Hi John,<br><br>it posts as following:<br><br>jolin@ubuntu:~$ ldd /opt/ros/cturtle/stacks/pr2_controllers/pr2_mechanism_controllers/lib/libpr2_mechanism_controllers.so <br>    linux-gate.so.1 =>  (0x00a2c000)<br>    libboost_filesystem.so.1.40.0 => /usr/lib/libboost_filesystem.so.1.40.0 (0x00bb7000)<br>
    librobot_mechanism_controllers.so => /opt/ros/cturtle/stacks/pr2_controllers/robot_mechanism_controllers/lib/librobot_mechanism_controllers.so (0x001d1000)<br>    libtf_conversions.so => /opt/ros/cturtle/stacks/geometry/tf_conversions/lib/libtf_conversions.so (0x00d88000)<br>
    libpr2_controller_manager.so => /opt/ros/cturtle/stacks/pr2_mechanism/pr2_controller_manager/lib/libpr2_controller_manager.so (0x002e1000)<br>    libpr2_mechanism_model.so => /opt/ros/cturtle/stacks/pr2_mechanism/pr2_mechanism_model/lib/libpr2_mechanism_model.so (0x00de7000)<br>
    libkdl_parser.so => /opt/ros/cturtle/stacks/robot_model/kdl_parser/lib/libkdl_parser.so (0x00b12000)<br>    liborocos-kdl.so.1.0 => /opt/ros/cturtle/stacks/geometry/kdl/lib/liborocos-kdl.so.1.0 (0x00f37000)<br>    liburdf.so => /opt/ros/cturtle/stacks/robot_model/urdf/lib/liburdf.so (0x00861000)<br>
    libcontrol_toolbox.so => /opt/ros/cturtle/stacks/pr2_controllers/control_toolbox/lib/libcontrol_toolbox.so (0x003c2000)<br>    libtf.so => /opt/ros/cturtle/stacks/geometry/tf/lib/libtf.so (0x0025d000)<br>    libsensor_msgs.so => /opt/ros/cturtle/stacks/common_msgs/sensor_msgs/lib/libsensor_msgs.so (0x00ec3000)<br>
    libBulletDynamics.so.2.76 => /opt/ros/cturtle/stacks/geometry/bullet/lib/libBulletDynamics.so.2.76 (0x00973000)<br>    libBulletCollision.so.2.76 => /opt/ros/cturtle/stacks/geometry/bullet/lib/libBulletCollision.so.2.76 (0x003d4000)<br>
    libLinearMath.so.2.76 => /opt/ros/cturtle/stacks/geometry/bullet/lib/libLinearMath.so.2.76 (0x00afc000)<br>    libmessage_filters.so => /opt/ros/cturtle/ros/core/message_filters/lib/libmessage_filters.so (0x002a8000)<br>
    libpoco_lite.so => /opt/ros/cturtle/stacks/common/pluginlib/lib/libpoco_lite.so (0x00a9e000)<br>    libtinyxml.so => /opt/ros/cturtle/stacks/common/tinyxml/libtinyxml.so (0x0090c000)<br>    librosrecorder.so => /opt/ros/cturtle/ros/tools/rosrecord/lib/librosrecorder.so (0x002ae000)<br>
    librosbag.so => /opt/ros/cturtle/ros/tools/rosbag/lib/librosbag.so (0x004b0000)<br>    libtopic_tools.so => /opt/ros/cturtle/ros/tools/topic_tools/lib/libtopic_tools.so (0x00375000)<br>    libros.so => /opt/ros/cturtle/ros/core/roscpp/lib/libros.so (0x00537000)<br>
    libboost_signals.so.1.40.0 => /usr/lib/libboost_signals.so.1.40.0 (0x0034d000)<br>    libXmlRpc.so => /opt/ros/cturtle/ros/3rdparty/xmlrpcpp/lib/libXmlRpc.so (0x009fd000)<br>    librosconsole.so => /opt/ros/cturtle/ros/core/rosconsole/lib/librosconsole.so (0x0037d000)<br>
    libboost_thread.so.1.40.0 => /usr/lib/libboost_thread.so.1.40.0 (0x003a0000)<br>    liblog4cxx.so.10 => /usr/lib/liblog4cxx.so.10 (0x0068b000)<br>    libroslib.so => /opt/ros/cturtle/ros/core/roslib/lib/libroslib.so (0x00b96000)<br>
    librospack.so => /opt/ros/cturtle/ros/tools/rospack/lib/librospack.so (0x0082a000)<br>    librosstack.so => /opt/ros/cturtle/ros/tools/rospack/lib/librosstack.so (0x00361000)<br>    libboost_system.so.1.40.0 => /usr/lib/libboost_system.so.1.40.0 (0x00c1a000)<br>
    libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00c1f000)<br>    libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0x00fd4000)<br>    libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x008be000)<br>    libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0x008dd000)<br>
    libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00ffa000)<br>    librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0x00ed1000)<br>    libltdl.so.7 => /usr/lib/libltdl.so.7 (0x003b5000)<br>    libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0x002bf000)<br>
    libboost_iostreams.so.1.40.0 => /usr/lib/libboost_iostreams.so.1.40.0 (0x008f6000)<br>    libbz2.so.1.0 => /lib/libbz2.so.1.0 (0x00923000)<br>    libboost_regex.so.1.40.0 => /usr/lib/libboost_regex.so.1.40.0 (0x16116000)<br>
    libboost_program_options.so.1.40.0 => /usr/lib/libboost_program_options.so.1.40.0 (0x00a2d000)<br>    libaprutil-1.so.0 => /usr/lib/libaprutil-1.so.0 (0x00d9e000)<br>    <a href="http://libdb-4.8.so">libdb-4.8.so</a> => /usr/lib/<a href="http://libdb-4.8.so">libdb-4.8.so</a> (0x0b466000)<br>
    libapr-1.so.0 => /usr/lib/libapr-1.so.0 (0x00935000)<br>    /lib/ld-linux.so.2 (0x002c4000)<br>    libz.so.1 => /lib/libz.so.1 (0x009ca000)<br>    libicudata.so.42 => /usr/lib/libicudata.so.42 (0xb68be000)<br>
    libicui18n.so.42 => /usr/lib/libicui18n.so.42 (0x06bac000)<br>    libicuuc.so.42 => /usr/lib/libicuuc.so.42 (0x0276c000)<br>    libuuid.so.1 => /lib/libuuid.so.1 (0x00858000)<br>    libcrypt.so.1 => /lib/tls/i686/cmov/libcrypt.so.1 (0x00eff000)<br>
    libexpat.so.1 => /lib/libexpat.so.1 (0x00a75000)<br>    <br>Thanks in advanced!<br>