In my OOT module, I am using `libbluetooth-dev` library by BlueZ. I am
using a couple of APIs of it such as `hci_read_clock`. I am using
FindBluetooth cmake module (https://github.com/greatscottgadgets/ubertooth/
blob/master/host/cmake/modules/FindBLUETOOTH.cmake) and I thought that I
correctly linked the library.
find_package(Bluetooth REQUIRED)
if(NOT LIBBLUETOOTH_FOUND)
message(FATAL_ERROR "bluez (libbluetooth-dev) required")
endif()
include_directories(
${CMAKE_SOURCE_DIR}/lib
${CMAKE_SOURCE_DIR}/include
${CMAKE_BINARY_DIR}/lib
${CMAKE_BINARY_DIR}/include
${Boost_INCLUDE_DIRS}
${CPPUNIT_INCLUDE_DIRS}
${GNURADIO_ALL_INCLUDE_DIRS}
${LIBBLUETOOTH_INCLUDE_DIR}B
)
link_directories(
${Boost_LIBRARY_DIRS}
${CPPUNIT_LIBRARY_DIRS}
${GNURADIO_RUNTIME_LIBRARY_DIRS}
${LIBBLUETOOTH_LIBRARIES}
)
And I successfully built and installed my OOT module. To test it, I made a
simple flow graph but it fails to run. After some debugging, It seems that
I reached at the dead end.
Debug log:
$ /usr/local/lib/python2.7/dist-packages/my_oot_module
$ python my_oot_module_swig.py
Traceback (most recent call last):
File "my_oot_module_swig.py", line 28, in <module>
_my_oot_module_swig = swig_import_helper()
File "my_oot_module_swig.py", line 24, in swig_import_helper
_mod = imp.load_module('_my_oot_module_swig', fp, pathname, description)
ImportError: /usr/local/lib/libgnuradio-my_oot_module.so: undefined symbol:
hci_read_clock
I wonder that the above error is C++ level error or Python level error. And
how can I fix it?
If infromation given in this post is not sufficient, please let me know it.
Regards,
Jeon.
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