How to import external Static libraries(.a) and header files(.h)

asked 2019-06-20 10:27:55 -0500

I am trying to create a ros node on raspberry pi for a sensor which requires an external library (and header files) to be used. I am having trouble finding enough documentation on how to change the cmakelists.txt file to include them. Adding the target_link_libraries did not resolve the issue.

all external libraries are in a folder called lib and all header files are in a folder called include

This is the file for reference:

cmake_minimum_required(VERSION 2.8.3)
project(ros_tutorials_topic)
 find_package(catkin REQUIRED    COMPONENTS
     message_generation  
     roscpp
    rospy
    std_msgs
    genmsg  
    geometry_msgs 
) 

 add_message_files(
       FILES
       my_msg.msg
       sensData.msg
     )

generate_messages(
       DEPENDENCIES
       std_msgs
       geometry_msgs
     )

catkin_package(
    #  INCLUDE_DIRS include
      LIBRARIES ros_tutorials_topic message_runtime
      CATKIN_DEPENDS roscpp std_msgs geometry_msgs
    #  DEPENDS system_lib
    )

include_directories(include  ${catkin_INCLUDE_DIRS})

add_executable(topic_publisher src/topic_publisher.cpp)
add_dependencies(topic_publisher ros_tutorials_topic_generate_messages_cpp)
target_link_libraries(topic_publisher ${catkin_LIBRARIES}
      /home/pi/catkin_ws/src/acconeer_sensor/lib/libacconeer.a
      /home/pi/catkin_ws/src/acconeer_sensor/lib/libacconeer_a111_r2c.a
      /home/pi/catkin_ws/src/acconeer_sensor/lib/libacc_service.a

)
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Comments

Can you include exact copies of the error messages your getting as well. We need to know more than just 'it doesn't work'

One thing I can spot though is that # INCLUDE_DIRS include is still commented out so your build will not be looking in the include directory you've created.

PeteBlackerThe3rd gravatar imagePeteBlackerThe3rd ( 2019-06-20 10:41:19 -0500 )edit

The error we are getting is undefined reference to "acc_service()". (acc_service() is a function defined inside the library)

acorn2t1 gravatar imageacorn2t1 ( 2019-06-24 02:40:38 -0500 )edit