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What I did when using opencv was find_package cv_bridge, let catkin depend on it and link against the catkin libraries. It works for me, feel free to down vote this answer if it is not nice ;)
find_package(catkin REQUIRED COMPONENTS cv_bridge roscpp)
catkin_package(
CATKIN_DEPENDS cv_bridge roscpp
DEPENDS system_lib
)
target_link_libraries(my_node ${catkin_LIBRARIES})
What I did when using opencv was find_package cv_bridge, let catkin depend on it and link against the catkin libraries. It works for me, feel free to down vote this answer if it is not nice ;)
find_package(catkin REQUIRED COMPONENTS cv_bridge roscpp)
catkin_package(
CATKIN_DEPENDS cv_bridge roscpp
DEPENDS system_lib
)
target_link_libraries(my_node ${catkin_LIBRARIES})
Since many libraries will become system dependencies in the long run, this should still work later. In fact I also tried it on a platform where OpenCV was installed outside of ROS and it works
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