undefined reference

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Hi all I know that undefined reference error comes from the edition links during the compilation.

So what I want to do is to add an external libraries (contain method's class definition) to my package to use it in my program, so how can I do that ?

• I'm working with ROS hydro-64bits.
• I have a folder contains files *.so .

This is my CmakeList.txt

    cmake_minimum_required(VERSION 2.4.6)
    include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake)

    # Set the build type.  Options are:
    #  Coverage       : w/ debug symbols, w/o optimization, w/ code-coverage
    #  Debug          : w/ debug symbols, w/o optimization
    #  Release        : w/o debug symbols, w/ optimization
    #  RelWithDebInfo : w/ debug symbols, w/ optimization
    #  MinSizeRel     : w/o debug symbols, w/ optimization, stripped binaries
    #set(ROS_BUILD_TYPE RelWithDebInfo)

    rosbuild_init()

    #set the default path for built executables to the "bin" directory
    set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
    #set the default path for built libraries to the "lib" directory
    set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)

    #uncomment if you have defined messages
    #rosbuild_genmsg()
    #uncomment if you have defined services
    #rosbuild_gensrv()

    #common commands for building c++ executables and libraries
    #rosbuild_add_library(${PROJECT_NAME} src/example.cpp)
    #target_link_libraries(${PROJECT_NAME} another_library)
    #rosbuild_add_boost_directories()
    #rosbuild_link_boost(${PROJECT_NAME} thread)
    #rosbuild_add_executable(example examples/example.cpp)
    #target_link_libraries(example ${PROJECT_NAME})
    #target_link_libraries(MCORE /home/jros/roskinectueye/kinectueye/lib)
    #target_link_libraries(MCORE /lib)

    rosbuild_add_executable(kinectueye src/kinect_ueye.cpp)
    set(LIB_DIR ${PROJECT_SOURCE_DIR}/lib10)
    set(MY_LIBS ${LIB_DIR}/libMINTERFACE.so.0)

   target_link_libraries(kinectueye
    ${catkin_LIBRARIES} 
    ${MY_LIBS}
     )

Thank you