costmap_2d compilation warning

[bit-pirate]

Just noticed this:

CMake Warning at navigation/costmap_2d/CMakeLists.txt:87 (add_library):
  Cannot generate a safe runtime search path for target costmap_2d because
  there is a cycle in the constraint graph:

    dir 0 is [/opt/ros/indigo/lib]
      dir 1 must precede it due to runtime library [librosbag.so]
      dir 2 must precede it due to runtime library [libvoxel_grid.so]
    dir 1 is [/opt/yujin/amd64/indigo-devel/lib]
      dir 2 must precede it due to runtime library [libvoxel_grid.so]
    dir 2 is [/opt/groot/navi_ws/devel/lib]

  Some of these libraries may not be found correctly.

Should we worry about this?