/Android/llvm/bin/llvm-tblgen \
-DCLANG_TABLEGEN=/Users/asmirnov/Documents/dev/src/llvm-project/build/bin/clang-tblgen \
-DLLVM_DEFAULT_TARGET_TRIPLE=arm-linux-gnueabihf \
-DLLVM_TARGET_ARCH=ARM \
-DBUILD_SHARED_LIBS=ON \
-DLLVM_ENABLE_PIC=False \
-DCMAKE_TOOLCHAIN_FILE=/Users/asmirnov/Library/Android/ndk/android-ndk-r20/build/cmake/android.toolchain.cmake
As you can see i'm using CMake toolchain file from Android NDK (20).
Also i've compiled it locally and passing LLVM_TABLEGEN and CLANG_TABLEGEN.
Configuration went successfully, but during the build i get the following errors:
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:27: error: undefined reference to 'llvm::Pass::~Pass()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:33: error: undefined reference to 'llvm::errs()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:34: error: undefined reference to 'llvm::errs()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:34: error: undefined reference to 'llvm::Value::getName() const'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:34: error: undefined reference to 'llvm::raw_ostream::write_escaped(llvm::StringRef, bool)'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/Support/raw_ostream.h:149: error: undefined reference to 'llvm::raw_ostream::write(unsigned char)'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/Support/raw_ostream.h:174: error: undefined reference to 'llvm::raw_ostream::write(char const*, unsigned int)'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:45: error: undefined reference to 'llvm::Pass::~Pass()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:51: error: undefined reference to 'llvm::errs()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:52: error: undefined reference to 'llvm::errs()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:52: error: undefined reference to 'llvm::Value::getName() const'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/lib/Transforms/Hello/Hello.cpp:52: error: undefined reference to 'llvm::raw_ostream::write_escaped(llvm::StringRef, bool)'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/PassSupport.h:98: error: undefined reference to 'llvm::PassRegistry::getPassRegistry()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/PassSupport.h:98: error: undefined reference to 'llvm::PassRegistry::registerPass(llvm::PassInfo const&, bool)'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/PassSupport.h:98: error: undefined reference to 'llvm::PassRegistry::getPassRegistry()'
/Users/asmirnov/Documents/dev/src/llvm-project/llvm/include/llvm/PassSupport.h:98: error: undefined reference to 'llvm::PassRegistry::registerPass(llvm::PassInfo const&, bool)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::~Pass()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::getPassName() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::print(llvm::raw_ostream&, llvm::Module const*) const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::FunctionPass::createPrinterPass(llvm::raw_ostream&, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::FunctionPass::assignPassManager(llvm::PMStack&, llvm::PassManagerType)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::preparePassManager(llvm::PMStack&)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::FunctionPass::getPotentialPassManagerType() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::getAnalysisUsage(llvm::AnalysisUsage&) const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::releaseMemory()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::getAdjustedAnalysisPointer(void const*)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::getAsImmutablePass()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::getAsPMDataManager()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::verifyAnalysis() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello: error: undefined reference to 'llvm::Pass::dumpPassStructure(unsigned int)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::~Pass()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::getPassName() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::print(llvm::raw_ostream&, llvm::Module const*) const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::FunctionPass::createPrinterPass(llvm::raw_ostream&, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&) const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::FunctionPass::assignPassManager(llvm::PMStack&, llvm::PassManagerType)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::preparePassManager(llvm::PMStack&)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::FunctionPass::getPotentialPassManagerType() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::releaseMemory()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::getAdjustedAnalysisPointer(void const*)'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::getAsImmutablePass()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::getAsPMDataManager()'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::verifyAnalysis() const'
CMakeFiles/LLVMHello.dir/Hello.cpp.o:Hello.cpp:vtable for (anonymous namespace)::Hello2: error: undefined reference to 'llvm::Pass::dumpPassStructure(unsigned int)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [lib/LLVMHello.so] Error 1
make[1]: *** [lib/Transforms/Hello/CMakeFiles/LLVMHello.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
Am i doing anything wrong? Is it LLVM/Clang bug? Any workaround?

I don't know if this is your only problem, but this is definitely wrong and could cause Clang to not find the right libraries:
-DLLVM_DEFAULT_TARGET_TRIPLE=arm-linux-gnueabihf
Android is arm-linux-androideabi$API_LEVEL. arm-linux-gnueabihf is a GNU/Linux target.

Yup, this requires some work arounds similar to this. Also use -DLLVM_DEFAULT_TARGET_TRIPLE="armv7a-linux-androideabi"

My application won't link using OpenSSL on Android

I'm including OpenSSL in my Android project using david-hoze/build-openssl-android: Builds openssl 1.1.0h with android ndk r17..
This is my setup:
Android Studio 3.2
NDK version: 18.0.5002713
This is my app's build.gradle file:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
def my_openssl_dir = getRootDir().toString() + "/build-openssl-android/openssl-lib"
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.my-company.my-app"
minSdkVersion 21
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags "-std=c++17 -frtti -fexceptions"
arguments '-DANDROID_STL=c++_shared'
arguments '-DMY_OPENSSL_DIR=' + my_openssl_dir
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
sourceSets {
main {
jniLibs.srcDirs = [
]
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'org.jetbrains.kotlin:kotlin-reflect:1.2.30'
}
This is my CMakeLists.txt file:
cmake_minimum_required(VERSION 3.4.1)
include_directories( src/main/cpp/
)
add_library( # Sets the name of the library.
my-library
SHARED
src/main/cpp/my-code.cpp
)
find_library (log-lib log)
add_library(libcrypto STATIC IMPORTED)
set_target_properties(libcrypto PROPERTIES IMPORTED_LOCATION
${MY_OPENSSL_DIR}/${ANDROID_ABI}/libcrypto.a)
add_library(libssl STATIC IMPORTED)
set_target_properties(libssl PROPERTIES IMPORTED_LOCATION
${MY_OPENSSL_DIR}/${ANDROID_ABI}/libssl.a)
target_include_directories(nativ PRIVATE
${MY_OPENSSL_DIR}/${ANDROID_ABI}/include
)
target_link_libraries( # Specifies the target library.
my-library
libcrypto
libssl
${log-lib}
)
And I'm getting these errors while compiling:
Build command failed. Error while executing process
/home/david/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments
{--build
/home/david/dev/android/MyApplication/app/.externalNativeBuild/cmake/debug/x86_64
--target my-library} [1/1] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/x86_64/libnativ.so
FAILED: : &&
/home/david/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++
--target=x86_64-none-linux-android21 --gcc-toolchain=/home/david/Android/Sdk/ndk-bundle/toolchains/x86_64-4.9/prebuilt/linux-x86_64
--sysroot=/home/david/Android/Sdk/ndk-bundle/sysroot -fPIC -isystem /home/david/Android/Sdk/ndk-bundle/sysroot/usr/include/x86_64-linux-android
-g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++17 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /home/david/Android/Sdk/ndk-bundle/platforms/android-21/arch-x86_64
-Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -L/home/david/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86_64
-Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libnativ.so -o ../../../../build/intermediates/cmake/debug/obj/x86_64/libnativ.so
CMakeFiles/my-library.dir/src/main/cpp/my-code.cpp.o
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libcrypto.a
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a
/home/david/Android/Sdk/ndk-bundle/platforms/android-21/arch-x86_64/usr/lib64/liblog.so
-latomic -lm "/home/david/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86_64/libc++_shared.so"
&& :
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
do_load_builtin_compressions_ossl_: error: undefined reference to
'COMP_get_type'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
do_load_builtin_compressions_ossl_: error: undefined reference to
'COMP_get_name'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
ssl_cipher_get_evp: error: undefined reference to 'FIPS_mode'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
ssl_cipher_get_evp: error: undefined reference to 'EVP_enc_null'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
ssl_create_cipher_list: error: undefined reference to 'FIPS_mode'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
ssl_create_cipher_list: error: undefined reference to 'FIPS_mode'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
SSL_COMP_add_compression_method: error: undefined reference to
'COMP_get_type'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_ciph.o):ssl_ciph.c:function
SSL_COMP_get_name: error: undefined reference to 'COMP_get_name'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_conf.o):ssl_conf.c:function
cmd_VerifyCAFile: error: undefined reference to
'X509_STORE_load_locations'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_conf.o):ssl_conf.c:function
cmd_ChainCAPath: error: undefined reference to
'X509_STORE_load_locations'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_conf.o):ssl_conf.c:function
cmd_ChainCAFile: error: undefined reference to
'X509_STORE_load_locations'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_conf.o):ssl_conf.c:function
cmd_VerifyCAPath: error: undefined reference to
'X509_STORE_load_locations'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_read: error: undefined reference to 'ASYNC_WAIT_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_peek: error: undefined reference to 'ASYNC_WAIT_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_write: error: undefined reference to 'ASYNC_WAIT_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_shutdown: error: undefined reference to 'ASYNC_WAIT_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_CTX_new: error: undefined reference to 'FIPS_mode'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_clear_cipher_ctx: error: undefined reference to 'COMP_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_clear_cipher_ctx: error: undefined reference to 'COMP_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_CTX_set_default_verify_dir: error: undefined reference to
'X509_LOOKUP_hash_dir'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_CTX_set_default_verify_file: error: undefined reference to
'X509_LOOKUP_file'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_free: error: undefined reference to 'ASYNC_WAIT_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get0_peer_scts: error: undefined reference to
'OCSP_response_get1_basic'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get0_peer_scts: error: undefined reference to 'OCSP_resp_count'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get0_peer_scts: error: undefined reference to 'OCSP_resp_get0'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get0_peer_scts: error: undefined reference to
'OCSP_SINGLERESP_get1_ext_d2i'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_set1_cert'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_set1_issuer'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_set_time'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
ssl_validate_ct: error: undefined reference to
'CT_POLICY_EVAL_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get_all_async_fds: error: undefined reference to
'ASYNC_WAIT_CTX_get_all_fds'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get_changed_async_fds: error: undefined reference to
'ASYNC_WAIT_CTX_get_changed_fds'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get_current_compression: error: undefined reference to
'COMP_CTX_get_method'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_get_current_expansion: error: undefined reference to
'COMP_CTX_get_method'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_lib.o):ssl_lib.c:function
SSL_CTX_set_default_verify_paths: error: undefined reference to
'X509_STORE_set_default_paths'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_use_certificate_file: error: undefined reference to
'PEM_read_bio_X509'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_use_RSAPrivateKey_file: error: undefined reference to
'PEM_read_bio_RSAPrivateKey'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_CTX_use_certificate_file: error: undefined reference to
'PEM_read_bio_X509'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_CTX_use_RSAPrivateKey_file: error: undefined reference to
'PEM_read_bio_RSAPrivateKey'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_CTX_use_certificate_chain_file: error: undefined reference to
'PEM_read_bio_X509_AUX'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_CTX_use_certificate_chain_file: error: undefined reference to
'PEM_read_bio_X509'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_use_certificate_chain_file: error: undefined reference to
'PEM_read_bio_X509_AUX'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_rsa.o):ssl_rsa.c:function
SSL_use_certificate_chain_file: error: undefined reference to
'PEM_read_bio_X509'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(statem_clnt.o):statem_clnt.c:function
ssl3_check_cert_and_algorithm: error: undefined reference to
'X509_certificate_type'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(statem_srvr.o):statem_srvr.c:function
tls_process_cert_verify: error: undefined reference to
'X509_certificate_type'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(t1_lib.o):t1_lib.c:function
ssl_get_auto_dh: error: undefined reference to
'BN_get_rfc3526_prime_3072'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(t1_lib.o):t1_lib.c:function
ssl_get_auto_dh: error: undefined reference to
'BN_get_rfc3526_prime_8192'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
SSL_srp_server_param_with_username: error: undefined reference to
'SRP_Calc_B'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
SSL_set_srp_server_param_pw: error: undefined reference to
'SRP_get_default_gN'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
SSL_set_srp_server_param_pw: error: undefined reference to
'SRP_create_verifier_BN'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_server_master_secret: error: undefined reference to
'SRP_Verify_A_mod_N'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_server_master_secret: error: undefined reference to
'SRP_Calc_u'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_server_master_secret: error: undefined reference to
'SRP_Calc_server_key'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_client_master_secret: error: undefined reference to
'SRP_Verify_B_mod_N'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_client_master_secret: error: undefined reference to
'SRP_Calc_u'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_client_master_secret: error: undefined reference to
'SRP_Calc_x'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_generate_client_master_secret: error: undefined reference to
'SRP_Calc_client_key'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
srp_verify_server_param: error: undefined reference to
'SRP_check_known_gN_param'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(tls_srp.o):tls_srp.c:function
SRP_Calc_A_param: error: undefined reference to 'SRP_Calc_A'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl3_record.o):ssl3_record.c:function
ssl3_do_uncompress: error: undefined reference to 'COMP_expand_block'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl3_record.o):ssl3_record.c:function
ssl3_do_compress: error: undefined reference to 'COMP_compress_block'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(s3_enc.o):s3_enc.c:function
ssl3_change_cipher_state: error: undefined reference to
'COMP_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(s3_enc.o):s3_enc.c:function
ssl3_change_cipher_state: error: undefined reference to 'COMP_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(s3_enc.o):s3_enc.c:function
ssl3_change_cipher_state: error: undefined reference to
'COMP_CTX_free'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(s3_enc.o):s3_enc.c:function
ssl3_change_cipher_state: error: undefined reference to 'COMP_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'UINT32_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'INT32_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'ZINT64_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'ZINT64_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'ZINT32_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'ZUINT64_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_asn1.o):ssl_asn1.c:SSL_SESSION_ASN1_seq_tt:
error: undefined reference to 'ZUINT64_it'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_cert.o):ssl_cert.c:function
SSL_add_dir_cert_subjects_to_stack: error: undefined reference to
'OPENSSL_DIR_read'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_cert.o):ssl_cert.c:function
SSL_add_dir_cert_subjects_to_stack: error: undefined reference to
'OPENSSL_DIR_end'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(ssl_cert.o):ssl_cert.c:function
ssl_build_cert_chain: error: undefined reference to
'X509_verify_cert_error_string'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(t1_enc.o):t1_enc.c:function
tls1_change_cipher_state: error: undefined reference to 'COMP_CTX_new'
/home/david/dev/android/MyApplication/build-openssl-android/openssl-lib/x86_64/libssl.a(t1_enc.o):t1_enc.c:function
tls1_change_cipher_state: error: undefined reference to 'COMP_CTX_new'
clang++: error: linker command failed with exit code 1 (use -v to see
invocation) ninja: build stopped: subcommand failed.
Would appreciate your help.

The problem was the link order, I changed the order of libssl and libcrypto in my CMakelists.txt file like so:
cmake_minimum_required(VERSION 3.4.1)
include_directories( src/main/cpp/
)
add_library( # Sets the name of the library.
my-library
SHARED
src/main/cpp/my-code.cpp
)
find_library (log-lib log)
add_library(libcrypto STATIC IMPORTED)
set_target_properties(libcrypto PROPERTIES IMPORTED_LOCATION
${MY_OPENSSL_DIR}/${ANDROID_ABI}/libcrypto.a)
add_library(libssl STATIC IMPORTED)
set_target_properties(libssl PROPERTIES IMPORTED_LOCATION
${MY_OPENSSL_DIR}/${ANDROID_ABI}/libssl.a)
target_include_directories(nativ PRIVATE
${MY_OPENSSL_DIR}/${ANDROID_ABI}/include
)
target_link_libraries( # Specifies the target library.
my-library
libssl
libcrypto
${log-lib}
)
And it compiles fine

Linking to ceres library on Android

I'm trying to compile and deploy ceres solver into an Android project.
I successfully compiled ceres (1.8.0 and 1.9.0, tried both), running ndk-build from the ceres jni folder.
Then, I use QtCreator to compile and deploy and Android project. It fails with the following error:
B:\Android\android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++ --sysroot=B:\Android\android-ndk-r10e/platforms/android-9/arch-arm/ -Wl,-soname,libtest_3rdparty_inprg_ceres.so -Wl,--no-undefined -Wl,-z,noexecstack -shared -o libtest_3rdparty_inprg_ceres.so main.obj logging.obj -LB:\Android\android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a -LB:\Android\android-ndk-r10e/platforms/android-9/arch-arm//usr/lib -lb:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a -LC:/Qt/5.5/android_armv7/lib -lQt5Widgets -Lc:\utils\android\ndk/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a -Lc:\utils\android\ndk/platforms/android-9/arch-arm//usr/lib -lQt5Gui -lQt5Core -lGLESv2 -lgnustl_shared -llog -lz -lm -ldl -lc -lgcc
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/memory:3639: error: undefined reference to 'std::__1::__shared_weak_count::~__shared_weak_count()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/memory:4448: error: undefined reference to 'std::__1::__shared_weak_count::__release_shared()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:524: error: undefined reference to 'std::__1::ios_base::clear(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/memory:4154: error: undefined reference to 'std::__1::__shared_weak_count::__add_shared()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/memory:4154: error: undefined reference to 'std::__1::__shared_weak_count::__add_shared()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::ios_base::getloc() const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__locale:174: error: undefined reference to 'std::__1::locale::use_facet(std::__1::locale::id&) const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::locale::~locale()'
B:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/jni/../internal/ceres/solver_impl.cc:123: error: undefined reference to 'std::__1::cout'
B:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/jni/../internal/ceres/solver_impl.cc:123: error: undefined reference to 'std::__1::ctype<char>::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::ios_base::getloc() const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__locale:174: error: undefined reference to 'std::__1::locale::use_facet(std::__1::locale::id&) const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::locale::~locale()'
B:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/jni/../internal/ceres/solver_impl.cc:158: error: undefined reference to 'std::__1::cout'
B:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/jni/../internal/ceres/solver_impl.cc:158: error: undefined reference to 'std::__1::ctype<char>::id'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(solver_impl.o):solver_impl.cc:vtable for std::__1::__shared_ptr_pointer<ceres::OrderedGroups<double*>*, std::__1::default_delete<ceres::OrderedGroups<double*> >, std::__1::allocator<ceres::OrderedGroups<double*> > >: error: undefined reference to 'std::__1::__shared_weak_count::__get_deleter(std::type_info const&) const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:508: error: undefined reference to 'std::__1::ios_base::getloc() const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__locale:174: error: undefined reference to 'std::__1::locale::use_facet(std::__1::locale::id&) const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:508: error: undefined reference to 'std::__1::locale::~locale()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::ios_base::getloc() const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__locale:174: error: undefined reference to 'std::__1::locale::use_facet(std::__1::locale::id&) const'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:734: error: undefined reference to 'std::__1::locale::~locale()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:524: error: undefined reference to 'std::__1::ios_base::clear(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:520: error: undefined reference to 'std::__1::num_put<char, std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > >::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:520: error: undefined reference to 'std::__1::ctype<char>::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:668: error: undefined reference to 'std::__1::ios_base::init(void*)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/streambuf:370: error: undefined reference to 'std::__1::locale::locale()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__hash_table:1944: error: undefined reference to 'std::__1::__next_prime(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__hash_table:1955: error: undefined reference to 'std::__1::__next_prime(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__hash_table:1944: error: undefined reference to 'std::__1::__next_prime(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/__hash_table:1955: error: undefined reference to 'std::__1::__next_prime(unsigned int)'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(schur_eliminator.o):schur_eliminator.cc:vtable for ceres::internal::SchurEliminator<2, 4, 8>: error: undefined reference to 'ceres::internal::SchurEliminator<2, 4, 8>::~SchurEliminator()'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(schur_eliminator.o):schur_eliminator.cc:vtable for ceres::internal::SchurEliminator<2, 4, 8>: error: undefined reference to 'ceres::internal::SchurEliminator<2, 4, 8>::~SchurEliminator()'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(schur_eliminator.o):schur_eliminator.cc:vtable for ceres::internal::SchurEliminator<2, 4, 8>: error: undefined reference to 'ceres::internal::SchurEliminator<2, 4, 8>::Init(int, ceres::internal::CompressedRowBlockStructure const*)'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(schur_eliminator.o):schur_eliminator.cc:vtable for ceres::internal::SchurEliminator<2, 4, 8>: error: undefined reference to 'ceres::internal::SchurEliminator<2, 4, 8>::Eliminate(ceres::internal::BlockSparseMatrix const*, double const*, double const*, ceres::internal::BlockRandomAccessMatrix*, double*)'
b:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/lib/android_armeabi-v7a/gcc-4.8/libceres.a(schur_eliminator.o):schur_eliminator.cc:vtable for ceres::internal::SchurEliminator<2, 4, 8>: error: undefined reference to 'ceres::internal::SchurEliminator<2, 4, 8>::BackSubstitute(ceres::internal::BlockSparseMatrix const*, double const*, double const*, double const*, double*)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3077: error: undefined reference to 'std::__1::__rs_get()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:2912: error: undefined reference to 'std::__1::__rs_default::operator()()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:2912: error: undefined reference to 'std::__1::__rs_default::operator()()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3083: error: undefined reference to 'std::__1::__rs_default::~__rs_default()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3077: error: undefined reference to 'std::__1::__rs_get()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:2912: error: undefined reference to 'std::__1::__rs_default::operator()()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:2912: error: undefined reference to 'std::__1::__rs_default::operator()()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3083: error: undefined reference to 'std::__1::__rs_default::~__rs_default()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3077: error: undefined reference to 'std::__1::__rs_get()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3083: error: undefined reference to 'std::__1::__rs_default::~__rs_default()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3077: error: undefined reference to 'std::__1::__rs_get()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/algorithm:3083: error: undefined reference to 'std::__1::__rs_default::~__rs_default()'
B:/dev/vobs_ext/libcpp/ceres/ceres-solver-1.9.0/jni/../internal/ceres/partitioned_matrix_view.cc:118: error: undefined reference to 'ceres::internal::PartitionedMatrixView<2, 4, 8>::PartitionedMatrixView(ceres::internal::BlockSparseMatrix const&, int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:661: error: undefined reference to 'std::__1::ios_base::~ios_base()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:524: error: undefined reference to 'std::__1::ios_base::clear(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/streambuf:370: error: undefined reference to 'std::__1::locale::locale()'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:524: error: undefined reference to 'std::__1::ios_base::clear(unsigned int)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:494: error: undefined reference to 'std::__1::num_put<char, std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > >::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:494: error: undefined reference to 'std::__1::ctype<char>::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:728: error: undefined reference to 'std::__1::num_put<char, std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > >::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ostream:676: error: undefined reference to 'std::__1::num_put<char, std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > >::id'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:668: error: undefined reference to 'std::__1::ios_base::init(void*)'
B:/Android/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include/ios:668: error: undefined reference to 'std::__1::ios_base::init(void*)'
collect2.exe: error: ld returned 1 exit status
makefile:82: recipe for target 'libtest_3rdparty_inprg_ceres.so' failed
mingw32-make: *** [libtest_3rdparty_inprg_ceres.so] Error 1
13:17:13: Le processus "C:\Qt\Tools\mingw492_32\bin\mingw32-make.exe" s'est terminé avec le code 2.
Erreur lors de la compilation/déploiement du projet test_3rdparty_inprg_ceres (kit : Android for armeabi-v7a (GCC 4.9, Qt 5.5.0))
When executing step "Make"
13:17:13: Temps écoulé : 00:08.
I'm wondering if this could be due to ceres linking with c++ libraries statically, while my program links then dynamically....but have no clue how to solve this.

All libraries in your app SHOULD use the same STL runtime. But speaking about static libraries, they MUST use the same STL configuration. If you did not change cerces-solver/jni/Application.mk, it will expect APP_STL=c++_static. You can override this to use APP_STL=c++_shared, but you need a very good reason to change the way this external library is built. Much easier to switch your program to APP_STL=c++_static.
Edited by jpo38:
There are actually other things to be changed to have libceres.so be generated instead of libceres.a:
Add LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog in Android.mk
Replace include $(BUILD_STATIC_LIBRARY) by include $(BUILD_SHARED_LIBRARY) in Android.mk
Add -DCERES_BUILDING_SHARED_LIBRARY and -DCERES_RESTRICT_SCHUR_SPECIALIZATION (dunno why this second one helps, looks like Shur stuff does not like shared linkage) to LOCAL_CFLAGS in Android.mk
Then, the dynamic library is generated and may be used.

Error on make VideoLibs while building CSipSimple for android

I have successfully build CSipSimple for android by make command. After that, when I try to build video support libary by calling make VideoLibs command, there is an error appears.
[armeabi] SharedLibrary : libpj_video_android.so
[armeabi-v7a] SharedLibrary : libpj_video_android.so
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1086: error: undefined reference to 'av_strerror'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1324: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1325: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1328: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1329: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1430: error: undefined reference to 'avcodec_get_frame_defaults'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1455: error: undefined reference to 'av_init_packet'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1460: error: undefined reference to 'avcodec_encode_video2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:409: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:427: error: undefined reference to 'av_opt_set_int'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:434: error: undefined reference to 'av_opt_set_int'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:442: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:445: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1116: error: undefined reference to 'avcodec_alloc_context3'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1125: error: undefined reference to 'avcodec_alloc_context3'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1185: error: undefined reference to 'avcodec_open2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1200: error: undefined reference to 'avcodec_open2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1222: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1223: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1228: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1229: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1680: error: undefined reference to 'avcodec_get_frame_defaults'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1683: error: undefined reference to 'av_init_packet'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1705: error: undefined reference to 'avcodec_decode_video2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:629: error: undefined reference to 'avcodec_register_all'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:632: error: undefined reference to 'av_codec_next'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:172: error: undefined reference to 'sws_freeContext'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:152: error: undefined reference to 'sws_scale'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:112: error: undefined reference to 'sws_getContext'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:113: error: undefined reference to 'av_log_get_level'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:88: error: undefined reference to 'av_log_set_level'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:89: error: undefined reference to 'av_log_set_callback'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:90: error: undefined reference to 'av_register_all'
collect2: error: ld returned 1 exit status
make[1]: *** [obj/local/armeabi/libpj_video_android.so] Error 1
make[1]: *** Waiting for unfinished jobs....
[armeabi-v7a] Install : libpjsipjni.so => ./libs/armeabi-v7a/libpjsipjni.so
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1086: error: undefined reference to 'av_strerror'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1324: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1325: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1328: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1329: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1430: error: undefined reference to 'avcodec_get_frame_defaults'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1455: error: undefined reference to 'av_init_packet'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1460: error: undefined reference to 'avcodec_encode_video2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:409: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:427: error: undefined reference to 'av_opt_set_int'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:434: error: undefined reference to 'av_opt_set_int'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:442: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:445: error: undefined reference to 'av_opt_set'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1116: error: undefined reference to 'avcodec_alloc_context3'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1125: error: undefined reference to 'avcodec_alloc_context3'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1185: error: undefined reference to 'avcodec_open2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1200: error: undefined reference to 'avcodec_open2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1222: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1223: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1228: error: undefined reference to 'avcodec_close'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1229: error: undefined reference to 'av_free'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1680: error: undefined reference to 'avcodec_get_frame_defaults'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1683: error: undefined reference to 'av_init_packet'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:1705: error: undefined reference to 'avcodec_decode_video2'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:629: error: undefined reference to 'avcodec_register_all'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:632: error: undefined reference to 'av_codec_next'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia-codec/ffmpeg_vid_codecs.c:632: error: undefined reference to 'av_codec_next'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:172: error: undefined reference to 'sws_freeContext'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:152: error: undefined reference to 'sws_scale'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/converter_libswscale.c:112: error: undefined reference to 'sws_getContext'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:113: error: undefined reference to 'av_log_get_level'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:88: error: undefined reference to 'av_log_set_level'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:89: error: undefined reference to 'av_log_set_callback'
jni/pjsip/android_toolchain/pjmedia/../../sources/pjmedia/src/pjmedia/ffmpeg_util.c:90: error: undefined reference to 'av_register_all'
collect2: error: ld returned 1 exit status
make[1]: *** [obj/local/armeabi-v7a/libpj_video_android.so] Error 1
make[1]: Leaving directory `/home/alexchengalan/android/files/CSipSimple-trunk/CSipSimple'
make: *** [VideoLibs] Error 2
It would be great if anyone can help me out of this problem.

Modify jni\pjsip\android_toolchain\pjmedia\Video.mk; then, it would be ok.
# Ffmpeg codec
BASE_FFMPEG_BUILD_DIR := $(LOCAL_PATH)/../../../ffmpeg/build/ffmpeg/$(TARGET_ARCH_ABI)/lib
LOCAL_LDLIBS += $(BASE_FFMPEG_BUILD_DIR)/libavcodec.a \
$(BASE_FFMPEG_BUILD_DIR)/libavformat.a \
$(BASE_FFMPEG_BUILD_DIR)/libswscale.a \
$(BASE_FFMPEG_BUILD_DIR)/libavutil.a
# Add X264
BASE_X264_BUILD_DIR := $(LOCAL_PATH)/../../../ffmpeg/build/x264/$(TARGET_ARCH_ABI)/lib
LOCAL_LDLIBS += $(BASE_X264_BUILD_DIR)/libx264.a
For details, see: (https://groups.google.com/forum/#!topic/csipsimple-dev/bSauDx-hnR0)