CODEWITHSUNDEEP
androidandroid-ndkandroid.mk
Donato Azevedo
Donato Azevedo

Reputation: 1418

Android.mk to include prebuilt library

I'm struggling to get a module to compile on Android. It references an already existing shared library -- that I only have the .so and .h files.

My current Android.mk looks like this:

LOCAL_PATH:= $(call my-dir)
EXEC_ARCH := armeabi-v7a    

local_vendorlib_c_includes := $(LOCAL_PATH)/VENDORLIB/include

# VENDORLIBWrapper library
include $(CLEAR_VARS)

LOCAL_MODULE_CLASS := SHARED_LIBRARIES
LOCAL_SRC_FILES := mylib.cpp
LOCAL_MODULE:= libvendorwrapper
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/soundfx
LOCAL_LDLIBS := -L$(LOCAL_PATH)/DPS/$(EXEC_ARCH)/
LOCAL_C_INCLUDES := \
    $(call include-path-for, graphics corecg) \
    $(call include-path-for, audio-effects) \
    $(local_dps_c_includes)

LOCAL_CPPFLAGS += -O2 -Wno-unused-parameter
#--verbose

LOCAL_SHARED_LIBRARIES := \
    libcutils \
    libdl \
    libVendorLib
#LOCAL_PREBUILT_LIBS += libVendorLib
LOCAL_REQUIRED_MODULES := libVendorLib

include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE_CLASS := SHARED_LIBRARIES
LOCAL_MODULE := libVendorLib
LOCAL_SRC_FILES := $(LOCAL_PATH)/VendorLib/$(EXEC_ARCH)/libVendorLib.so
LOCAL_MODULE_TAGS := debug
LOCAL_EXPORT_C_INCLUDES := $(local_vendorlib_c_includes)
include $(PREBUILT_SHARED_LIBRARY)


include $(call all-makefiles-under,$(LOCAL_PATH))

And I am getting the error below:

> ninja: error:
> 'out/target/product/generic/obj/lib/libVendorLib.so.toc', needed by
> 'out/target/product/generic/obj/SHARED_LIBRARIES/libvendorwrapper_intermediates/LINKED/libvendorwrapper.so', missing and no known rule to make it make: *** [ninja_wrapper] Error 1
> make: Leaving directory `/home/donatoaz/WORKING_DIRECTORY'
> 
> #### make failed to build some targets (23 seconds) ####

Upvotes: 3

Views: 7222

Answers (1)

Donato Azevedo
Donato Azevedo

Reputation: 1418

I was able to finally build it by making the following changes

I was able to build it making the following changes:

include $(CLEAR_VARS)
LOCAL_MODULE_CLASS := SHARED_LIBRARIES
LOCAL_MODULE := libVendorLib
LOCAL_SRC_FILES := libVendorLib.so # <== Moved the prebuilt lib to root / -- oddly enough, when it was in a subfolder, make would not find it.
LOCAL_MODULE_TAGS := debug
LOCAL_EXPORT_C_INCLUDES := $(local_vendorlib_c_includes)
include $(BUILD_PREBUILT) # <== changed this from PREBUILT_SHARED_LIBRARY

Now I get:

make completed successfully (21 seconds)

Upvotes: 6

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