Question

我正在尝试使用android NDK构建sqlite以使用sqlite3_create_function但是我没有获得规则来制作目标错误。 make: *** No rule to make target '/fts3-rank.c', needed by '.../obj/local/armeabi/objs/fts3-rank//fts3-rank.o'. Stop.此Android.mk文件基于此网站上的文件：http://www.roman10.net/how-to-compile-sqlite-for-android-using-ndk/

    #LOCAL_PATH is used to locate source files in the development tree.

    #the macro my-dir provided by the build system, indicates the path of the current   directory

    LOCAL_PATH := $(call my_dir)




    #####################################################################

    #            build sqlite3                                            #

    #####################################################################

    include $(CLEAR_VARS)

    LOCAL_C_INCLUDES := $(LOCAL_PATH)/sqlite-amalgamation-3071700

    LOCAL_MODULE := sqlite3

    LOCAL_SRC_FILES := $(LOCAL_PATH)/sqlite-amalgamation-3071700/sqlite3.c

    include $(BUILD_STATIC_LIBRARY)

    #include $(BUILD_SHARED_LIBRARY)





    #####################################################################

    #            build our code                    #

    #####################################################################

    include $(CLEAR_VARS)

    LOCAL_C_INCLUDES := $(LOCAL_PATH)/sqlite-amalgamation-3071700

    LOCAL_MODULE := fts3-rank

    LOCAL_SRC_FILES := fts3-rank.c

    LOCAL_STATIC_LIBRARIES := libsqlite3

    #LOCAL_SHARED_LIBRARIES:=libsqlite3

    LOCAL_LDLIBS := -llog -lm

    #include $(BUILD_SHARED_LIBRARY)

    include $(BUILD_EXECUTABLE)

Answer 1

可能存在这种错误的一些不同原因。

可能LOCAL_PATH值不正确，请检查LOCAL_PATH初始化。删除其中的任何额外空格。 LOCAL_PATH := $(call my-dir)__
在调用任何jni函数之前，应将jni库加载到内存中。加载jni库如下。

静态{
```
System.loadLibrary("libmy-jni-module");
```
}

您可以参考this讨论

Answer 2

我通过反复试验以某种方式修复了它。这很奇怪。我想这是因为我两次使用LOCAL_PATH？

我终于使用这个Android.mk构建它了

#LOCAL_PATH is used to locate source files in the development tree.

#the macro my-dir provided by the build system, indicates the path of the current directory

LOCAL_PATH := $(call my-dir)




#####################################################################

#            build sqlite3                                          #

#####################################################################

include $(CLEAR_VARS)

LOCAL_C_INCLUDES := sqlite-amalgamation-3071700

LOCAL_MODULE := sqlite3

LOCAL_SRC_FILES := sqlite-amalgamation-3071700/sqlite3.c

include $(BUILD_STATIC_LIBRARY)

#include $(BUILD_SHARED_LIBRARY)





#####################################################################

#            build our code                    #

#####################################################################

include $(CLEAR_VARS)

LOCAL_C_INCLUDES := $(LOCAL_PATH)/sqlite-amalgamation-3071700

LOCAL_MODULE := fts3-rank

LOCAL_SRC_FILES := fts3-rank.c

LOCAL_STATIC_LIBRARIES := libsqlite3

#LOCAL_SHARED_LIBRARIES:=libsqlite3

LOCAL_LDLIBS := -llog -lm

include $(BUILD_SHARED_LIBRARY)

#need main function to have executable

#include $(BUILD_EXECUTABLE)

没有规则使目标错误android ndk build sqlite

2 个答案: