Android ndk(cmake): 'undefined reference to `__android_log_write' when using log api in the second jni library

Question

I use Android Studio 2.2 and cmake to build jni file.

I want to show log in jni file but get error message \"undefined reference to `__android_log_write\".

M

Answer 1

I finally found I should separated to do the link.

target_link_libraries( # Specifies the target library.
                   test-lib
                   native-lib
                   # Links the target library to the log library
                   # included in the NDK.
                   ${log-lib} )

target_link_libraries( # Specifies the target library.
                   native-lib
                   # Links the target library to the log library
                   # included in the NDK.
                   ${log-lib} )