Android NDK error when linking shared C library

Question

I\'m trying to link some C files to an NDK project that I\'m working on, and set my CMakeLists.txt file up like below.

cmake_minimum_required(VE         


        

Answer 1

I think you misunderstand the cmake syntax. Below is enough for your case.

target_link_libraries(
    main
    ${log-lib})

Below are source files, NOT library names.

communication_api
cybtldr_api
cybtldr_parse
cybtldr_command

So, you cmake statements are not correct.

If you want to make less confusing, try to make below changes.

find_library( # Sets the name of the path variable.
        log-lib
        log)


add_library( # Specifies the name of the library.
        my-native-lib SHARED
        main.c
        communication_api.c
        cybtldr_api.c
        cybtldr_parse.c
        cybtldr_command.c
        )
target_link_libraries(my-native-lib
        ${log-lib})

But, remember to change your Java side as well, see below example:

// Used to load the 'my-native-lib' library on application startup.
static {
    System.loadLibrary("my-native-lib");
}

I just enclose my JniExample project in case you need: https://github.com/russell-shizhen/JniExample