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### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to a version built with opencl that I created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I've attached the Android.mk, but below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to a version opencv3 built with opencl that I created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I've attached the Android.mk, but below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to opencv3 built with opencl created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I've attached the Android.mk, I'd attach the Android.mk but below this forum only allows image attachments. Below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to opencv3 built with opencl created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I'd attach the Android.mk but this forum only allows image attachments. Below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

This is the entire Android.mk

LOCAL_PATH := $(call my-dir) include$(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3

LOCAL_EXPORT_C_INCLUDE_DIRS := \ $(PREBUILT_INCLUDE_PATH) \$(PREBUILT_INCLUDE_PATH)/modules/core/include \ $(PREBUILT_INCLUDE_PATH)/opencv2 \$(PREBUILT_INCLUDE_PATH)/modules/hal/include

LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES := $(PREBUILT_PATH)/libopencv_core.a include$(PREBUILT_STATIC_LIBRARY)

include $(CLEAR_VARS) LOCAL_MODULE := libNV LOCAL_MODULE_TAGS := optional LOCAL_VENDOR_MODULE := true LOCAL_C_INCLUDES := \ external/opencv3/include/opencv \ external/opencv3/include \ external/opencv3/modules/core/include \ external/opencv3/modules/hal/include \ external/opencv3/modules/imgproc/include \ external/opencv3/modules/photo/include \ external/opencv3/modules/video/include \ external/opencv3/modules/objdetect/include \ external/opencv3/modules/features2d/include \ external/opencv3/modules/flann/include \ external/opencv3/modules/calib3d/include \ external/opencv3/modules/imgcodecs/include \ external/opencv3/modules/videoio/include \ external/opencv3/modules/highgui/include \ external/opencv3/modules/ml/include \ external/opencv3/modules/shape/include \ external/opencv3/modules/stitching/include \ external/opencv3/modules/superres/include \ external/opencv3/modules/videostab/include \ external/jsoncpp/include \ device/my_app/apps/external/OpenCL \$(LOCAL_PATH)/include \ system/core/include

LOCAL_EXPORT_C_INCLUDE_DIRS := \ $(LOCAL_PATH)/include LOCAL_SRC_FILES := \ src/NVOpencv.cpp \ src/NVProcAngles.cpp \ src/NVUtils.cpp \ src/ILogger.cpp LOCAL_CPPFLAGS := \ -std=c++14 \ -fPIC \ -fsigned-char \ -frtti \ -fexceptions \ -Wno-non-virtual-dtor \ -Wno-unused-parameter \ -Wno-write-strings LOCAL_STATIC_LIBRARIES := \ libopencv_hal \ libopencv_core_prebuilt LOCAL_SHARED_LIBRARIES := \ libc++ \ libopencv_imgproc \ #libopencv_core \ libdl \ liblog \ libion \ libOpenCL LOCAL_TIDY = true include$(BUILD_STATIC_LIBRARY)

### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to opencv3 built with opencl created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I'd attach the Android.mk but this forum only allows image attachments. Below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

This is the entire Android.mk

LOCAL_PATH := $(call my-dir) my-dir) include$(CLEAR_VARS)
PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a
PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 /hdd/NEO8/external/opencv3

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(PREBUILT_INCLUDE_PATH) \$(PREBUILT_INCLUDE_PATH)/modules/core/include \
$(PREBUILT_INCLUDE_PATH)/opencv2 \$(PREBUILT_INCLUDE_PATH)/modules/hal/include $(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a $(PREBUILT_PATH)/libopencv_core.a include$(PREBUILT_STATIC_LIBRARY) $(PREBUILT_STATIC_LIBRARY) include$(CLEAR_VARS) $(CLEAR_VARS) LOCAL_MODULE := libNV LOCAL_MODULE_TAGS := optional LOCAL_VENDOR_MODULE := true true LOCAL_C_INCLUDES := \ external/opencv3/include/opencv \ external/opencv3/include \ external/opencv3/modules/core/include \ external/opencv3/modules/hal/include \ external/opencv3/modules/imgproc/include \ external/opencv3/modules/photo/include \ external/opencv3/modules/video/include \ external/opencv3/modules/objdetect/include \ external/opencv3/modules/features2d/include \ external/opencv3/modules/flann/include \ external/opencv3/modules/calib3d/include \ external/opencv3/modules/imgcodecs/include \ external/opencv3/modules/videoio/include \ external/opencv3/modules/highgui/include \ external/opencv3/modules/ml/include \ external/opencv3/modules/shape/include \ external/opencv3/modules/stitching/include \ external/opencv3/modules/superres/include \ external/opencv3/modules/videostab/include \ external/jsoncpp/include \ device/my_app/apps/external/OpenCL \$(LOCAL_PATH)/include \
system/core/include system/core/include

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(LOCAL_PATH)/include$(LOCAL_PATH)/include

LOCAL_SRC_FILES := \
src/NVOpencv.cpp \
src/NVProcAngles.cpp \
src/NVUtils.cpp \
src/ILogger.cpp src/ILogger.cpp

LOCAL_CPPFLAGS := \
-std=c++14 \
-fPIC \
-fsigned-char \
-frtti \
-fexceptions \
-Wno-non-virtual-dtor \
-Wno-unused-parameter \
-Wno-write-strings -Wno-write-strings

LOCAL_STATIC_LIBRARIES := \
libopencv_hal \
libopencv_core_prebuilt libopencv_core_prebuilt

LOCAL_SHARED_LIBRARIES := \
libc++ \
libopencv_imgproc \
#libopencv_core \
libdl \
liblog \
libion \
libOpenCL libOpenCL

LOCAL_TIDY = true true

include $(BUILD_STATIC_LIBRARY)$(BUILD_STATIC_LIBRARY)


### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to opencv3 built with opencl created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I'd attach the Android.mk but this forum only allows image attachments. Below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to the Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

This is the entire Android.mk

LOCAL_PATH := $(call my-dir) include$(CLEAR_VARS)
PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a
PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(PREBUILT_INCLUDE_PATH) \$(PREBUILT_INCLUDE_PATH)/modules/core/include \
$(PREBUILT_INCLUDE_PATH)/opencv2 \$(PREBUILT_INCLUDE_PATH)/modules/hal/include

LOCAL_MODULE            := libopencv_core_prebuilt
LOCAL_SRC_FILES := $(PREBUILT_PATH)/libopencv_core.a include$(PREBUILT_STATIC_LIBRARY)

include $(CLEAR_VARS) LOCAL_MODULE := libNV LOCAL_MODULE_TAGS := optional LOCAL_VENDOR_MODULE := true LOCAL_C_INCLUDES := \ external/opencv3/include/opencv \ external/opencv3/include \ external/opencv3/modules/core/include \ external/opencv3/modules/hal/include \ external/opencv3/modules/imgproc/include \ external/opencv3/modules/photo/include \ external/opencv3/modules/video/include \ external/opencv3/modules/objdetect/include \ external/opencv3/modules/features2d/include \ external/opencv3/modules/flann/include \ external/opencv3/modules/calib3d/include \ external/opencv3/modules/imgcodecs/include \ external/opencv3/modules/videoio/include \ external/opencv3/modules/highgui/include \ external/opencv3/modules/ml/include \ external/opencv3/modules/shape/include \ external/opencv3/modules/stitching/include \ external/opencv3/modules/superres/include \ external/opencv3/modules/videostab/include \ external/jsoncpp/include \ device/my_app/apps/external/OpenCL \$(LOCAL_PATH)/include \
system/core/include

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(LOCAL_PATH)/include LOCAL_SRC_FILES := \ src/NVOpencv.cpp \ src/NVProcAngles.cpp \ src/NVUtils.cpp \ src/ILogger.cpp LOCAL_CPPFLAGS := \ -std=c++14 \ -fPIC \ -fsigned-char \ -frtti \ -fexceptions \ -Wno-non-virtual-dtor \ -Wno-unused-parameter \ -Wno-write-strings LOCAL_STATIC_LIBRARIES := \ libopencv_hal \ libopencv_core_prebuilt LOCAL_SHARED_LIBRARIES := \ libc++ \ libopencv_imgproc \ #libopencv_core \ libdl \ liblog \ libion \ libOpenCL LOCAL_TIDY = true include$(BUILD_STATIC_LIBRARY)


### Linking prebuilt opencv static library in Android.mk

Hi I am trying to link prebuilt external/opencv3 libopencv_core.a in the Android tree to my project that's also in the tree. I get the following error

ninja: error: 'out/target/product/neo/obj/STATIC_LIBRARIES/libopencv_core_prebuilt_intermediates/export_includes', needed by 'out/target/product/neo/obj/STATIC_LIBRARIES/libNV_intermediates/import_includes', missing and no known rule to make it


I am able to link to libopencv_core when Android builds it, but I need to link to opencv3 built with opencl created using the following make.

cd /hdd/NEO8/external/opencv3/platforms
./scripts/cmake_android_arm.sh -DANDROID_ABI=arm64-v8a -DANDROID_NATIVE_API_LEVEL=android-23 -DWITH_OPENCL=yes -DWITH_CUDA=no
cd build_android_arm
make -j8
OpenCV static libraries are created in the lib/arm64-v8a directory.


My project is all native code (c++) with no jni or Java.

The tree structure is:

hdd/NEO8/
my_android_tree_root/
external/opencv3  (this is where I build the libopencv_core.a)
device/my_app  (this is where my Android.mk is)


I'd attach the Android.mk but this forum only allows image attachments. Below is how I'm adding the prebuilt to the Android.mk

include $(CLEAR_VARS) PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3 LOCAL_EXPORT_C_INCLUDE_DIRS := \$(PREBUILT_INCLUDE_PATH) \
$(PREBUILT_INCLUDE_PATH)/modules/core/include \$(PREBUILT_INCLUDE_PATH)/opencv2 \
$(PREBUILT_INCLUDE_PATH)/modules/hal/include LOCAL_MODULE := libopencv_core_prebuilt LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core.a
include $(PREBUILT_STATIC_LIBRARY)  The LOCAL_EXPORT_C_INCLUDE_DIRS is the same as what I use when I link to the Android built opencv3. I can tell that the Android build process is finding the libopencv_core.a file because when I change the static library name to something bogus, i.e. LOCAL_SRC_FILES :=$(PREBUILT_PATH)/libopencv_core_bogusName.a


the linker says it can't find libopencv_core_bogusName.a.

Is there a way to get more information out of the Android build info like a verbose=true setting? Any ideas on what I can try would be greatly appreciated.

This is the entire Android.mk

LOCAL_PATH := $(call my-dir) include$(CLEAR_VARS)
PREBUILT_PATH := /hdd/NEO8/external/opencv3/platforms/build_android_arm/lib/arm64-v8a
PREBUILT_INCLUDE_PATH := /hdd/NEO8/external/opencv3

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(PREBUILT_INCLUDE_PATH) \$(PREBUILT_INCLUDE_PATH)/modules/core/include \
$(PREBUILT_INCLUDE_PATH)/opencv2 \$(PREBUILT_INCLUDE_PATH)/modules/hal/include

LOCAL_MODULE            := libopencv_core_prebuilt
LOCAL_SRC_FILES := $(PREBUILT_PATH)/libopencv_core.a include$(PREBUILT_STATIC_LIBRARY)

include $(CLEAR_VARS) LOCAL_MODULE := libNV LOCAL_MODULE_TAGS := optional LOCAL_VENDOR_MODULE := true LOCAL_C_INCLUDES := \ external/opencv3/include/opencv \ external/opencv3/include \ external/opencv3/modules/core/include \ external/opencv3/modules/hal/include \ external/opencv3/modules/imgproc/include \ external/opencv3/modules/photo/include \ external/opencv3/modules/video/include \ external/opencv3/modules/objdetect/include \ external/opencv3/modules/features2d/include \ external/opencv3/modules/flann/include \ external/opencv3/modules/calib3d/include \ external/opencv3/modules/imgcodecs/include \ external/opencv3/modules/videoio/include \ external/opencv3/modules/highgui/include \ external/opencv3/modules/ml/include \ external/opencv3/modules/shape/include \ external/opencv3/modules/stitching/include \ external/opencv3/modules/superres/include \ external/opencv3/modules/videostab/include \ external/jsoncpp/include \ device/my_app/apps/external/OpenCL \$(LOCAL_PATH)/include \
system/core/include

LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(LOCAL_PATH)/include LOCAL_SRC_FILES := \ src/NVOpencv.cpp \ src/NVProcAngles.cpp \ src/NVUtils.cpp \ src/ILogger.cpp LOCAL_CPPFLAGS := \ -std=c++14 \ -fPIC \ -fsigned-char \ -frtti \ -fexceptions \ -Wno-non-virtual-dtor \ -Wno-unused-parameter \ -Wno-write-strings LOCAL_STATIC_LIBRARIES := \ libopencv_hal \ libopencv_core_prebuilt LOCAL_SHARED_LIBRARIES := \ libc++ \ libopencv_imgproc \ #libopencv_core \ libdl \ liblog \ libion \ libOpenCL LOCAL_TIDY = true include$(BUILD_STATIC_LIBRARY)