Develop Reference

stlport related unresolved external

I'm using NDK build & seeing this weird linker error:
./external/stlport/stlport/stl/_fstream.c:139: error: undefined reference to 'std::_Filebuf_base::_M_seek(long long, int)'
./external/stlport/stlport/stl/_fstream.c:391: error: undefined reference to 'std::_Filebuf_base::_M_seek(long long, int)'
./external/stlport/stlport/stl/_fstream.c:120: error: undefined reference to 'std::_Filebuf_base::_M_unmap(void*, long long)'
./external/stlport/stlport/stl/_fstream.c:320: error: undefined reference to 'std::_Filebuf_base::_M_seek(long long, int)'
./external/stlport/stlport/stl/_fstream.c:336: error: undefined reference to 'std::_Filebuf_base::_M_seek(long long, int)'
./external/stlport/stlport/stl/_fstream.c:120: error: undefined reference to 'std::_Filebuf_base::_M_unmap(void*, long long)'
./external/stlport/stlport/stl/_fstream.c:120: error: undefined reference to 'std::_Filebuf_base::_M_unmap(void*, long long)'
./external/stlport/stlport/stl/_fstream.c:120: error: undefined reference to 'std::_Filebuf_base::_M_unmap(void*, long long)'
collect2: error: ld returned 1 exit status
I got the objdump output of fstream.o & I do see this _M_seek() function. Any ideas why it's still not able to find it. Here are some entries in my Android.mk:
LOCAL_C_INCLUDES += $(TOP)/external/stlport/stlport \
$(TOP)/bionic/libstdc++/include \
$(TOP)/bionic \
LOCAL_CFLAGS += -std=gnu++11 -std=c++11
LOCAL_CPPFLAGS := -std=gnu++11 -std=c++11
LOCAL_SHARED_LIBRARIES := libcutils liblog libutils libstlport
Am I missing anything?

See if you defined _LARGEFILE_SOURCE in your Android.mk file. If it had been defined, remove it can solve the problem.

Compile JNI library that includes OpenCV headers

Hy!
I have an Android project with a cpp file that needs to be compiled. This file is including some headers of the OpenCV library. The OpenCV source files are under jni/include/opencv2 folder as you can see in Android.mk file. When I try to compile with the ndk-build the file the compiler gives the following error:
"undefined reference to"
It seems that is a "error: undefined reference to" problem to all this files.
The Android.mk file have the following content:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_PACKAGE_DIR := $(LOCAL_PATH)/include
LOCAL_MODULE := iqindex
LOCAL_C_INCLUDES := \
$(LOCAL_PATH) \
$(OPENCV_PACKAGE_DIR)
LOCAL_SRC_FILES := \
main.cpp
LOCAL_SHARED_LIBRARIES := iqindex
LOCAL_LDLIBS := -llog -lz
include $(BUILD_SHARED_LIBRARY)
I do not have enough experience with jni/ndk stuff and my questions are:
To compile a .cpp file that needs another header files is enough to compile it with ndk-build command and it will be all done ?
What is wrong in my attempt to compile it ? And what is wrong in Android.mk ?
EDIT: The console error is the following:
C:\MyName\My Project App>ndk-build
C:/MyName/android-ndk-r8e/build/core/add-application.mk:128: Android NDK: WARNING: APP_PLATFORM android-14 is larger than android:minSdkVersion 8 in ./AndroidManifest.xml
SharedLibrary : libiqindex.so
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o:(.ARM.extab.text.unlikely._ZL6jthrowP7_JNIEnv+0x2c): error: undefined reference to 'typeinfo for cv::Exception'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function cv::Mat::Mat(cv::Mat const&):jni/include/opencv2/core/mat.hpp:125: error: undefined reference to 'cv::Mat::copySize(cv::Mat const&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function cv::Mat::release():jni/include/opencv2/core/mat.hpp:364: error: undefined reference to 'cv::Mat::deallocate()'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function cv::Mat::~Mat():jni/include/opencv2/core/mat.hpp:278: error: undefined reference to 'cv::fastFree(void*)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Mat_submat_1n:jni/include/opencv2/core/mat.hpp:376: error: undefined reference to 'cv::Mat::Mat(cv::Mat const&, cv::Rect_<int> const&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Mat_resize_1n:jni/main.cpp:111: error: undefined reference to 'cv::_InputArray::_InputArray(cv::Mat const&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Mat_resize_1n:jni/main.cpp:111: error: undefined reference to 'cv::_OutputArray::_OutputArray(cv::Mat&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Mat_resize_1n:jni/main.cpp:111: error: undefined reference to 'cv::resize(cv::_InputArray const&, cv::_OutputArray const&, cv::Size_<int>, double, double, int)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Utils_rotateData:jni/main.cpp:124: error: undefined reference to'cv::_InputArray::_InputArray(cv::Mat const&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Utils_rotateData:jni/main.cpp:124: error: undefined reference to'cv::_OutputArray::_OutputArray(cv::Mat&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Utils_rotateData:jni/main.cpp:124: error: undefined reference to'cv::flip(cv::_InputArray const&, cv::_OutputArray const&, int)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_Utils_rotateData:jni/main.cpp:125: error: undefined reference to'cv::Mat::t() const'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_IQLocal_nativeCreate:jni/main.cpp:139: error: undefined reference to 'get_instance()'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_IQLocal_load:jni/main.cpp:156: error: undefined reference to 'IQIndex::load(std::string, std::string)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_IQLocal_match:jni/main.cpp:171: error: undefined reference to 'IQIndex::match(cv::Mat&)'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_IQLocal_train:jni/main.cpp:182: error: undefined reference to 'IQIndex::train()'
C:/MyName/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.exe: ./obj/local/armeabi-v7a/objs/iqindex/main.o: in function Java_project_name_zxing_IQLocal_compute:jni/main.cpp:198: error: undefined reference to 'IQIndex::compute(cv::Mat const&, char const*, char const*)'
collect2: ld returned 1 exit status
make: *** [obj/local/armeabi-v7a/libiqindex.so] Error 1
SECOND EDIT: Now the Android.mk looks like this:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
# OpenCV
OPENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
include C:/Emil/downloads/OpenCV-2.4.6-android-sdk-r2/OpenCV-2.4.6-android-sdk/sdk /native/jni/OpenCV.mk
LOCAL_MODULE := iqindex
LOCAL_SRC_FILES := \
main.cpp
LOCAL_C_INCLUDES := \
$(LOCAL_PATH)/iqindex.h
LOCAL_LDLIBS := -llog -lz
include $(BUILD_SHARED_LIBRARY)

I suppose that you forgot to add OpenCV libriries to your project. So linker can't find OpenCV related functions.
From OpenCV documentation:
If your application project doesn’t have a JNI part, just copy the
corresponding OpenCV native libs from
/sdk/native/libs/ to your
project directory to folder libs/.
In case of the application project with a JNI part, instead of manual
libraries copying you need to modify your Android.mk file: add the
following two code lines after the "include $(CLEAR_VARS)" and before
"include path_to_OpenCV-2.4.6-android-sdk/sdk/native/jni/OpenCV.mk
OPENCV_CAMERA_MODULES:=on OPENCV_INSTALL_MODULES:=on
So you should have following lines in your Android.mk:
include $(CLEAR_VARS)
# OpenCV
OPENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
include ../../sdk/native/jni/OpenCV.mk

This is late, but in response to :
Now I have another problem: I have in the jni folder a header file named iqindex.h . The cpp file includes it, but now I have "undefined reference to" iqindex.h when I try to build. I tried the LOCAL_C_INCLUDES command in Android.mk which pointed to the header file, but then it doesn't see openCV anymore at compile time. How do I include this header to make the files to compile ?
The problem probably is that you used LOCAL_C_INCLUDES :=/foo/bar
Try LOCAL_C_INCLUDES +=/foo/bar.
You should add the include directory, not overwrite the existing includes.

cocos2dx eclipse: Various "error: undefined reference to "

I'm tryng to port an iOS game to Android platform with cocos2dx 2.0.4.
The core of the game is written in c++ and we managed to run it on iOS, in fact the game is avaivable on the Apple Store.
I'm using NDK r8d and lastest SDK, but I'm encountering a lot of issues when trying to build.
My application.mk is like this:
APP_STL := stlport_shared
APP_CPPFLAGS := -frtti
NDK_TOOLCHAIN_VERSION=4.7
Android.mk:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
ifdef STLG
LOCAL_MODULE := stlport_stlg
else
LOCAL_MODULE := stlport
endif
LOCAL_CFLAGS += -D__ANDROID__ \
-isystem $(SYSROOT)/usr/include \
LOCAL_MODULE := game_shared
LOCAL_MODULE_FILENAME := libgame
LOCAL_CPPFLAGS += -fexceptions
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../Classes
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../Classes $(LOCAL_PATH)/../../../../Box2D $(LOCAL_PATH)/../../../../cocos2dx $(LOCAL_PATH)/../../../../
LOCAL_WHOLE_STATIC_LIBRARIES := cocos2dx_static cocosdenshion_static cocos_extension_static
include $(BUILD_SHARED_LIBRARY)
$(call import-module,CocosDenshion/android) \
$(call import-module,cocos2dx) \
$(call import-module,extensions)
Here's the console log (only errors displayed):
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_alloc.h:158: error: undefined reference to 'std::__node_alloc::_M_allocate(unsigned int&)'
make: Leaving directory `/Users/arianna/android/cocos2d-2.0-x-2.0.4/grannnnnnny/proj.android'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_alloc.h:161: error: undefined reference to 'std::__node_alloc::_M_deallocate(void*, unsigned int)'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_string.c:600: error: undefined reference to 'std::__stl_throw_length_error(char const*)'
/Users/arianna/android/cocos2d-2.0-x-2.0.4/grannnnnnny/proj.android/../../cocos2dx/actions/CCActionInterval.cpp:386: error: undefined reference to '__dynamic_cast'
/Users/arianna/android/cocos2d-2.0-x-2.0.4/grannnnnnny/proj.android/../../cocos2dx/actions/CCActionInterval.cpp:1783: error: undefined reference to '__dynamic_cast'
/Users/arianna/android/cocos2d-2.0-x-2.0.4/grannnnnnny/proj.android/../../cocos2dx/actions/CCActionInterval.cpp:1838: error: undefined reference to '__dynamic_cast'
/Users/arianna/android/cocos2d-2.0-x-2.0.4/grannnnnnny/proj.android/../../cocos2dx/actions/CCActionInterval.cpp:1906: error: undefined reference to '__dynamic_cast'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_vector.c:41: error: undefined reference to 'std::__stl_throw_length_error(char const*)'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_vector.c:45: error: undefined reference to 'std::__stl_throw_out_of_range(char const*)'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_string.c:604: error: undefined reference to 'std::__stl_throw_out_of_range(char const*)'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_vector.c:41: error: undefined reference to 'std::__stl_throw_length_error(char const*)'
./obj/local/armeabi/libcocos2d.a(CCDirector.o):CCDirector.cpp:function typeinfo for cocos2d::CCDirector: error: undefined reference to 'vtable for __cxxabiv1::__vmi_class_type_info'
/Users/arianna/android/android-ndk-r8d/sources/cxx-stl/stlport/stlport/stl/_vector.c:41: error: undefined reference to 'std::__stl_throw_length_error(char const*)'
collect2: error: ld returned 1 exit status
make: *** [obj/local/armeabi/libgame.so] Error 1
Any help much appreciated, thanks...

Try this in application.mk APP_STL := gnustl_static?

You get the above undefined reference error because you have not added the necessary libraries in Android.mk files. It looks something like this
LOCAL_LDLIBS := -L$(call host-path, $(LOCAL_PATH)/../../libs/$(TARGET_ARCH_ABI)) \
-lcocos2d -lGLESv1_CM -llog -lgame_logic
I am stuck with this issue even after adding the libraries. Its got something to do with setting path but I dont know how to..
If you solve this let me know

NDK-build causes error

I had been trying to solve this issue for quiet a long time,I am using a library called FreeImage and when tries to do the NDK build the code results in following error
My source can be downloaded from
copy.html">http://www.4shared.com/zip/1C3vpLI7/android-imagefilter-ndk_copy.html
Thanking you in advance for your valuable efforts-
tribute.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfChromaticitiesAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfChromaticitiesAttribute.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
/home/flock/ANDROID/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: Dwarf Error: mangled line number section.
./obj/local/armeabi/libfreeimage.a(ImfCompressionAttribute.o): In function `_GLOBAL__sub_I_ImfCompressionAttribute.cpp':
ImfCompressionAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfCompressionAttribute.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfCompressionAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfCompressionAttribute.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o): In function `Imf::newCompressor(Imf::Compression, unsigned int, Imf::Header const&)':
ImfCompressor.cpp:(.text._ZN3Imf13newCompressorENS_11CompressionEjRKNS_6HeaderE+0x10): undefined reference to `__gnu_thumb1_case_uqi'
ImfCompressor.cpp:(.text._ZN3Imf13newCompressorENS_11CompressionEjRKNS_6HeaderE+0xb8): undefined reference to `__cxa_end_cleanup'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o):(.ARM.extab.text._ZN3Imf13newCompressorENS_11CompressionEjRKNS_6HeaderE+0x0): undefined reference to `__gxx_personality_v0'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o): In function `Imf::newTileCompressor(Imf::Compression, unsigned int, unsigned int, Imf::Header const&)':
ImfCompressor.cpp:(.text._ZN3Imf17newTileCompressorENS_11CompressionEjjRKNS_6HeaderE+0x12): undefined reference to `__gnu_thumb1_case_uqi'
ImfCompressor.cpp:(.text._ZN3Imf17newTileCompressorENS_11CompressionEjjRKNS_6HeaderE+0x64): undefined reference to `__cxa_allocate_exception'
ImfCompressor.cpp:(.text._ZN3Imf17newTileCompressorENS_11CompressionEjjRKNS_6HeaderE+0x8a): undefined reference to `__cxa_throw'
ImfCompressor.cpp:(.text._ZN3Imf17newTileCompressorENS_11CompressionEjjRKNS_6HeaderE+0xe4): undefined reference to `__cxa_end_cleanup'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o):(.ARM.extab.text._ZN3Imf17newTileCompressorENS_11CompressionEjjRKNS_6HeaderE+0x0): undefined reference to `__gxx_personality_v0'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o): In function `_GLOBAL__sub_I_ImfCompressor.cpp':
ImfCompressor.cpp:(.text.startup._GLOBAL__sub_I_ImfCompressor.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfCompressor.cpp:(.text.startup._GLOBAL__sub_I_ImfCompressor.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
./obj/local/armeabi/libfreeimage.a(ImfCompressor.o):(.data.rel.ro+0x0): undefined reference to `vtable for __cxxabiv1::__class_type_info'
/home/flock/ANDROID/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: Dwarf Error: mangled line number section.
./obj/local/armeabi/libfreeimage.a(ImfConvert.o): In function `_GLOBAL__sub_I_ImfConvert.cpp':
ImfConvert.cpp:(.text.startup._GLOBAL__sub_I_ImfConvert.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfConvert.cpp:(.text.startup._GLOBAL__sub_I_ImfConvert.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
/home/flock/ANDROID/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: Dwarf Error: mangled line number section.
./obj/local/armeabi/libfreeimage.a(ImfDoubleAttribute.o): In function `_GLOBAL__sub_I_ImfDoubleAttribute.cpp':
ImfDoubleAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfDoubleAttribute.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfDoubleAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfDoubleAttribute.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
/home/flock/ANDROID/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.4.3/../../../../arm-linux-androideabi/bin/ld: Dwarf Error: mangled line number section.
./obj/local/armeabi/libfreeimage.a(ImfEnvmapAttribute.o): In function `_GLOBAL__sub_I_ImfEnvmapAttribute.cpp':
ImfEnvmapAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfEnvmapAttribute.cpp+0x8): undefined reference to `std::ios_base::Init::Init()'
ImfEnvmapAttribute.cpp:(.text.startup._GLOBAL__sub_I_ImfEnvmapAttribute.cpp+0x24): undefined reference to `std::ios_base::Init::~Init()'
My Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= freeimage
LOCAL_SRC_FILES :=libfreeimage.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= imageprocessing
LOCAL_SRC_FILES:= imageprocessing.c
LOCAL_STATIC_LIBRARIES = freeimage
LOCAL_EXPORT_C_INCLUDES := freeimage.h
LOCAL_LDLIBS:= -lm -llog -ljnigraphics
include $(BUILD_SHARED_LIBRARY)
My application.mk
APP_OPTIM := release
APP_PLATFORM := android-8
APP_STL := gnustl_static
APP_CPPFLAGS += -frtti
APP_CPPFLAGS += -fexceptions
APP_CPPFLAGS += -DANDROID
APP_ABI:= armeabi

I think you are seeing a bug in gcc/NDK that manifests itself slightly differently on Linux, Cygwin, and Windows (non Cygwin).
Here's what I did to fix it (works for Linux and for one of my developers who is blind and has to use Cygwin)...
- Remove the line that says, APP_STL := gnustl_static from your Application.mk (it's broken in the NDK; moreover, it's broken slightly differently on Linux Cygwin, Windows)
- add three lines to Andriod.mk that say,
LOCAL_C_INCLUDES := $(NDK_ROOT)/sources/cxx-stl/gnu-libstdc++/4.6/include
LOCAL_C_INCLUDES += $(NDK_ROOT)/sources/cxx-stl/gnu-libstdc++/4.6/libs/armeabi-v7a/include
$(LOCAL_LDLIBS) += $(NDK_ROOT)/sources/cxx-stl/gnu-libstdc++/4.6/libs/armeabi-v7a/libgnustl_static.a
^^^This line must be near the end of your $(LOCAL_LDLIBS)
The forgoing will accomplish what having, "APP_STL := gnustl_static" in your Application.mk was supposed to.

Failing to link against libjpeg.so in jni/ndk shared library

Heya,
I'm having trouble building an ndk/jni shared library which I have developed. I am hoping to reuse the libjpeg which ships with the platform (/system/lib/libjpeg.so) however I cannot get it to link. When I build my shared library I get...
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:94: undefined reference to `jpeg_std_error(jpeg_error_mgr*)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:96: undefined reference to `jpeg_CreateDecompress(jpeg_decompress_struct*, int, unsigned int)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:98: undefined reference to `jpeg_stdio_src(jpeg_decompress_struct*, __sFILE*)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:100: undefined reference to `jpeg_read_header(jpeg_decompress_struct*, int)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:102: undefined reference to `jpeg_start_decompress(jpeg_decompress_struct*)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:124: undefined reference to `jpeg_read_scanlines(jpeg_decompress_struct*, unsigned char**, unsigned int)'
/home/blink/workspace_android2/HackBitmapJNI/jni/jnijpeg/JNIBmp.cpp:130: undefined reference to `jpeg_destroy_decompress(jpeg_decompress_struct*)'
collect2: ld returned 1 exit status
make: *** [/home/blink/workspace_android2/HackBitmapJNI/obj/local/armeabi/libjnijpeg.so] Error 1*
Which is essentially every symbol I would need to resolve out of libjpeg.so at runtime...
I have copied libjpeg.so off of my emulator and into my project directory under 'lib'. When I run 'arm-eabi-readelf -s' on that copy of libjpeg.so I can see all of the above symbols defined (I can't see method signatures.. just names.. is there a way to dump signatures/namespaces??)
My Android.mk is as follows...
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_C_INCLUDES := /opt/android_src/dalvik/libnativehelper/include/nativehelper \
/opt/android_src/frameworks/base/include \
/opt/android_src/system/core/include \
/opt/android_src/dalvik/libnativehelper/include \
/opt/android_src/external/stlport/stlport \
/opt/android_src/external/jpeg \
/opt/android_src/bionic
LOCAL_LDFLAGS += -Llib
LOCAL_MODULE := jnijpeg
LOCAL_SRC_FILES := JNIBmp.cpp
LOCAL_LDLIBS := -lm -llog -ljpeg -landroid_runtime
include $(BUILD_SHARED_LIBRARY)
Thank you much for any help!

Try to use #include in this form:
extern "C" {
#include "jpeglib.h"
}
It worked for me.
Good luck!

I was able to link against -ljpeg using the following:
LOCAL_LDLIBS := -L$(MYDROID)/out/target/product/generic/system/lib/ -ljpeg