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  • 依赖于另一个模块的Android NDK模块

依赖于另一个模块的Android NDK模块

android android-ndk dependencies

依赖于另一个模块的Android NDK模块,android,android-ndk,java-native-interface,dependencies,android.mk,Android,Android Ndk,Java Native Interface,Dependencies,Android.mk,我有一个使用androidndk编写的android项目。在这个项目中，我使用了两个预构建的共享库（GpkgSDK和spatialite），并构建了另外两个共享库（wfshellers和com_example_gpkgviewer_jni_WKTConverter）。与应用程序的Java级别交互的唯一库是com_example_gpkgviewer_jni_WKTConverter库 这些库之间的依赖关系如下所示： LOCAL_PATH := $(call my-dir) include $(C

我有一个使用androidndk编写的android项目。在这个项目中，我使用了两个预构建的共享库（GpkgSDK和spatialite），并构建了另外两个共享库（wfshellers和com_example_gpkgviewer_jni_WKTConverter）。与应用程序的Java级别交互的唯一库是com_example_gpkgviewer_jni_WKTConverter库

这些库之间的依赖关系如下所示：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_SHARED_LIBRARIES := GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

[armeabi] SharedLibrary  : libcom_example_gpkgviewer_jni_WKTConverter.so
jni/com_example_gpkgviewer_jni_WKTConverter.cpp:59: error: undefined reference
o 'WKBGenericGeometry::readInt32(unsigned char, unsigned char*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
make.exe: *** [obj/local/armeabi/libcom_example_gpkgviewer_jni_WKTConverter.so]
Error 1

*id_arg = WKBGenericGeometry::readInt32(byte_order, &(bytes[4]), length - 4);

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libWFSHelpers.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
include $(BUILD_SHARED_LIBRARY)
  • WFShellers依赖于GpkgSDK和spatialite
  • com_示例_gpkgviewer_jni_WKTConverter依赖于WFShellers
我遇到的问题是，当我尝试运行ndk build时，在尝试构建com_example_gpkgviewer_jni_WKTConverter库时，我得到了大量未定义的引用。其他库已成功构建。通常，我解决这些未定义引用的方法是在我的com_示例_gpkgviewer_jni_WKTConverter模块定义中包含以下内容：

LOCAL_SHARED_LIBRARY := WFSHelpers
我不确定是否还需要包括WFShellers所依赖的库，例如：

LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
我也尝试了不同的顺序，但似乎无法解决我的问题：

  • 本地共享库：=GpkgSDK spatialite wfshellers
My Application.mk包含在下面：

NDK_TOOLCHAIN_VERSION := 4.8
# APP_STL := stlport_shared  --> does not seem to contain C++11 features
APP_STL := gnustl_shared

# Enable c++11 extentions in source code
APP_CPPFLAGS += -std=c++11
APP_CPPFLAGS += -frtti 
APP_CPPFLAGS += -fexceptions

APP_MODULES := GpkgSDK spatialite WFSHelpers com_example_gpkgviewer_jni_WKTConverter

APP_ABI := armeabi armeabi-v7a
My Android.mk如下所示：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_SHARED_LIBRARIES := GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

[armeabi] SharedLibrary  : libcom_example_gpkgviewer_jni_WKTConverter.so
jni/com_example_gpkgviewer_jni_WKTConverter.cpp:59: error: undefined reference
o 'WKBGenericGeometry::readInt32(unsigned char, unsigned char*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
make.exe: *** [obj/local/armeabi/libcom_example_gpkgviewer_jni_WKTConverter.so]
Error 1

*id_arg = WKBGenericGeometry::readInt32(byte_order, &(bytes[4]), length - 4);

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libWFSHelpers.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
include $(BUILD_SHARED_LIBRARY)
我得到的未定义引用错误示例如下所示：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_SHARED_LIBRARIES := GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

[armeabi] SharedLibrary  : libcom_example_gpkgviewer_jni_WKTConverter.so
jni/com_example_gpkgviewer_jni_WKTConverter.cpp:59: error: undefined reference
o 'WKBGenericGeometry::readInt32(unsigned char, unsigned char*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
make.exe: *** [obj/local/armeabi/libcom_example_gpkgviewer_jni_WKTConverter.so]
Error 1

*id_arg = WKBGenericGeometry::readInt32(byte_order, &(bytes[4]), length - 4);

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libWFSHelpers.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
include $(BUILD_SHARED_LIBRARY)
com_example_gpkgviewer_jni_WKTConverter.cpp中导致此错误的代码行如下所示：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_SHARED_LIBRARIES := GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

[armeabi] SharedLibrary  : libcom_example_gpkgviewer_jni_WKTConverter.so
jni/com_example_gpkgviewer_jni_WKTConverter.cpp:59: error: undefined reference
o 'WKBGenericGeometry::readInt32(unsigned char, unsigned char*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
make.exe: *** [obj/local/armeabi/libcom_example_gpkgviewer_jni_WKTConverter.so]
Error 1

*id_arg = WKBGenericGeometry::readInt32(byte_order, &(bytes[4]), length - 4);

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libWFSHelpers.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
include $(BUILD_SHARED_LIBRARY)
关于如何解决依赖关系的任何建议

经过多年的尝试，我终于能够让它工作了。虽然，我不太清楚两者之间的区别是什么，所以欢迎任何能够阐明这一点的人这样做。我的问题是我依赖于其他库。文件规定如下：

本地共享库
此模块的共享库列表 模块在运行时依赖于。这在连接时是必要的，并且 在生成的文件中嵌入相应的信息

本地\u LDLIBS
构建共享库或可执行文件时要使用的其他链接器标志的列表。这有助于通过测试 前缀为'-l'的特定系统库的名称。例如 下面将告诉链接器生成链接到的模块 /system/lib/libz.so在加载时：

LOCAL_LDLIBS := -lz
请参阅STABLE-API以获取可与此NDK版本链接的公开系统库列表。
注意：对于静态库，这被忽略，如果 您可以在这样的模块中定义它

因此，在我的Android.mk文件中，我必须使用本地_ldlib而不是本地_共享_库来表示依赖关系

我的新Android.mk如下所示：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_SHARED_LIBRARIES := GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_SHARED_LIBRARY := WFSHelpers GpkgSDK spatialite
include $(BUILD_SHARED_LIBRARY)

[armeabi] SharedLibrary  : libcom_example_gpkgviewer_jni_WKTConverter.so
jni/com_example_gpkgviewer_jni_WKTConverter.cpp:59: error: undefined reference
o 'WKBGenericGeometry::readInt32(unsigned char, unsigned char*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
make.exe: *** [obj/local/armeabi/libcom_example_gpkgviewer_jni_WKTConverter.so]
Error 1

*id_arg = WKBGenericGeometry::readInt32(byte_order, &(bytes[4]), length - 4);

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := GpkgSDK
LOCAL_SRC_FILES := libMP.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH)/include \
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := spatialite
LOCAL_SRC_FILES := spatialamal/prebuilt/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_EXPORT_C_INCLUDES :=     spatialamal/headers/spatialite \
                            spatialamal/headers
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := WFSHelpers
LOCAL_SRC_FILES := \
GPKGReader/Debug.h \
GPKGReader/DLLExport.h \
GPKGReader/DBQueryResult.cpp \
GPKGReader/GeoPackageDB.cpp \
GPKGReader/GPKGReader.cpp \
GPKGReader/order32.h \
GPKGReader/SpecDefinitions.h \
GPKGReader/WKBGenericGeometry.cpp \
GPKGReader/WKBLineString.cpp \
GPKGReader/WKBMultiLineString.cpp \
GPKGReader/WKBMultiPolygon.cpp \
GPKGReader/WKBPoint.cpp \
GPKGReader/WKBPolygon.cpp \
GPKGDataLayer/GPKGDataLayer.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libspatialite.so
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE    := com_example_gpkgviewer_jni_WKTConverter
LOCAL_SRC_FILES := com_example_gpkgviewer_jni_WKTConverter.cpp
LOCAL_LDLIBS := libs/$(TARGET_ARCH_ABI)/libWFSHelpers.so
LOCAL_LDLIBS += libs/$(TARGET_ARCH_ABI)/libGpkgSDK.so
include $(BUILD_SHARED_LIBRARY)
我将暂时不回答这个问题，因为我不完全确定本地\u ldlib和本地\u共享\u库之间的区别。如果有人能给我一个解释，请解释。如果没有，我会在给予一段时间后，将这个答案标记为接受。谢谢

您可能想阅读$NDK/build/core/build-binary.mk第一页上的注释，这说明了这一点——我的快速阅读是，只有系统库应该在本地目录中列出_LDLIBS@ChrisStratton：谢谢您的回复，我们将浏览上述文件。