AOSP 7.1 failing to create a module with a prebuilt static library in system build.

[FlamurBerisha]

Hello everyone, thanks for helping.

I have an prebuilt  static library builted with ndk toolchain for cmake.  My lib is a simply a c++ class that says hello world on its constructor. 

Command which I invoke the cmake is : "cmake -DCMAKE_TOOLCHAIN_FILE=~/Android/Ndk/android-ndk-r19c/build/cmake/android.toolchain.cmake -DANDROID_ABI="arm64-v8a""

Than I created my module at external/new_module, there I putted the prebuilt_lib and the other src files that are linked to this lib. My Android.mk file looks like this.

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := libdump_android_static

LOCAL_MODULE_CLASS := STATIC_LIBRARIES

LOCAL_MODULE_SUFFIX := .a

LOCAL_SRC_FILE := lib/arm64-v8a/../dump_android/libdump_android.a

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include/../dump

LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include

include $(BUILD_PREBUILT)

When I execute the compile command for only this module "mmm ./external/new_module" it says that make completed successfully and also says " target Prebuilt: libdump_android_static (out/target/product/../obj/STATIC_LIBRARIES/libdump_android_static_intermediates/libdump_android_static.a"

Than I wanted to use this library in other sub-module which is builded inside the system, that sub-module inside my same Android.mk looks like:

include $(CLEAR_VARS)

LOCAL_MODULE := libdump

LOCAL_SRC_FILES := src/../dump/dump.cpp

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include

LOCAL_SHARED_LIBRARIES := liblog libopencv_core

LOCAL_STATIC_LIBRARIES := libdump_android_static

LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include

include $(BUILD_SHARED_LIBRARY)

When I execute the compile command for only this module "mmm ./external/new_module" it says: 

ninja: error: 'out/target/product/../obj_arm/STATIC_LIBRARIES/libdump_android_static_intermediates/export_includes', needed by 'out/target/product/../obj_arm/SHARED_LIBRARIES/libdump_intermediates/import_includes', missing and no known rule to make it.
I also tried with shared libraries but the same error appears!

[Dan Willemsen]

Use `mmma` or `m libdump` instead of `mmm`, at least once. I suspect that will fix it up. Note that to be correct, you need to specify LOCAL_SDK_VERSION := <version cmake used>, since you compiled with the NDK.

- Dan

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[FlamurBerisha]

Hello and thank you for your reply. I tried `mmma` and `m libdump` they still not compile with the same error, I added the LOCAL_SDK_VERSION to the libdump_android_static module and tried `m libdump_android_static` and it succeeds!

- Flamur

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[FlamurBerisha]

Do we have another solution for this!