DRCSim 2.2.0 installation on 32 bit machine.

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I have installed gazebo 1.5 already and wanted to see how a humanoid robot is controlled in gazebo. I think Atalas is a good example to benchmark and tried to install DRCSim. The tutorial says 32 bit machine users should compile the source to use the latest version. I tried to follow the instruction, but it said /usr/local/share/gazebo/setup.sh was not found. There was another path for the setup.sh, /usr/share/gazebo/setup.sh and I re-tried with the path. However, during 'make', errors were occured at around 77%.

 [ 77%] [ 77%] Built target VRCPlugin
Built target gazebo_ros_api_plugin
/usr/bin/ld: skipping incompatible /home/biped/drcsim-2.2.0/ros/atlas_msgs/../../plugins/AtlasSimInterface_1.0.3/lib64/libAtlasSimInterface.so when searching for -lAtlasSimInterface
/usr/bin/ld: skipping incompatible /home/biped/drcsim-2.2.0/plugins/AtlasSimInterface_1.0.3/lib64/libAtlasSimInterface.so when searching for -lAtlasSimInterface
/usr/bin/ld: cannot find -lAtlasSimInterface
collect2: ld returned 1 exit status
make[5]: *** [lib/libAtlasPlugin.so] Error 1
make[4]: *** [CMakeFiles/AtlasPlugin.dir/all] Error 2
make[4]: *** Waiting for unfinished jobs....
[ 77%] [ 77%] Built target gazebo_ros_controller_manager
[ 77%] Built target gazebo_ros_camera_utils
Built target gazebo_ros_imu
make[3]: *** [all] Error 2
make[2]: *** [ros/atlas_msgs-prefix/src/atlas_msgs-stamp/atlas_msgs-build] Error 2
make[1]: *** [ros/CMakeFiles/atlas_msgs.dir/all] Error 2
make: *** [all] Error 2

I have no idea what's wrong with it.